forked from OSchip/llvm-project
54 lines
2.6 KiB
LLVM
54 lines
2.6 KiB
LLVM
; RUN: opt -S -loop-reduce %s | FileCheck %s
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;
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; Test that LSR SCEV-based salvaging does not crash when translating SCEVs
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; that contain integers with binary representations greater than 64-bits.
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; Also show that no salvaging attempt is made for dbg.value that are undef
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; pre-LSR.
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;
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; CHECK: call void @llvm.dbg.value(metadata i64 undef, metadata !{{[0-9]+}}, metadata !DIExpression(DW_OP_plus_uconst, 228, DW_OP_stack_value))
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; CHECK: call void @llvm.dbg.value(metadata i64 %var2, metadata !{{[0-9]+}}, metadata !DIExpression(DW_OP_plus_uconst, 228, DW_OP_stack_value))
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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; Function Attrs: nofree nosync nounwind readnone speculatable willreturn
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declare void @llvm.dbg.value(metadata, metadata, metadata)
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; Function Attrs: nounwind
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define hidden void @reproducer() local_unnamed_addr !dbg !5 {
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init:
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%0 = lshr i128 undef, 64
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%var1 = trunc i128 %0 to i64
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%1 = add nuw i64 undef, %var1
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%var2 = lshr i64 %1, 12
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br label %Label_d0
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Label_d0: ; preds = %Label_d0, %init
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%var3 = phi i64 [ %var2, %init ], [ %var4, %Label_d0 ]
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call void @llvm.dbg.value(metadata i64 undef, metadata !11, metadata !DIExpression(DW_OP_plus_uconst, 228, DW_OP_stack_value)), !dbg !12
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call void @llvm.dbg.value(metadata i64 %var2, metadata !11, metadata !DIExpression(DW_OP_plus_uconst, 228, DW_OP_stack_value)), !dbg !12
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%var4 = add i64 %var3, -1
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%var5 = icmp eq i64 %var4, 0
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br i1 %var5, label %Label_1bc, label %Label_d0
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Label_1bc: ; preds = %Label_d0
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ret void
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}
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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_C_plus_plus, file: !1, producer: "frontend", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "source", directory: "")
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!2 = !{}
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!3 = !{i32 2, !"Debug Info Version", i32 3}
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!4 = !{i32 1, !"wchar_size", i32 4}
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!5 = distinct !DISubprogram(name: "reproducer", scope: !1, file: !1, line: 904320, type: !6, scopeLine: 904320, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !10)
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!6 = !DISubroutineType(types: !7)
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!7 = !{null, !8, !9, !9, !9, !9, !9, !9}
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!8 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
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!9 = !DIBasicType(name: "my_type", size: 64, encoding: DW_ATE_unsigned)
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!10 = !{!11}
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!11 = !DILocalVariable(name: "my_var", arg: 1, scope: !5, file: !1, line: 904320, type: !8)
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!12 = !DILocation(line: 904544, scope: !5) |