; 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 { 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: ; CHECK: Location description: 70 00 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 = metadata !{metadata !"0x11\004\00clang version 3.6.0 (trunk 223149) (llvm/trunk 223115)\001\00\000\00\001", metadata !1, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [] [DW_LANG_C_plus_plus] !1 = metadata !{metadata !"", metadata !""} !2 = metadata !{} !3 = metadata !{metadata !4} !4 = metadata !{metadata !"0x2e\00start\00start\00_Z5startv\002\000\001\000\000\00256\001\003", metadata !5, metadata !6, metadata !7, null, void ()* @_Z5startv, null, null, metadata !9} ; [ DW_TAG_subprogram ] [line 2] [def] [scope 3] [start] !5 = metadata !{metadata !"test1.c", metadata !""} !6 = metadata !{metadata !"0x29", metadata !5} ; [ DW_TAG_file_type ] [/test1.c] !7 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", null, null, null, metadata !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ] !8 = metadata !{null} !9 = metadata !{metadata !10} !10 = metadata !{metadata !"0x100\00size\004\000", metadata !4, metadata !6, metadata !11} ; [ DW_TAG_auto_variable ] [size] [line 4] !11 = metadata !{metadata !"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] !12 = metadata !{i32 2, metadata !"Dwarf Version", i32 2} !13 = metadata !{i32 2, metadata !"Debug Info Version", i32 2} !14 = metadata !{metadata !"clang version 3.6.0 (trunk 223149) (llvm/trunk 223115)"} !15 = metadata !{i32 5, i32 3, metadata !4, null} !16 = metadata !{metadata !"0x102"} ; [ DW_TAG_expression ] !17 = metadata !{i32 4, i32 12, metadata !4, null} !18 = metadata !{i32 8, i32 1, metadata !4, null}