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79 lines
4.0 KiB
LLVM
79 lines
4.0 KiB
LLVM
; RUN: opt -jump-threading -S < %s | FileCheck %s
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define dso_local i32 @_Z3fooi(i32 %a) !dbg !7 {
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entry:
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call void @llvm.dbg.value(metadata i32 %a, metadata !12, metadata !DIExpression()), !dbg !13
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call void @llvm.dbg.value(metadata i32 1, metadata !14, metadata !DIExpression()), !dbg !13
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%tobool = icmp ne i32 %a, 0, !dbg !15
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br i1 %tobool, label %if.then, label %if.end, !dbg !17
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if.then: ; preds = %entry
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call void @_Z4callv(), !dbg !18
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call void @llvm.dbg.value(metadata i32 0, metadata !14, metadata !DIExpression()), !dbg !13
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br label %if.end, !dbg !20
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if.end: ; preds = %if.then, %entry
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%c.0 = phi i32 [ 0, %if.then ], [ 1, %entry ], !dbg !13
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call void @llvm.dbg.value(metadata i32 %c.0, metadata !14, metadata !DIExpression()), !dbg !13
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%tobool1 = icmp ne i32 %c.0, 0, !dbg !21
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br i1 %tobool1, label %if.else, label %if.then2, !dbg !23
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; CHECK-LABEL: if.then2:
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; CHECK: call void @llvm.dbg.value({{.+}}, metadata ![[B:[0-9]+]], metadata !DIExpression())
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; CHECK: call void @llvm.dbg.value({{.+}}, metadata ![[B:[0-9]+]], metadata !DIExpression())
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; CHECK-NOT: call void @llvm.dbg.value({{.+}}, metadata ![[B]], metadata !DIExpression())
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if.then2: ; preds = %if.end
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call void @llvm.dbg.value(metadata i32 4, metadata !24, metadata !DIExpression()), !dbg !13
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br label %if.end3, !dbg !25
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; CHECK-LABEL: if.end3:
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if.else: ; preds = %if.end
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call void @llvm.dbg.value(metadata i32 6, metadata !24, metadata !DIExpression()), !dbg !13
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br label %if.end3
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if.end3: ; preds = %if.else, %if.then2
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%b.0 = phi i32 [ 6, %if.else ], [ 4, %if.then2 ], !dbg !27
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call void @llvm.dbg.value(metadata i32 %b.0, metadata !24, metadata !DIExpression()), !dbg !13
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ret i32 %b.0, !dbg !28
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}
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; Function Attrs: nounwind readnone speculatable willreturn
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declare void @llvm.dbg.declare(metadata, metadata, metadata)
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declare dso_local void @_Z4callv()
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; Function Attrs: nounwind readnone speculatable willreturn
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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, !4, !5}
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!llvm.ident = !{!6}
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; CHECK: ![[B]] = !DILocalVariable(name: "b"
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 10.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
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!1 = !DIFile(filename: "test.cpp", directory: "/")
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!2 = !{}
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!3 = !{i32 7, !"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 version 10.0.0"}
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!7 = distinct !DISubprogram(name: "foo", linkageName: "_Z3fooi", scope: !8, file: !8, line: 3, type: !9, scopeLine: 3, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
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!8 = !DIFile(filename: "./test.cpp", directory: "/")
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!9 = !DISubroutineType(types: !10)
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!10 = !{!11, !11}
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!11 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!12 = !DILocalVariable(name: "a", arg: 1, scope: !7, file: !8, line: 3, type: !11)
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!13 = !DILocation(line: 0, scope: !7)
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!14 = !DILocalVariable(name: "c", scope: !7, file: !8, line: 4, type: !11)
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!15 = !DILocation(line: 5, column: 7, scope: !16)
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!16 = distinct !DILexicalBlock(scope: !7, file: !8, line: 5, column: 7)
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!17 = !DILocation(line: 5, column: 7, scope: !7)
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!18 = !DILocation(line: 6, column: 5, scope: !19)
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!19 = distinct !DILexicalBlock(scope: !16, file: !8, line: 5, column: 10)
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!20 = !DILocation(line: 8, column: 3, scope: !19)
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!21 = !DILocation(line: 9, column: 8, scope: !22)
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!22 = distinct !DILexicalBlock(scope: !7, file: !8, line: 9, column: 7)
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!23 = !DILocation(line: 9, column: 7, scope: !7)
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!24 = !DILocalVariable(name: "b", scope: !7, file: !8, line: 4, type: !11)
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!25 = !DILocation(line: 11, column: 3, scope: !26)
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!26 = distinct !DILexicalBlock(scope: !22, file: !8, line: 9, column: 11)
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!27 = !DILocation(line: 0, scope: !22)
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!28 = !DILocation(line: 14, column: 3, scope: !7)
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