forked from OSchip/llvm-project
54 lines
3.9 KiB
LLVM
54 lines
3.9 KiB
LLVM
; RUN: llc -O2 %s -o - | FileCheck %s
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; Check struct X for dead variable xyz from inlined function foo.
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; CHECK: DW_TAG_structure_type
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; CHECK-NEXT: info_string
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@i = common global i32 0 ; <i32*> [#uses=2]
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declare void @llvm.dbg.declare(metadata, metadata) nounwind readnone
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declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
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define i32 @bar() nounwind ssp {
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entry:
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%0 = load i32* @i, align 4, !dbg !17 ; <i32> [#uses=2]
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tail call void @llvm.dbg.value(metadata !{i32 %0}, i64 0, metadata !9), !dbg !19
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tail call void @llvm.dbg.declare(metadata !20, metadata !10), !dbg !21
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%1 = mul nsw i32 %0, %0, !dbg !22 ; <i32> [#uses=2]
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store i32 %1, i32* @i, align 4, !dbg !17
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ret i32 %1, !dbg !23
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}
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!llvm.dbg.cu = !{!2}
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!0 = metadata !{i32 786478, metadata !27, metadata !1, metadata !"foo", metadata !"foo", metadata !"", i32 9, metadata !3, i1 true, i1 true, i32 0, i32 0, null, i1 false, i1 true, null, null, null, metadata !24, i32 9} ; [ DW_TAG_subprogram ]
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!1 = metadata !{i32 786473, metadata !27} ; [ DW_TAG_file_type ]
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!2 = metadata !{i32 786449, metadata !27, i32 1, metadata !"4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", i1 true, metadata !"", i32 0, metadata !20, metadata !20, metadata !25, metadata !26, metadata !26, metadata !""} ; [ DW_TAG_compile_unit ]
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!3 = metadata !{i32 786453, metadata !27, metadata !1, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !4, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!4 = metadata !{metadata !5, metadata !5}
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!5 = metadata !{i32 786468, metadata !27, metadata !1, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ]
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!6 = metadata !{i32 786478, metadata !27, metadata !1, metadata !"bar", metadata !"bar", metadata !"bar", i32 14, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i1 false, i1 true, i32 ()* @bar, null, null, null, i32 0} ; [ DW_TAG_subprogram ]
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!7 = metadata !{i32 786453, metadata !27, metadata !1, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !8, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!8 = metadata !{metadata !5}
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!9 = metadata !{i32 786689, metadata !0, metadata !"j", metadata !1, i32 9, metadata !5, i32 0, null} ; [ DW_TAG_arg_variable ]
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!10 = metadata !{i32 786688, metadata !11, metadata !"xyz", metadata !1, i32 10, metadata !12, i32 0, null} ; [ DW_TAG_auto_variable ]
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!11 = metadata !{i32 786443, metadata !1, metadata !0, i32 9, i32 0, i32 0} ; [ DW_TAG_lexical_block ]
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!12 = metadata !{i32 786451, metadata !27, metadata !0, metadata !"X", i32 10, i64 64, i64 32, i64 0, i32 0, null, metadata !13, i32 0, null, null, null} ; [ DW_TAG_structure_type ] [X] [line 10, size 64, align 32, offset 0] [def] [from ]
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!13 = metadata !{metadata !14, metadata !15}
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!14 = metadata !{i32 786445, metadata !27, metadata !12, metadata !"a", i32 10, i64 32, i64 32, i64 0, i32 0, metadata !5} ; [ DW_TAG_member ]
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!15 = metadata !{i32 786445, metadata !27, metadata !12, metadata !"b", i32 10, i64 32, i64 32, i64 32, i32 0, metadata !5} ; [ DW_TAG_member ]
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!16 = metadata !{i32 786484, i32 0, metadata !1, metadata !"i", metadata !"i", metadata !"", metadata !1, i32 5, metadata !5, i1 false, i1 true, i32* @i, null} ; [ DW_TAG_variable ]
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!17 = metadata !{i32 15, i32 0, metadata !18, null}
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!18 = metadata !{i32 786443, metadata !1, metadata !6, i32 14, i32 0, i32 1} ; [ DW_TAG_lexical_block ]
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!19 = metadata !{i32 9, i32 0, metadata !0, metadata !17}
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!20 = metadata !{null}
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!21 = metadata !{i32 9, i32 0, metadata !11, metadata !17}
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!22 = metadata !{i32 11, i32 0, metadata !11, metadata !17}
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!23 = metadata !{i32 16, i32 0, metadata !18, null}
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!24 = metadata !{metadata !9, metadata !10}
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!25 = metadata !{metadata !0, metadata !6}
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!26 = metadata !{metadata !16}
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!27 = metadata !{metadata !"bar.c", metadata !"/tmp/"}
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