forked from OSchip/llvm-project
66 lines
2.5 KiB
LLVM
66 lines
2.5 KiB
LLVM
; RUN: llc -filetype=obj %s -o - | llvm-dwarfdump - | FileCheck %s
|
|
;
|
|
; Generated at -Os from:
|
|
; void *foo(void *dst);
|
|
; void start() {
|
|
; unsigned size;
|
|
; foo(&size);
|
|
; if (size != 0) { // Work around a bug to preserve the dbg.value.
|
|
; }
|
|
; }
|
|
|
|
; ModuleID = 'test1.cpp'
|
|
target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
|
|
target triple = "arm64-apple-ios"
|
|
|
|
; Function Attrs: nounwind optsize
|
|
define void @_Z5startv() #0 !dbg !4 {
|
|
entry:
|
|
%size = alloca i32, align 4
|
|
%0 = bitcast i32* %size to i8*, !dbg !15
|
|
%call = call i8* @_Z3fooPv(i8* %0) #3, !dbg !15
|
|
call void @llvm.dbg.value(metadata i32* %size, i64 0, metadata !10, metadata !16), !dbg !17
|
|
; CHECK: .debug_info contents:
|
|
; CHECK: DW_TAG_variable
|
|
; CHECK-NEXT: DW_AT_location
|
|
; CHECK-NEXT: DW_AT_name {{.*}}"size"
|
|
; CHECK: .debug_loc contents:
|
|
; Expecting the encoding for sp+12: DW_OP_breg31 0c
|
|
; CHECK: Location description: 8f 0c
|
|
ret void, !dbg !18
|
|
}
|
|
|
|
; Function Attrs: optsize
|
|
declare i8* @_Z3fooPv(i8*) #1
|
|
|
|
; Function Attrs: nounwind readnone
|
|
declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #2
|
|
|
|
attributes #0 = { nounwind optsize }
|
|
attributes #1 = { optsize }
|
|
attributes #2 = { nounwind readnone }
|
|
attributes #3 = { nounwind optsize }
|
|
|
|
!llvm.dbg.cu = !{!0}
|
|
!llvm.module.flags = !{!12, !13}
|
|
!llvm.ident = !{!14}
|
|
|
|
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.6.0 (trunk 223149) (llvm/trunk 223115)", isOptimized: true, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
|
|
!1 = !DIFile(filename: "<stdin>", directory: "")
|
|
!2 = !{}
|
|
!4 = distinct !DISubprogram(name: "start", linkageName: "_Z5startv", line: 2, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 3, file: !5, scope: !6, type: !7, variables: !9)
|
|
!5 = !DIFile(filename: "test1.c", directory: "")
|
|
!6 = !DIFile(filename: "test1.c", directory: "")
|
|
!7 = !DISubroutineType(types: !8)
|
|
!8 = !{null}
|
|
!9 = !{!10}
|
|
!10 = !DILocalVariable(name: "size", line: 4, scope: !4, file: !6, type: !11)
|
|
!11 = !DIBasicType(tag: DW_TAG_base_type, name: "unsigned int", size: 32, align: 32, encoding: DW_ATE_unsigned)
|
|
!12 = !{i32 2, !"Dwarf Version", i32 2}
|
|
!13 = !{i32 2, !"Debug Info Version", i32 3}
|
|
!14 = !{!"clang version 3.6.0 (trunk 223149) (llvm/trunk 223115)"}
|
|
!15 = !DILocation(line: 5, column: 3, scope: !4)
|
|
!16 = !DIExpression(DW_OP_deref)
|
|
!17 = !DILocation(line: 4, column: 12, scope: !4)
|
|
!18 = !DILocation(line: 8, column: 1, scope: !4)
|