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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 62; RUN: opt < %s -S -passes=instcombine -instcombine-lower-dbg-declare=0 | FileCheck %s3 4; In this example, instcombine wants to turn "local" into an i64, since that's5; how it is stored. It should keep the debug info referring to the alloca when6; it does the replacement.7 8; C source:9; struct Foo {10; int x, y;11; };12; void escape(const ptr);13; void f(struct Foo *p) {14; struct Foo local;15; *(__int64 *)&local = *(__int64 *)p;16; escape(&local);17; }18 19; ModuleID = '<stdin>'20source_filename = "t.c"21target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"22target triple = "x86_64-pc-windows-msvc19.11.25508"23 24%struct.Foo = type { i32, i32 }25 26define void @f(ptr %p) !dbg !11 {27; CHECK-LABEL: define void @f(28; CHECK-SAME: ptr [[P:%.*]]) !dbg [[DBG11:![0-9]+]] {29; CHECK-NEXT: [[ENTRY:.*:]]30; CHECK-NEXT: [[LOCAL:%.*]] = alloca [[STRUCT_FOO:%.*]], align 431; CHECK-NEXT: #dbg_declare(ptr [[LOCAL]], [[META22:![0-9]+]], !DIExpression(), [[META23:![0-9]+]])32; CHECK-NEXT: [[TMP0:%.*]] = load i64, ptr [[P]], align 8, !dbg [[DBG24:![0-9]+]], !tbaa [[LONG_LONG_TBAA25:![0-9]+]]33; CHECK-NEXT: store i64 [[TMP0]], ptr [[LOCAL]], align 4, !dbg [[DBG29:![0-9]+]], !tbaa [[LONG_LONG_TBAA25]]34; CHECK-NEXT: call void @escape(ptr nonnull [[LOCAL]]), !dbg [[DBG30:![0-9]+]]35; CHECK-NEXT: ret void, !dbg [[DBG31:![0-9]+]]36;37entry:38 %local = alloca %struct.Foo, align 439 call void @llvm.dbg.declare(metadata ptr %local, metadata !22, metadata !DIExpression()), !dbg !2540 %0 = load i64, ptr %p, align 8, !dbg !26, !tbaa !2741 store i64 %0, ptr %local, align 4, !dbg !32, !tbaa !2742 call void @escape(ptr %local), !dbg !3443 ret void, !dbg !3544}45 46declare void @llvm.dbg.declare(metadata, metadata, metadata)47 48declare void @escape(ptr)49 50!llvm.dbg.cu = !{!0}51!llvm.module.flags = !{!6, !7, !8, !9}52!llvm.ident = !{!10}53 54!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)55!1 = !DIFile(filename: "t.c", directory: "C:\5Csrc\5Cllvm-project\5Cbuild", checksumkind: CSK_MD5, checksum: "d7473625866433067a75fd7d03d2abf7")56!2 = !{}57!3 = !{!4}58!4 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !5, size: 64)59!5 = !DIBasicType(name: "long long int", size: 64, encoding: DW_ATE_signed)60!6 = !{i32 2, !"CodeView", i32 1}61!7 = !{i32 2, !"Debug Info Version", i32 3}62!8 = !{i32 1, !"wchar_size", i32 2}63!9 = !{i32 7, !"PIC Level", i32 2}64!10 = !{!"clang version 6.0.0 "}65!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)66!12 = !DISubroutineType(types: !13)67!13 = !{null, !14}68!14 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !15, size: 64)69!15 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Foo", file: !1, line: 1, size: 64, elements: !16)70!16 = !{!17, !19}71!17 = !DIDerivedType(tag: DW_TAG_member, name: "x", scope: !15, file: !1, line: 2, baseType: !18, size: 32)72!18 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)73!19 = !DIDerivedType(tag: DW_TAG_member, name: "y", scope: !15, file: !1, line: 2, baseType: !18, size: 32, offset: 32)74!20 = !{!21, !22}75!21 = !DILocalVariable(name: "p", arg: 1, scope: !11, file: !1, line: 5, type: !14)76!22 = !DILocalVariable(name: "local", scope: !11, file: !1, line: 6, type: !15)77!23 = !DILocation(line: 5, column: 20, scope: !11)78!24 = !DILocation(line: 6, column: 3, scope: !11)79!25 = !DILocation(line: 6, column: 14, scope: !11)80!26 = !DILocation(line: 7, column: 24, scope: !11)81!27 = !{!28, !28, i64 0}82!28 = !{!"long long", !29, i64 0}83!29 = !{!"omnipotent char", !30, i64 0}84!30 = !{!"Simple C/C++ TBAA"}85!31 = !DILocation(line: 7, column: 3, scope: !11)86!32 = !DILocation(line: 7, column: 22, scope: !11)87!33 = !DILocation(line: 8, column: 10, scope: !11)88!34 = !DILocation(line: 8, column: 3, scope: !11)89!35 = !DILocation(line: 9, column: 1, scope: !11)90