74 lines
2.9 KiB
LLVM
74 lines
2.9 KiB
LLVM
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; RUN: llc -mtriple mips64-unknown-freebsd12.0 -relocation-model pic -mcpu=mips4 -target-abi n64 -O2 -verify-machineinstrs -o - %s
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; Test that the long branch pass does not crash due to the control flow
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; optimizer producing malformed basic block operands due to the backend
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; failing to handle debug information around branch instructions.
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define void @f() !dbg !5 {
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entry:
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%cmp = icmp eq i32 undef, 0, !dbg !16
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%conv = zext i1 %cmp to i32, !dbg !16
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tail call void @llvm.dbg.value(metadata i32 %conv, metadata !11, metadata !DIExpression()), !dbg !17
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%tobool = icmp eq i32 undef, 0, !dbg !18
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br i1 %tobool, label %if.end, label %cleanup7.critedge, !dbg !21
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if.end: ; preds = %entry
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%call6 = call i32 bitcast (i32 (...)* @j to i32 (i32)*)(i32 signext %conv)
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#4, !dbg !22
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br label %cleanup7, !dbg !23
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cleanup7.critedge: ; preds = %entry
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call void @llvm.lifetime.end.p0i8(i64 4, i8* nonnull undef) #4, !dbg !24
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br label %cleanup7
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cleanup7: ; preds = %cleanup7.critedge,
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ret void
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}
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declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture) #1
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declare i32 @j(...)
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declare void @llvm.dbg.value(metadata, metadata, metadata) #3
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attributes #1 = { argmemonly nounwind }
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attributes #3 = { nounwind readnone speculatable }
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attributes #4 = { nounwind }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang
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version 6.0.0", isOptimized: true, runtimeVersion:
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0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename:
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"/tmp//<stdin>", directory:
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"/tmp/")
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!2 = !{}
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!3 = !{i32 2, !"Debug Info Version", i32 3}
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!4 = !{i32 7, !"PIC Level", i32 2}
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!5 = distinct !DISubprogram(name: "f", scope: !6, file: !6, line: 8, type: !7,
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isLocal: false, isDefinition: true, scopeLine: 8, isOptimized: true, unit: !0,
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retainedNodes: !10)
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!6 = !DIFile(filename:
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"/tmp/test.c",
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directory: "/tmp")
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!7 = !DISubroutineType(types: !8)
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!8 = !{!9}
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!9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!10 = !{!11, !12, !14}
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!11 = !DILocalVariable(name: "e", scope: !5, file: !6, line: 9, type: !9)
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!12 = !DILocalVariable(name: "g", scope: !13, file: !6, line: 11, type: !9)
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!13 = distinct !DILexicalBlock(scope: !5, file: !6, line: 10, column: 3)
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!14 = !DILocalVariable(name: "d", scope: !13, file: !6, line: 12, type: !15)
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!15 = !DIDerivedType(tag: DW_TAG_typedef, name: "a", file: !6, line: 2,
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baseType: !9)
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!16 = !DILocation(line: 9, column: 15, scope: !5)
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!17 = !DILocation(line: 9, column: 7, scope: !5)
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!18 = !DILocation(line: 12, column: 5, scope: !19)
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!19 = distinct !DILexicalBlock(scope: !20, file: !6, line: 12, column: 5)
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!20 = distinct !DILexicalBlock(scope: !5, file: !6, line: 10, column: 3)
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!21 = !DILocation(line: 12, column: 5, scope: !20)
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!22 = !DILocation(line: 16, column: 3, scope: !5)
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!23 = !DILocation(line: 17, column: 1, scope: !5)
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!24 = !DILocation(line: 15, column: 3, scope: !5)
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