| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; 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 |
| ; RUN: FileCheck --input-file=%t.yaml %s --check-prefixes=YAML |
| |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| ; Check that everything still works when debuginfo is present, and that it is reasonably propagated. |
| |
| ; void my_basic_memset(char* begin, char* end, char value) { |
| ; for( ; begin != end; ++begin) |
| ; *begin = value; |
| ; } |
| |
| ; CHECK: remark: <stdin>:4:1: Transformed loop-strided store in _Z15my_basic_memsetPcS_c function into a call to llvm.memset.p0i8.i64() intrinsic{{$}} |
| |
| ; YAML: --- !Passed |
| ; YAML-NEXT: Pass: loop-idiom |
| ; YAML-NEXT: Name: ProcessLoopStridedStore |
| ; YAML-NEXT: DebugLoc: { File: '<stdin>', Line: 4, Column: 1 } |
| ; YAML-NEXT: Function: _Z15my_basic_memsetPcS_c |
| ; YAML-NEXT: Args: |
| ; YAML-NEXT: - String: 'Transformed loop-strided store in ' |
| ; YAML-NEXT: - Function: _Z15my_basic_memsetPcS_c |
| ; YAML-NEXT: DebugLoc: { File: '<stdin>', Line: 1, Column: 0 } |
| ; YAML-NEXT: - String: ' function into a call to ' |
| ; YAML-NEXT: - NewFunction: llvm.memset.p0i8.i64 |
| ; YAML-NEXT: - String: '() intrinsic' |
| ; YAML-NEXT: - FromBlock: for.body |
| ; YAML-NEXT: - ToBlock: for.body.preheader |
| ; YAML-NEXT: ... |
| |
| define void @_Z15my_basic_memsetPcS_c(i8* %ptr, i8* %end, i8 %value) { |
| ; CHECK-LABEL: @_Z15my_basic_memsetPcS_c( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[PTR2:%.*]] = ptrtoint i8* [[PTR:%.*]] to i64, !dbg [[DBG15:![0-9]+]] |
| ; CHECK-NEXT: [[END1:%.*]] = ptrtoint i8* [[END:%.*]] to i64, !dbg [[DBG15]] |
| ; CHECK-NEXT: [[CMP3:%.*]] = icmp eq i8* [[PTR]], [[END]], !dbg [[DBG15]] |
| ; CHECK-NEXT: call void @llvm.dbg.value(metadata i1 [[CMP3]], metadata [[META9:![0-9]+]], metadata !DIExpression()), !dbg [[DBG15]] |
| ; CHECK-NEXT: br i1 [[CMP3]], label [[FOR_END:%.*]], label [[FOR_BODY_PREHEADER:%.*]], !dbg [[DBG16:![0-9]+]] |
| ; CHECK: for.body.preheader: |
| ; CHECK-NEXT: [[TMP0:%.*]] = sub i64 [[END1]], [[PTR2]], !dbg [[DBG17:![0-9]+]] |
| ; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* align 1 [[PTR]], i8 [[VALUE:%.*]], i64 [[TMP0]], i1 false), !dbg [[DBG18:![0-9]+]] |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]], !dbg [[DBG17]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[PTR_ADDR_04:%.*]] = phi i8* [ [[INCDEC_PTR:%.*]], [[FOR_BODY]] ], [ [[PTR]], [[FOR_BODY_PREHEADER]] ], !dbg [[DBG19:![0-9]+]] |
| ; CHECK-NEXT: call void @llvm.dbg.value(metadata i8* [[PTR_ADDR_04]], metadata [[META11:![0-9]+]], metadata !DIExpression()), !dbg [[DBG19]] |
| ; CHECK-NEXT: [[INCDEC_PTR]] = getelementptr inbounds i8, i8* [[PTR_ADDR_04]], i64 1, !dbg [[DBG20:![0-9]+]] |
| ; CHECK-NEXT: call void @llvm.dbg.value(metadata i8* [[INCDEC_PTR]], metadata [[META13:![0-9]+]], metadata !DIExpression()), !dbg [[DBG20]] |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i8* [[INCDEC_PTR]], [[END]], !dbg [[DBG21:![0-9]+]] |
| ; CHECK-NEXT: call void @llvm.dbg.value(metadata i1 [[CMP]], metadata [[META14:![0-9]+]], metadata !DIExpression()), !dbg [[DBG21]] |
| ; CHECK-NEXT: br i1 [[CMP]], label [[FOR_END_LOOPEXIT:%.*]], label [[FOR_BODY]], !dbg [[DBG17]] |
| ; CHECK: for.end.loopexit: |
| ; CHECK-NEXT: br label [[FOR_END]], !dbg [[DBG22:![0-9]+]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: ret void, !dbg [[DBG22]] |
| ; |
| entry: |
| %cmp3 = icmp eq i8* %ptr, %end |
| br i1 %cmp3, label %for.end, label %for.body |
| |
| for.body: ; preds = %entry, %for.body |
| %ptr.addr.04 = phi i8* [ %incdec.ptr, %for.body ], [ %ptr, %entry ] |
| store i8 %value, i8* %ptr.addr.04, align 1 |
| %incdec.ptr = getelementptr inbounds i8, i8* %ptr.addr.04, i64 1 |
| %cmp = icmp eq i8* %incdec.ptr, %end |
| br i1 %cmp, label %for.end, label %for.body |
| |
| for.end: ; preds = %for.body, %entry |
| ret void |
| } |
