Imported Upstream version 5.18.0.205

Former-commit-id: 7f59f7e792705db773f1caecdaa823092f4e2927

external/llvm/test/CodeGen/X86/machinesink-merge-debuginfo.ll

@@ -0,0 +1,104 @@
+; RUN: llc -simplify-mir -stop-after=machine-sink < %s -o - | FileCheck %s
+
+; ModuleID = 'test-sink-debug.cpp'
+source_filename = "test-sink-debug.cpp"
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+; double foo(double x, double y, bool c) {
+;   double a = x / 3.0;
+;   double b = y / 5.0;
+;   double ret;
+;
+;   if (c)
+;      ret = a + 1.0;
+;   else
+;      ret = b + 1.0;
+;
+;   ret = ret + 1.0;
+;
+;   return ret;
+; }
+
+; Function Attrs: nounwind readnone uwtable
+define double @_Z3fooddb(double %x, double %y, i1 zeroext %c) local_unnamed_addr !dbg !7 {
+  tail call void @llvm.dbg.value(metadata double %x, metadata !13, metadata !DIExpression()), !dbg !16
+  tail call void @llvm.dbg.value(metadata double %y, metadata !14, metadata !DIExpression()), !dbg !16
+  tail call void @llvm.dbg.value(metadata i1 %c, metadata !15, metadata !DIExpression()), !dbg !16
+  %a = fdiv double %x, 3.000000e+00
+  %b = fdiv double %y, 5.000000e+00, !dbg !17
+  br i1 %c, label %first, label %second
+first:
+  %e = fadd double %a, 1.000000e+00
+  br label %final
+second:
+; CHECK-NOT:  debug-location !17
+; CHECK:  debug-location !18
+; CHECK-NOT:  debug-location !17
+  %f = fadd double %b, 1.000000e+00, !dbg !18
+  br label %final
+final:
+  %cond = phi double [%e, %first], [%f, %second]
+  %d = fadd double %cond, 1.000000e+00
+  ret double %d
+}
+
+
+
+; Function Attrs: nounwind readnone uwtable
+define double @_Z4foo1ddb(double %x, double %y, i1 zeroext %c) local_unnamed_addr !dbg !19 {
+  tail call void @llvm.dbg.value(metadata double %x, metadata !21, metadata !DIExpression()), !dbg !24
+  tail call void @llvm.dbg.value(metadata double %y, metadata !22, metadata !DIExpression()), !dbg !24
+  tail call void @llvm.dbg.value(metadata i1 %c, metadata !23, metadata !DIExpression()), !dbg !24
+  %a = fdiv double %x, 3.000000e+00
+  %b = fdiv double %y, 5.000000e+00, !dbg !25
+  br i1 %c, label %first, label %second
+first:
+  %e = fadd double %a, 1.000000e+00
+  br label %final
+second:
+  %f = fadd double %b, 1.000000e+00, !dbg !25
+; CHECK:  debug-location !25
+; CHECK-NEXT:  debug-location !25
+  br label %final
+final:
+  %cond = phi double [%e, %first], [%f, %second]
+  %d = fadd double %cond, 1.000000e+00
+  ret double %d
+}
+
+!llvm.dbg.cu = !{!0}
+!llvm.module.flags = !{!3, !4, !5}
+!llvm.ident = !{!6}
+
+attributes #1 = { nounwind readnone speculatable }
+
+; Function Attrs: nounwind readnone speculatable
+declare void @llvm.dbg.value(metadata, metadata, metadata) #1
+
+!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)
+!1 = !DIFile(filename: "test-sink-debug.cpp", directory: "/tmp")
+!2 = !{}
+!3 = !{i32 2, !"Dwarf Version", i32 4}
+!4 = !{i32 2, !"Debug Info Version", i32 3}
+!5 = !{i32 1, !"wchar_size", i32 4}
+!6 = !{!"clang version 6.0.0 (trunk 313291)"}
+!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, variables: !12)
+!8 = !DISubroutineType(types: !9)
+!9 = !{!10, !10, !10, !11}
+!10 = !DIBasicType(name: "double", size: 64, encoding: DW_ATE_float)
+!11 = !DIBasicType(name: "bool", size: 8, encoding: DW_ATE_boolean)
+!12 = !{!13, !14, !15}
+!13 = !DILocalVariable(name: "x", arg: 1, scope: !7, file: !1, line: 1, type: !10)
+!14 = !DILocalVariable(name: "y", arg: 2, scope: !7, file: !1, line: 1, type: !10)
+!15 = !DILocalVariable(name: "c", arg: 3, scope: !7, file: !1, line: 1, type: !11)
+!16 = !DILocation(line: 1, column: 19, scope: !7)
+!17 = !DILocation(line: 2, column: 26, scope: !7)
+!18 = !DILocation(line: 3, column: 20, scope: !7)
+!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, variables: !20)
+!20 = !{!21, !22, !23}
+!21 = !DILocalVariable(name: "x", arg: 1, scope: !19, file: !1, line: 1, type: !10)
+!22 = !DILocalVariable(name: "y", arg: 2, scope: !19, file: !1, line: 1, type: !10)
+!23 = !DILocalVariable(name: "c", arg: 3, scope: !19, file: !1, line: 1, type: !11)
+!24 = !DILocation(line: 1, column: 19, scope: !19)
+!25 = !DILocation(line: 2, column: 26, scope: !19)