1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -S -passes=simplifycfg < %s | FileCheck %s 3;; Test that we correct clone debug-info when folding in 4;; FoldCondBranchOnValueKnownInPredecessorImpl. There should be two paths 5;; through this program, assigning [0 1 2 3 4 5 6 7] to the variable down 6;; one path, and [0 1 2 3 6 7] down the other. 7 8declare void @foo() 9declare void @bar() 10declare void @use.i1(i1) 11declare void @use.i32(i32) 12declare void @llvm.dbg.value(metadata, metadata, metadata) 13 14define void @test_phi_extra_use(i1 %c) { 15; CHECK-LABEL: @test_phi_extra_use( 16; CHECK-NEXT: br i1 [[C:%.*]], label [[IF:%.*]], label [[ELSE:%.*]] 17; CHECK: if: 18; CHECK-NEXT: call void @foo() 19; CHECK-NEXT: #dbg_value(i32 0, [[META7:![0-9]+]], !DIExpression(), [[META13:![0-9]+]]) 20; CHECK-NEXT: #dbg_value(i32 1, [[META7]], !DIExpression(), [[META13]]) 21; CHECK-NEXT: call void @use.i1(i1 true) 22; CHECK-NEXT: #dbg_value(i32 2, [[META7]], !DIExpression(), [[META13]]) 23; CHECK-NEXT: #dbg_value(i32 3, [[META7]], !DIExpression(), [[META13]]) 24; CHECK-NEXT: call void @foo() 25; CHECK-NEXT: br label [[JOIN2:%.*]] 26; CHECK: else: 27; CHECK-NEXT: call void @bar() 28; CHECK-NEXT: #dbg_value(i32 0, [[META7]], !DIExpression(), [[META13]]) 29; CHECK-NEXT: #dbg_value(i32 1, [[META7]], !DIExpression(), [[META13]]) 30; CHECK-NEXT: call void @use.i1(i1 false) 31; CHECK-NEXT: #dbg_value(i32 2, [[META7]], !DIExpression(), [[META13]]) 32; CHECK-NEXT: #dbg_value(i32 3, [[META7]], !DIExpression(), [[META13]]) 33; CHECK-NEXT: #dbg_value(i32 4, [[META7]], !DIExpression(), [[META13]]) 34; CHECK-NEXT: #dbg_value(i32 5, [[META7]], !DIExpression(), [[META13]]) 35; CHECK-NEXT: call void @bar() 36; CHECK-NEXT: br label [[JOIN2]] 37; CHECK: join2: 38; CHECK-NEXT: #dbg_value(i32 6, [[META7]], !DIExpression(), [[META13]]) 39; CHECK-NEXT: #dbg_value(i32 7, [[META7]], !DIExpression(), [[META13]]) 40; CHECK-NEXT: ret void, !dbg [[META13]] 41; 42 br i1 %c, label %if, label %else 43 44if: 45 call void @foo() 46 br label %join 47 48else: 49 call void @bar() 50 br label %join 51 52join: 53 %c2 = phi i1 [ true, %if ], [ false, %else ] 54 call void @llvm.dbg.value(metadata i32 0, metadata !12, metadata !DIExpression()), !dbg !15 55 call void @llvm.dbg.value(metadata i32 1, metadata !12, metadata !DIExpression()), !dbg !15 56 call void @use.i1(i1 %c2) 57 call void @llvm.dbg.value(metadata i32 2, metadata !12, metadata !DIExpression()), !dbg !15 58 call void @llvm.dbg.value(metadata i32 3, metadata !12, metadata !DIExpression()), !dbg !15 59 br i1 %c2, label %if2, label %else2 60 61if2: 62 call void @foo() 63 br label %join2 64 65else2: 66 call void @llvm.dbg.value(metadata i32 4, metadata !12, metadata !DIExpression()), !dbg !15 67 call void @llvm.dbg.value(metadata i32 5, metadata !12, metadata !DIExpression()), !dbg !15 68 call void @bar() 69 br label %join2 70 71join2: 72 call void @llvm.dbg.value(metadata i32 6, metadata !12, metadata !DIExpression()), !dbg !15 73 call void @llvm.dbg.value(metadata i32 7, metadata !12, metadata !DIExpression()), !dbg !15 74 ret void, !dbg !15 75} 76 77!llvm.dbg.cu = !{!0} 78!llvm.module.flags = !{!3, !4, !5} 79!llvm.ident = !{!6} 80 81!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) 82!1 = !DIFile(filename: ".", directory: "/foo") 83!2 = !{} 84!3 = !{i32 2, !"Dwarf Version", i32 4} 85!4 = !{i32 2, !"Debug Info Version", i32 3} 86!5 = !{i32 1, !"wchar_size", i32 4} 87!6 = !{!"clang"} 88!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) 89!8 = !DISubroutineType(types: !9) 90!9 = !{!10, !10, !10} 91!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 92!11 = !{!12} 93!12 = !DILocalVariable(name: "getdirt", arg: 1, scope: !7, file: !1, line: 1, type: !10) 94!15 = !DILocation(line: 1, column: 15, scope: !7) 95 96