diff options
Diffstat (limited to 'test/CodeGen/WinEH')
-rw-r--r-- | test/CodeGen/WinEH/cppeh-catch-all.ll | 97 | ||||
-rw-r--r-- | test/CodeGen/WinEH/cppeh-catch-scalar.ll | 126 | ||||
-rw-r--r-- | test/CodeGen/WinEH/cppeh-catch-unwind.ll | 244 | ||||
-rw-r--r-- | test/CodeGen/WinEH/cppeh-frame-vars.ll | 272 | ||||
-rw-r--r-- | test/CodeGen/WinEH/cppeh-inalloca.ll | 199 | ||||
-rw-r--r-- | test/CodeGen/WinEH/cppeh-min-unwind.ll | 99 | ||||
-rw-r--r-- | test/CodeGen/WinEH/cppeh-nested-1.ll | 199 | ||||
-rw-r--r-- | test/CodeGen/WinEH/cppeh-nested-2.ll | 324 | ||||
-rw-r--r-- | test/CodeGen/WinEH/cppeh-nested-3.ll | 273 | ||||
-rw-r--r-- | test/CodeGen/WinEH/cppeh-nonalloca-frame-values.ll | 273 | ||||
-rw-r--r-- | test/CodeGen/WinEH/lit.local.cfg | 12 | ||||
-rw-r--r-- | test/CodeGen/WinEH/seh-simple.ll | 138 |
12 files changed, 2256 insertions, 0 deletions
diff --git a/test/CodeGen/WinEH/cppeh-catch-all.ll b/test/CodeGen/WinEH/cppeh-catch-all.ll new file mode 100644 index 0000000..6e69862 --- /dev/null +++ b/test/CodeGen/WinEH/cppeh-catch-all.ll @@ -0,0 +1,97 @@ +; RUN: opt -mtriple=x86_64-pc-windows-msvc -winehprepare -S -o - < %s | FileCheck %s + +; This test is based on the following code: +; +; void test() +; { +; try { +; may_throw(); +; } catch (...) { +; handle_exception(); +; } +; } +; +; Parts of the IR have been hand-edited to simplify the test case. +; The full IR will be restored when Windows C++ EH support is complete. + +; ModuleID = 'catch-all.cpp' +target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" +target triple = "x86_64-pc-windows-msvc" + +; The function entry in this case remains unchanged. +; CHECK: define void @_Z4testv() #0 { +; CHECK: entry: +; CHECK: invoke void @_Z9may_throwv() +; CHECK: to label %invoke.cont unwind label %[[LPAD_LABEL:lpad[0-9]+]] + +; Function Attrs: uwtable +define void @_Z4testv() #0 { +entry: + %exn.slot = alloca i8* + %ehselector.slot = alloca i32 + invoke void @_Z9may_throwv() + to label %invoke.cont unwind label %lpad + +invoke.cont: ; preds = %entry + br label %try.cont + +; CHECK: [[LPAD_LABEL]]:{{[ ]+}}; preds = %entry +; CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) +; CHECK-NEXT: catch i8* null +; CHECK-NEXT: [[RECOVER:\%.+]] = call i8* (...)* @llvm.eh.actions(i32 1, i8* null, i8* null, i8* (i8*, i8*)* @_Z4testv.catch) +; CHECK-NEXT: indirectbr i8* [[RECOVER]], [label %try.cont] + +lpad: ; preds = %entry + %tmp = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) + catch i8* null + %tmp1 = extractvalue { i8*, i32 } %tmp, 0 + store i8* %tmp1, i8** %exn.slot + %tmp2 = extractvalue { i8*, i32 } %tmp, 1 + store i32 %tmp2, i32* %ehselector.slot + br label %catch + +; CHECK-NOT: catch: + +catch: ; preds = %lpad + %exn = load i8*, i8** %exn.slot + call void @llvm.eh.begincatch(i8* %exn, i8* null) #2 + call void @_Z16handle_exceptionv() + br label %invoke.cont2 + +; CHECK-NOT: invoke.cont2: + +invoke.cont2: ; preds = %catch + call void @llvm.eh.endcatch() + br label %try.cont + +try.cont: ; preds = %invoke.cont2, %invoke.cont + ret void + +; CHECK: } +} + +; CHECK: define internal i8* @_Z4testv.catch(i8*, i8*) { +; CHECK: entry: +; CHECK: call void @_Z16handle_exceptionv() +; CHECK: ret i8* blockaddress(@_Z4testv, %try.cont) +; CHECK: } + +declare void @_Z9may_throwv() #1 + +declare i32 @__CxxFrameHandler3(...) + +declare void @llvm.eh.begincatch(i8*, i8*) + +declare void @_Z16handle_exceptionv() #1 + +declare void @llvm.eh.endcatch() + +attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } +attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } +attributes #2 = { noinline noreturn nounwind } +attributes #3 = { nounwind } +attributes #4 = { noreturn nounwind } + +!llvm.ident = !{!0} + +!0 = !{!"clang version 3.7.0 (trunk 226027)"} diff --git a/test/CodeGen/WinEH/cppeh-catch-scalar.ll b/test/CodeGen/WinEH/cppeh-catch-scalar.ll new file mode 100644 index 0000000..0f8a7a8 --- /dev/null +++ b/test/CodeGen/WinEH/cppeh-catch-scalar.ll @@ -0,0 +1,126 @@ +; RUN: opt -mtriple=x86_64-pc-windows-msvc -winehprepare -S -o - < %s | FileCheck %s + +; This test is based on the following code: +; +; void test() +; { +; try { +; may_throw(); +; } catch (int i) { +; handle_int(i); +; } +; } +; +; Parts of the IR have been hand-edited to simplify the test case. +; The full IR will be restored when Windows C++ EH support is complete. + +;ModuleID = 'cppeh-catch-scalar.cpp' +target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" +target triple = "x86_64-pc-windows-msvc" + +@_ZTIi = external constant i8* + +; The function entry will be rewritten like this. +; CHECK: define void @_Z4testv() #0 { +; CHECK: entry: +; CHECK: [[I_PTR:\%.+]] = alloca i32, align 4 +; CHECK: call void (...)* @llvm.frameescape(i32* [[I_PTR]]) +; CHECK: invoke void @_Z9may_throwv() +; CHECK: to label %invoke.cont unwind label %[[LPAD_LABEL:lpad[0-9]+]] + +; Function Attrs: uwtable +define void @_Z4testv() #0 { +entry: + %exn.slot = alloca i8* + %ehselector.slot = alloca i32 + %i = alloca i32, align 4 + invoke void @_Z9may_throwv() + to label %invoke.cont unwind label %lpad + +invoke.cont: ; preds = %entry + br label %try.cont + +; CHECK: [[LPAD_LABEL]]:{{[ ]+}}; preds = %entry +; CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) +; CHECK-NEXT: catch i8* bitcast (i8** @_ZTIi to i8*) +; CHECK-NEXT: [[RECOVER:\%.+]] = call i8* (...)* @llvm.eh.actions(i32 1, i8* bitcast (i8** @_ZTIi to i8*), i32* %i, i8* (i8*, i8*)* @_Z4testv.catch) +; CHECK-NEXT: indirectbr i8* [[RECOVER]], [label %try.cont] + +lpad: ; preds = %entry + %tmp = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) + catch i8* bitcast (i8** @_ZTIi to i8*) + %tmp1 = extractvalue { i8*, i32 } %tmp, 0 + store i8* %tmp1, i8** %exn.slot + %tmp2 = extractvalue { i8*, i32 } %tmp, 1 + store i32 %tmp2, i32* %ehselector.slot + br label %catch.dispatch + +; CHECK-NOT: catch-dispatch: + +catch.dispatch: ; preds = %lpad + %sel = load i32, i32* %ehselector.slot + %tmp3 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*)) #3 + %matches = icmp eq i32 %sel, %tmp3 + br i1 %matches, label %catch, label %eh.resume + +; CHECK-NOT: catch: + +catch: ; preds = %catch.dispatch + %exn11 = load i8*, i8** %exn.slot + %i.i8 = bitcast i32* %i to i8* + call void @llvm.eh.begincatch(i8* %exn11, i8* %i.i8) #3 + %tmp7 = load i32, i32* %i, align 4 + call void @_Z10handle_inti(i32 %tmp7) + br label %invoke.cont2 + +; CHECK-NOT: invoke.cont2: + +invoke.cont2: ; preds = %catch + call void @llvm.eh.endcatch() #3 + br label %try.cont + +try.cont: ; preds = %invoke.cont2, %invoke.cont + ret void + +; CHECK-NOT: eh.resume: + +eh.resume: ; preds = %catch.dispatch + %exn3 = load i8*, i8** %exn.slot + %sel4 = load i32, i32* %ehselector.slot + %lpad.val = insertvalue { i8*, i32 } undef, i8* %exn3, 0 + %lpad.val5 = insertvalue { i8*, i32 } %lpad.val, i32 %sel4, 1 + resume { i8*, i32 } %lpad.val5 + +; CHECK: } +} + +; CHECK: define internal i8* @_Z4testv.catch(i8*, i8*) { +; CHECK: entry: +; CHECK: [[RECOVER_I:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @_Z4testv to i8*), i8* %1, i32 0) +; CHECK: [[I_PTR1:\%.+]] = bitcast i8* [[RECOVER_I]] to i32* +; CHECK: [[TMP:\%.+]] = load i32, i32* [[I_PTR1]], align 4 +; CHECK: call void @_Z10handle_inti(i32 [[TMP]]) +; CHECK: ret i8* blockaddress(@_Z4testv, %try.cont) +; CHECK: } + +declare void @_Z9may_throwv() #1 + +declare i32 @__CxxFrameHandler3(...) + +; Function Attrs: nounwind readnone +declare i32 @llvm.eh.typeid.for(i8*) #2 + +declare void @llvm.eh.begincatch(i8*, i8*) + +declare void @llvm.eh.endcatch() + +declare void @_Z10handle_inti(i32) #1 + +attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } +attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } +attributes #2 = { nounwind readnone } +attributes #3 = { nounwind } + +!llvm.ident = !{!0} + +!0 = !{!"clang version 3.7.0 (trunk 227474) (llvm/trunk 227508)"} diff --git a/test/CodeGen/WinEH/cppeh-catch-unwind.ll b/test/CodeGen/WinEH/cppeh-catch-unwind.ll new file mode 100644 index 0000000..3db1635 --- /dev/null +++ b/test/CodeGen/WinEH/cppeh-catch-unwind.ll @@ -0,0 +1,244 @@ +; RUN: opt -mtriple=x86_64-pc-windows-msvc -winehprepare -S -o - < %s | FileCheck %s + +; This test was generated from the following source: +; +; void test() { +; try { +; SomeClass obj; +; may_throw(); +; try { +; may_throw(); +; } catch (int) { +; handle_exception(); +; } +; } catch (int) { +; handle_exception(); +; } +; } +; +; The code above was compiled with the -O2 option. + +; ModuleID = 'catch-unwind.cpp' +target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" +target triple = "x86_64-pc-windows-msvc" + +%rtti.TypeDescriptor2 = type { i8**, i8*, [3 x i8] } +%class.SomeClass = type { i8 } + +$"\01??_R0H@8" = comdat any + +@"\01??_7type_info@@6B@" = external constant i8* +@"\01??_R0H@8" = linkonce_odr global %rtti.TypeDescriptor2 { i8** @"\01??_7type_info@@6B@", i8* null, [3 x i8] c".H\00" }, comdat + + +; CHECK-LABEL: define void @"\01?test@@YAXXZ"() #0 { +; CHECK: entry: +; CHECK: [[UNWIND_HELP:\%.+]] = alloca i64 +; CHECK: [[OBJ_PTR:\%.+]] = alloca %class.SomeClass +; CHECK: [[TMP0:\%.+]] = alloca i32, align 4 +; CHECK: [[TMP1:\%.+]] = alloca i32, align 4 +; CHECK: call void (...)* @llvm.frameescape(i32* [[TMP1]], %class.SomeClass* [[OBJ_PTR]], i32* [[TMP0]]) +; CHECK: [[UNWIND_HELP_i8:\%.+]] = bitcast i64* [[UNWIND_HELP]] to i8* +; CHECK: call void @llvm.eh.unwindhelp(i8* [[UNWIND_HELP_i8]]) +; CHECK: %call = invoke %class.SomeClass* @"\01??0SomeClass@@QEAA@XZ"(%class.SomeClass* %obj) +; CHECK: to label %invoke.cont unwind label %[[LPAD_LABEL:lpad[0-9]+]] + +; Function Attrs: uwtable +define void @"\01?test@@YAXXZ"() #0 { +entry: + %obj = alloca %class.SomeClass, align 1 + %0 = alloca i32, align 4 + %1 = alloca i32, align 4 + %call = invoke %class.SomeClass* @"\01??0SomeClass@@QEAA@XZ"(%class.SomeClass* %obj) + to label %invoke.cont unwind label %lpad + +; CHECK: invoke.cont: +; CHECK: invoke void @"\01?may_throw@@YAXXZ"() +; CHECK: to label %invoke.cont2 unwind label %[[LPAD1_LABEL:lpad[0-9]+]] + +invoke.cont: ; preds = %entry + invoke void @"\01?may_throw@@YAXXZ"() + to label %invoke.cont2 unwind label %lpad1 + +; CHECK: invoke.cont2: +; CHECK: invoke void @"\01?may_throw@@YAXXZ"() +; CHECK: to label %try.cont unwind label %[[LPAD3_LABEL:lpad[0-9]+]] + +invoke.cont2: ; preds = %invoke.cont + invoke void @"\01?may_throw@@YAXXZ"() + to label %try.cont unwind label %lpad3 + +; CHECK: [[LPAD_LABEL]]:{{[ ]+}}; preds = %entry +; CHECK: [[LPAD_VAL:\%.+]] = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) +; CHECK-NEXT: catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) +; CHECK-NEXT: [[RECOVER:\%.+]] = call i8* (...)