1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature 2; RUN: opt < %s -S -passes=ipsccp | FileCheck %s 3; RUN: opt < %s -S -passes=ipsccp --try-experimental-debuginfo-iterators | FileCheck %s 4;; Check that @patatino is optimised to "unreachable" given that it branches on 5;; undef. Check too that debug intrinsics have no effect on this. 6 7define void @main() { 8; CHECK-LABEL: define {{[^@]+}}@main() { 9; CHECK-NEXT: [[CALL:%.*]] = call i1 @patatino(i1 undef) 10; CHECK-NEXT: ret void 11; 12 %call = call i1 @patatino(i1 undef) 13 ret void 14} 15 16define internal i1 @patatino(i1 %a) { 17; CHECK-LABEL: define {{[^@]+}}@patatino 18; CHECK-SAME: (i1 [[A:%.*]]) { 19; CHECK-NEXT: unreachable 20; 21 br i1 %a, label %ontrue, label %onfalse 22ontrue: 23 call void @llvm.dbg.value(metadata i32 0, metadata !6, metadata !DIExpression()), !dbg !11 24 call void @llvm.dbg.value(metadata i32 1, metadata !9, metadata !DIExpression()), !dbg !11 25 ret i1 false 26onfalse: 27 call void @llvm.dbg.value(metadata i32 0, metadata !6, metadata !DIExpression()), !dbg !11 28 call void @llvm.dbg.value(metadata i32 1, metadata !9, metadata !DIExpression()), !dbg !11 29 ret i1 false 30} 31 32declare void @llvm.dbg.value(metadata, metadata, metadata) nounwind readnone 33 34!llvm.module.flags = !{!21} 35!llvm.dbg.cu = !{!2} 36 37!0 = distinct !DISubprogram(name: "foo", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !2, file: !20, scope: !1, type: !3) 38!1 = !DIFile(filename: "b.c", directory: "/private/tmp") 39!2 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang", isOptimized: true, emissionKind: FullDebug, file: !20) 40!3 = !DISubroutineType(types: !4) 41!4 = !{!5} 42!5 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 43!6 = !DILocalVariable(name: "i", line: 2, arg: 1, scope: !0, file: !1, type: !5) 44!7 = !DILocation(line: 2, column: 13, scope: !0) 45!9 = !DILocalVariable(name: "k", line: 3, scope: !10, file: !1, type: !5) 46!10 = distinct !DILexicalBlock(line: 2, column: 16, file: !20, scope: !0) 47!11 = !DILocation(line: 3, column: 12, scope: !10) 48!12 = !DILocation(line: 4, column: 3, scope: !10) 49!13 = !DILocation(line: 5, column: 5, scope: !14) 50!14 = distinct !DILexicalBlock(line: 4, column: 10, file: !20, scope: !10) 51!15 = !DILocation(line: 6, column: 3, scope: !14) 52!16 = !DILocation(line: 7, column: 5, scope: !17) 53!17 = distinct !DILexicalBlock(line: 6, column: 10, file: !20, scope: !10) 54!18 = !DILocation(line: 8, column: 3, scope: !17) 55!19 = !DILocation(line: 9, column: 3, scope: !10) 56!20 = !DIFile(filename: "b.c", directory: "/private/tmp") 57!21 = !{i32 1, !"Debug Info Version", i32 3} 58 59