| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -instcombine -S | FileCheck %s |
| |
| declare void @llvm.dbg.declare(metadata, metadata, metadata) |
| declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture) |
| declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture) |
| declare void @foo(i8* nocapture, i8* nocapture) |
| |
| define void @bar(i1 %flag) #0 !dbg !4 { |
| ; CHECK-LABEL: @bar( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TEXT:%.*]] = alloca [1 x i8], align 1 |
| ; CHECK-NEXT: [[BUFF:%.*]] = alloca [1 x i8], align 1 |
| ; CHECK-NEXT: [[TMP0:%.*]] = getelementptr inbounds [1 x i8], [1 x i8]* [[TEXT]], i64 0, i64 0 |
| ; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds [1 x i8], [1 x i8]* [[BUFF]], i64 0, i64 0 |
| ; CHECK-NEXT: br i1 [[FLAG:%.*]], label [[IF:%.*]], label [[ELSE:%.*]] |
| ; CHECK: if: |
| ; CHECK-NEXT: br label [[BB2:%.*]] |
| ; CHECK: bb2: |
| ; CHECK-NEXT: br label [[BB3:%.*]] |
| ; CHECK: bb3: |
| ; CHECK-NEXT: call void @llvm.dbg.declare(metadata [1 x i8]* [[TEXT]], [[META16:metadata !.*]], metadata !DIExpression()), [[DBG24:!dbg !.*]] |
| ; CHECK-NEXT: br label [[FIN:%.*]] |
| ; CHECK: else: |
| ; CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* [[TMP0]]) |
| ; CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* [[TMP1]]) |
| ; CHECK-NEXT: call void @foo(i8* [[TMP1]], i8* [[TMP0]]) |
| ; CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* [[TMP1]]) |
| ; CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* [[TMP0]]) |
| ; CHECK-NEXT: br label [[FIN]] |
| ; CHECK: fin: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| %text = alloca [1 x i8], align 1 |
| %buff = alloca [1 x i8], align 1 |
| %0 = getelementptr inbounds [1 x i8], [1 x i8]* %text, i64 0, i64 0 |
| %1 = getelementptr inbounds [1 x i8], [1 x i8]* %buff, i64 0, i64 0 |
| br i1 %flag, label %if, label %else |
| |
| if: |
| call void @llvm.lifetime.start.p0i8(i64 1, i8* %0) |
| call void @llvm.lifetime.start.p0i8(i64 1, i8* %1) |
| call void @llvm.lifetime.end.p0i8(i64 1, i8* %1) |
| call void @llvm.lifetime.end.p0i8(i64 1, i8* %0) |
| br label %bb2 |
| |
| bb2: |
| call void @llvm.lifetime.start.p0i8(i64 1, i8* %0) |
| call void @llvm.lifetime.start.p0i8(i64 1, i8* %1) |
| call void @llvm.lifetime.end.p0i8(i64 1, i8* %0) |
| call void @llvm.lifetime.end.p0i8(i64 1, i8* %1) |
| br label %bb3 |
| |
| bb3: |
| call void @llvm.lifetime.start.p0i8(i64 1, i8* %0) |
| call void @llvm.dbg.declare(metadata [1 x i8]* %text, metadata !14, metadata !25), !dbg !26 |
| call void @llvm.lifetime.end.p0i8(i64 1, i8* %0) |
| br label %fin |
| |
| else: |
| call void @llvm.lifetime.start.p0i8(i64 1, i8* %0) |
| call void @llvm.lifetime.start.p0i8(i64 1, i8* %1) |
| call void @foo(i8* %1, i8* %0) |
| call void @llvm.lifetime.end.p0i8(i64 1, i8* %1) |
| call void @llvm.lifetime.end.p0i8(i64 1, i8* %0) |
| br label %fin |
| |
| fin: |
| ret void |
| } |
| |
| attributes #0 = { null_pointer_is_valid } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!22, !23} |
| !llvm.ident = !{!24} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.8.0 (trunk 248826) (llvm/trunk 248827)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) |
| !1 = !DIFile(filename: "test.cpp", directory: "/home/user") |
| !2 = !{} |
| !4 = distinct !DISubprogram(name: "bar", linkageName: "bar", scope: !1, file: !1, line: 2, type: !5, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !8) |
| !5 = !DISubroutineType(types: !6) |
| !6 = !{null, !7} |
| !7 = !DIBasicType(name: "bool", size: 8, align: 8, encoding: DW_ATE_boolean) |
| !8 = !{!9, !11, !12, !14, !21} |
| !9 = !DILocalVariable(name: "Size", arg: 1, scope: !4, file: !1, line: 2, type: !10) |
| !10 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) |
| !11 = !DILocalVariable(name: "flag", arg: 2, scope: !4, file: !1, line: 2, type: !7) |
| !12 = !DILocalVariable(name: "i", scope: !13, file: !1, line: 3, type: !10) |
| !13 = distinct !DILexicalBlock(scope: !4, file: !1, line: 3, column: 3) |
| !14 = !DILocalVariable(name: "text", scope: !15, file: !1, line: 4, type: !17) |
| !15 = distinct !DILexicalBlock(scope: !16, file: !1, line: 3, column: 30) |
| !16 = distinct !DILexicalBlock(scope: !13, file: !1, line: 3, column: 3) |
| !17 = !DICompositeType(tag: DW_TAG_array_type, baseType: !18, size: 8, align: 8, elements: !19) |
| !18 = !DIBasicType(name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char) |
| !19 = !{!20} |
| !20 = !DISubrange(count: 1) |
| !21 = !DILocalVariable(name: "buff", scope: !15, file: !1, line: 5, type: !17) |
| !22 = !{i32 2, !"Dwarf Version", i32 4} |
| !23 = !{i32 2, !"Debug Info Version", i32 3} |
| !24 = !{!"clang version 3.8.0 (trunk 248826) (llvm/trunk 248827)"} |
| !25 = !DIExpression() |
| !26 = !DILocation(line: 4, column: 10, scope: !15) |