1 ; Test that coverage instrumentation does not lose debug location. 2 3 ; RUN: opt < %s -asan -asan-module -asan-coverage=1 -S | FileCheck %s 4 5 ; C++ source: 6 ; 1: struct A { 7 ; 2: int f(); 8 ; 3: int x; 9 ; 4: }; 10 ; 5: 11 ; 6: int A::f() { 12 ; 7: return x; 13 ; 8: } 14 ; clang++ ../1.cc -O3 -g -S -emit-llvm -fno-strict-aliasing 15 ; and add sanitize_address to @_ZN1A1fEv 16 17 ; Test that __sanitizer_cov call has !dbg pointing to the opening { of A::f(). 18 ; CHECK: call void @__sanitizer_cov(), !dbg [[A:!.*]] 19 ; CHECK: [[A]] = metadata !{i32 6, i32 0, metadata !{{.*}}, null} 20 21 22 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 23 target triple = "x86_64-unknown-linux-gnu" 24 25 %struct.A = type { i32 } 26 27 ; Function Attrs: nounwind readonly uwtable 28 define i32 @_ZN1A1fEv(%struct.A* nocapture readonly %this) #0 align 2 { 29 entry: 30 tail call void @llvm.dbg.value(metadata !{%struct.A* %this}, i64 0, metadata !15), !dbg !20 31 %x = getelementptr inbounds %struct.A* %this, i64 0, i32 0, !dbg !21 32 %0 = load i32* %x, align 4, !dbg !21 33 ret i32 %0, !dbg !21 34 } 35 36 ; Function Attrs: nounwind readnone 37 declare void @llvm.dbg.value(metadata, i64, metadata) #1 38 39 attributes #0 = { sanitize_address nounwind readonly 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" } 40 attributes #1 = { nounwind readnone } 41 42 !llvm.dbg.cu = !{!0} 43 !llvm.module.flags = !{!17, !18} 44 !llvm.ident = !{!19} 45 46 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.5.0 (210251)", i1 true, metadata !"", i32 0, metadata !2, metadata !3, metadata !12, metadata !2, metadata !2, metadata !"", i32 1} ; [ DW_TAG_compile_unit ] [/code/llvm/build0/../1.cc] [DW_LANG_C_plus_plus] 47 !1 = metadata !{metadata !"../1.cc", metadata !"/code/llvm/build0"} 48 !2 = metadata !{} 49 !3 = metadata !{metadata !4} 50 !4 = metadata !{i32 786451, metadata !1, null, metadata !"A", i32 1, i64 32, i64 32, i32 0, i32 0, null, metadata !5, i32 0, null, null, metadata !"_ZTS1A"} ; [ DW_TAG_structure_type ] [A] [line 1, size 32, align 32, offset 0] [def] [from ] 51 !5 = metadata !{metadata !6, metadata !8} 52 !6 = metadata !{i32 786445, metadata !1, metadata !"_ZTS1A", metadata !"x", i32 3, i64 32, i64 32, i64 0, i32 0, metadata !7} ; [ DW_TAG_member ] [x] [line 3, size 32, align 32, offset 0] [from int] 53 !7 = metadata !{i32 786468, null, null, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed] 54 !8 = metadata !{i32 786478, metadata !1, metadata !"_ZTS1A", metadata !"f", metadata !"f", metadata !"_ZN1A1fEv", i32 2, metadata !9, i1 false, i1 false, i32 0, i32 0, null, i32 256, i1 true, null, null, i32 0, null, i32 2} ; [ DW_TAG_subprogram ] [line 2] [f] 55 !9 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !10, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ] 56 !10 = metadata !{metadata !7, metadata !11} 57 !11 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 1088, metadata !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS1A] 58 !12 = metadata !{metadata !13} 59 !13 = metadata !{i32 786478, metadata !1, metadata !"_ZTS1A", metadata !"f", metadata !"f", metadata !"_ZN1A1fEv", i32 6, metadata !9, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, i32 (%struct.A*)* @_ZN1A1fEv, null, metadata !8, metadata !14, i32 6} ; [ DW_TAG_subprogram ] [line 6] [def] [f] 60 !14 = metadata !{metadata !15} 61 !15 = metadata !{i32 786689, metadata !13, metadata !"this", null, i32 16777216, metadata !16, i32 1088, i32 0} ; [ DW_TAG_arg_variable ] [this] [line 0] 62 !16 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 0, metadata !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTS1A] 63 !17 = metadata !{i32 2, metadata !"Dwarf Version", i32 4} 64 !18 = metadata !{i32 2, metadata !"Debug Info Version", i32 1} 65 !19 = metadata !{metadata !"clang version 3.5.0 (210251)"} 66 !20 = metadata !{i32 0, i32 0, metadata !13, null} 67 !21 = metadata !{i32 7, i32 0, metadata !13, null} 68
