| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -S -passes=instcombine -instcombine-lower-dbg-declare=0 | FileCheck %s |
| |
| ; In this example, instcombine wants to turn "local" into an i64, since that's |
| ; how it is stored. It should keep the debug info referring to the alloca when |
| ; it does the replacement. |
| |
| ; C source: |
| ; struct Foo { |
| ; int x, y; |
| ; }; |
| ; void escape(const ptr); |
| ; void f(struct Foo *p) { |
| ; struct Foo local; |
| ; *(__int64 *)&local = *(__int64 *)p; |
| ; escape(&local); |
| ; } |
| |
| ; ModuleID = '<stdin>' |
| source_filename = "t.c" |
| target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-pc-windows-msvc19.11.25508" |
| |
| %struct.Foo = type { i32, i32 } |
| |
| define void @f(ptr %p) !dbg !11 { |
| ; CHECK-LABEL: @f( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[LOCAL:%.*]] = alloca [[STRUCT_FOO:%.*]], align 4 |
| ; CHECK-NEXT: call void @llvm.dbg.declare(metadata ptr [[LOCAL]], metadata [[META22:![0-9]+]], metadata !DIExpression()), !dbg [[DBG23:![0-9]+]] |
| ; CHECK-NEXT: [[TMP0:%.*]] = load i64, ptr [[P:%.*]], align 8, !dbg [[DBG24:![0-9]+]], !tbaa [[TBAA25:![0-9]+]] |
| ; CHECK-NEXT: store i64 [[TMP0]], ptr [[LOCAL]], align 4, !dbg [[DBG29:![0-9]+]], !tbaa [[TBAA25]] |
| ; CHECK-NEXT: call void @escape(ptr nonnull [[LOCAL]]), !dbg [[DBG30:![0-9]+]] |
| ; CHECK-NEXT: ret void, !dbg [[DBG31:![0-9]+]] |
| ; |
| entry: |
| %local = alloca %struct.Foo, align 4 |
| call void @llvm.dbg.declare(metadata ptr %local, metadata !22, metadata !DIExpression()), !dbg !25 |
| %0 = load i64, ptr %p, align 8, !dbg !26, !tbaa !27 |
| store i64 %0, ptr %local, align 4, !dbg !32, !tbaa !27 |
| call void @escape(ptr %local), !dbg !34 |
| ret void, !dbg !35 |
| } |
| |
| declare void @llvm.dbg.declare(metadata, metadata, metadata) |
| |
| declare void @escape(ptr) |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!6, !7, !8, !9} |
| !llvm.ident = !{!10} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 6.0.0 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3) |
| !1 = !DIFile(filename: "t.c", directory: "C:\5Csrc\5Cllvm-project\5Cbuild", checksumkind: CSK_MD5, checksum: "d7473625866433067a75fd7d03d2abf7") |
| !2 = !{} |
| !3 = !{!4} |
| !4 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !5, size: 64) |
| !5 = !DIBasicType(name: "long long int", size: 64, encoding: DW_ATE_signed) |
| !6 = !{i32 2, !"CodeView", i32 1} |
| !7 = !{i32 2, !"Debug Info Version", i32 3} |
| !8 = !{i32 1, !"wchar_size", i32 2} |
| !9 = !{i32 7, !"PIC Level", i32 2} |
| !10 = !{!"clang version 6.0.0 "} |
| !11 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 5, type: !12, isLocal: false, isDefinition: true, scopeLine: 5, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !20) |
| !12 = !DISubroutineType(types: !13) |
| !13 = !{null, !14} |
| !14 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !15, size: 64) |
| !15 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Foo", file: !1, line: 1, size: 64, elements: !16) |
| !16 = !{!17, !19} |
| !17 = !DIDerivedType(tag: DW_TAG_member, name: "x", scope: !15, file: !1, line: 2, baseType: !18, size: 32) |
| !18 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !19 = !DIDerivedType(tag: DW_TAG_member, name: "y", scope: !15, file: !1, line: 2, baseType: !18, size: 32, offset: 32) |
| !20 = !{!21, !22} |
| !21 = !DILocalVariable(name: "p", arg: 1, scope: !11, file: !1, line: 5, type: !14) |
| !22 = !DILocalVariable(name: "local", scope: !11, file: !1, line: 6, type: !15) |
| !23 = !DILocation(line: 5, column: 20, scope: !11) |
| !24 = !DILocation(line: 6, column: 3, scope: !11) |
| !25 = !DILocation(line: 6, column: 14, scope: !11) |
| !26 = !DILocation(line: 7, column: 24, scope: !11) |
| !27 = !{!28, !28, i64 0} |
| !28 = !{!"long long", !29, i64 0} |
| !29 = !{!"omnipotent char", !30, i64 0} |
| !30 = !{!"Simple C/C++ TBAA"} |
| !31 = !DILocation(line: 7, column: 3, scope: !11) |
| !32 = !DILocation(line: 7, column: 22, scope: !11) |
| !33 = !DILocation(line: 8, column: 10, scope: !11) |
| !34 = !DILocation(line: 8, column: 3, scope: !11) |
| !35 = !DILocation(line: 9, column: 1, scope: !11) |