* @llvm.eh.actions(i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*), i32* [[TMP1]], i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch") +; CHECK-NEXT: indirectbr i8* [[RECOVER]], [label %try.cont15] + +lpad: ; preds = %entry + %2 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) + catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) + %3 = extractvalue { i8*, i32 } %2, 0 + %4 = extractvalue { i8*, i32 } %2, 1 + br label %catch.dispatch7 + +; CHECK: [[LPAD1_LABEL]]:{{[ ]+}}; preds = %invoke.cont +; CHECK: [[LPAD1_VAL:\%.+]] = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) +; CHECK-NEXT: cleanup +; CHECK-NEXT: catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) +; CHECK-NEXT: [[RECOVER1:\%.+]] = call i8* (...)* @llvm.eh.actions(i32 0, void (i8*, i8*)* @"\01?test@@YAXXZ.cleanup", i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*), i32* [[TMP1]], i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch") +; CHECK-NEXT: indirectbr i8* [[RECOVER1]], [label %try.cont15] + +lpad1: ; preds = %invoke.cont + %5 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) + cleanup + catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) + %6 = extractvalue { i8*, i32 } %5, 0 + %7 = extractvalue { i8*, i32 } %5, 1 + br label %ehcleanup + +; CHECK: [[LPAD3_LABEL]]:{{[ ]+}}; preds = %invoke.cont2 +; CHECK: [[LPAD3_VAL:\%.+]] = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) +; CHECK-NEXT: cleanup +; CHECK-NEXT: catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) +; CHECK-NEXT: [[RECOVER3:\%.+]] = call i8* (...)* @llvm.eh.actions(i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*), i32* [[TMP0]], i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch1", i32 0, void (i8*, i8*)* @"\01?test@@YAXXZ.cleanup") +; CHECK-NEXT: indirectbr i8* [[RECOVER3]], [label %try.cont] + +lpad3: ; preds = %invoke.cont2 + %8 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) + cleanup + catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) + %9 = extractvalue { i8*, i32 } %8, 0 + %10 = extractvalue { i8*, i32 } %8, 1 + %11 = call i32 @llvm.eh.typeid.for(i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*)) #3 + %matches = icmp eq i32 %10, %11 + br i1 %matches, label %catch, label %ehcleanup + +; CHECK-NOT: catch: +catch: ; preds = %lpad3 + %12 = bitcast i32* %0 to i8* + call void @llvm.eh.begincatch(i8* %9, i8* %12) #3 + invoke void @"\01?handle_exception@@YAXXZ"() + to label %invoke.cont6 unwind label %lpad5 + +; CHECK-NOT: invoke.cont6: +invoke.cont6: ; preds = %catch + call void @llvm.eh.endcatch() #3 + br label %try.cont + +try.cont: ; preds = %invoke.cont2, %invoke.cont6 + call void @"\01??1SomeClass@@QEAA@XZ"(%class.SomeClass* %obj) #3 + br label %try.cont15 + +; CHECK-NOT: lpad5: +lpad5: ; preds = %catch + %13 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) + cleanup + catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) + %14 = extractvalue { i8*, i32 } %13, 0 + %15 = extractvalue { i8*, i32 } %13, 1 + call void @llvm.eh.endcatch() #3 + br label %ehcleanup + +; CHECK-NOT: ehcleanup +ehcleanup: ; preds = %lpad5, %lpad3, %lpad1 + %exn.slot.0 = phi i8* [ %14, %lpad5 ], [ %9, %lpad3 ], [ %6, %lpad1 ] + %ehselector.slot.0 = phi i32 [ %15, %lpad5 ], [ %10, %lpad3 ], [ %7, %lpad1 ] + call void @"\01??1SomeClass@@QEAA@XZ"(%class.SomeClass* %obj) #3 + br label %catch.dispatch7 + +; CHECK-NOT: catch.dispatch7: +catch.dispatch7: ; preds = %ehcleanup, %lpad + %exn.slot.1 = phi i8* [ %exn.slot.0, %ehcleanup ], [ %3, %lpad ] + %ehselector.slot.1 = phi i32 [ %ehselector.slot.0, %ehcleanup ], [ %4, %lpad ] + %16 = call i32 @llvm.eh.typeid.for(i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*)) #3 + %matches9 = icmp eq i32 %ehselector.slot.1, %16 + br i1 %matches9, label %catch10, label %eh.resume + +; CHECK-NOT: catch10: +catch10: ; preds = %catch.dispatch7 + %17 = bitcast i32* %1 to i8* + call void @llvm.eh.begincatch(i8* %exn.slot.1, i8* %17) #3 + call void @"\01?handle_exception@@YAXXZ"() + br label %invoke.cont13 + +; CHECK-NOT: invoke.cont13: +invoke.cont13: ; preds = %catch10 + call void @llvm.eh.endcatch() #3 + br label %try.cont15 + +try.cont15: ; preds = %invoke.cont13, %try.cont + ret void + +; CHECK-NOT: eh.resume +eh.resume: ; preds = %catch.dispatch7 + %lpad.val = insertvalue { i8*, i32 } undef, i8* %exn.slot.1, 0 + %lpad.val18 = insertvalue { i8*, i32 } %lpad.val, i32 %ehselector.slot.1, 1 + resume { i8*, i32 } %lpad.val18 + +; CHECK: } +} + +; CHECK-LABEL: define internal i8* @"\01?test@@YAXXZ.catch"(i8*, i8*) { +; CHECK: entry: +; CHECK: [[RECOVER_TMP1:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 0) +; CHECK: [[TMP1_PTR:\%.+]] = bitcast i8* [[RECOVER_TMP1]] to i32* +; CHECK: call void @"\01?handle_exception@@YAXXZ"() +; CHECK: ret i8* blockaddress(@"\01?test@@YAXXZ", %try.cont15) +; CHECK: } + +; CHECK-LABEL: define internal void @"\01?test@@YAXXZ.cleanup"(i8*, i8*) { +; CHECK: entry: +; CHECK: [[RECOVER_OBJ:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 1) +; CHECK: [[OBJ_PTR:\%.+]] = bitcast i8* %obj.i8 to %class.SomeClass* +; CHECK: call void @"\01??1SomeClass@@QEAA@XZ"(%class.SomeClass* [[OBJ_PTR]]) #3 +; CHECK: ret void +; CHECK: } + +; CHECK-LABEL: define internal i8* @"\01?test@@YAXXZ.catch1"(i8*, i8*) { +; CHECK: entry: +; CHECK: [[RECOVER_TMP0:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 2) +; CHECK: [[TMP0_PTR:\%.+]] = bitcast i8* [[RECOVER_TMP0]] to i32* +; CHECK: invoke void @"\01?handle_exception@@YAXXZ"() +; CHECK: to label %invoke.cont6 unwind label %[[LPAD5_LABEL:lpad[0-9]+]] +; +; CHECK: invoke.cont6: ; preds = %entry +; CHECK: ret i8* blockaddress(@"\01?test@@YAXXZ", %try.cont) +; +; CHECK: [[LPAD5_LABEL]]:{{[ ]+}}; preds = %entry +; CHECK: [[LPAD5_VAL:\%.+]] = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) +; CHECK: cleanup +; CHECK: catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) +; CHECK: unreachable +; CHECK: } + +declare %class.SomeClass* @"\01??0SomeClass@@QEAA@XZ"(%class.SomeClass* returned) #1 + +declare i32 @__CxxFrameHandler3(...) + +declare void @"\01?may_throw@@YAXXZ"() #1 + +; Function Attrs: nounwind readnone +declare i32 @llvm.eh.typeid.for(i8*) #2 + +; Function Attrs: nounwind +declare void @llvm.eh.begincatch(i8* nocapture, i8* nocapture) #3 + +declare void @"\01?handle_exception@@YAXXZ"() #1 + +; Function Attrs: nounwind +declare void @llvm.eh.endcatch() #3 + +; Function Attrs: nounwind +declare void @"\01??1SomeClass@@QEAA@XZ"(%class.SomeClass*) #4 + +attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } +attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } +attributes #2 = { nounwind readnone } +attributes #3 = { nounwind } +attributes #4 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } + +!llvm.module.flags = !{!0} +!llvm.ident = !{!1} + +!0 = !{i32 1, !"PIC Level", i32 2} +!1 = !{!"clang version 3.7.0 (trunk 232069) (llvm/trunk 232070)"} diff --git a/test/CodeGen/WinEH/cppeh-frame-vars.ll b/test/CodeGen/WinEH/cppeh-frame-vars.ll new file mode 100644 index 0000000..dc5ed1c --- /dev/null +++ b/test/CodeGen/WinEH/cppeh-frame-vars.ll @@ -0,0 +1,272 @@ +; RUN: opt -mtriple=x86_64-pc-windows-msvc -winehprepare -S -o - < %s | FileCheck %s + +; This test is based on the following code: +; +; struct SomeData { +; int a; +; int b; +; }; +; +; void may_throw(); +; void does_not_throw(int i); +; void dump(int *, int, SomeData&); +; +; void test() { +; int NumExceptions = 0; +; int ExceptionVal[10]; +; SomeData Data = { 0, 0 }; +; +; for (int i = 0; i < 10; ++i) { +; try { +; may_throw(); +; Data.a += i; +; } +; catch (int e) { +; ExceptionVal[NumExceptions] = e; +; ++NumExceptions; +; if (e == i) +; Data.b += e; +; else +; Data.a += e; +; } +; does_not_throw(NumExceptions); +; } +; dump(ExceptionVal, NumExceptions, Data); +; } + +; ModuleID = 'cppeh-frame-vars.cpp' +target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" +target triple = "x86_64-pc-windows-msvc" + +%rtti.TypeDescriptor2 = type { i8**, i8*, [3 x i8] } +%struct.SomeData = type { i32, i32 } + +$"\01??_R0H@8" = comdat any + +@"\01??_7type_info@@6B@" = external constant i8* +@"\01??_R0H@8" = linkonce_odr global %rtti.TypeDescriptor2 { i8** @"\01??_7type_info@@6B@", i8* null, [3 x i8] c".H\00" }, comdat + +; The function entry should be rewritten like this. +; CHECK: define void @"\01?test@@YAXXZ"() #0 { +; CHECK: entry: +; CHECK: [[NUMEXCEPTIONS_PTR:\%.+]] = alloca i32, align 4 +; CHECK: [[EXCEPTIONVAL_PTR:\%.+]] = alloca [10 x i32], align 16 +; CHECK: [[DATA_PTR:\%.+]] = alloca %struct.SomeData, align 4 +; CHECK: [[I_PTR:\%.+]] = alloca i32, align 4 +; CHECK: [[E_PTR:\%.+]] = alloca i32, align 4 +; CHECK: store i32 0, i32* [[NUMEXCEPTIONS_PTR]], align 4 +; CHECK: [[TMP:\%.+]] = bitcast %struct.SomeData* [[DATA_PTR]] to i8* +; CHECK: call void @llvm.memset(i8* [[TMP]], i8 0, i64 8, i32 4, i1 false) +; CHECK: store i32 0, i32* [[I_PTR]], align 4 +; CHECK: call void (...)* @llvm.frameescape(i32* [[E_PTR]], i32* [[NUMEXCEPTIONS_PTR]], [10 x i32]* [[EXCEPTIONVAL_PTR]], i32* [[I_PTR]], %struct.SomeData* [[DATA_PTR]]) +; CHECK: br label %for.cond + +; Function Attrs: uwtable +define void @"\01?test@@YAXXZ"() #0 { +entry: + %NumExceptions = alloca i32, align 4 + %ExceptionVal = alloca [10 x i32], align 16 + %Data = alloca %struct.SomeData, align 4 + %i = alloca i32, align 4 + %exn.slot = alloca i8* + %ehselector.slot = alloca i32 + %e = alloca i32, align 4 + store i32 0, i32* %NumExceptions, align 4 + %tmp = bitcast %struct.SomeData* %Data to i8* + call void @llvm.memset(i8* %tmp, i8 0, i64 8, i32 4, i1 false) + store i32 0, i32* %i, align 4 + br label %for.cond + +for.cond: ; preds = %for.inc, %entry + %tmp1 = load i32, i32* %i, align 4 + %cmp = icmp slt i32 %tmp1, 10 + br i1 %cmp, label %for.body, label %for.end + +; CHECK: for.body: +; CHECK: invoke void @"\01?may_throw@@YAXXZ"() +; CHECK: to label %invoke.cont unwind label %[[LPAD_LABEL:lpad[0-9]+]] + +for.body: ; preds = %for.cond + invoke void @"\01?may_throw@@YAXXZ"() + to label %invoke.cont unwind label %lpad + +invoke.cont: ; preds = %for.body + %tmp2 = load i32, i32* %i, align 4 + %a = getelementptr inbounds %struct.SomeData, %struct.SomeData* %Data, i32 0, i32 0 + %tmp3 = load i32, i32* %a, align 4 + %add = add nsw i32 %tmp3, %tmp2 + store i32 %add, i32* %a, align 4 + br label %try.cont + +; CHECK: [[LPAD_LABEL]]:{{[ ]+}}; preds = %for.body +; CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) +; CHECK-NEXT: catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) +; CHECK-NEXT: [[RECOVER:\%.+]] = call i8* (...)