4424903156
This patch updates the last few places in LLVM using findDbgValues that don't also collect and handle DPValue objects. This largely involves instcombine and mem2reg changes, and are largely mechanical, calling existing utilities on collections of DPValues instead of just DbgValuesInsts. A variety of tests have had RemoveDIs RUN lines added to them to cover these behaviours. We have some technical debt of the instcombine sinking code for DPValues not being implemented yet, so I've left FIXME stubs indicating that we intend to cover tests with RemoveDIs but haven't yet.
50 lines
2.2 KiB
LLVM
50 lines
2.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; dbg.value intrinsics should not affect peephole combining of stacksave/stackrestore.
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; PR37713
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; RUN: opt -passes=instcombine %s -S | FileCheck %s
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; RUN: opt -passes=instcombine %s -S --try-experimental-debuginfo-iterators | FileCheck %s
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declare ptr @llvm.stacksave() #0
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declare void @llvm.stackrestore(ptr) #0
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define ptr @test1(i32 %P) !dbg !6 {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: call void @llvm.dbg.value(metadata ptr poison
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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 ptr [[A]]
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; CHECK-NEXT: ret ptr [[A]], !dbg !14
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;
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%tmp = call ptr @llvm.stacksave(), !dbg !12
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call void @llvm.dbg.value(metadata ptr %tmp, metadata !9, metadata !DIExpression()), !dbg !12
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call void @llvm.stackrestore(ptr %tmp), !dbg !13
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%A = alloca i32, i32 %P, !dbg !14
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call void @llvm.dbg.value(metadata ptr %A, metadata !11, metadata !DIExpression()), !dbg !14
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ret ptr %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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