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28 lines
1.9 KiB
28 lines
1.9 KiB
; RUN: llc -filetype=asm < %s | FileCheck %s
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target triple = "thumbv7-apple-ios7.0.0"
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%class.Matrix3.0.6.10 = type { [9 x float] }
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define arm_aapcscc void @_Z9GetMatrixv(%class.Matrix3.0.6.10* noalias nocapture sret(%class.Matrix3.0.6.10) %agg.result) #0 !dbg !39 {
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br i1 fcmp oeq (float fadd (float fadd (float fmul (float undef, float undef), float fmul (float undef, float undef)), float fmul (float undef, float undef)), float 0.000000e+00), label %_ZN7Vector39NormalizeEv.exit, label %1
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tail call arm_aapcscc void @_ZL4Sqrtd() #3
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br label %_ZN7Vector39NormalizeEv.exit
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_ZN7Vector39NormalizeEv.exit: ; preds = %1, %0
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; rdar://problem/15094721.
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;
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; When this (partially) dead use gets eliminated (and thus the def
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; of the vreg holding %agg.result) the dbg_value becomes dangling
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; and SelectionDAGISel crashes. It should definitely not
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; crash. Drop the dbg_value instead.
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; CHECK-NOT: "matrix"
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tail call void @llvm.dbg.declare(metadata %class.Matrix3.0.6.10* %agg.result, metadata !45, metadata !DIExpression())
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%2 = getelementptr inbounds %class.Matrix3.0.6.10, %class.Matrix3.0.6.10* %agg.result, i32 0, i32 0, i32 8
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ret void
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}
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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declare arm_aapcscc void @_ZL4Sqrtd() #2
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!4 = !DICompositeType(tag: DW_TAG_class_type, name: "Matrix3", line: 20, size: 288, align: 32, file: !5, identifier: "_ZTS7Matrix3")
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!5 = !DIFile(filename: "test.ii", directory: "/Volumes/Data/radar/15094721")
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!39 = distinct !DISubprogram(name: "GetMatrix", linkageName: "_Z9GetMatrixv", line: 32, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 32, file: !5, scope: !40, type: !41)
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!40 = !DIFile(filename: "test.ii", directory: "/Volumes/Data/radar/15094721")
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!41 = !DISubroutineType(types: null)
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!45 = !DILocalVariable(name: "matrix", line: 35, scope: !39, file: !40, type: !4)
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