1 files changed, 121 insertions, 0 deletions
diff --git a/test/Transforms/Inline/debug-info-duplicate-calls.ll b/test/Transforms/Inline/debug-info-duplicate-calls.ll
new file mode 100644
index 0000000..2363693
--- /dev/null
+++ b/test/Transforms/Inline/debug-info-duplicate-calls.ll
@@ -0,0 +1,121 @@
+; RUN: opt < %s -always-inline -S | FileCheck %s
+
+; Original input generated from clang -emit-llvm -S -c -mllvm -disable-llvm-optzns
+;
+; #define CALLS1 f2(); f2();
+; #define CALLS2 f4(); f4();
+; void f1();
+; inline __attribute__((always_inline)) void f2() {
+;   f1();
+; }
+; inline __attribute__((always_inline)) void f3() {
+;   CALLS1
+; }
+; inline __attribute__((always_inline)) void f4() {
+;   f3();
+; }
+; void f() {
+;   CALLS2
+; }
+
+; There should be unique locations for all 4 of these instructions, correctly
+; describing the inlining that has occurred, even in the face of duplicate call
+; site locations.
+
+; The nomenclature used for the tags here is <function name>[cs<number>] where
+; 'cs' is an abbreviation for 'call site' and the number indicates which call
+; site from within the named function this is. (so, given the above inlining, we
+; should have 4 calls to 'f1', two from the first call to f4 and two from the
+; second call to f4)
+
+; CHECK: call void @_Z2f1v(), !dbg [[fcs1_f4_f3cs1_f2:![0-9]+]]
+; CHECK: call void @_Z2f1v(), !dbg [[fcs1_f4_f3cs2_f2:![0-9]+]]
+; CHECK: call void @_Z2f1v(), !dbg [[fcs2_f4_f3cs1_f2:![0-9]+]]
+; CHECK: call void @_Z2f1v(), !dbg [[fcs2_f4_f3cs2_f2:![0-9]+]]
+
+; CHECK-DAG: [[F:![0-9]+]] = {{.*}} ; [ DW_TAG_subprogram ] {{.*}} [f]
+; CHECK-DAG: [[F2:![0-9]+]] = {{.*}} ; [ DW_TAG_subprogram ] {{.*}} [f2]
+; CHECK-DAG: [[F3:![0-9]+]] = {{.*}} ; [ DW_TAG_subprogram ] {{.*}} [f3]
+; CHECK-DAG: [[F4:![0-9]+]] = {{.*}} ; [ DW_TAG_subprogram ] {{.*}} [f4]
+
+; CHECK: [[fcs1_f4_f3cs1_f2]] = {{.*}}, scope: [[F2]], inlinedAt: [[fcs1_f4_f3cs1:![0-9]+]])
+; CHECK: [[fcs1_f4_f3cs1]] = {{.*}}, scope: [[F3]], inlinedAt: [[fcs1_f4:![0-9]+]])
+; CHECK: [[fcs1_f4]] = {{.*}}, scope: [[F4]], inlinedAt: [[fcs1:![0-9]+]])
+; CHECK: [[fcs1]] = {{.*}}, scope: [[F]])
+; CHECK: [[fcs1_f4_f3cs2_f2]] = {{.*}}, scope: [[F2]], inlinedAt: [[fcs1_f4_f3cs2:![0-9]+]])
+; CHECK: [[fcs1_f4_f3cs2]] = {{.*}}, scope: [[F3]], inlinedAt: [[fcs1_f4]])
+
+; CHECK: [[fcs2_f4_f3cs1_f2]] = {{.*}}, scope: [[F2]], inlinedAt: [[fcs2_f4_f3cs1:![0-9]+]])
+; CHECK: [[fcs2_f4_f3cs1]] = {{.*}}, scope: [[F3]], inlinedAt: [[fcs2_f4:![0-9]+]])
+; CHECK: [[fcs2_f4]] = {{.*}}, scope: [[F4]], inlinedAt: [[fcs2:![0-9]+]])
+; CHECK: [[fcs2]] = {{.*}}, scope: [[F]])
+; CHECK: [[fcs2_f4_f3cs2_f2]] = {{.*}}, scope: [[F2]], inlinedAt: [[fcs2_f4_f3cs2:![0-9]+]])
+; CHECK: [[fcs2_f4_f3cs2]] = {{.*}}, scope: [[F3]], inlinedAt: [[fcs2_f4]])
+
+$_Z2f4v = comdat any
