1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals 2; RUN: opt -S -passes=jump-threading %s -o - -S | FileCheck %s 3; RUN: opt -S -passes=jump-threading %s -o - -S --try-experimental-debuginfo-iterators | FileCheck %s 4 5; Test that debug-info records in the Merge block, to be copied by 6; DuplicateInstructionsInSplitBetween, get duplicated into the relevant 7; parent blocks. And that ino jump-threading, the old dbg.value gets 8; deleted. 9 10; Test that JumpThreading's threadGuard() propagates the debug location 11; to the `phi` from the instruction it replaces (`%retval`) 12 13declare void @llvm.experimental.guard(i1, ...) 14 15declare i32 @f1() 16declare i32 @f2() 17 18declare void @llvm.dbg.value(metadata, metadata, metadata) 19 20define i32 @branch_implies_guard(i32 %a) !dbg !7 { 21; CHECK-LABEL: @branch_implies_guard( 22; CHECK-NEXT: [[COND:%.*]] = icmp slt i32 [[A:%.*]], 10 23; CHECK-NEXT: br i1 [[COND]], label [[T1_SPLIT:%.*]], label [[F1_SPLIT:%.*]], !dbg [[DBG12:![0-9]+]] 24; CHECK: T1.split: 25; CHECK-NEXT: [[V1:%.*]] = call i32 @f1(), !dbg [[DBG12]] 26; CHECK-NEXT: #dbg_value(i32 0, [[META13:![0-9]+]], !DIExpression(), [[META14:![0-9]+]]) 27; CHECK-NEXT: [[RETVAL3:%.*]] = add i32 [[V1]], 10, !dbg [[DBG12]] 28; CHECK-NEXT: [[CONDGUARD4:%.*]] = icmp slt i32 [[A]], 20, !dbg [[DBG12]] 29; CHECK-NEXT: br label [[MERGE:%.*]] 30; CHECK: F1.split: 31; CHECK-NEXT: [[V2:%.*]] = call i32 @f2(), !dbg [[DBG12]] 32; CHECK-NEXT: #dbg_value(i32 0, [[META13]], !DIExpression(), [[META14]]) 33; CHECK-NEXT: [[RETVAL1:%.*]] = add i32 [[V2]], 10, !dbg [[DBG12]] 34; CHECK-NEXT: [[CONDGUARD2:%.*]] = icmp slt i32 [[A]], 20, !dbg [[DBG12]] 35; CHECK-NEXT: call void (i1, ...) @llvm.experimental.guard(i1 [[CONDGUARD2]]) [ "deopt"() ] 36; CHECK-NEXT: br label [[MERGE]] 37; CHECK: Merge: 38; CHECK-NEXT: [[RETPHI:%.*]] = phi i32 [ [[V1]], [[T1_SPLIT]] ], [ [[V2]], [[F1_SPLIT]] ] 39; CHECK-NEXT: [[TMP1:%.*]] = phi i32 [ [[RETVAL3]], [[T1_SPLIT]] ], [ [[RETVAL1]], [[F1_SPLIT]] ], !dbg [[DBG12]] 40; CHECK-NEXT: ret i32 [[TMP1]], !dbg [[DBG12]] 41; 42 %cond = icmp slt i32 %a, 10 43 br i1 %cond, label %T1, label %F1, !dbg !26 44 45T1: 46 %v1 = call i32 @f1(), !dbg !26 47 br label %Merge 48 49F1: 50 %v2 = call i32 @f2(), !dbg !26 51 br label %Merge 52 53Merge: 54 %retPhi = phi i32 [ %v1, %T1 ], [ %v2, %F1 ] 55 call void @llvm.dbg.value(metadata i32 0, metadata !12, metadata !DIExpression()), !dbg !13 56 %retVal = add i32 %retPhi, 10, !dbg !26 57 %condGuard = icmp slt i32 %a, 20, !dbg !26 58 call void(i1, ...) @llvm.experimental.guard(i1 %condGuard) [ "deopt"() ] 59 ret i32 %retVal, !dbg !26 60} 61 62!llvm.dbg.cu = !{!0} 63!llvm.module.flags = !{!3, !4, !5} 64!llvm.ident = !{!6} 65 66!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None) 67!1 = !DIFile(filename: "test.c", directory: "/tmp/out.c") 68!2 = !{} 69!3 = !{i32 7, !"Dwarf Version", i32 4} 70!4 = !{i32 2, !"Debug Info Version", i32 3} 71!5 = !{i32 1, !"wchar_size", i32 4} 72!6 = !{!""} 73!7 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 3, type: !8, scopeLine: 3, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2) 74!8 = !DISubroutineType(types: !9) 75!9 = !{!10, !11, !11} 76!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 77!11 = !DIBasicType(name: "long int", size: 64, encoding: DW_ATE_signed) 78!12 = !DILocalVariable(name: "bar", arg: 1, scope: !7, file: !1, line: 3, type: !11) 79!13 = !DILocation(line: 0, scope: !7) 80!14 = !DILocalVariable(name: "baz", arg: 2, scope: !7, file: !1, line: 3, type: !11) 81!19 = distinct !DILexicalBlock(scope: !7, file: !1, line: 8, column: 7) 82!26 = !DILocation(line: 13, column: 3, scope: !7) 83 84;. 85; CHECK: [[META0:![0-9]+]] = distinct !DICompileUnit(language: DW_LANG_C99, file: [[META1:![0-9]+]], isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: [[META2:![0-9]+]], splitDebugInlining: false, nameTableKind: None) 86; CHECK: [[META1]] = !DIFile(filename: "test.c", directory: {{.*}}) 87; CHECK: [[META2]] = !{} 88; CHECK: [[META3:![0-9]+]] = !{i32 7, !"Dwarf Version", i32 4} 89; CHECK: [[META4:![0-9]+]] = !{i32 2, !"Debug Info Version", i32 3} 90; CHECK: [[META5:![0-9]+]] = !{i32 1, !"wchar_size", i32 4} 91; CHECK: [[META6:![0-9]+]] = !{!""} 92; CHECK: [[META7:![0-9]+]] = distinct !DISubprogram(name: "foo", scope: [[META1]], file: [[META1]], line: 3, type: [[META8:![0-9]+]], scopeLine: 3, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: [[META0]], retainedNodes: [[META2]]) 93; CHECK: [[META8]] = !DISubroutineType(types: [[META9:![0-9]+]]) 94; CHECK: [[META9]] = !{[[META10:![0-9]+]], [[META11:![0-9]+]], [[META11]]} 95; CHECK: [[META10]] = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 96; CHECK: [[META11]] = !DIBasicType(name: "long int", size: 64, encoding: DW_ATE_signed) 97; CHECK: [[DBG12]] = !DILocation(line: 13, column: 3, scope: [[META7]]) 98; CHECK: [[META13]] = !DILocalVariable(name: "bar", arg: 1, scope: [[META7]], file: [[META1]], line: 3, type: [[META11]]) 99; CHECK: [[META14]] = !DILocation(line: 0, scope: [[META7]]) 100;. 101