1 ; RUN: llc -mtriple=x86_64-linux-gnu -filetype=asm %s -o - | FileCheck %s
3 ; The prologue-end line record must be emitted after the last instruction that
4 ; is part of the function frame setup code and before the instruction that marks
5 ; the beginning of the function body.
7 ; For the given test, generated from:
9 ; 1 extern int get_arg();
10 ; 2 extern void func(int x);
19 ; The prologue-end line record is emitted with an incorrect associated address,
20 ; which causes a debugger to show the beginning of function body to be inside
23 ; This can be seen in the following trimmed assembler output:
28 ; .loc 1 7 0 prologue_end
30 ; .cfi_def_cfa_offset 16
35 ; The instruction 'pushq %rax' is part of the frame setup code.
37 ; The correct location for the prologue-end line information is just before
38 ; the call to '_Z7get_argv', as illustrated in the following trimmed
45 ; .cfi_def_cfa_offset 16
46 ; .loc 1 7 0 prologue_end
51 ; Check that the generated assembler matches the following sequence:
54 ; CHECK-NEXT: pushq %rax
55 ; CHECK-NEXT: .cfi_def_cfa_offset 16
57 ; CHECK-NEXT: .loc 1 7 8 prologue_end {{.*}}# invalid-prologue-end.cpp:7:8
58 ; CHECK-NEXT: callq _Z7get_argv
60 define i32 @main() #0 !dbg !7 {
62 %a = alloca i32, align 4
63 call void @llvm.dbg.declare(metadata i32* %a, metadata !11, metadata !DIExpression()), !dbg !12
64 %call = call i32 @_Z7get_argv(), !dbg !13
65 call void @_Z4funci(i32 %call), !dbg !14
69 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
70 declare void @_Z4funci(i32) #2
71 declare i32 @_Z7get_argv() #2
74 !llvm.module.flags = !{!3, !4, !5}
77 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 7.0.0 (trunk 322269)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
78 !1 = !DIFile(filename: "invalid-prologue-end.cpp", directory: "/home/carlos/llvm-root/work")
80 !3 = !{i32 2, !"Dwarf Version", i32 4}
81 !4 = !{i32 2, !"Debug Info Version", i32 3}
82 !5 = !{i32 1, !"wchar_size", i32 4}
83 !6 = !{!"clang version 7.0.0 (trunk 322269)"}
84 !7 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 4, type: !8, isLocal: false, isDefinition: true, scopeLine: 5, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
85 !8 = !DISubroutineType(types: !9)
87 !10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
88 !11 = !DILocalVariable(name: "a", scope: !7, file: !1, line: 6, type: !10)
89 !12 = !DILocation(line: 6, column: 7, scope: !7)
90 !13 = !DILocation(line: 7, column: 8, scope: !7)
91 !14 = !DILocation(line: 7, column: 3, scope: !7)
92 !15 = !DILocation(line: 8, column: 1, scope: !7)