95 lines
4.5 KiB
LLVM
95 lines
4.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -passes=simplifycfg < %s | FileCheck %s
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;; Test that we correct clone debug-info when folding in
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;; FoldCondBranchOnValueKnownInPredecessorImpl. There should be two paths
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;; through this program, assigning [0 1 2 3 4 5 6 7] to the variable down
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;; one path, and [0 1 2 3 6 7] down the other.
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declare void @foo()
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declare void @bar()
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declare void @use.i1(i1)
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declare void @use.i32(i32)
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declare void @llvm.dbg.value(metadata, metadata, metadata)
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define void @test_phi_extra_use(i1 %c) {
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; CHECK-LABEL: @test_phi_extra_use(
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; CHECK-NEXT: br i1 [[C:%.*]], label [[IF:%.*]], label [[ELSE:%.*]]
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; CHECK: if:
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; CHECK-NEXT: call void @foo()
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; CHECK-NEXT: call void @llvm.dbg.value(metadata i32 0, metadata [[META7:![0-9]+]], metadata !DIExpression()), !dbg [[DBG13:![0-9]+]]
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; CHECK-NEXT: call void @llvm.dbg.value(metadata i32 1, metadata [[META7]], metadata !DIExpression()), !dbg [[DBG13]]
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; CHECK-NEXT: call void @use.i1(i1 true)
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; CHECK-NEXT: call void @llvm.dbg.value(metadata i32 2, metadata [[META7]], metadata !DIExpression()), !dbg [[DBG13]]
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; CHECK-NEXT: call void @llvm.dbg.value(metadata i32 3, metadata [[META7]], metadata !DIExpression()), !dbg [[DBG13]]
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; CHECK-NEXT: call void @foo()
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; CHECK-NEXT: br label [[JOIN2:%.*]]
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; CHECK: else:
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; CHECK-NEXT: call void @bar()
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; CHECK-NEXT: call void @llvm.dbg.value(metadata i32 0, metadata [[META7]], metadata !DIExpression()), !dbg [[DBG13]]
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; CHECK-NEXT: call void @llvm.dbg.value(metadata i32 1, metadata [[META7]], metadata !DIExpression()), !dbg [[DBG13]]
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; CHECK-NEXT: call void @use.i1(i1 false)
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; CHECK-NEXT: call void @llvm.dbg.value(metadata i32 2, metadata [[META7]], metadata !DIExpression()), !dbg [[DBG13]]
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; CHECK-NEXT: call void @llvm.dbg.value(metadata i32 3, metadata [[META7]], metadata !DIExpression()), !dbg [[DBG13]]
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; CHECK-NEXT: call void @llvm.dbg.value(metadata i32 4, metadata [[META7]], metadata !DIExpression()), !dbg [[DBG13]]
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; CHECK-NEXT: call void @llvm.dbg.value(metadata i32 5, metadata [[META7]], metadata !DIExpression()), !dbg [[DBG13]]
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; CHECK-NEXT: call void @bar()
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; CHECK-NEXT: br label [[JOIN2]]
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; CHECK: join2:
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; CHECK-NEXT: call void @llvm.dbg.value(metadata i32 6, metadata [[META7]], metadata !DIExpression()), !dbg [[DBG13]]
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; CHECK-NEXT: call void @llvm.dbg.value(metadata i32 7, metadata [[META7]], metadata !DIExpression()), !dbg [[DBG13]]
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; CHECK-NEXT: ret void, !dbg [[DBG13]]
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;
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br i1 %c, label %if, label %else
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if:
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call void @foo()
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br label %join
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else:
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call void @bar()
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br label %join
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join:
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%c2 = phi i1 [ true, %if ], [ false, %else ]
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call void @llvm.dbg.value(metadata i32 0, metadata !12, metadata !DIExpression()), !dbg !15
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call void @llvm.dbg.value(metadata i32 1, metadata !12, metadata !DIExpression()), !dbg !15
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call void @use.i1(i1 %c2)
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call void @llvm.dbg.value(metadata i32 2, metadata !12, metadata !DIExpression()), !dbg !15
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call void @llvm.dbg.value(metadata i32 3, metadata !12, metadata !DIExpression()), !dbg !15
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br i1 %c2, label %if2, label %else2
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if2:
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call void @foo()
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br label %join2
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else2:
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call void @llvm.dbg.value(metadata i32 4, metadata !12, metadata !DIExpression()), !dbg !15
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call void @llvm.dbg.value(metadata i32 5, metadata !12, metadata !DIExpression()), !dbg !15
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call void @bar()
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br label %join2
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join2:
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call void @llvm.dbg.value(metadata i32 6, metadata !12, metadata !DIExpression()), !dbg !15
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call void @llvm.dbg.value(metadata i32 7, metadata !12, metadata !DIExpression()), !dbg !15
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ret void, !dbg !15
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}
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5}
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!llvm.ident = !{!6}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: ".", directory: "/foo")
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!2 = !{}
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!3 = !{i32 2, !"Dwarf Version", i32 4}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{i32 1, !"wchar_size", i32 4}
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!6 = !{!"clang"}
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!7 = distinct !DISubprogram(name: "test1", scope: !1, file: !1, line: 1, type: !8, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !11)
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!8 = !DISubroutineType(types: !9)
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!9 = !{!10, !10, !10}
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!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!11 = !{!12}
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!12 = !DILocalVariable(name: "getdirt", arg: 1, scope: !7, file: !1, line: 1, type: !10)
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!15 = !DILocation(line: 1, column: 15, scope: !7)
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