e7c9a6cae0
EmitSchedule() shouldn't be touching instructions after the provided insertion point. The change introduced in D83561 performs a scan to the end of the block, and thus may move unrelated instructions. In particular, this ends up moving instructions that have been produced by FastISel and will later be deleted. Moving them means that more instructions than intended are removed. Fix this by stopping the iteration when the insertion point is reached. Fixes https://github.com/llvm/llvm-project/issues/53243. Differential Revision: https://reviews.llvm.org/D117489
40 lines
2.1 KiB
LLVM
40 lines
2.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -O0 -fast-isel -mtriple=x86_64-- < %s | FileCheck %s
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define void @test() {
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; CHECK-LABEL: test:
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; CHECK: # %bb.0:
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; CHECK-NEXT: jmp set_state@PLT # TAILCALL
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tail call void @set_state()
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call void @llvm.dbg.value(metadata i64 0, metadata !10, metadata !DIExpression()), !dbg !16
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ret void
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}
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declare void @set_state()
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; Function Attrs: nofree nosync nounwind readnone speculatable willreturn
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declare void @llvm.dbg.value(metadata, metadata, metadata) #0
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attributes #0 = { nofree nosync nounwind readnone speculatable willreturn }
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!llvm.module.flags = !{!0}
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!llvm.dbg.cu = !{!1}
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!0 = !{i32 2, !"Debug Info Version", i32 3}
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!1 = distinct !DICompileUnit(language: DW_LANG_Rust, file: !2, producer: "clang LLVM (rustc version 1.60.0-nightly (ec4bcaac4 2022-01-15))", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !3)
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!2 = !DIFile(filename: "src/lib.rs/@/bug.63e521cd-cgu.0", directory: "/tmp/rust-bug")
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!3 = !{!4}
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!4 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "Option", file: !5, baseType: !6, size: 8, align: 8, flags: DIFlagEnumClass, elements: !7)
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!5 = !DIFile(filename: "<unknown>", directory: "")
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!6 = !DIBasicType(name: "u8", size: 8, encoding: DW_ATE_unsigned)
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!7 = !{!8, !9}
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!8 = !DIEnumerator(name: "None", value: 0)
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!9 = !DIEnumerator(name: "Some", value: 1)
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!10 = !DILocalVariable(name: "msg", arg: 2, scope: !11, file: !12, line: 689, type: !6)
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!11 = distinct !DISubprogram(name: "expect<()>", linkageName: "_ZN4core6option15Option$LT$T$GT$6expect17h9a574c18f194c213E", scope: !4, file: !12, line: 689, type: !13, scopeLine: 689, flags: DIFlagPrototyped, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition | DISPFlagOptimized, unit: !1, templateParams: !15, retainedNodes: !15)
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!12 = !DIFile(filename: "/rustc/ec4bcaac450279b029f3480b8b8f1b82ab36a5eb/library/core/src/option.rs", directory: "", checksumkind: CSK_MD5, checksum: "4120c8557937a0772190a676ec193800")
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!13 = !DISubroutineType(types: !14)
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!14 = !{null, !4}
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!15 = !{}
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!16 = !DILocation(line: 0, scope: !11)
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