derek.holloway
7502bf64a4
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101 lines
4.2 KiB
LLVM
101 lines
4.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=instcombine -S | FileCheck %s
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declare void @llvm.dbg.declare(metadata, metadata, metadata)
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declare void @llvm.lifetime.start.p0(ptr nocapture)
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declare void @llvm.lifetime.end.p0(ptr nocapture)
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declare void @foo(ptr nocapture, ptr nocapture)
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define void @bar(i1 %flag) #0 !dbg !4 {
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; CHECK-LABEL: @bar(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TEXT:%.*]] = alloca [1 x i8], align 1
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; CHECK-NEXT: [[BUFF:%.*]] = alloca [1 x i8], align 1
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; CHECK-NEXT: br i1 [[FLAG:%.*]], label [[IF:%.*]], label [[ELSE:%.*]]
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; CHECK: if:
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; CHECK-NEXT: br label [[BB2:%.*]]
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; CHECK: bb2:
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; CHECK-NEXT: br label [[BB3:%.*]]
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; CHECK: bb3:
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; CHECK-NEXT: #dbg_declare(ptr [[TEXT]], [[META16:![0-9]+]], !DIExpression(), [[META24:![0-9]+]])
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; CHECK-NEXT: br label [[FIN:%.*]]
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; CHECK: else:
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; CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr nonnull [[TEXT]])
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; CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr nonnull [[BUFF]])
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; CHECK-NEXT: call void @foo(ptr nonnull [[BUFF]], ptr nonnull [[TEXT]])
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; CHECK-NEXT: call void @llvm.lifetime.end.p0(ptr nonnull [[BUFF]])
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; CHECK-NEXT: call void @llvm.lifetime.end.p0(ptr nonnull [[TEXT]])
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; CHECK-NEXT: br label [[FIN]]
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; CHECK: fin:
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; CHECK-NEXT: ret void
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;
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entry:
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%text = alloca [1 x i8], align 1
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%buff = alloca [1 x i8], align 1
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br i1 %flag, label %if, label %else
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if:
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call void @llvm.lifetime.start.p0(ptr %text)
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call void @llvm.lifetime.start.p0(ptr %buff)
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call void @llvm.lifetime.end.p0(ptr %buff)
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call void @llvm.lifetime.end.p0(ptr %text)
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br label %bb2
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bb2:
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call void @llvm.lifetime.start.p0(ptr %text)
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call void @llvm.lifetime.start.p0(ptr %buff)
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call void @llvm.lifetime.end.p0(ptr %text)
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call void @llvm.lifetime.end.p0(ptr %buff)
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br label %bb3
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bb3:
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call void @llvm.lifetime.start.p0(ptr %text)
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call void @llvm.dbg.declare(metadata ptr %text, metadata !14, metadata !25), !dbg !26
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call void @llvm.lifetime.end.p0(ptr %text)
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br label %fin
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else:
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call void @llvm.lifetime.start.p0(ptr %text)
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call void @llvm.lifetime.start.p0(ptr %buff)
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call void @foo(ptr %buff, ptr %text)
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call void @llvm.lifetime.end.p0(ptr %buff)
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call void @llvm.lifetime.end.p0(ptr %text)
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br label %fin
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fin:
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ret void
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}
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attributes #0 = { null_pointer_is_valid }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!22, !23}
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!llvm.ident = !{!24}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.8.0 (trunk 248826) (llvm/trunk 248827)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "test.cpp", directory: "/home/user")
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!2 = !{}
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!4 = distinct !DISubprogram(name: "bar", linkageName: "bar", scope: !1, file: !1, line: 2, type: !5, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !8)
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!5 = !DISubroutineType(types: !6)
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!6 = !{null, !7}
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!7 = !DIBasicType(name: "bool", size: 8, align: 8, encoding: DW_ATE_boolean)
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!8 = !{!9, !11, !12, !14, !21}
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!9 = !DILocalVariable(name: "Size", arg: 1, scope: !4, file: !1, line: 2, type: !10)
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!10 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!11 = !DILocalVariable(name: "flag", arg: 2, scope: !4, file: !1, line: 2, type: !7)
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!12 = !DILocalVariable(name: "i", scope: !13, file: !1, line: 3, type: !10)
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!13 = distinct !DILexicalBlock(scope: !4, file: !1, line: 3, column: 3)
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!14 = !DILocalVariable(name: "text", scope: !15, file: !1, line: 4, type: !17)
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!15 = distinct !DILexicalBlock(scope: !16, file: !1, line: 3, column: 30)
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!16 = distinct !DILexicalBlock(scope: !13, file: !1, line: 3, column: 3)
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!17 = !DICompositeType(tag: DW_TAG_array_type, baseType: !18, size: 8, align: 8, elements: !19)
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!18 = !DIBasicType(name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)
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!19 = !{!20}
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!20 = !DISubrange(count: 1)
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!21 = !DILocalVariable(name: "buff", scope: !15, file: !1, line: 5, type: !17)
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!22 = !{i32 2, !"Dwarf Version", i32 4}
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!23 = !{i32 2, !"Debug Info Version", i32 3}
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!24 = !{!"clang version 3.8.0 (trunk 248826) (llvm/trunk 248827)"}
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!25 = !DIExpression()
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!26 = !DILocation(line: 4, column: 10, scope: !15)
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