* @llvm.eh.actions(i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*), i32* %e, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch") +; CHECK-NEXT: indirectbr i8* [[RECOVER]], [label %try.cont] + +lpad: ; preds = %for.body + %tmp4 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) + catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) + %tmp5 = extractvalue { i8*, i32 } %tmp4, 0 + store i8* %tmp5, i8** %exn.slot + %tmp6 = extractvalue { i8*, i32 } %tmp4, 1 + store i32 %tmp6, i32* %ehselector.slot + br label %catch.dispatch + +; CHECK-NOT: catch.dispatch: + +catch.dispatch: ; preds = %lpad + %sel = load i32, i32* %ehselector.slot + %tmp7 = call i32 @llvm.eh.typeid.for(i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*)) #1 + %matches = icmp eq i32 %sel, %tmp7 + br i1 %matches, label %catch, label %eh.resume + +; CHECK-NOT: catch: + +catch: ; preds = %catch.dispatch + %exn = load i8*, i8** %exn.slot + %e.i8 = bitcast i32* %e to i8* + call void @llvm.eh.begincatch(i8* %exn, i8* %e.i8) #1 + %tmp11 = load i32, i32* %e, align 4 + %tmp12 = load i32, i32* %NumExceptions, align 4 + %idxprom = sext i32 %tmp12 to i64 + %arrayidx = getelementptr inbounds [10 x i32], [10 x i32]* %ExceptionVal, i32 0, i64 %idxprom + store i32 %tmp11, i32* %arrayidx, align 4 + %tmp13 = load i32, i32* %NumExceptions, align 4 + %inc = add nsw i32 %tmp13, 1 + store i32 %inc, i32* %NumExceptions, align 4 + %tmp14 = load i32, i32* %e, align 4 + %tmp15 = load i32, i32* %i, align 4 + %cmp1 = icmp eq i32 %tmp14, %tmp15 + br i1 %cmp1, label %if.then, label %if.else + +; CHECK-NOT: if.then: + +if.then: ; preds = %catch + %tmp16 = load i32, i32* %e, align 4 + %b = getelementptr inbounds %struct.SomeData, %struct.SomeData* %Data, i32 0, i32 1 + %tmp17 = load i32, i32* %b, align 4 + %add2 = add nsw i32 %tmp17, %tmp16 + store i32 %add2, i32* %b, align 4 + br label %if.end + +; CHECK-NOT: if.else: + +if.else: ; preds = %catch + %tmp18 = load i32, i32* %e, align 4 + %a3 = getelementptr inbounds %struct.SomeData, %struct.SomeData* %Data, i32 0, i32 0 + %tmp19 = load i32, i32* %a3, align 4 + %add4 = add nsw i32 %tmp19, %tmp18 + store i32 %add4, i32* %a3, align 4 + br label %if.end + +; CHECK-NOT: if.end: + +if.end: ; preds = %if.else, %if.then + call void @llvm.eh.endcatch() #1 + br label %try.cont + +try.cont: ; preds = %if.end, %invoke.cont + %tmp20 = load i32, i32* %NumExceptions, align 4 + call void @"\01?does_not_throw@@YAXH@Z"(i32 %tmp20) + br label %for.inc + +for.inc: ; preds = %try.cont + %tmp21 = load i32, i32* %i, align 4 + %inc5 = add nsw i32 %tmp21, 1 + store i32 %inc5, i32* %i, align 4 + br label %for.cond + +for.end: ; preds = %for.cond + %tmp22 = load i32, i32* %NumExceptions, align 4 + %arraydecay = getelementptr inbounds [10 x i32], [10 x i32]* %ExceptionVal, i32 0, i32 0 + call void @"\01?dump@@YAXPEAHHAEAUSomeData@@@Z"(i32* %arraydecay, i32 %tmp22, %struct.SomeData* dereferenceable(8) %Data) + ret void + +; CHECK-NOT: eh.resume: + +eh.resume: ; preds = %catch.dispatch + %exn6 = load i8*, i8** %exn.slot + %sel7 = load i32, i32* %ehselector.slot + %lpad.val = insertvalue { i8*, i32 } undef, i8* %exn6, 0 + %lpad.val8 = insertvalue { i8*, i32 } %lpad.val, i32 %sel7, 1 + resume { i8*, i32 } %lpad.val8 + +; CHECK: } +} + +; The following catch handler should be outlined. +; CHECK-LABEL: define internal i8* @"\01?test@@YAXXZ.catch"(i8*, i8*) { +; CHECK: entry: +; CHECK: [[RECOVER_E:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 0) +; CHECK: [[E_PTR1:\%.+]] = bitcast i8* [[RECOVER_E]] to i32* +; CHECK: [[RECOVER_NUMEXCEPTIONS:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 1) +; CHECK: [[NUMEXCEPTIONS_PTR1:\%.+]] = bitcast i8* [[RECOVER_NUMEXCEPTIONS]] to i32* +; CHECK: [[RECOVER_EXCEPTIONVAL:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 2) +; CHECK: [[EXCEPTIONVAL_PTR1:\%.+]] = bitcast i8* [[RECOVER_EXCEPTIONVAL]] to [10 x i32]* +; CHECK: [[RECOVER_I:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 3) +; CHECK: [[I_PTR1:\%.+]] = bitcast i8* [[RECOVER_I]] to i32* +; CHECK: [[RECOVER_DATA:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 4) +; CHECK: [[DATA_PTR1:\%.+]] = bitcast i8* [[RECOVER_DATA]] to %struct.SomeData* +; CHECK: [[TMP:\%.+]] = load i32, i32* [[E_PTR1]], align 4 +; CHECK: [[TMP1:\%.+]] = load i32, i32* [[NUMEXCEPTIONS_PTR]], align 4 +; CHECK: [[IDXPROM:\%.+]] = sext i32 [[TMP1]] to i64 +; CHECK: [[ARRAYIDX:\%.+]] = getelementptr inbounds [10 x i32], [10 x i32]* [[EXCEPTIONVAL_PTR1]], i32 0, i64 [[IDXPROM]] +; CHECK: store i32 [[TMP]], i32* [[ARRAYIDX]], align 4 +; CHECK: [[TMP2:\%.+]] = load i32, i32* [[NUMEXCEPTIONS_PTR1]], align 4 +; CHECK: [[INC:\%.+]] = add nsw i32 [[TMP2]], 1 +; CHECK: store i32 [[INC]], i32* [[NUMEXCEPTIONS_PTR]], align 4 +; CHECK: [[TMP3:\%.+]] = load i32, i32* [[E_PTR1]], align 4 +; CHECK: [[TMP4:\%.+]] = load i32, i32* [[I_PTR1]], align 4 +; CHECK: [[CMP:\%.+]] = icmp eq i32 [[TMP3]], [[TMP4]] +; CHECK: br i1 [[CMP]], label %if.then, label %if.else +; +; CHECK: if.then: ; preds = %entry +; CHECK: [[TMP5:\%.+]] = load i32, i32* [[E_PTR1]], align 4 +; CHECK: [[B_PTR:\%.+]] = getelementptr inbounds %struct.SomeData, %struct.SomeData* [[DATA_PTR1]], i32 0, i32 1 +; CHECK: [[TMP6:\%.+]] = load i32, i32* [[B_PTR]], align 4 +; CHECK: %add2 = add nsw i32 [[TMP6]], [[TMP5]] +; CHECK: store i32 [[ADD:\%.+]], i32* [[B_PTR]], align 4 +; CHECK: br label %if.end +; +; CHECK: if.else: ; preds = %entry +; CHECK: [[TMP7:\%.+]] = load i32, i32* %e, align 4 +; CHECK: [[A3:\%.+]] = getelementptr inbounds %struct.SomeData, %struct.SomeData* %Data, i32 0, i32 0 +; CHECK: [[TMP8:\%.+]] = load i32, i32* %a3, align 4 +; CHECK: [[ADD1:\%.+]] = add nsw i32 [[TMP8]], [[TMP7]] +; CHECK: store i32 [[ADD1]], i32* [[A3]], align 4 +; CHECK: br label %if.end +; +; CHECK: if.end: ; preds = %if.else, %if.then +; CHECK: ret i8* blockaddress(@"\01?test@@YAXXZ", %try.cont) +; CHECK: } + + +; Function Attrs: nounwind +declare void @llvm.memset(i8* nocapture, i8, i64, i32, i1) #1 + +declare void @"\01?may_throw@@YAXXZ"() #2 + +declare i32 @__CxxFrameHandler3(...) + +; Function Attrs: nounwind readnone +declare i32 @llvm.eh.typeid.for(i8*) #3 + +declare void @llvm.eh.begincatch(i8*, i8*) + +declare void @llvm.eh.endcatch() + +declare void @"\01?does_not_throw@@YAXH@Z"(i32) #2 + +declare void @"\01?dump@@YAXPEAHHAEAUSomeData@@@Z"(i32*, i32, %struct.SomeData* dereferenceable(8)) #2 + +attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } +attributes #1 = { nounwind } +attributes #2 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } +attributes #3 = { nounwind readnone } + +!llvm.module.flags = !{!0} +!llvm.ident = !{!1} + +!0 = !{i32 1, !"PIC Level", i32 2} +!1 = !{!"clang version 3.7.0 (trunk 228868)"} diff --git a/test/CodeGen/WinEH/cppeh-inalloca.ll b/test/CodeGen/WinEH/cppeh-inalloca.ll new file mode 100644 index 0000000..f3f3631 --- /dev/null +++ b/test/CodeGen/WinEH/cppeh-inalloca.ll @@ -0,0 +1,199 @@ +; RUN: opt -mtriple=i386-pc-windows-msvc -winehprepare -S -o - < %s | FileCheck %s + +; This test is built from the following code: +; struct A { +; A(int a); +; A(const A &o); +; ~A(); +; int a; +; }; +; +; void may_throw(); +; +; int test(A a) { +; try { +; may_throw(); +; } +; catch (int e) { +; return a.a + e; +; } +; return 0; +; } +; +; The test was built for a 32-bit Windows target and then the reference to +; the inalloca instruction was manually sunk into the landingpad. + +; ModuleID = 'cppeh-inalloca.cpp' +target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32" +target triple = "i386-pc-windows-msvc" + +%rtti.TypeDescriptor2 = type { i8**, i8*, [3 x i8] } +%struct.A = type { i32 } + +$"\01??_R0H@8" = comdat any + +@"\01??_7type_info@@6B@" = external constant i8* +@"\01??_R0H@8" = linkonce_odr global %rtti.TypeDescriptor2 { i8** @"\01??_7type_info@@6B@", i8* null, [3 x i8] c".H\00" }, comdat + +; The function entry should be rewritten like this. +; CHECK: define i32 @"\01?test@@YAHUA@@@Z"(<{ %struct.A }>* inalloca) #0 { +; CHECK: entry: +; CHECK: [[TMP_REGMEM:\%.+]] = alloca <{ %struct.A }>* +; CHECK: [[TMP:\%.+]] = select i1 true, <{ %struct.A }>* %0, <{ %struct.A }>* undef +; CHECK: store <{ %struct.A }>* [[TMP]], <{ %struct.A }>** [[TMP_REGMEM]] +; CHECK: [[RETVAL:\%.+]] = alloca i32, align 4 +; CHECK: [[E_PTR:\%.+]] = alloca i32, align 4 +; CHECK: [[CLEANUP_SLOT:\%.+]] = alloca i32 +; CHECK: call void (...)* @llvm.frameescape(i32* %e, <{ %struct.A }>** [[TMP_REGMEM]], i32* [[RETVAL]], i32* [[CLEANUP_SLOT]]) +; CHECK: invoke void @"\01?may_throw@@YAXXZ"() +; CHECK: to label %invoke.cont unwind label %[[LPAD_LABEL:lpad[0-9]*]] + +define i32 @"\01?test@@YAHUA@@@Z"(<{ %struct.A }>* inalloca) #0 { +entry: + %retval = alloca i32, align 4 + %exn.slot = alloca i8* + %ehselector.slot = alloca i32 + %e = alloca i32, align 4 + %cleanup.dest.slot = alloca i32 + invoke void @"\01?may_throw@@YAXXZ"() + to label %invoke.cont unwind label %lpad + +invoke.cont: ; preds = %entry + br label %try.cont + +; CHECK: [[LPAD_LABEL]]:{{[ ]+}}; preds = %entry +; CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) +; CHECK-NEXT: cleanup +; CHECK-NEXT: catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) +; CHECK-NEXT: [[RECOVER:\%recover.*]] = call i8* (...)* @llvm.eh.actions(i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*), i32* %e, i8* (i8*, i8*)* @"\01?test@@YAHUA@@@Z.catch", i32 0, void (i8*, i8*)* @"\01?test@@YAHUA@@@Z.cleanup") +; CHECK-NEXT: indirectbr i8* [[RECOVER]], [label %cleanup] + +lpad: ; preds = %entry + %1 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) + cleanup + catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) + %2 = extractvalue { i8*, i32 } %1, 0 + store i8* %2, i8** %exn.slot + %3 = extractvalue { i8*, i32 } %1, 1 + store i32 %3, i32* %ehselector.slot + br label %catch.dispatch + +; CHECK-NOT: catch.dispatch: + +catch.dispatch: ; preds = %lpad + %sel = load i32, i32* %ehselector.slot + %4 = call i32 @llvm.eh.typeid.for(i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*)) #3 + %matches = icmp eq i32 %sel, %4 + br i1 %matches, label %catch, label %ehcleanup + +; CHECK-NOT: catch: + +catch: ; preds = %catch.dispatch + %exn = load i8*, i8** %exn.slot + %e.i8 = bitcast i32* %e to i8* + call void @llvm.eh.begincatch(i8* %exn, i8* %e.i8) #3 + %a = getelementptr inbounds <{ %struct.A }>, <{ %struct.A }>* %0, i32 0, i32 0 + %a1 = getelementptr inbounds %struct.A, %struct.A* %a, i32 0, i32 0 + %tmp8 = load i32, i32* %a1, align 4 + %tmp9 = load i32, i32* %e, align 4 + %add = add nsw i32 %tmp8, %tmp9 + store i32 %add, i32* %retval + store i32 1, i32* %cleanup.dest.slot + call void @llvm.eh.endcatch() #3 + br label %cleanup + +try.cont: ; preds = %invoke.cont + store i32 0, i32* %retval + store i32 1, i32* %cleanup.dest.slot + br label %cleanup + +; The cleanup block should be re-written like this. +; CHECK: cleanup:{{[ ]+}}; preds = %[[LPAD_LABEL]], %try.cont +; CHECK-NOT: %a2 = getelementptr inbounds <{ %struct.A }>, <{ %struct.A }>* %0, i32 0, i32 0 +; CHECK: [[TMP_RELOAD:\%.