forked from OSchip/llvm-project
66 lines
2.4 KiB
LLVM
66 lines
2.4 KiB
LLVM
; RUN: llc -filetype=obj %s -o - | llvm-dwarfdump - | FileCheck %s
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;
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; Generated at -Os from:
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; void *foo(void *dst);
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; void start() {
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; unsigned size;
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; foo(&size);
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; if (size != 0) { // Work around a bug to preserve the dbg.value.
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; }
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; }
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; ModuleID = 'test1.cpp'
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target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
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target triple = "arm64-apple-ios"
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; Function Attrs: nounwind optsize
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define void @_Z5startv() #0 {
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entry:
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%size = alloca i32, align 4
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%0 = bitcast i32* %size to i8*, !dbg !15
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%call = call i8* @_Z3fooPv(i8* %0) #3, !dbg !15
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call void @llvm.dbg.value(metadata i32* %size, i64 0, metadata !10, metadata !16), !dbg !17
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; CHECK: .debug_info contents:
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; CHECK: DW_TAG_variable
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; CHECK-NEXT: DW_AT_location
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; CHECK-NEXT: DW_AT_name {{.*}}"size"
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; CHECK: .debug_loc contents:
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; CHECK: Location description: 70 00
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ret void, !dbg !18
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}
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; Function Attrs: optsize
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declare i8* @_Z3fooPv(i8*) #1
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #2
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attributes #0 = { nounwind optsize }
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attributes #1 = { optsize }
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attributes #2 = { nounwind readnone }
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attributes #3 = { nounwind optsize }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!12, !13}
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!llvm.ident = !{!14}
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!0 = !{!"0x11\004\00clang version 3.6.0 (trunk 223149) (llvm/trunk 223115)\001\00\000\00\001", !1, !2, !2, !3, !2, !2} ; [ DW_TAG_compile_unit ] [<stdin>] [DW_LANG_C_plus_plus]
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!1 = !{!"<stdin>", !""}
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!2 = !{}
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!3 = !{!4}
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!4 = !{!"0x2e\00start\00start\00_Z5startv\002\000\001\000\000\00256\001\003", !5, !6, !7, null, void ()* @_Z5startv, null, null, !9} ; [ DW_TAG_subprogram ] [line 2] [def] [scope 3] [start]
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!5 = !{!"test1.c", !""}
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!6 = !{!"0x29", !5} ; [ DW_TAG_file_type ] [/test1.c]
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!7 = !{!"0x15\00\000\000\000\000\000\000", null, null, null, !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!8 = !{null}
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!9 = !{!10}
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!10 = !{!"0x100\00size\004\000", !4, !6, !11} ; [ DW_TAG_auto_variable ] [size] [line 4]
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!11 = !{!"0x24\00unsigned int\000\0032\0032\000\000\007", null, null} ; [ DW_TAG_base_type ] [unsigned int] [line 0, size 32, align 32, offset 0, enc DW_ATE_unsigned]
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!12 = !{i32 2, !"Dwarf Version", i32 2}
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!13 = !{i32 2, !"Debug Info Version", i32 2}
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!14 = !{!"clang version 3.6.0 (trunk 223149) (llvm/trunk 223115)"}
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!15 = !{i32 5, i32 3, !4, null}
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!16 = !{!"0x102"} ; [ DW_TAG_expression ]
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!17 = !{i32 4, i32 12, !4, null}
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!18 = !{i32 8, i32 1, !4, null}
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