48 lines
2.6 KiB
LLVM
48 lines
2.6 KiB
LLVM
; RUN: opt -passes=sroa -S %s -o - \
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; RUN: | FileCheck %s --implicit-check-not="call void @llvm.dbg"
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; RUN: opt --try-experimental-debuginfo-iterators -passes=sroa -S %s -o - \
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; RUN: | FileCheck %s --implicit-check-not="call void @llvm.dbg"
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;; Check that sroa removes redundant debug intrinsics after it makes a
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;; change. This has a significant positive impact on peak memory and compiler
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;; run time.
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; CHECK: @llvm.dbg.assign(metadata i32 1
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define dso_local void @_Z3funv() local_unnamed_addr !dbg !7 {
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entry:
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%sroa-remove-me = alloca i32
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call void @llvm.dbg.assign(metadata i32 undef, metadata !11, metadata !DIExpression(), metadata !13, metadata ptr undef, metadata !DIExpression()), !dbg !14
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call void @_Z3extv(), !dbg !15
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call void @llvm.dbg.assign(metadata i32 0, metadata !11, metadata !DIExpression(), metadata !13, metadata ptr undef, metadata !DIExpression()), !dbg !14
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call void @llvm.dbg.assign(metadata i32 1, metadata !11, metadata !DIExpression(), metadata !13, metadata ptr undef, metadata !DIExpression()), !dbg !14
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ret void, !dbg !16
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}
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declare !dbg !17 dso_local void @_Z3extv() local_unnamed_addr
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declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata)
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!2, !3, !4, !5, !1000}
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!llvm.ident = !{!6}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 14.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None)
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!1 = !DIFile(filename: "test.cpp", directory: "/")
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!2 = !{i32 7, !"Dwarf Version", i32 5}
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!3 = !{i32 2, !"Debug Info Version", i32 3}
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!4 = !{i32 1, !"wchar_size", i32 4}
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!5 = !{i32 7, !"uwtable", i32 1}
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!6 = !{!"clang version 14.0.0)"}
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!7 = distinct !DISubprogram(name: "fun", linkageName: "_Z3funv", scope: !1, file: !1, line: 2, type: !8, scopeLine: 2, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !10)
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!8 = !DISubroutineType(types: !9)
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!9 = !{null}
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!10 = !{!11}
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!11 = !DILocalVariable(name: "a", scope: !7, file: !1, line: 2, type: !12)
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!12 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!13 = distinct !DIAssignID()
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!14 = !DILocation(line: 0, scope: !7)
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!15 = !DILocation(line: 2, column: 25, scope: !7)
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!16 = !DILocation(line: 2, column: 32, scope: !7)
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!17 = !DISubprogram(name: "ext", linkageName: "_Z3extv", scope: !1, file: !1, line: 1, type: !8, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !18)
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!18 = !{}
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!1000 = !{i32 7, !"debug-info-assignment-tracking", i1 true}
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