+]] = load volatile <{ %struct.A }>*, <{ %struct.A }>** [[TMP_REGMEM]] +; CHECK: [[A2:\%.+]] = getelementptr inbounds <{ %struct.A }>, <{ %struct.A }>* [[TMP_RELOAD]], i32 0, i32 0 +; CHECK: call x86_thiscallcc void @"\01??1A@@QAE@XZ"(%struct.A* [[A2]]) +; CHECK: [[TMP1:\%.+]] = load i32, i32* [[RETVAL]] +; CHECK: ret i32 [[TMP1]] + +cleanup: ; preds = %try.cont, %catch + %a2 = getelementptr inbounds <{ %struct.A }>, <{ %struct.A }>* %0, i32 0, i32 0 + call x86_thiscallcc void @"\01??1A@@QAE@XZ"(%struct.A* %a2) #3 + %tmp10 = load i32, i32* %retval + ret i32 %tmp10 + +; CHECK-NOT: ehcleanup: + +ehcleanup: ; preds = %catch.dispatch + %a3 = getelementptr inbounds <{ %struct.A }>, <{ %struct.A }>* %0, i32 0, i32 0 + call x86_thiscallcc void @"\01??1A@@QAE@XZ"(%struct.A* %a3) #3 + br label %eh.resume + +; CHECK-NOT: eh.resume: + +eh.resume: ; preds = %ehcleanup + %exn2 = load i8*, i8** %exn.slot + %sel3 = load i32, i32* %ehselector.slot + %lpad.val = insertvalue { i8*, i32 } undef, i8* %exn2, 0 + %lpad.val4 = insertvalue { i8*, i32 } %lpad.val, i32 %sel3, 1 + resume { i8*, i32 } %lpad.val4 + +; CHECK: } +} + +; The following catch handler should be outlined. +; CHECK: define internal i8* @"\01?test@@YAHUA@@@Z.catch"(i8*, i8*) { +; CHECK: entry: +; CHECK: [[RECOVER_E:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (i32 (<{ %struct.A }>*)* @"\01?test@@YAHUA@@@Z" to i8*), i8* %1, i32 0) +; CHECK: [[E_PTR:\%.+]] = bitcast i8* [[RECOVER_E]] to i32* +; CHECK: [[RECOVER_EH_TEMP:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (i32 (<{ %struct.A }>*)* @"\01?test@@YAHUA@@@Z" to i8*), i8* %1, i32 1) +; CHECK: [[EH_TEMP:\%.+]] = bitcast i8* [[RECOVER_EH_TEMP]] to <{ %struct.A }>** +; CHECK: [[TMP_RELOAD:\%.+]] = load <{ %struct.A }>*, <{ %struct.A }>** [[EH_TEMP]] +; CHECK: [[RECOVER_RETVAL:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (i32 (<{ %struct.A }>*)* @"\01?test@@YAHUA@@@Z" to i8*), i8* %1, i32 2) +; CHECK: [[RETVAL1:\%.+]] = bitcast i8* [[RECOVER_RETVAL]] to i32* +; CHECK: [[RECOVER_CLEANUPSLOT:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (i32 (<{ %struct.A }>*)* @"\01?test@@YAHUA@@@Z" to i8*), i8* %1, i32 3) +; CHECK: [[CLEANUPSLOT1:\%.+]] = bitcast i8* [[RECOVER_CLEANUPSLOT]] to i32* +; CHECK: [[E_I8PTR:\%.+]] = bitcast i32* [[E_PTR]] to i8* +; CHECK: [[RECOVER_A:\%.+]] = getelementptr inbounds <{ %struct.A }>, <{ %struct.A }>* [[TMP_RELOAD]], i32 0, i32 0 +; CHECK: [[A1:\%.+]] = getelementptr inbounds %struct.A, %struct.A* [[RECOVER_A]], i32 0, i32 0 +; CHECK: [[TMP2:\%.+]] = load i32, i32* [[A1]], align 4 +; CHECK: [[TMP3:\%.+]] = load i32, i32* [[E_PTR]], align 4 +; CHECK: [[ADD:\%.+]] = add nsw i32 [[TMP2]], [[TMP3]] +; CHECK: store i32 [[ADD]], i32* [[RETVAL1]] +; CHECK: store i32 1, i32* [[CLEANUPSLOT1]] +; CHECK: ret i8* blockaddress(@"\01?test@@YAHUA@@@Z", %cleanup) +; CHECK: } + +; The following cleanup handler should be outlined. +; CHECK: define internal void @"\01?test@@YAHUA@@@Z.cleanup"(i8*, i8*) { +; CHECK: entry: +; CHECK: [[RECOVER_EH_TEMP1:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (i32 (<{ %struct.A }>*)* @"\01?test@@YAHUA@@@Z" to i8*), i8* %1, i32 1) +; CHECK: [[EH_TEMP1:\%.+]] = bitcast i8* [[RECOVER_EH_TEMP]] to <{ %struct.A }>** +; CHECK: [[TMP_RELOAD1:\%.+]] = load <{ %struct.A }>*, <{ %struct.A }>** [[EH_TEMP1]] +; CHECK: [[A3:\%.+]] = getelementptr inbounds <{ %struct.A }>, <{ %struct.A }>* [[TMP_RELOAD1]], i32 0, i32 0 +; CHECK: call x86_thiscallcc void @"\01??1A@@QAE@XZ"(%struct.A* [[A3]]) +; CHECK: ret void +; CHECK: } + +declare void @"\01?may_throw@@YAXXZ"() #0 + +declare i32 @__CxxFrameHandler3(...) + +; Function Attrs: nounwind readnone +declare i32 @llvm.eh.typeid.for(i8*) #1 + +declare void @llvm.eh.begincatch(i8*, i8*) + +declare void @llvm.eh.endcatch() + +; Function Attrs: nounwind +declare x86_thiscallcc void @"\01??1A@@QAE@XZ"(%struct.A*) #2 + +attributes #0 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } +attributes #1 = { nounwind readnone } +attributes #2 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } +attributes #3 = { nounwind } + +!llvm.ident = !{!0} + +!0 = !{!"clang version 3.7.0 (trunk 228868)"} diff --git a/test/CodeGen/WinEH/cppeh-min-unwind.ll b/test/CodeGen/WinEH/cppeh-min-unwind.ll new file mode 100644 index 0000000..a1e97d5 --- /dev/null +++ b/test/CodeGen/WinEH/cppeh-min-unwind.ll @@ -0,0 +1,99 @@ +; RUN: opt -mtriple=x86_64-pc-windows-msvc -winehprepare -S -o - < %s | FileCheck %s + +; This test was generated from the following source: +; +; class SomeClass { +; public: +; SomeClass(); +; ~SomeClass(); +; }; +; +; void test() { +; SomeClass obj; +; may_throw(); +; } + + +; ModuleID = 'min-unwind.cpp' +target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" +target triple = "x86_64-pc-windows-msvc" + +%class.SomeClass = type { [28 x i32] } + +; The function entry should be rewritten like this. +; CHECK: define void @_Z4testv() #0 { +; CHECK: entry: +; CHECK: [[OBJ_PTR:\%.+]] = alloca %class.SomeClass, align 4 +; CHECK: call void @_ZN9SomeClassC1Ev(%class.SomeClass* [[OBJ_PTR]]) +; CHECK: call void (...)* @llvm.frameescape(%class.SomeClass* [[OBJ_PTR]]) +; CHECK: invoke void @_Z9may_throwv() +; CHECK: to label %invoke.cont unwind label %[[LPAD_LABEL:lpad[0-9]+]] + +; Function Attrs: uwtable +define void @_Z4testv() #0 { +entry: + %obj = alloca %class.SomeClass, align 4 + %exn.slot = alloca i8* + %ehselector.slot = alloca i32 + call void @_ZN9SomeClassC1Ev(%class.SomeClass* %obj) + invoke void @_Z9may_throwv() + to label %invoke.cont unwind label %lpad + +invoke.cont: ; preds = %entry + call void @_ZN9SomeClassD1Ev(%class.SomeClass* %obj) + ret void + +; CHECK: [[LPAD_LABEL]]:{{[ ]+}}; preds = %entry +; CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) +; CHECK-NEXT: cleanup +; CHECK-NEXT: [[RECOVER:\%.+]] = call i8* (...)* @llvm.eh.actions(i32 0, void (i8*, i8*)* @_Z4testv.cleanup) +; CHECK-NEXT: indirectbr i8* [[RECOVER]], [] + +lpad: ; preds = %entry + %tmp = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) + cleanup + %tmp1 = extractvalue { i8*, i32 } %tmp, 0 + store i8* %tmp1, i8** %exn.slot + %tmp2 = extractvalue { i8*, i32 } %tmp, 1 + store i32 %tmp2, i32* %ehselector.slot + call void @_ZN9SomeClassD1Ev(%class.SomeClass* %obj) + br label %eh.resume + +; CHECK-NOT: eh.resume: + +eh.resume: ; preds = %lpad + %exn = load i8*, i8** %exn.slot + %sel = load i32, i32* %ehselector.slot + %lpad.val = insertvalue { i8*, i32 } undef, i8* %exn, 0 + %lpad.val2 = insertvalue { i8*, i32 } %lpad.val, i32 %sel, 1 + resume { i8*, i32 } %lpad.val2 + +; CHECK: } +} + +; This cleanup handler should be outlined. +; CHECK: define internal void @_Z4testv.cleanup(i8*, i8*) { +; CHECK: entry: +; CHECK: [[RECOVER_OBJ:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @_Z4testv to i8*), i8* %1, i32 0) +; CHECK: [[OBJ_PTR1:\%.+]] = bitcast i8* [[RECOVER_OBJ]] to %class.SomeClass* +; CHECK: call void @_ZN9SomeClassD1Ev(%class.SomeClass* [[OBJ_PTR1]]) +; CHECK: ret void +; CHECK: } + +declare void @_ZN9SomeClassC1Ev(%class.SomeClass*) #1 + +declare void @_Z9may_throwv() #1 + +declare i32 @__CxxFrameHandler3(...) + +declare void @_ZN9SomeClassD1Ev(%class.SomeClass*) #1 + +attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } +attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } +attributes #2 = { noinline noreturn nounwind } +attributes #3 = { noreturn nounwind } +attributes #4 = { nounwind } + +!llvm.ident = !{!0} + +!0 = !{!"clang version 3.7.0 (trunk 226027)"} diff --git a/test/CodeGen/WinEH/cppeh-nested-1.ll b/test/CodeGen/WinEH/cppeh-nested-1.ll new file mode 100644 index 0000000..e94e771 --- /dev/null +++ b/test/CodeGen/WinEH/cppeh-nested-1.ll @@ -0,0 +1,199 @@ +; RUN: opt -mtriple=x86_64-pc-windows-msvc -winehprepare -S -o - < %s | FileCheck %s +; XFAIL: * + +; This test is based on the following code: +; +;void test() +;{ +; try { +; try { +; may_throw(); +; } catch (int i) { +; handle_int(i); +; } +; } catch (float f) { +; handle_float(f); +; } +; done(); +;} + +; ModuleID = 'cppeh-nested-1.cpp' +target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" +target triple = "x86_64-pc-windows-msvc" + +%rtti.TypeDescriptor2 = type { i8**, i8*, [3 x i8] } + +$"\01??_R0M@8" = comdat any + +$"\01??_R0H@8" = comdat any + +@"\01??_7type_info@@6B@" = external constant i8* +@"\01??_R0M@8" = linkonce_odr global %rtti.TypeDescriptor2 { i8** @"\01??_7type_info@@6B@", i8* null, [3 x i8] c".M\00" }, comdat +@"\01??_R0H@8" = linkonce_odr global %rtti.TypeDescriptor2 { i8** @"\01??_7type_info@@6B@", i8* null, [3 x i8] c".H\00" }, comdat + +; CHECK: define void @"\01?test@@YAXXZ"() #0 { +; CHECK: entry: +; CHECK: %i = alloca i32, align 4 +; CHECK: %f = alloca float, align 4 +; CHECK: call void (...)* @llvm.frameescape(i32* %i, float* %f) +; CHECK: invoke void @"\01?may_throw@@YAXXZ"() +; CHECK: to label %invoke.cont unwind label %[[LPAD_LABEL:lpad[0-9]*]] + +; Function Attrs: uwtable +define void @"\01?test@@YAXXZ"() #0 { +entry: + %exn.slot = alloca i8* + %ehselector.slot = alloca i32 + %i = alloca i32, align 4 + %f = alloca float, align 4 + invoke void @"\01?may_throw@@YAXXZ"() + to label %invoke.cont unwind label %lpad + +invoke.cont: ; preds = %entry + br label %try.cont + +; CHECK: [[LPAD_LABEL]]: +; CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) +; CHECK: catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) +; CHECK: catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0M@8" to i8*) +; CHECK: [[RECOVER:\%.+]] = call i8* (...)