+
+$_Z2f3v = comdat any
+
+$_Z2f2v = comdat any
+
+; Function Attrs: uwtable
+define void @_Z1fv() #0 {
+entry:
+  call void @_Z2f4v(), !dbg !13
+  call void @_Z2f4v(), !dbg !13
+  ret void, !dbg !14
+}
+
+; Function Attrs: alwaysinline inlinehint uwtable
+define linkonce_odr void @_Z2f4v() #1 comdat {
+entry:
+  call void @_Z2f3v(), !dbg !15
+  ret void, !dbg !16
+}
+
+; Function Attrs: alwaysinline inlinehint uwtable
+define linkonce_odr void @_Z2f3v() #1 comdat {
+entry:
+  call void @_Z2f2v(), !dbg !17
+  call void @_Z2f2v(), !dbg !17
+  ret void, !dbg !18
+}
+
+; Function Attrs: alwaysinline inlinehint uwtable
+define linkonce_odr void @_Z2f2v() #1 comdat {
+entry:
+  call void @_Z2f1v(), !dbg !19
+  ret void, !dbg !20
+}
+
+declare void @_Z2f1v() #2
+
+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 = { alwaysinline inlinehint 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 #2 = { "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" }
+
+!llvm.dbg.cu = !{!0}
+!llvm.module.flags = !{!10, !11}
+!llvm.ident = !{!12}
+
+!0 = !{!"0x11\004\00clang version 3.7.0 (trunk 226474) (llvm/trunk 226478)\000\00\000\00\002", !1, !2, !2, !3, !2, !2} ; [ DW_TAG_compile_unit ] [/tmp/dbginfo/debug-info-duplicate-calls.cpp] [DW_LANG_C_plus_plus]
+!1 = !{!"debug-info-duplicate-calls.cpp", !"/tmp/dbginfo"}
+!2 = !{}
+!3 = !{!4, !7, !8, !9}
+!4 = !{!"0x2e\00f\00f\00\0013\000\001\000\000\00256\000\0013", !1, !5, !6, null, void ()* @_Z1fv, null, null, !2} ; [ DW_TAG_subprogram ] [line 13] [def] [f]
+!5 = !{!"0x29", !1}                               ; [ DW_TAG_file_type ] [/tmp/dbginfo/debug-info-duplicate-calls.cpp]
+!6 = !{!"0x15\00\000\000\000\000\000\000", null, null, null, !2, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!7 = !{!"0x2e\00f4\00f4\00\0010\000\001\000\000\00256\000\0010", !1, !5, !6, null, void ()* @_Z2f4v, null, null, !2} ; [ DW_TAG_subprogram ] [line 10] [def] [f4]
+!8 = !{!"0x2e\00f3\00f3\00\007\000\001\000\000\00256\000\007", !1, !5, !6, null, void ()* @_Z2f3v, null, null, !2} ; [ DW_TAG_subprogram ] [line 7] [def] [f3]
+!9 = !{!"0x2e\00f2\00f2\00\004\000\001\000\000\00256\000\004", !1, !5, !6, null, void ()* @_Z2f2v, null, null, !2} ; [ DW_TAG_subprogram ] [line 4] [def] [f2]
+!10 = !{i32 2, !"Dwarf Version", i32 4}
+!11 = !{i32 2, !"Debug Info Version", i32 2}
+!12 = !{!"clang version 3.7.0 (trunk 226474) (llvm/trunk 226478)"}
+!13 = !MDLocation(line: 14, column: 3, scope: !4)
+!14 = !MDLocation(line: 15, column: 1, scope: !4)
+!15 = !MDLocation(line: 11, column: 3, scope: !7)
+!16 = !MDLocation(line: 12, column: 1, scope: !7)
+!17 = !MDLocation(line: 8, column: 3, scope: !8)
+!18 = !MDLocation(line: 9, column: 1, scope: !8)
+!19 = !MDLocation(line: 5, column: 3, scope: !9)
+!20 = !MDLocation(line: 6, column: 1, scope: !9)