96 lines
4.3 KiB
LLVM
96 lines
4.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt < %s -S -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 void*);
|
|
; 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(%struct.Foo* %p) !dbg !11 {
|
|
; CHECK-LABEL: @f(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[LOCAL:%.*]] = alloca i64, align 8
|
|
; CHECK-NEXT: call void @llvm.dbg.declare(metadata i64* [[LOCAL]], [[META22:metadata !.*]], metadata !DIExpression()), [[DBG23:!dbg !.*]]
|
|
; CHECK-NEXT: [[TMP0:%.*]] = bitcast %struct.Foo* [[P:%.*]] to i64*, [[DBG24:!dbg !.*]]
|
|
; CHECK-NEXT: [[TMP1:%.*]] = load i64, i64* [[TMP0]], align 8, [[DBG24]], [[TBAA25:!tbaa !.*]]
|
|
; CHECK-NEXT: store i64 [[TMP1]], i64* [[LOCAL]], align 8, [[DBG29:!dbg !.*]], [[TBAA25]]
|
|
; CHECK-NEXT: [[TMP2:%.*]] = bitcast i64* [[LOCAL]] to i8*, [[DBG30:!dbg !.*]]
|
|
; CHECK-NEXT: call void @escape(i8* nonnull [[TMP2]]), [[DBG31:!dbg !.*]]
|
|
; CHECK-NEXT: ret void, [[DBG32:!dbg !.*]]
|
|
;
|
|
entry:
|
|
%local = alloca %struct.Foo, align 4
|
|
%0 = bitcast %struct.Foo* %local to i8*, !dbg !24
|
|
call void @llvm.dbg.declare(metadata %struct.Foo* %local, metadata !22, metadata !DIExpression()), !dbg !25
|
|
%1 = bitcast %struct.Foo* %p to i64*, !dbg !26
|
|
%2 = load i64, i64* %1, align 8, !dbg !26, !tbaa !27
|
|
%3 = bitcast %struct.Foo* %local to i64*, !dbg !31
|
|
store i64 %2, i64* %3, align 4, !dbg !32, !tbaa !27
|
|
%4 = bitcast %struct.Foo* %local to i8*, !dbg !33
|
|
call void @escape(i8* %4), !dbg !34
|
|
%5 = bitcast %struct.Foo* %local to i8*, !dbg !35
|
|
ret void, !dbg !35
|
|
}
|
|
|
|
declare void @llvm.dbg.declare(metadata, metadata, metadata)
|
|
|
|
declare void @escape(i8*)
|
|
|
|
!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)
|