1 files changed, 123 insertions, 0 deletions
diff --git a/test/CodeGen/X86/cppeh-catch-scalar.ll b/test/CodeGen/X86/cppeh-catch-scalar.ll
new file mode 100644
index 0000000..fd5df6c
--- /dev/null
+++ b/test/CodeGen/X86/cppeh-catch-scalar.ll
@@ -0,0 +1,123 @@
+; 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"
+
+; This is the structure that will get created for the frame allocation.
+; CHECK: %struct._Z4testv.ehdata = type { i32, i8*, i32 }
+
+@_ZTIi = external constant i8*
+
+; The function entry will be rewritten like this.
+; CHECK: define void @_Z4testv() #0 {
+; CHECK: entry:
+; CHECK:   %frame.alloc = call i8* @llvm.frameallocate(i32 24)
+; CHECK:   %eh.data = bitcast i8* %frame.alloc to %struct._Z4testv.ehdata*
+; CHECK:   %exn.slot = alloca i8*
+; CHECK:   %ehselector.slot = alloca i32
+; CHECK-NOT:  %i = alloca i32, align 4
+; CHECK:  %i = getelementptr inbounds %struct._Z4testv.ehdata* %eh.data, i32 0, i32 2
+
+; 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
+
+lpad:                                             ; preds = %entry
+  %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
+          catch i8* bitcast (i8** @_ZTIi 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
+
+catch.dispatch:                                   ; preds = %lpad
+  %sel = load i32* %ehselector.slot
+  %3 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*)) #3
+  %matches = icmp eq i32 %sel, %3
+  br i1 %matches, label %catch, label %eh.resume
+
+catch:                                            ; preds = %catch.dispatch
+  %exn11 = load i8** %exn.slot
+  %4 = call i8* @llvm.eh.begincatch(i8* %exn11) #3
+  %5 = bitcast i8* %4 to i32*
+  %6 = load i32* %5, align 4
+  store i32 %6, i32* %i, align 4
+  %7 = load i32* %i, align 4
+  call void @_Z10handle_inti(i32 %7)
+  br label %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
+
+eh.resume:                                        ; preds = %catch.dispatch
+  %exn3 = load i8** %exn.slot
+  %sel4 = load 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: define i8* @_Z4testv.catch(i8*, i8*) {
+; CHECK: catch.entry:
+; CHECK:   %eh.alloc = call i8* @llvm.framerecover(i8* bitcast (void ()* @_Z4testv to i8*), i8* %1)
+; CHECK:   %eh.data = bitcast i8* %eh.alloc to %struct._Z4testv.ehdata*
+; CHECK:   %eh.obj.ptr = getelementptr inbounds %struct._Z4testv.ehdata* %eh.data, i32 0, i32 1
+; CHECK:   %eh.obj = load i8** %eh.obj.ptr
+; CHECK:   %i = getelementptr inbounds %struct._Z4testv.ehdata* %eh.data, i32 0, i32 2
+; CHECK:   %2 = bitcast i8* %eh.obj to i32*
+; CHECK:   %3 = load i32* %2, align 4
+; CHECK:   store i32 %3, i32* %i, align 4
+; CHECK:   %4 = load i32* %i, align 4
+; CHECK:   call void @_Z10handle_inti(i32 %4)
+; 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 i8* @llvm.eh.begincatch(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)"}