* @llvm.eh.actions(i32 0, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*), i32* %i, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch" to i8*), i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0M@8" to i8*), float* %f, i8* bitcast (i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch1") +; CHECK: indirectbr i8* [[RECOVER]], [label %try.cont, label %try.cont10] + +lpad: ; preds = %entry + %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) + catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) + catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0M@8" to i8*) + %1 = extractvalue { i8*, i32 } %0, 0 + store i8* %1, i8** %exn.slot + %2 = extractvalue { i8*, i32 } %0, 1 + store i32 %2, i32* %ehselector.slot + br label %catch.dispatch + +; CHECK-NOT: catch.dispatch: +catch.dispatch: ; preds = %lpad + %sel = load i32, i32* %ehselector.slot + %3 = call i32 @llvm.eh.typeid.for(i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*)) #3 + %matches = icmp eq i32 %sel, %3 + br i1 %matches, label %catch, label %catch.dispatch3 + +; CHECK-NOT: catch: +catch: ; preds = %catch.dispatch + %exn = load i8*, i8** %exn.slot + %4 = bitcast i32* %i to i8* + call void @llvm.eh.begincatch(i8* %exn, i8* %4) #3 + %5 = load i32, i32* %i, align 4 + invoke void @"\01?handle_int@@YAXH@Z"(i32 %5) + to label %invoke.cont2 unwind label %lpad1 + +; CHECK-NOT: invoke.cont2: +invoke.cont2: ; preds = %catch + call void @llvm.eh.endcatch() #3 + br label %try.cont + +try.cont: ; preds = %invoke.cont2, %invoke.cont + br label %try.cont10 + +; CHECK-NOT: lpad1: +lpad1: ; preds = %catch + %6 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) + catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0M@8" to i8*) + %7 = extractvalue { i8*, i32 } %6, 0 + store i8* %7, i8** %exn.slot + %8 = extractvalue { i8*, i32 } %6, 1 + store i32 %8, i32* %ehselector.slot + call void @llvm.eh.endcatch() #3 + br label %catch.dispatch3 + +; CHECK-NOT: catch.dispatch3: +catch.dispatch3: ; preds = %lpad1, %catch.dispatch + %sel4 = load i32, i32* %ehselector.slot + %9 = call i32 @llvm.eh.typeid.for(i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0M@8" to i8*)) #3 + %matches5 = icmp eq i32 %sel4, %9 + br i1 %matches5, label %catch6, label %eh.resume + +; CHECK-NOT: catch6: +catch6: ; preds = %catch.dispatch3 + %exn7 = load i8*, i8** %exn.slot + %10 = bitcast float* %f to i8* + call void @llvm.eh.begincatch(i8* %exn7, i8* %10) #3 + %11 = load float, float* %f, align 4 + call void @"\01?handle_float@@YAXM@Z"(float %11) + call void @llvm.eh.endcatch() #3 + br label %try.cont10 + +try.cont10: ; preds = %catch6, %try.cont + call void @"\01?done@@YAXXZ"() + ret void + +; CHECK-NOT: eh.resume: +eh.resume: ; %catch.dispatch3 + %exn11 = load i8*, i8** %exn.slot + %sel12 = load i32, i32* %ehselector.slot + %lpad.val = insertvalue { i8*, i32 } undef, i8* %exn11, 0 + %lpad.val13 = insertvalue { i8*, i32 } %lpad.val, i32 %sel12, 1 + resume { i8*, i32 } %lpad.val13 +; CHECK: } +} + +; CHECK: define internal i8* @"\01?test@@YAXXZ.catch"(i8*, i8*) { +; CHECK: entry: +; CHECK: [[RECOVER_I:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 0) +; CHECK: [[I_PTR:\%.+]] = bitcast i8* [[RECOVER_I]] to i32* +; ------------================= FAIL here =================------------ +; CHECK: [[RECOVER_F:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 1) +; CHECK: [[F_PTR:\%.+]] = bitcast i8* [[RECOVER_F]] to float* +; CHECK: [[TMP1:\%.+]] = load i32, i32* [[I_PTR]], align 4 +; CHECK: invoke void @"\01?handle_int@@YAXH@Z"(i32 [[TMP1]]) +; CHECK: to label %invoke.cont2 unwind label %[[LPAD1_LABEL:lpad[0-9]*]] +; +; CHECK: invoke.cont2: +; CHECK: ret i8* blockaddress(@"\01?test@@YAXXZ", %try.cont) +; +; CHECK: [[LPAD1_LABEL]]:{{[ ]+}}; preds = %entry +; CHECK: [[LPAD1_VAL:\%.+]] = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) +; CHECK: catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0M@8" to i8*) +; ------------================= FAIL here =================------------ +; CHECK: [[RECOVER1:\%.+]] = call i8* (...)* @llvm.eh.actions({ i8*, i32 } [[LPAD1_VAL]], i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0M@8" to i8*), float* [[F_PTR]], i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch1") +; CHECK: indirectbr i8* [[RECOVER1]], [] +; +; CHECK: } + +; CHECK: define internal i8* @"\01?test@@YAXXZ.catch1"(i8*, i8*) { +; CHECK: entry: +; CHECK: [[RECOVER_F1:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 1) +; CHECK: [[F_PTR1:\%.+]] = bitcast i8* [[RECOVER_F1]] to float* +; CHECK: [[TMP2:\%.+]] = load float, float* [[F_PTR1]], align 4 +; CHECK: call void @"\01?handle_float@@YAXM@Z"(float [[TMP2]]) +; CHECK: ret i8* blockaddress(@"\01?test@@YAXXZ", %try.cont10) +; CHECK: } + + +declare void @"\01?may_throw@@YAXXZ"() #1 + +declare i32 @__CxxFrameHandler3(...) + +; Function Attrs: nounwind readnone +declare i32 @llvm.eh.typeid.for(i8*) #2 + +; Function Attrs: nounwind +declare void @llvm.eh.begincatch(i8* nocapture, i8* nocapture) #3 + +declare void @"\01?handle_int@@YAXH@Z"(i32) #1 + +; Function Attrs: nounwind +declare void @llvm.eh.endcatch() #3 + +declare void @"\01?handle_float@@YAXM@Z"(float) #1 + +declare void @"\01?done@@YAXXZ"() #1 + +attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } +attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } +attributes #2 = { nounwind readnone } +attributes #3 = { nounwind } + +!llvm.module.flags = !{!0} +!llvm.ident = !{!1} + +!0 = !{i32 1, !"PIC Level", i32 2} +!1 = !{!"clang version 3.7.0 (trunk 232069) (llvm/trunk 232070)"} diff --git a/test/CodeGen/WinEH/cppeh-nested-2.ll b/test/CodeGen/WinEH/cppeh-nested-2.ll new file mode 100644 index 0000000..3479c41 --- /dev/null +++ b/test/CodeGen/WinEH/cppeh-nested-2.ll @@ -0,0 +1,324 @@ +; RUN: opt -mtriple=x86_64-pc-windows-msvc -winehprepare -S -o - < %s | FileCheck %s + +; This test is based on the following code: +; +; class Inner { +; public: +; Inner(); +; ~Inner(); +; }; +; class Outer { +; public: +; Outer(); +; ~Outer(); +; }; +; void test() { +; try { +; Outer outer; +; try { +; Inner inner; +; may_throw(); +; } catch (int i) { +; handle_int(i); +; } +; } catch (float f) { +; handle_float(f); +; } +; done(); +; } + +; ModuleID = 'nested-2.cpp' +target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" +target triple = "x86_64-pc-windows-msvc" + +%class.Outer = type { i8 } +%class.Inner = type { i8 } + +@_ZTIf = external constant i8* +@_ZTIi = external constant i8* + +; The function entry should be rewritten like this. +; CHECK: define void @_Z4testv() #0 { +; CHECK: entry: +; CHECK: %outer = alloca %class.Outer, align 1 +; CHECK: %inner = alloca %class.Inner, align 1 +; CHECK: %i = alloca i32, align 4 +; CHECK: %f = alloca float, align 4 +; CHECK: call void (...)* @llvm.frameescape(float* %f, i32* %i, %class.Outer* %outer, %class.Inner* %inner) +; CHECK: invoke void @_ZN5OuterC1Ev(%class.Outer* %outer) +; CHECK: to label %invoke.cont unwind label %[[LPAD_LABEL:lpad[0-9]*]] + +; Function Attrs: uwtable +define void @_Z4testv() #0 { +entry: + %outer = alloca %class.Outer, align 1 + %exn.slot = alloca i8* + %ehselector.slot = alloca i32 + %inner = alloca %class.Inner, align 1 + %i = alloca i32, align 4 + %f = alloca float, align 4 + invoke void @_ZN5OuterC1Ev(%class.Outer* %outer) + to label %invoke.cont unwind label %lpad + +; CHECK: invoke.cont: +; CHECK: invoke void @_ZN5InnerC1Ev(%class.Inner* %inner) +; CHECK: to label %invoke.cont2 unwind label %[[LPAD1_LABEL:lpad[0-9]*]] + +invoke.cont: ; preds = %entry + invoke void @_ZN5InnerC1Ev(%class.Inner* %inner) + to label %invoke.cont2 unwind label %lpad1 + +; CHECK: invoke.cont2: +; CHECK: invoke void @_Z9may_throwv() +; CHECK: to label %invoke.cont4 unwind label %[[LPAD3_LABEL:lpad[0-9]*]] + +invoke.cont2: ; preds = %invoke.cont + invoke void @_Z9may_throwv() + to label %invoke.cont4 unwind label %lpad3 + +; CHECK: invoke.cont4: +; CHECK: invoke void @_ZN5InnerD1Ev(%class.Inner* %inner) +; CHECK: to label %invoke.cont5 unwind label %[[LPAD1_LABEL]] + +invoke.cont4: ; preds = %invoke.cont2 + invoke void @_ZN5InnerD1Ev(%class.Inner* %inner) + to label %invoke.cont5 unwind label %lpad1 + +; CHECK: invoke.cont5: +; CHECK: br label %try.cont + +invoke.cont5: ; preds = %invoke.cont4 + br label %try.cont + +; CHECK: [[LPAD_LABEL]]: +; CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) +; CHECK-NEXT: catch i8* bitcast (i8** @_ZTIf to i8*) +; CHECK-NEXT: [[RECOVER:\%.+]] = call i8* (...)* @llvm.eh.actions(i32 1, i8* bitcast (i8** @_ZTIf to i8*), float* %f, i8* (i8*, i8*)* @_Z4testv.catch) +; CHECK-NEXT: indirectbr i8* [[RECOVER]], [label %try.cont19] + +lpad: ; preds = %try.cont, %entry + %tmp = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) + catch i8* bitcast (i8** @_ZTIf to i8*) + %tmp1 = extractvalue { i8*, i32 } %tmp, 0 + store i8* %tmp1, i8** %exn.slot + %tmp2 = extractvalue { i8*, i32 } %tmp, 1 + store i32 %tmp2, i32* %ehselector.slot + br label %catch.dispatch11 + +; CHECK: [[LPAD1_LABEL]]: +; CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) +; CHECK-NEXT: cleanup +; CHECK-NEXT: catch i8* bitcast (i8** @_ZTIi to i8*) +; CHECK-NEXT: catch i8* bitcast (i8** @_ZTIf to i8*) +; CHECK-NEXT: [[RECOVER1:\%.+]] = call i8* (...)* @llvm.eh.actions( +; CHECK-SAME: i32 1, i8* bitcast (i8** @_ZTIi to i8*), i32* %i, i8* (i8*, i8*)* @_Z4testv.catch1, +; CHECK-SAME: i32 0, void (i8*, i8*)* @_Z4testv.cleanup, +; CHECK-SAME: i32 1, i8* bitcast (i8** @_ZTIf to i8*), float* %f, i8* (i8*, i8*)* @_Z4testv.catch) +; CHECK-NEXT: indirectbr i8* [[RECOVER1]], [label %try.cont, label %try.cont19] + +lpad1: ; preds = %invoke.cont4, %invoke.cont + %tmp3 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) + cleanup + catch i8* bitcast (i8** @_ZTIi to i8*) + catch i8* bitcast (i8** @_ZTIf to i8*) + %tmp4 = extractvalue { i8*, i32 } %tmp3, 0 + store i8* %tmp4, i8** %exn.slot + %tmp5 = extractvalue { i8*, i32 } %tmp3, 1 + store i32 %tmp5, i32* %ehselector.slot + br label %catch.dispatch + +; CHECK: [[LPAD3_LABEL]]: +; CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) +; CHECK-NEXT: cleanup +; CHECK-NEXT: catch i8* bitcast (i8** @_ZTIi to i8*) +; CHECK-NEXT: catch i8* bitcast (i8** @_ZTIf to i8*) +; CHECK-NEXT: [[RECOVER3:\%.+]] = call i8* (...)