1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -basic-aa -debugify -loop-idiom -pass-remarks=loop-idiom -pass-remarks-analysis=loop-idiom -pass-remarks-output=%t.yaml -verify -verify-each -verify-dom-info -verify-loop-info < %s -S 2>&1 | FileCheck %s 3; RUN: FileCheck --input-file=%t.yaml %s --check-prefixes=YAML 4 5target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 6target triple = "x86_64-unknown-linux-gnu" 7 8; Check that everything still works when debuginfo is present, and that it is reasonably propagated. 9 10; void my_basic_memset(char* begin, char* end, char value) { 11; for( ; begin != end; ++begin) 12; *begin = value; 13; } 14 15; CHECK: remark: <stdin>:4:1: Transformed loop-strided store in _Z15my_basic_memsetPcS_c function into a call to llvm.memset.p0i8.i64() intrinsic{{$}} 16 17; YAML: --- !Passed 18; YAML-NEXT: Pass: loop-idiom 19; YAML-NEXT: Name: ProcessLoopStridedStore 20; YAML-NEXT: DebugLoc: { File: '<stdin>', Line: 4, Column: 1 } 21; YAML-NEXT: Function: _Z15my_basic_memsetPcS_c 22; YAML-NEXT: Args: 23; YAML-NEXT: - String: 'Transformed loop-strided store in ' 24; YAML-NEXT: - Function: _Z15my_basic_memsetPcS_c 25; YAML-NEXT: DebugLoc: { File: '<stdin>', Line: 1, Column: 0 } 26; YAML-NEXT: - String: ' function into a call to ' 27; YAML-NEXT: - NewFunction: llvm.memset.p0i8.i64 28; YAML-NEXT: - String: '() intrinsic' 29; YAML-NEXT: - FromBlock: for.body 30; YAML-NEXT: - ToBlock: for.body.preheader 31; YAML-NEXT: ... 32 33define void @_Z15my_basic_memsetPcS_c(i8* %ptr, i8* %end, i8 %value) { 34; CHECK-LABEL: @_Z15my_basic_memsetPcS_c( 35; CHECK-NEXT: entry: 36; CHECK-NEXT: [[PTR2:%.*]] = ptrtoint i8* [[PTR:%.*]] to i64, !dbg [[DBG15:![0-9]+]] 37; CHECK-NEXT: [[END1:%.*]] = ptrtoint i8* [[END:%.*]] to i64, !dbg [[DBG15]] 38; CHECK-NEXT: [[CMP3:%.*]] = icmp eq i8* [[PTR]], [[END]], !dbg [[DBG15]] 39; CHECK-NEXT: call void @llvm.dbg.value(metadata i1 [[CMP3]], metadata [[META9:![0-9]+]], metadata !DIExpression()), !dbg [[DBG15]] 40; CHECK-NEXT: br i1 [[CMP3]], label [[FOR_END:%.*]], label [[FOR_BODY_PREHEADER:%.*]], !dbg [[DBG16:![0-9]+]] 41; CHECK: for.body.preheader: 42; CHECK-NEXT: [[TMP0:%.*]] = sub i64 [[END1]], [[PTR2]], !dbg [[DBG17:![0-9]+]] 43; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* align 1 [[PTR]], i8 [[VALUE:%.*]], i64 [[TMP0]], i1 false), !dbg [[DBG18:![0-9]+]] 44; CHECK-NEXT: br label [[FOR_BODY:%.*]], !dbg [[DBG17]] 45; CHECK: for.body: 46; CHECK-NEXT: [[PTR_ADDR_04:%.*]] = phi i8* [ [[INCDEC_PTR:%.*]], [[FOR_BODY]] ], [ [[PTR]], [[FOR_BODY_PREHEADER]] ], !dbg [[DBG19:![0-9]+]] 47; CHECK-NEXT: call void @llvm.dbg.value(metadata i8* [[PTR_ADDR_04]], metadata [[META11:![0-9]+]], metadata !DIExpression()), !dbg [[DBG19]] 48; CHECK-NEXT: [[INCDEC_PTR]] = getelementptr inbounds i8, i8* [[PTR_ADDR_04]], i64 1, !dbg [[DBG20:![0-9]+]] 49; CHECK-NEXT: call void @llvm.dbg.value(metadata i8* [[INCDEC_PTR]], metadata [[META13:![0-9]+]], metadata !DIExpression()), !dbg [[DBG20]] 50; CHECK-NEXT: [[CMP:%.*]] = icmp eq i8* [[INCDEC_PTR]], [[END]], !dbg [[DBG21:![0-9]+]] 51; CHECK-NEXT: call void @llvm.dbg.value(metadata i1 [[CMP]], metadata [[META14:![0-9]+]], metadata !DIExpression()), !dbg [[DBG21]] 52; CHECK-NEXT: br i1 [[CMP]], label [[FOR_END_LOOPEXIT:%.*]], label [[FOR_BODY]], !dbg [[DBG17]] 53; CHECK: for.end.loopexit: 54; CHECK-NEXT: br label [[FOR_END]], !dbg [[DBG22:![0-9]+]] 55; CHECK: for.end: 56; CHECK-NEXT: ret void, !dbg [[DBG22]] 57; 58entry: 59 %cmp3 = icmp eq i8* %ptr, %end 60 br i1 %cmp3, label %for.end, label %for.body 61 62for.body: ; preds = %entry, %for.body 63 %ptr.addr.04 = phi i8* [ %incdec.ptr, %for.body ], [ %ptr, %entry ] 64 store i8 %value, i8* %ptr.addr.04, align 1 65 %incdec.ptr = getelementptr inbounds i8, i8* %ptr.addr.04, i64 1 66 %cmp = icmp eq i8* %incdec.ptr, %end 67 br i1 %cmp, label %for.end, label %for.body 68 69for.end: ; preds = %for.body, %entry 70 ret void 71} 72