| ; RUN: opt -instcombine -S %s | FileCheck %s |
| |
| define dso_local void @_Z1fv() { |
| %1 = alloca i32, align 4 |
| %2 = bitcast i32* %1 to i8* |
| call void @llvm.lifetime.start.p0i8(i64 4, i8* nonnull %2) |
| call void @llvm.dbg.declare(metadata i32* %1, metadata !16, metadata !DIExpression()), !dbg !19 |
| ; CHECK: %[[A:.*]] = alloca i32, align 4 |
| ; CHECK: call void @llvm.dbg.value(metadata i32* %[[A]], {{.*}}, metadata !DIExpression(DW_OP_deref) |
| ; CHECK: call void @_Z1gPv |
| call void @_Z1gPv(i8* nonnull %2) |
| %3 = bitcast i32* %1 to i8* |
| ; CHECK-NOT: call void @llvm.dbg.value |
| ; CHECK: call void @_Z1gPv |
| call void @_Z1gPv(i8* nonnull %3) |
| call void @llvm.lifetime.end.p0i8(i64 4, i8* nonnull %2) |
| ret void, !dbg !21 |
| } |
| |
| define dso_local void @_Z2fv() { |
| %1 = alloca i32, align 4 |
| %2 = bitcast i32* %1 to i8* |
| call void @llvm.lifetime.start.p0i8(i64 4, i8* nonnull %2) |
| call void @llvm.dbg.declare(metadata i32* %1, metadata !16, metadata !DIExpression()), !dbg !19 |
| ; CHECK: %[[A:.*]] = alloca i32, align 4 |
| ; CHECK: call void @llvm.dbg.value(metadata i32* %[[A]], {{.*}}, metadata !DIExpression(DW_OP_deref) |
| ; CHECK: call void @_Z1gPv |
| call void @_Z1gPv(i8* nonnull %2) |
| br label %block2 |
| |
| block2: |
| %3 = bitcast i32* %1 to i8* |
| ; CHECK: call void @llvm.dbg.value(metadata i32* %[[A]], {{.*}}, metadata !DIExpression(DW_OP_deref) |
| ; CHECK: call void @_Z1gPv |
| call void @_Z1gPv(i8* nonnull %3) |
| call void @llvm.lifetime.end.p0i8(i64 4, i8* nonnull %2) |
| ret void, !dbg !21 |
| } |
| |
| declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture) |
| declare void @llvm.dbg.declare(metadata, metadata, metadata) |
| declare dso_local void @_Z1gPv(i8*) |
| declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture) |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!8, !9, !10} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 10.0.0 (git@github.com:llvm/llvm-project.git cab64b5708f614c71d275ec9d134e68b8c3baedd)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, nameTableKind: None) |
| !1 = !DIFile(filename: "dbg.cc", directory: "/tmp") |
| !2 = !{} |
| !3 = !{!4, !5} |
| !4 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64) |
| !5 = !DISubprogram(name: "g", linkageName: "_Z1gPv", scope: !1, file: !1, line: 1, type: !6, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2) |
| !6 = !DISubroutineType(types: !7) |
| !7 = !{null, !4} |
| !8 = !{i32 7, !"Dwarf Version", i32 4} |
| !9 = !{i32 2, !"Debug Info Version", i32 3} |
| !10 = !{i32 1, !"wchar_size", i32 4} |
| !12 = distinct !DISubprogram(name: "f", linkageName: "_Z1fv", scope: !1, file: !1, line: 2, type: !13, scopeLine: 2, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !15) |
| !13 = !DISubroutineType(types: !14) |
| !14 = !{null} |
| !15 = !{!16} |
| !16 = !DILocalVariable(name: "x", scope: !12, file: !1, line: 3, type: !17) |
| !17 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !18 = !DILocation(line: 3, column: 3, scope: !12) |
| !19 = !DILocation(line: 3, column: 7, scope: !12) |
| !20 = !DILocation(line: 4, column: 3, scope: !12) |
| !21 = !DILocation(line: 5, column: 1, scope: !12) |