forked from OSchip/llvm-project
49 lines
2.1 KiB
LLVM
49 lines
2.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; dbg.value instrinsics should not affect peephole combining of stacksave/stackrestore.
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; PR37713
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; RUN: opt -instcombine %s -S | FileCheck %s
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declare i8* @llvm.stacksave() #0
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declare void @llvm.stackrestore(i8*) #0
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define i32* @test1(i32 %P) !dbg !6 {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: call void @llvm.dbg.value(metadata i8* undef
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; CHECK-NEXT: [[TMP1:%.*]] = zext i32 [[P:%.*]] to i64, !dbg !13
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; CHECK-NEXT: [[A:%.*]] = alloca i32, i64 [[TMP1]], align 4, !dbg !13
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; CHECK-NEXT: call void @llvm.dbg.value(metadata i32* [[A]]
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; CHECK-NEXT: ret i32* [[A]], !dbg !14
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;
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%tmp = call i8* @llvm.stacksave(), !dbg !12
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call void @llvm.dbg.value(metadata i8* %tmp, metadata !9, metadata !DIExpression()), !dbg !12
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call void @llvm.stackrestore(i8* %tmp), !dbg !13
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%A = alloca i32, i32 %P, !dbg !14
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call void @llvm.dbg.value(metadata i32* %A, metadata !11, metadata !DIExpression()), !dbg !14
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ret i32* %A, !dbg !15
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}
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declare void @llvm.dbg.value(metadata, metadata, metadata) #1
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attributes #0 = { nounwind }
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attributes #1 = { nounwind readnone speculatable }
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!llvm.dbg.cu = !{!0}
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!llvm.debugify = !{!3, !4}
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!llvm.module.flags = !{!5}
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!0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "patatino.ll", directory: "/")
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!2 = !{}
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!3 = !{i32 4}
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!4 = !{i32 2}
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!5 = !{i32 2, !"Debug Info Version", i32 3}
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!6 = distinct !DISubprogram(name: "test1", linkageName: "test1", scope: null, file: !1, line: 1, type: !7, isLocal: false, isDefinition: true, scopeLine: 1, isOptimized: true, unit: !0, retainedNodes: !8)
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!7 = !DISubroutineType(types: !2)
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!8 = !{!9, !11}
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!9 = !DILocalVariable(name: "1", scope: !6, file: !1, line: 1, type: !10)
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!10 = !DIBasicType(name: "ty64", size: 64, encoding: DW_ATE_unsigned)
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!11 = !DILocalVariable(name: "2", scope: !6, file: !1, line: 3, type: !10)
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!12 = !DILocation(line: 1, column: 1, scope: !6)
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!13 = !DILocation(line: 2, column: 1, scope: !6)
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!14 = !DILocation(line: 3, column: 1, scope: !6)
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!15 = !DILocation(line: 4, column: 1, scope: !6)
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