* @llvm.eh.actions( +; CHECK-SAME: i32 0, void (i8*, i8*)* @_Z4testv.cleanup2, +; CHECK-SAME: i32 1, i8* bitcast (i8** @_ZTIi to i8*), i32* %i, i8* (i8*, i8*)* @_Z4testv.catch1, +; CHECK-SAME: i32 0, void (i8*, i8*)* @_Z4testv.cleanup, +; CHECK-SAME: i32 1, i8* bitcast (i8** @_ZTIf to i8*), float* %f, i8* (i8*, i8*)* @_Z4testv.catch) +; CHECK-NEXT: indirectbr i8* [[RECOVER3]], [label %try.cont, label %try.cont19] + +lpad3: ; preds = %invoke.cont2 + %tmp6 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) + cleanup + catch i8* bitcast (i8** @_ZTIi to i8*) + catch i8* bitcast (i8** @_ZTIf to i8*) + %tmp7 = extractvalue { i8*, i32 } %tmp6, 0 + store i8* %tmp7, i8** %exn.slot + %tmp8 = extractvalue { i8*, i32 } %tmp6, 1 + store i32 %tmp8, i32* %ehselector.slot + call void @_ZN5InnerD1Ev(%class.Inner* %inner) + br label %catch.dispatch + +; CHECK-NOT: catch.dispatch: + +catch.dispatch: ; preds = %lpad3, %lpad1 + %sel = load i32, i32* %ehselector.slot + %tmp9 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*)) #4 + %matches = icmp eq i32 %sel, %tmp9 + br i1 %matches, label %catch, label %ehcleanup + +; CHECK-NOT: catch: + +catch: ; preds = %catch.dispatch + %exn = load i8*, i8** %exn.slot + %i.i8 = bitcast i32* %i to i8* + call void @llvm.eh.begincatch(i8* %exn, i8* %i.i8) #4 + %tmp13 = load i32, i32* %i, align 4 + invoke void @_Z10handle_inti(i32 %tmp13) + to label %invoke.cont8 unwind label %lpad7 + +; CHECK-NOT: invoke.cont8: + +invoke.cont8: ; preds = %catch + call void @llvm.eh.endcatch() #4 + br label %try.cont + +; CHECK: try.cont: +; CHECK: invoke void @_ZN5OuterD1Ev(%class.Outer* %outer) +; CHECK: to label %invoke.cont9 unwind label %[[LPAD_LABEL]] + +try.cont: ; preds = %invoke.cont8, %invoke.cont5 + invoke void @_ZN5OuterD1Ev(%class.Outer* %outer) + to label %invoke.cont9 unwind label %lpad + +invoke.cont9: ; preds = %try.cont + br label %try.cont19 + +; CHECK-NOT: lpad7: + +lpad7: ; preds = %catch + %tmp14 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) + cleanup + catch i8* bitcast (i8** @_ZTIf to i8*) + %tmp15 = extractvalue { i8*, i32 } %tmp14, 0 + store i8* %tmp15, i8** %exn.slot + %tmp16 = extractvalue { i8*, i32 } %tmp14, 1 + store i32 %tmp16, i32* %ehselector.slot + call void @llvm.eh.endcatch() #4 + br label %ehcleanup + +; CHECK-NOT: ehcleanup: ; preds = %lpad7, %catch.dispatch + +ehcleanup: ; preds = %lpad7, %catch.dispatch + call void @_ZN5OuterD1Ev(%class.Outer* %outer) + br label %catch.dispatch11 + +; CHECK-NOT: catch.dispatch11: + +catch.dispatch11: ; preds = %ehcleanup, %lpad + %sel12 = load i32, i32* %ehselector.slot + %tmp17 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIf to i8*)) #4 + %matches13 = icmp eq i32 %sel12, %tmp17 + br i1 %matches13, label %catch14, label %eh.resume + +; CHECK-NOT: catch14: + +catch14: ; preds = %catch.dispatch11 + %exn15 = load i8*, i8** %exn.slot + %f.i8 = bitcast float* %f to i8* + call void @llvm.eh.begincatch(i8* %exn15, i8* %f.i8) #4 + %tmp21 = load float, float* %f, align 4 + call void @_Z12handle_floatf(float %tmp21) + call void @llvm.eh.endcatch() #4 + br label %try.cont19 + +try.cont19: ; preds = %catch14, %invoke.cont9 + call void @_Z4donev() + ret void + +; CHECK-NOT: eh.resume: + +eh.resume: ; preds = %catch.dispatch11 + %exn20 = load i8*, i8** %exn.slot + %sel21 = load i32, i32* %ehselector.slot + %lpad.val = insertvalue { i8*, i32 } undef, i8* %exn20, 0 + %lpad.val22 = insertvalue { i8*, i32 } %lpad.val, i32 %sel21, 1 + resume { i8*, i32 } %lpad.val22 + +; CHECK: } +} + +; This catch handler should be outlined. +; CHECK: define internal i8* @_Z4testv.catch(i8*, i8*) { +; CHECK: entry: +; CHECK: [[RECOVER_F:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @_Z4testv to i8*), i8* %1, i32 0) +; CHECK: [[F_PTR:\%.+]] = bitcast i8* [[RECOVER_F]] to float* +; CHECK: [[TMP:\%.+]] = load float, float* [[F_PTR]], align 4 +; CHECK: call void @_Z12handle_floatf(float [[TMP]]) +; CHECK: ret i8* blockaddress(@_Z4testv, %try.cont19) +; CHECK: } + +; This catch handler should be outlined. +; CHECK: define internal i8* @_Z4testv.catch1(i8*, i8*) { +; CHECK: entry: +; CHECK: [[RECOVER_I:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @_Z4testv to i8*), i8* %1, i32 1) +; CHECK: [[I_PTR:\%.+]] = bitcast i8* [[RECOVER_I]] to i32* +; CHECK: [[TMP1:\%.+]] = load i32, i32* [[I_PTR]], align 4 +; CHECK: invoke void @_Z10handle_inti(i32 [[TMP1]]) +; CHECK: to label %invoke.cont8 unwind label %[[LPAD7_LABEL:lpad[0-9]*]] +; +; CHECK: invoke.cont8: ; preds = %entry +; CHECK: ret i8* blockaddress(@_Z4testv, %try.cont) +; +; CHECK: [[LPAD7_LABEL]]:{{[ ]+}}; preds = %entry +; CHECK: [[LPAD7_VAL:\%.+]] = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) +; (FIXME) The nested handler body isn't being populated yet. +; CHECK: } + +; This cleanup handler should be outlined. +; CHECK: define internal void @_Z4testv.cleanup(i8*, i8*) { +; CHECK: entry: +; CHECK: [[RECOVER_OUTER:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @_Z4testv to i8*), i8* %1, i32 2) +; CHECK: [[OUTER_PTR:\%.+]] = bitcast i8* [[RECOVER_OUTER]] to %class.Outer* +; CHECK: call void @_ZN5OuterD1Ev(%class.Outer* [[OUTER_PTR]]) +; CHECK: ret void +; CHECK: } + +; This cleanup handler should be outlined. +; CHECK: define internal void @_Z4testv.cleanup2(i8*, i8*) { +; CHECK: entry: +; CHECK: [[RECOVER_INNER:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @_Z4testv to i8*), i8* %1, i32 3) +; CHECK: [[INNER_PTR:\%.+]] = bitcast i8* [[RECOVER_INNER]] to %class.Inner* +; CHECK: call void @_ZN5InnerD1Ev(%class.Inner* [[INNER_PTR]]) +; CHECK: ret void +; CHECK: } + + + +declare void @_ZN5OuterC1Ev(%class.Outer*) #1 + +declare i32 @__CxxFrameHandler3(...) + +declare void @_ZN5InnerC1Ev(%class.Inner*) #1 + +declare void @_Z9may_throwv() #1 + +declare void @_ZN5InnerD1Ev(%class.Inner*) #1 + +declare void @llvm.eh.begincatch(i8*, i8*) + +; Function Attrs: nounwind readnone +declare i32 @llvm.eh.typeid.for(i8*) #3 + +declare void @_Z10handle_inti(i32) #1 + +declare void @llvm.eh.endcatch() + +declare void @_ZN5OuterD1Ev(%class.Outer*) #1 + +declare void @_Z12handle_floatf(float) #1 + +declare void @_Z4donev() #1 + +attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } +attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } +attributes #2 = { noinline noreturn nounwind } +attributes #3 = { nounwind readnone } +attributes #4 = { nounwind } +attributes #5 = { noreturn nounwind } + +!llvm.ident = !{!0} + +!0 = !{!"clang version 3.7.0 (trunk 226027)"} diff --git a/test/CodeGen/WinEH/cppeh-nested-3.ll b/test/CodeGen/WinEH/cppeh-nested-3.ll new file mode 100644 index 0000000..d28fa4d --- /dev/null +++ b/test/CodeGen/WinEH/cppeh-nested-3.ll @@ -0,0 +1,273 @@ +; RUN: opt -mtriple=x86_64-pc-windows-msvc -winehprepare -S -o - < %s | FileCheck %s +; XFAIL: * + +; This test is based on the following code: +; +;void test() +;{ +; try { +; try { +; may_throw(); +; } catch (int i) { +; try { +; may_throw(); +; } +; catch (int j) { +; i = j; +; } +; handle_int(i); +; } +; } catch (float f) { +; handle_float(f); +; } +; done(); +;} + +; ModuleID = 'cppeh-nested-3.cpp' +target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" +target triple = "x86_64-pc-windows-msvc" + +%rtti.TypeDescriptor2 = type { i8**, i8*, [3 x i8] } + +$"\01??_R0M@8" = comdat any + +$"\01??_R0H@8" = comdat any + +@"\01??_7type_info@@6B@" = external constant i8* +@"\01??_R0M@8" = linkonce_odr global %rtti.TypeDescriptor2 { i8** @"\01??_7type_info@@6B@", i8* null, [3 x i8] c".M\00" }, comdat +@"\01??_R0H@8" = linkonce_odr global %rtti.TypeDescriptor2 { i8** @"\01??_7type_info@@6B@", i8* null, [3 x i8] c".H\00" }, comdat + +; CHECK: define void @"\01?test@@YAXXZ"() #0 { +; CHECK: entry: +; CHECK: %i = alloca i32, align 4 +; ------------================= FAIL here =================------------ +; CHECK: %j = alloca i32, align 4 +; CHECK: %f = alloca float, align 4 +; ------------================= FAIL here =================------------ +; CHECK: call void (...)* @llvm.frameescape(i32* %i, float* %f, int32* %j) +; CHECK: invoke void @"\01?may_throw@@YAXXZ"() +; CHECK: to label %invoke.cont unwind label %[[LPAD_LABEL:lpad[0-9]*]] + +; Function Attrs: uwtable +define void @"\01?test@@YAXXZ"() #0 { +entry: + %exn.slot = alloca i8* + %ehselector.slot = alloca i32 + %i = alloca i32, align 4 + %j = alloca i32, align 4 + %f = alloca float, align 4 + invoke void @"\01?may_throw@@YAXXZ"() + to label %invoke.cont unwind label %lpad + +invoke.cont: ; preds = %entry + br label %try.cont10 + +; CHECK: [[LPAD_LABEL]]: +; CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) +; CHECK: catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) +; CHECK: catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0M@8" to i8*) +; CHECK: [[RECOVER:\%.+]] = call i8* (...)* @llvm.eh.actions(i32 0, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*), i32* %i, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch" to i8*), i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0M@8" to i8*), float* %f, i8* bitcast (i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch1") +; CHECK: indirectbr i8* [[RECOVER]], [label %try.cont10, label %try.cont19] + +lpad: ; preds = %entry + %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) + catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) + catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0M@8" to i8*) + %1 = extractvalue { i8*, i32 } %0, 0 + store i8* %1, i8** %exn.slot + %2 = extractvalue { i8*, i32 } %0, 1 + store i32 %2, i32* %ehselector.slot + br label %catch.dispatch + +; CHECK-NOT: catch.dispatch: +catch.dispatch: ; preds = %lpad + %sel = load i32, i32* %ehselector.slot + %3 = call i32 @llvm.eh.typeid.for(i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*)) #3 + %matches = icmp eq i32 %sel, %3 + br i1 %matches, label %catch, label %catch.dispatch11 + +; CHECK-NOT: catch: +catch: ; preds = %catch.dispatch + %exn = load i8*, i8** %exn.slot + %4 = bitcast i32* %i to i8* + call void @llvm.eh.begincatch(i8* %exn, i8* %4) #3 + invoke void @"\01?may_throw@@YAXXZ"() + to label %invoke.cont2 unwind label %lpad1 + +; CHECK-NOT: invoke.cont2: +invoke.cont2: ; preds = %catch + br label %try.cont + +; CHECK-NOT: lpad1: +lpad1: ; preds = %catch + %5 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) + catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) + catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0M@8" to i8*) + %6 = extractvalue { i8*, i32 } %5, 0 + store i8* %6, i8** %exn.slot + %7 = extractvalue { i8*, i32 } %5, 1 + store i32 %7, i32* %ehselector.slot + br label %catch.dispatch3 + +; CHECK-NOT: catch.dispatch3: +catch.dispatch3: ; preds = %lpad1 + %sel4 = load i32, i32* %ehselector.slot + %8 = call i32 @llvm.eh.typeid.for(i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*)) #3 + %matches5 = icmp eq i32 %sel4, %8 + br i1 %matches5, label %catch6, label %catch.dispatch11 + +; CHECK-NOT: catch6: +catch6: ; preds = %catch.dispatch3 + %exn7 = load i8*, i8** %exn.slot + %9 = bitcast i32* %j to i8* + call void @llvm.eh.begincatch(i8* %exn7, i8* %9) #3 + %10 = load i32, i32* %j, align 4 + store i32 %10, i32* %i, align 4 + call void @llvm.eh.endcatch() #3 + br label %try.cont + +; CHECK-NOT: try.cont: +try.cont: ; preds = %catch6, %invoke.cont2 + %11 = load i32, i32* %i, align 4 + invoke void @"\01?handle_int@@YAXH@Z"(i32 %11) + to label %invoke.cont9 unwind label %lpad8 + +; CHECK-NOT: invoke.cont9: +invoke.cont9: ; preds = %try.cont + call void @llvm.eh.endcatch() #3 + br label %try.cont10 + +try.cont10: ; preds = %invoke.cont9, %invoke.cont + br label %try.cont19 + +; CHECK-NOT: lpad8: +lpad8: ; preds = %try.cont + %12 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) + catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0M@8" to i8*) + %13 = extractvalue { i8*, i32 } %12, 0 + store i8* %13, i8** %exn.slot + %14 = extractvalue { i8*, i32 } %12, 1 + store i32 %14, i32* %ehselector.slot + call void @llvm.eh.endcatch() #3 + br label %catch.dispatch11 + +; CHECK-NOT: catch.dispatch11: +catch.dispatch11: ; preds = %lpad8, %catch.dispatch3, %catch.dispatch + %sel12 = load i32, i32* %ehselector.slot + %15 = call i32 @llvm.eh.typeid.for(i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0M@8" to i8*)) #3 + %matches13 = icmp eq i32 %sel12, %15 + br i1 %matches13, label %catch14, label %eh.resume + +; CHECK-NOT: catch14: +catch14: ; preds = %catch.dispatch11 + %exn15 = load i8*, i8** %exn.slot + %16 = bitcast float* %f to i8* + call void @llvm.eh.begincatch(i8* %exn15, i8* %16) #3 + %17 = load float, float* %f, align 4 + call void @"\01?handle_float@@YAXM@Z"(float %17) + call void @llvm.eh.endcatch() #3 + br label %try.cont19 + +try.cont19: ; preds = %catch14, %try.cont10 + call void @"\01?done@@YAXXZ"() + ret void + +; CHECK-NOT: eh.resume: +eh.resume: ; preds = %lpad16, %catch.dispatch11 + %exn20 = load i8*, i8** %exn.slot + %sel21 = load i32, i32* %ehselector.slot + %lpad.val = insertvalue { i8*, i32 } undef, i8* %exn20, 0 + %lpad.val22 = insertvalue { i8*, i32 } %lpad.val, i32 %sel21, 1 + resume { i8*, i32 } %lpad.val22 +; CHECK: } +} + +; CHECK: define internal i8* @"\01?test@@YAXXZ.catch"(i8*, i8*) { +; CHECK: entry: +; CHECK: [[RECOVER_I:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 0) +; CHECK: [[I_PTR:\%.