50 lines
1.6 KiB
LLVM
50 lines
1.6 KiB
LLVM
; RUN: llc -O2 -o %t1.o < %s
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; RUN: llc -O2 -o %t2.o < %s
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; RUN: llc -O2 -o %t3.o < %s
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; RUN: llc -O2 -o %t4.o < %s
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; RUN: llc -O2 -o %t5.o < %s
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; RUN: cmp %t1.o %t2.o
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; RUN: cmp %t1.o %t3.o
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; RUN: cmp %t1.o %t4.o
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; RUN: cmp %t1.o %t5.o
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; Regression test for nondeterminism introduced in https://reviews.llvm.org/D57694
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define void @test(i32 %x) !dbg !4 {
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entry:
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call void @llvm.dbg.value(metadata void (i32)* @f1, metadata !6, metadata !DIExpression()), !dbg !8
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call void @llvm.dbg.value(metadata void (i32)* @f2, metadata !7, metadata !DIExpression()), !dbg !8
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%cmp = icmp eq i32 %x, 0, !dbg !8
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br i1 %cmp, label %cleanup, label %if.end
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if.end:
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%tobool = icmp eq i32 0, 0
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%a = select i1 %tobool, void (i32)* @f1, void (i32)* null, !dbg !8
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%b = select i1 %tobool, void (i32)* @f2, void (i32)* null, !dbg !8
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call void %a(i32 %x)
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call void %b(i32 %x)
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unreachable
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cleanup:
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ret void
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}
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declare void @f1(i32)
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declare void @f2(i32)
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declare void @llvm.dbg.value(metadata, metadata, metadata)
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang", runtimeVersion: 0, emissionKind: FullDebug)
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!1 = !DIFile(filename: "test.cc", directory: "")
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!2 = !{}
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!3 = !{i32 2, !"Debug Info Version", i32 3}
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!4 = distinct !DISubprogram(name: "test", scope: !1, file: !1, type: !5, unit: !0)
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!5 = !DISubroutineType(types: !2)
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!6 = !DILocalVariable(name: "a", scope: !4, file: !1, type: !9)
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!7 = !DILocalVariable(name: "b", scope: !4, file: !1, type: !9)
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!8 = !DILocation(scope: !4)
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!9 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !5, size: 64)
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