109 lines
4.4 KiB
LLVM
109 lines
4.4 KiB
LLVM
; RUN: llc -simplify-mir -stop-after=machine-sink < %s -o - | FileCheck %s
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; ModuleID = 'test-sink-debug.cpp'
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source_filename = "test-sink-debug.cpp"
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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; double foo(double x, double y, bool c) {
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; double a = x / 3.0;
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; double b = y / 5.0;
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; double ret;
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;
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; if (c)
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; ret = a + 1.0;
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; else
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; ret = b + 1.0;
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;
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; ret = ret + 1.0;
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;
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; return ret;
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; }
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; CHECK: fdiv {{.*}} !dbg [[NO:![0-9]+]]
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; CHECK: fadd {{.*}} !dbg [[YES:![0-9]+]]
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; CHECK: fdiv {{.*}} !dbg [[TAG:![0-9]+]]
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; Function Attrs: nounwind readnone uwtable
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define double @_Z3fooddb(double %x, double %y, i1 zeroext %c) local_unnamed_addr !dbg !7 {
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tail call void @llvm.dbg.value(metadata double %x, metadata !13, metadata !DIExpression()), !dbg !16
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tail call void @llvm.dbg.value(metadata double %y, metadata !14, metadata !DIExpression()), !dbg !16
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tail call void @llvm.dbg.value(metadata i1 %c, metadata !15, metadata !DIExpression()), !dbg !16
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%a = fdiv double %x, 3.000000e+00
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%b = fdiv double %y, 5.000000e+00, !dbg !17
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br i1 %c, label %first, label %second
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first:
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%e = fadd double %a, 1.000000e+00
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br label %final
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second:
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%f = fadd double %b, 1.000000e+00, !dbg !18
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; CHECK-NOT: debug-location [[NO]]
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; CHECK: debug-location [[YES]]
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; CHECK-NOT: debug-location [[NO]]
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br label %final
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final:
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%cond = phi double [%e, %first], [%f, %second]
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%d = fadd double %cond, 1.000000e+00
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ret double %d
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}
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; Function Attrs: nounwind readnone uwtable
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define double @_Z4foo1ddb(double %x, double %y, i1 zeroext %c) local_unnamed_addr !dbg !19 {
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tail call void @llvm.dbg.value(metadata double %x, metadata !21, metadata !DIExpression()), !dbg !24
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tail call void @llvm.dbg.value(metadata double %y, metadata !22, metadata !DIExpression()), !dbg !24
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tail call void @llvm.dbg.value(metadata i1 %c, metadata !23, metadata !DIExpression()), !dbg !24
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%a = fdiv double %x, 3.000000e+00
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%b = fdiv double %y, 5.000000e+00, !dbg !25
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br i1 %c, label %first, label %second
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first:
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%e = fadd double %a, 1.000000e+00
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br label %final
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second:
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%f = fadd double %b, 1.000000e+00, !dbg !25
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; CHECK: debug-location [[TAG]]
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; CHECK-NEXT: debug-location [[TAG]]
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br label %final
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final:
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%cond = phi double [%e, %first], [%f, %second]
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%d = fadd double %cond, 1.000000e+00
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ret double %d
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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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attributes #1 = { nounwind readnone speculatable }
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; Function Attrs: nounwind readnone speculatable
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declare void @llvm.dbg.value(metadata, metadata, metadata) #1
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 6.0.0 (trunk 313291)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "test-sink-debug.cpp", directory: "/tmp")
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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 version 6.0.0 (trunk 313291)"}
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!7 = distinct !DISubprogram(name: "foo", linkageName: "_Z3fooddb", scope: !1, file: !1, line: 1, type: !8, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !12)
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!8 = !DISubroutineType(types: !9)
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!9 = !{!10, !10, !10, !11}
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!10 = !DIBasicType(name: "double", size: 64, encoding: DW_ATE_float)
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!11 = !DIBasicType(name: "bool", size: 8, encoding: DW_ATE_boolean)
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!12 = !{!13, !14, !15}
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!13 = !DILocalVariable(name: "x", arg: 1, scope: !7, file: !1, line: 1, type: !10)
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!14 = !DILocalVariable(name: "y", arg: 2, scope: !7, file: !1, line: 1, type: !10)
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!15 = !DILocalVariable(name: "c", arg: 3, scope: !7, file: !1, line: 1, type: !11)
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!16 = !DILocation(line: 1, column: 19, scope: !7)
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!17 = !DILocation(line: 2, column: 26, scope: !7)
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!18 = !DILocation(line: 3, column: 20, scope: !7)
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!19 = distinct !DISubprogram(name: "foo1", linkageName: "_Z4foo1ddb", scope: !1, file: !1, line: 1, type: !8, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !20)
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!20 = !{!21, !22, !23}
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!21 = !DILocalVariable(name: "x", arg: 1, scope: !19, file: !1, line: 1, type: !10)
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!22 = !DILocalVariable(name: "y", arg: 2, scope: !19, file: !1, line: 1, type: !10)
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!23 = !DILocalVariable(name: "c", arg: 3, scope: !19, file: !1, line: 1, type: !11)
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!24 = !DILocation(line: 1, column: 19, scope: !19)
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!25 = !DILocation(line: 2, column: 26, scope: !19)
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