+]] = bitcast i8* [[RECOVER_I]] to i32* +; ------------================= FAIL here =================------------ +; CHECK: [[RECOVER_F:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 1) +; CHECK: [[F_PTR:\%.+]] = bitcast i8* [[RECOVER_F]] to float* +; ------------================= FAIL here =================------------ +; CHECK: [[RECOVER_J:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 2) +; CHECK: [[J_PTR:\%.+]] = bitcast i8* [[RECOVER_I]] to i32* +; CHECK: invoke void @"\01?may_throw@@YAXXZ"() +; CHECK: to label %invoke.cont2 unwind label %[[LPAD1_LABEL:lpad[0-9]*]] +; +; CHECK: invoke.cont2: ; preds = %entry +; CHECK: [[TMP1:\%.+]] = load i32, i32* [[I_PTR]], align 4 +; CHECK: invoke void @"\01?handle_int@@YAXH@Z"(i32 [[TMP1]]) +; CHECK: to label %invoke.cont9 unwind label %[[LPAD8_LABEL:lpad[0-9]*]] +; +; CHECK: [[LPAD1_LABEL]]:{{[ ]+}}; preds = %entry +; CHECK: [[LPAD1_VAL:\%.+]] = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) +; CHECK: catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) +; CHECK: catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0M@8" to i8*) +; ------------================= FAIL here =================------------ +; CHECK: [[RECOVER1:\%.+]] = call i8* (...)* @llvm.eh.actions({ i8*, i32 } [[LPAD1_VAL]], i32 0, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*), i32* [[J_PTR]], i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch2" to i8*), i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0M@8" to i8*), float* [[F_PTR1]], i8* bitcast (i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch1") +; CHECK: indirectbr i8* [[RECOVER1]], [] +; +; CHECK: invoke.cont9: +; CHECK: ret i8* blockaddress(@"\01?test@@YAXXZ", %try.cont10) +; +; CHECK: [[LPAD8_LABEL]]:{{[ ]+}}; preds = %invoke.cont2 +; CHECK: [[LPAD8_VAL:\%.+]] = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) +; CHECK: catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0M@8" to i8*) +; ------------================= FAIL here =================------------ +; CHECK: [[RECOVER2:\%.+]] = call i8* (...)* @llvm.eh.actions({ i8*, i32 } [[LPAD8_VAL]], i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0M@8" to i8*), float* [[F_PTR1]], i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch1") +; CHECK: indirectbr i8* [[RECOVER2]], [] +; +; CHECK: } + +; CHECK: define internal i8* @"\01?test@@YAXXZ.catch1"(i8*, i8*) { +; CHECK: entry: +; CHECK: [[RECOVER_F1:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 1) +; CHECK: [[F_PTR1:\%.+]] = bitcast i8* [[RECOVER_F1]] to float* +; CHECK: [[TMP2:\%.+]] = load float, float* [[F_PTR1]], align 4 +; CHECK: call void @"\01?handle_float@@YAXM@Z"(float [[TMP2]]) +; CHECK: ret i8* blockaddress(@"\01?test@@YAXXZ", %try.cont19) +; CHECK: } + +; CHECK: define internal i8* @"\01?test@@YAXXZ.catch2"(i8*, i8*) { +; CHECK: entry: +; ------------================= FAIL here =================------------ +; SHOULD-CHECK: [[J_PTR1:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 2) +; CHECK: [[RECOVER_I1:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 0) +; CHECK: [[I_PTR1:\%.+]] = bitcast i8* [[RECOVER_I1]] to i32* +; CHECK: [[TMP3:\%.+]] = load i32, i32* [[J_PTR1]], align 4 +; CHECK: store i32 [[TMP3]], i32* [[I_PTR1]] +; ------------================= FAIL here =================------------ +; CHECK: ret i8* blockaddress(@"\01?test@@YAXXZ.catch", %invoke.cont2) +; CHECK: } + + +declare void @"\01?may_throw@@YAXXZ"() #1 + +declare i32 @__CxxFrameHandler3(...) + +; Function Attrs: nounwind readnone +declare i32 @llvm.eh.typeid.for(i8*) #2 + +; Function Attrs: nounwind +declare void @llvm.eh.begincatch(i8* nocapture, i8* nocapture) #3 + +; Function Attrs: nounwind +declare void @llvm.eh.endcatch() #3 + +declare void @"\01?handle_int@@YAXH@Z"(i32) #1 + +declare void @"\01?handle_float@@YAXM@Z"(float) #1 + +declare void @"\01?done@@YAXXZ"() #1 + +attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } +attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } +attributes #2 = { nounwind readnone } +attributes #3 = { nounwind } + +!llvm.module.flags = !{!0} +!llvm.ident = !{!1} + +!0 = !{i32 1, !"PIC Level", i32 2} +!1 = !{!"clang version 3.7.0 (trunk 232069) (llvm/trunk 232070)"} diff --git a/test/CodeGen/WinEH/cppeh-nonalloca-frame-values.ll b/test/CodeGen/WinEH/cppeh-nonalloca-frame-values.ll new file mode 100644 index 0000000..41d9006 --- /dev/null +++ b/test/CodeGen/WinEH/cppeh-nonalloca-frame-values.ll @@ -0,0 +1,273 @@ +; RUN: opt -mtriple=x86_64-pc-windows-msvc -winehprepare -S -o - < %s | FileCheck %s + +; This test is based on the following code: +; +; struct SomeData { +; int a; +; int b; +; }; +; +; void may_throw(); +; void does_not_throw(int i); +; void dump(int *, int, SomeData&); +; +; void test() { +; int NumExceptions = 0; +; int ExceptionVal[10]; +; SomeData Data = { 0, 0 }; +; +; for (int i = 0; i < 10; ++i) { +; try { +; may_throw(); +; Data.a += i; +; } +; catch (int e) { +; ExceptionVal[NumExceptions] = e; +; ++NumExceptions; +; if (e == i) +; Data.b += e; +; else +; Data.a += e; +; } +; does_not_throw(NumExceptions); +; } +; dump(ExceptionVal, NumExceptions, Data); +; } +; +; Unlike the cppeh-frame-vars.ll test, this test was generated using -O2 +; optimization, which results in non-alloca values being used in the +; catch handler. + +; ModuleID = 'cppeh-frame-vars.cpp' +target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" +target triple = "x86_64-pc-windows-msvc" + +%rtti.TypeDescriptor2 = type { i8**, i8*, [3 x i8] } +%struct.SomeData = type { i32, i32 } + +$"\01??_R0H@8" = comdat any + +@"\01??_7type_info@@6B@" = external constant i8* +@"\01??_R0H@8" = linkonce_odr global %rtti.TypeDescriptor2 { i8** @"\01??_7type_info@@6B@", i8* null, [3 x i8] c".H\00" }, comdat + +; The function entry should be rewritten like this. +; CHECK: define void @"\01?test@@YAXXZ"() #0 { +; CHECK: entry: +; CHECK: [[NUMEXCEPTIONS_REGMEM:\%.+]] = alloca i32 +; CHECK: [[I_REGMEM:\%.+]] = alloca i32 +; CHECK: [[E_PTR:\%.+]] = alloca i32, align 4 +; CHECK: [[EXCEPTIONVAL:\%.+]] = alloca [10 x i32], align 16 +; CHECK: [[DATA_PTR:\%.+]] = alloca i64, align 8 +; CHECK: [[TMPCAST:\%.+]] = bitcast i64* [[DATA_PTR]] to %struct.SomeData* +; CHECK: [[TMP:\%.+]] = bitcast [10 x i32]* [[EXCEPTIONVAL]] to i8* +; CHECK: call void @llvm.lifetime.start(i64 40, i8* [[TMP]]) +; CHECK: store i64 0, i64* [[DATA_PTR]], align 8 +; CHECK: [[A_REGMEM:\%.+]] = alloca i32* +; CHECK: [[A_PTR:\%.+]] = bitcast i64* [[DATA_PTR]] to i32* +; CHECK: store i32* [[A_PTR]], i32** [[A_REGMEM]] +; CHECK: [[B_PTR:\%.+]] = getelementptr inbounds %struct.SomeData, %struct.SomeData* [[TMPCAST]], i64 0, i32 1 +; CHECK: [[B_REGMEM:\%.+]] = alloca i32* +; CHECK: store i32* [[B_PTR]], i32** [[B_REGMEM]] +; CHECK: store i32 0, i32* [[NUMEXCEPTIONS_REGMEM]] +; CHECK: store i32 0, i32* [[I_REGMEM]] +; CHECK: call void (...)* @llvm.frameescape(i32* %e, i32* %NumExceptions.020.reg2mem, [10 x i32]* [[EXCEPTIONVAL]], i32* [[I_REGMEM]], i32** [[A_REGMEM]], i32** [[B_REGMEM]]) +; CHECK: br label %for.body + +; Function Attrs: uwtable +define void @"\01?test@@YAXXZ"() #0 { +entry: + %e = alloca i32, align 4 + %ExceptionVal = alloca [10 x i32], align 16 + %Data = alloca i64, align 8 + %tmpcast = bitcast i64* %Data to %struct.SomeData* + %0 = bitcast [10 x i32]* %ExceptionVal to i8* + call void @llvm.lifetime.start(i64 40, i8* %0) #1 + store i64 0, i64* %Data, align 8 + %a = bitcast i64* %Data to i32* + %b = getelementptr inbounds %struct.SomeData, %struct.SomeData* %tmpcast, i64 0, i32 1 + br label %for.body + +; CHECK: for.body: +; CHECK-NOT: phi i32 [ 0, %entry ], [ {{\%NumExceptions.*}}, %try.cont ] +; CHECK-NOT: phi i32 [ 0, %entry ], [ {{\%inc.*}}, %try.cont ] +; CHECK: [[I_RELOAD:\%.+]] = load i32, i32* [[I_REGMEM]] +; CHECK: [[NUMEXCEPTIONS_RELOAD:\%.+]] = load i32, i32* [[NUMEXCEPTIONS_REGMEM]] +for.body: ; preds = %entry, %try.cont + %NumExceptions.020 = phi i32 [ 0, %entry ], [ %NumExceptions.1, %try.cont ] + %i.019 = phi i32 [ 0, %entry ], [ %inc5, %try.cont ] + invoke void @"\01?may_throw@@YAXXZ"() + to label %invoke.cont unwind label %lpad + +; CHECK: invoke.cont: ; preds = %for.body +; CHECK: [[A_RELOAD:\%.+]] = load volatile i32*, i32** [[A_REGMEM]] +; CHECK: [[TMP1:\%.+]] = load i32, i32* [[A_RELOAD]], align 8 +; CHECK: [[ADD:\%.+]] = add nsw i32 [[TMP1]], [[I_RELOAD]] +; CHECK: [[A_RELOAD1:\%.+]] = load volatile i32*, i32** [[A_REGMEM]] +; CHECK: store i32 [[ADD]], i32* [[A_RELOAD1]], align 8 +; CHECK: br label %try.cont +invoke.cont: ; preds = %for.body + %1 = load i32, i32* %a, align 8, !tbaa !2 + %add = add nsw i32 %1, %i.019 + store i32 %add, i32* %a, align 8, !tbaa !2 + br label %try.cont + +; CHECK: [[LPAD_LABEL:lpad[0-9]*]]:{{[ ]+}}; preds = %for.body +; CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) +; CHECK-NEXT: catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) +; CHECK-NEXT: [[RECOVER:\%.+]] = call i8* (...)