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      1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
      2 ; RUN: opt < %s -S -simplifycfg | FileCheck %s
      3 
      4 ; This test case was generated from speculate-dbgvalue.c:
      5 ;
      6 ;   int test1(int getdirt, int dirt) {
      7 ;     int result = 100;
      8 ;     if (getdirt != 0)
      9 ;       result = dirt;
     10 ;     return result;
     11 ;   }
     12 ;
     13 ; using
     14 ;   clang speculate-dbgvalue.c -S -emit-llvm -g -O3 -mllvm -disable-llvm-optzns -o - | opt -mem2reg -S
     15 
     16 
     17 ; Function Attrs: nounwind uwtable
     18 define i32 @test1(i32 %getdirt, i32 %dirt) #0 !dbg !7 {
     19 ; CHECK-LABEL: @test1(
     20 ; CHECK-NEXT:  entry:
     21 ; CHECK-NEXT:    call void @llvm.dbg.value(metadata i32 [[GETDIRT:%.*]], metadata !12, metadata !DIExpression()), !dbg !15
     22 ; CHECK-NEXT:    call void @llvm.dbg.value(metadata i32 [[DIRT:%.*]], metadata !13, metadata !DIExpression()), !dbg !16
     23 ; CHECK-NEXT:    call void @llvm.dbg.value(metadata i32 100, metadata !14, metadata !DIExpression()), !dbg !17
     24 ; CHECK-NEXT:    [[CMP:%.*]] = icmp ne i32 [[GETDIRT]], 0, !dbg !18
     25 ; *** We used to get an incorrect "call void @llvm.dbg.value(metadata i32 [[DIRT]], metadata !14, metadata !DIExpression()), !dbg !17" here, before the select. ***
     26 ; CHECK-NOT:     call void @llvm.dbg.value(metadata i32 [[DIRT]], metadata !14
     27 ; CHECK-NEXT:    [[RESULT:%.*]] = select i1 [[CMP]], i32 [[DIRT]], i32 100, !dbg !20
     28 ; CHECK-NEXT:    call void @llvm.dbg.value(metadata i32 [[RESULT]], metadata !14, metadata !DIExpression()), !dbg !17
     29 ; CHECK-NEXT:    ret i32 [[RESULT]], !dbg !21
     30 ; CHECK: !12 = !DILocalVariable(name: "getdirt"
     31 ; CHECK: !13 = !DILocalVariable(name: "dirt"
     32 ; CHECK: !14 = !DILocalVariable(name: "result"
     33 ;
     34 entry:
     35   call void @llvm.dbg.value(metadata i32 %getdirt, metadata !12, metadata !DIExpression()), !dbg !15
     36   call void @llvm.dbg.value(metadata i32 %dirt, metadata !13, metadata !DIExpression()), !dbg !16
     37   call void @llvm.dbg.value(metadata i32 100, metadata !14, metadata !DIExpression()), !dbg !17
     38   %cmp = icmp ne i32 %getdirt, 0, !dbg !18
     39   br i1 %cmp, label %if.then, label %if.end, !dbg !20
     40 
     41 if.then:                                          ; preds = %entry
     42   call void @llvm.dbg.value(metadata i32 %dirt, metadata !14, metadata !DIExpression()), !dbg !17
     43   br label %if.end, !dbg !21
     44 
     45 if.end:                                           ; preds = %if.then, %entry
     46   %result.0 = phi i32 [ %dirt, %if.then ], [ 100, %entry ]
     47   call void @llvm.dbg.value(metadata i32 %result.0, metadata !14, metadata !DIExpression()), !dbg !17
     48   ret i32 %result.0, !dbg !22
     49 }
     50 
     51 ; Function Attrs: nounwind readnone speculatable
     52 declare void @llvm.dbg.value(metadata, metadata, metadata) #1
     53 
     54 attributes #0 = { nounwind uwtable }
     55 attributes #1 = { nounwind readnone speculatable }
     56 
     57 !llvm.dbg.cu = !{!0}
     58 !llvm.module.flags = !{!3, !4, !5}
     59 !llvm.ident = !{!6}
     60 
     61 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 6.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
     62 !1 = !DIFile(filename: "speculate-dbgvalue.c", directory: "/foo")
     63 !2 = !{}
     64 !3 = !{i32 2, !"Dwarf Version", i32 4}
     65 !4 = !{i32 2, !"Debug Info Version", i32 3}
     66 !5 = !{i32 1, !"wchar_size", i32 4}
     67 !6 = !{!"clang version 6.0.0"}
     68 !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)
     69 !8 = !DISubroutineType(types: !9)
     70 !9 = !{!10, !10, !10}
     71 !10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
     72 !11 = !{!12, !13, !14}
     73 !12 = !DILocalVariable(name: "getdirt", arg: 1, scope: !7, file: !1, line: 1, type: !10)
     74 !13 = !DILocalVariable(name: "dirt", arg: 2, scope: !7, file: !1, line: 1, type: !10)
     75 !14 = !DILocalVariable(name: "result", scope: !7, file: !1, line: 2, type: !10)
     76 !15 = !DILocation(line: 1, column: 15, scope: !7)
     77 !16 = !DILocation(line: 1, column: 28, scope: !7)
     78 !17 = !DILocation(line: 2, column: 7, scope: !7)
     79 !18 = !DILocation(line: 3, column: 15, scope: !19)
     80 !19 = distinct !DILexicalBlock(scope: !7, file: !1, line: 3, column: 7)
     81 !20 = !DILocation(line: 3, column: 7, scope: !7)
     82 !21 = !DILocation(line: 4, column: 5, scope: !19)
     83 !22 = !DILocation(line: 5, column: 3, scope: !7)
     84