* @llvm.eh.actions(i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*), i32* %e, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch") +; CHECK-NEXT: indirectbr i8* [[RECOVER]], [label %try.cont] + +lpad: ; preds = %for.body + %2 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) + catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) + %3 = extractvalue { i8*, i32 } %2, 1 + %4 = tail call i32 @llvm.eh.typeid.for(i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*)) #1 + %matches = icmp eq i32 %3, %4 + br i1 %matches, label %catch, label %eh.resume + +; CHECK-NOT: catch: + +catch: ; preds = %lpad + %5 = extractvalue { i8*, i32 } %2, 0 + %e.i8 = bitcast i32* %e to i8* + call void @llvm.eh.begincatch(i8* %5, i8* %e.i8) #1 + %tmp8 = load i32, i32* %e, align 4, !tbaa !7 + %idxprom = sext i32 %NumExceptions.020 to i64 + %arrayidx = getelementptr inbounds [10 x i32], [10 x i32]* %ExceptionVal, i64 0, i64 %idxprom + store i32 %tmp8, i32* %arrayidx, align 4, !tbaa !7 + %inc = add nsw i32 %NumExceptions.020, 1 + %cmp1 = icmp eq i32 %tmp8, %i.019 + br i1 %cmp1, label %if.then, label %if.else + +; CHECK-NOT: if.then: + +if.then: ; preds = %catch + %tmp9 = load i32, i32* %b, align 4, !tbaa !8 + %add2 = add nsw i32 %tmp9, %i.019 + store i32 %add2, i32* %b, align 4, !tbaa !8 + br label %if.end + +; CHECK-NOT: if.else: + +if.else: ; preds = %catch + %tmp10 = load i32, i32* %a, align 8, !tbaa !2 + %add4 = add nsw i32 %tmp10, %tmp8 + store i32 %add4, i32* %a, align 8, !tbaa !2 + br label %if.end + +; CHECK-NOT: if.end: + +if.end: ; preds = %if.else, %if.then + tail call void @llvm.eh.endcatch() #1 + br label %try.cont + +; CHECK: try.cont:{{[ ]+}}; preds = %[[LPAD_LABEL]], %invoke.cont +; CHECK-NOT: phi i32 +; CHECK: tail call void @"\01?does_not_throw@@YAXH@Z"(i32 [[NUMEXCEPTIONS_RELOAD]]) +; CHECK: [[INC:\%.+]] = add nuw nsw i32 [[I_RELOAD]], 1 +; CHECK: [[CMP:\%.+]] = icmp slt i32 [[INC]], 10 +; CHECK: store i32 [[NUMEXCEPTIONS_RELOAD]], i32* [[NUMEXCEPTIONS_REGMEM]] +; CHECK: store i32 [[INC]], i32* [[I_REGMEM]] +; CHECK: br i1 [[CMP]], label %for.body, label %for.end + +try.cont: ; preds = %if.end, %invoke.cont + %NumExceptions.1 = phi i32 [ %NumExceptions.020, %invoke.cont ], [ %inc, %if.end ] + tail call void @"\01?does_not_throw@@YAXH@Z"(i32 %NumExceptions.1) + %inc5 = add nuw nsw i32 %i.019, 1 + %cmp = icmp slt i32 %inc5, 10 + br i1 %cmp, label %for.body, label %for.end + +for.end: ; preds = %try.cont + %NumExceptions.1.lcssa = phi i32 [ %NumExceptions.1, %try.cont ] + %arraydecay = getelementptr inbounds [10 x i32], [10 x i32]* %ExceptionVal, i64 0, i64 0 + call void @"\01?dump@@YAXPEAHHAEAUSomeData@@@Z"(i32* %arraydecay, i32 %NumExceptions.1.lcssa, %struct.SomeData* dereferenceable(8) %tmpcast) + call void @llvm.lifetime.end(i64 40, i8* %0) #1 + ret void + +eh.resume: ; preds = %lpad + %.lcssa = phi { i8*, i32 } [ %2, %lpad ] + resume { i8*, i32 } %.lcssa +} + +; The following catch handler should be outlined. +; CHECK: define internal i8* @"\01?test@@YAXXZ.catch"(i8*, i8*) { +; CHECK: entry: +; CHECK: [[RECOVER_E:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 0) +; CHECK: [[E_PTR:\%.+]] = bitcast i8* [[RECOVER_E]] to i32* +; CHECK: [[RECOVER_EH_TEMP:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 1) +; CHECK: [[EH_TEMP:\%.+]] = bitcast i8* [[RECOVER_EH_TEMP]] to i32* +; CHECK: [[NUMEXCEPTIONS_RELOAD:\%.+]] = load i32, i32* [[EH_TEMP]] +; CHECK: [[RECOVER_EXCEPTIONVAL:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 2) +; CHECK: [[EXCEPTIONVAL:\%.+]] = bitcast i8* [[RECOVER_EXCEPTIONVAL]] to [10 x i32]* +; CHECK: [[RECOVER_EH_TEMP1:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 3) +; CHECK: [[EH_TEMP1:\%.+]] = bitcast i8* [[RECOVER_EH_TEMP1]] to i32* +; CHECK: [[I_RELOAD:\%.+]] = load i32, i32* [[EH_TEMP1]] +; CHECK: [[RECOVER_EH_TEMP2:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 4) +; CHECK: [[EH_TEMP2:\%.+]] = bitcast i8* [[RECOVER_EH_TEMP2]] to i32** +; CHECK: [[A_RELOAD:\%.+]] = load i32*, i32** [[EH_TEMP2]] +; CHECK: [[RECOVER_EH_TEMP3:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 5) +; CHECK: [[EH_TEMP3:\%.+]] = bitcast i8* [[RECOVER_EH_TEMP3]] to i32** +; CHECK: [[B_RELOAD:\%.+]] = load i32*, i32** [[EH_TEMP3]] +; CHECK: [[E_I8PTR:\%.+]] = bitcast i32* [[E_PTR]] to i8* +; CHECK: [[TMP:\%.+]] = load i32, i32* [[E_PTR]], align 4 +; CHECK: [[IDXPROM:\%.+]] = sext i32 [[NUMEXCEPTIONS_RELOAD]] to i64 +; CHECK: [[ARRAYIDX:\%.+]] = getelementptr inbounds [10 x i32], [10 x i32]* [[EXCEPTIONVAL]], i64 0, i64 [[IDXPROM]] +; CHECK: store i32 [[TMP]], i32* [[ARRAYIDX]], align 4 +; CHECK: [[INC:\%.+]] = add nsw i32 [[NUMEXCEPTIONS_RELOAD]], 1 +; CHECK: [[CMP:\%.+]] = icmp eq i32 [[TMP]], [[I_RELOAD]] +; CHECK: br i1 [[CMP]], label %if.then, label %if.else +; +; CHECK: if.then:{{[ ]+}}; preds = %entry +; CHECK: [[TMP1:\%.+]] = load i32, i32* [[B_RELOAD]], align 4 +; CHECK: [[ADD:\%.+]] = add nsw i32 [[TMP1]], [[I_RELOAD]] +; CHECK: store i32 [[ADD]], i32* [[B_RELOAD]], align 4 +; CHECK: br label %if.end +; +; CHECK: if.else:{{[ ]+}}; preds = %entry +; CHECK: [[TMP2:\%.+]] = load i32, i32* [[A_RELOAD]], align 8 +; CHECK: [[ADD2:\%.+]] = add nsw i32 [[TMP2]], [[TMP]] +; CHECK: store i32 [[ADD2]], i32* [[A_RELOAD]], align 8 +; CHECK: br label %if.end +; +; CHECK: if.end:{{[ ]+}}; preds = %if.else, %if.then +; CHECK: ret i8* blockaddress(@"\01?test@@YAXXZ", %try.cont) +; CHECK: } + +; Function Attrs: nounwind +declare void @llvm.lifetime.start(i64, i8* nocapture) #1 + +declare void @"\01?may_throw@@YAXXZ"() #2 + +declare i32 @__CxxFrameHandler3(...) + +; Function Attrs: nounwind readnone +declare i32 @llvm.eh.typeid.for(i8*) #3 + +declare void @llvm.eh.begincatch(i8*, i8*) + +declare void @llvm.eh.endcatch() + +declare void @"\01?does_not_throw@@YAXH@Z"(i32) #2 + +declare void @"\01?dump@@YAXPEAHHAEAUSomeData@@@Z"(i32*, i32, %struct.SomeData* dereferenceable(8)) #2 + +; Function Attrs: nounwind +declare void @llvm.lifetime.end(i64, i8* nocapture) #1 + +attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } +attributes #1 = { nounwind } +attributes #2 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } +attributes #3 = { nounwind readnone } + +!llvm.module.flags = !{!0} +!llvm.ident = !{!1} + +!0 = !{i32 1, !"PIC Level", i32 2} +!1 = !{!"clang version 3.7.0 (trunk 228868)"} +!2 = !{!3, !4, i64 0} +!3 = !{!"?AUSomeData@@", !4, i64 0, !4, i64 4} +!4 = !{!"int", !5, i64 0} +!5 = !{!"omnipotent char", !6, i64 0} +!6 = !{!"Simple C/C++ TBAA"} +!7 = !{!4, !4, i64 0} +!8 = !{!3, !4, i64 4} diff --git a/test/CodeGen/WinEH/lit.local.cfg b/test/CodeGen/WinEH/lit.local.cfg new file mode 100644 index 0000000..67905d7 --- /dev/null +++ b/test/CodeGen/WinEH/lit.local.cfg @@ -0,0 +1,12 @@ +# FIXME: For now, override suffixes to exclude any .s tests, because some of the +# buildbots have a stray misched-copy.s output file lying around that causes +# failures. See misched-copy.s where we try and clean up that file. +# +# It should be possible to remove this override once all the bots have cycled +# cleanly. +config.suffixes = ['.ll', '.test', '.txt'] + +# FIXME: Add Windows on ARM support to these tests. +if not 'X86' in config.root.targets: + config.unsupported = True + diff --git a/test/CodeGen/WinEH/seh-simple.ll b/test/CodeGen/WinEH/seh-simple.ll new file mode 100644 index 0000000..26b3f83 --- /dev/null +++ b/test/CodeGen/WinEH/seh-simple.ll @@ -0,0 +1,138 @@ +; RUN: opt -S -winehprepare -sehprepare -mtriple=x86_64-windows-msvc < %s | FileCheck %s + +target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" +target triple = "x86_64-pc-windows-msvc" + +declare void @cleanup() +declare i32 @filt() +declare void @might_crash() +declare i32 @__C_specific_handler(...) +declare i32 @llvm.eh.typeid.for(i8*) + +define i32 @simple_except_store() { +entry: + %retval = alloca i32 + store i32 0, i32* %retval + invoke void @might_crash() + to label %return unwind label %lpad + +lpad: + %ehvals = landingpad { i8*, i32 } personality i32 (...)* @__C_specific_handler + catch i32 ()* @filt + %sel = extractvalue { i8*, i32 } %ehvals, 1 + %filt_sel = tail call i32 @llvm.eh.typeid.for(i8* bitcast (i32 ()* @filt to i8*)) + %matches = icmp eq i32 %sel, %filt_sel + br i1 %matches, label %__except, label %eh.resume + +__except: + store i32 1, i32* %retval + br label %return + +return: + %r = load i32, i32* %retval + ret i32 %r + +eh.resume: + resume { i8*, i32 } %ehvals +} + +; CHECK-LABEL: define i32 @simple_except_store() +; CHECK: landingpad { i8*, i32 } +; CHECK-NEXT: catch i32 ()* @filt +; CHECK-NEXT: call i8* (...)* @llvm.eh.actions(i32 1, i8* bitcast (i32 ()* @filt to i8*), i8* null, i8* blockaddress(@simple_except_store, %__except)) +; CHECK-NEXT: indirectbr {{.*}} [label %__except] + +define i32 @catch_all() { +entry: + %retval = alloca i32 + store i32 0, i32* %retval + invoke void @might_crash() + to label %return unwind label %lpad + +lpad: + %ehvals = landingpad { i8*, i32 } personality i32 (...)* @__C_specific_handler + catch i8* null + store i32 1, i32* %retval + br label %return + +return: + %r = load i32, i32* %retval + ret i32 %r +} + +; CHECK-LABEL: define i32 @catch_all() +; CHECK: landingpad { i8*, i32 } +; CHECK-NEXT: catch i8* null +; CHECK-NEXT: call i8* (...)* @llvm.eh.actions(i32 1, i8* null, i8* null, i8* blockaddress(@catch_all, %catch.all)) +; CHECK-NEXT: indirectbr {{.*}} [label %catch.all] +; +; CHECK: catch.all: +; CHECK: store i32 1, i32* %retval + + +define i32 @except_phi() { +entry: + invoke void @might_crash() + to label %return unwind label %lpad + +lpad: + %ehvals = landingpad { i8*, i32 } personality i32 (...)* @__C_specific_handler + catch i32 ()* @filt + %sel = extractvalue { i8*, i32 } %ehvals, 1 + %filt_sel = tail call i32 @llvm.eh.typeid.for(i8* bitcast (i32 ()* @filt to i8*)) + %matches = icmp eq i32 %sel, %filt_sel + br i1 %matches, label %return, label %eh.resume + +return: + %r = phi i32 [0, %entry], [1, %lpad] + ret i32 %r + +eh.resume: + resume { i8*, i32 } %ehvals +} + +; CHECK-LABEL: define i32 @except_phi() +; CHECK: landingpad { i8*, i32 } +; CHECK-NEXT: catch i32 ()* @filt +; CHECK-NEXT: call i8* (...)* @llvm.eh.actions(i32 1, i8* bitcast (i32 ()* @filt to i8*), i8* null, i8* blockaddress(@except_phi, %return)) +; CHECK-NEXT: indirectbr {{.*}} [label %return] +; +; CHECK: return: +; CHECK-NEXT: %r = phi i32 [ 0, %entry ], [ 1, %lpad1 ] +; CHECK-NEXT: ret i32 %r + +define i32 @cleanup_and_except() { +entry: + invoke void @might_crash() + to label %return unwind label %lpad + +lpad: + %ehvals = landingpad { i8*, i32 } personality i32 (...)* @__C_specific_handler + cleanup + catch i32 ()* @filt + call void @cleanup() + %sel = extractvalue { i8*, i32 } %ehvals, 1 + %filt_sel = tail call i32 @llvm.eh.typeid.for(i8* bitcast (i32 ()* @filt to i8*)) + %matches = icmp eq i32 %sel, %filt_sel + br i1 %matches, label %return, label %eh.resume + +return: + %r = phi i32 [0, %entry], [1, %lpad] + ret i32 %r + +eh.resume: + resume { i8*, i32 } %ehvals +} + +; CHECK-LABEL: define i32 @cleanup_and_except() +; CHECK: landingpad { i8*, i32 } +; CHECK-NEXT: cleanup +; CHECK-NEXT: catch i32 ()* @filt +; CHECK-NEXT: call i8* (...)* @llvm.eh.actions( +; CHECK: i32 0, void (i8*, i8*)* @cleanup_and_except.cleanup, +; CHECK: i32 1, i8* bitcast (i32 ()* @filt to i8*), i8* null, i8* blockaddress(@cleanup_and_except, %return)) +; CHECK-NEXT: indirectbr {{.*}} [label %return] +; +; CHECK: return: +; CHECK-NEXT: %r = phi i32 [ 0, %entry ], [ 1, %lpad1 ] +; CHECK-NEXT: ret i32 %r |