| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2 |
| ; RUN: opt -passes=loop-versioning -S < %s | FileCheck %s |
| |
| target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" |
| |
| ; Version this loop with overlap checks between a, c and b, c. |
| |
| define void @f(ptr %a, ptr %b, ptr %c) { |
| ; CHECK-LABEL: define void @f |
| ; CHECK-SAME: (ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]]) { |
| ; CHECK-NEXT: for.body.lver.check: |
| ; CHECK-NEXT: [[SCEVGEP:%.*]] = getelementptr i8, ptr [[C]], i64 80 |
| ; CHECK-NEXT: [[SCEVGEP1:%.*]] = getelementptr i8, ptr [[A]], i64 80 |
| ; CHECK-NEXT: [[SCEVGEP2:%.*]] = getelementptr i8, ptr [[B]], i64 80 |
| ; CHECK-NEXT: [[BOUND0:%.*]] = icmp ult ptr [[C]], [[SCEVGEP1]] |
| ; CHECK-NEXT: [[BOUND1:%.*]] = icmp ult ptr [[A]], [[SCEVGEP]] |
| ; CHECK-NEXT: [[FOUND_CONFLICT:%.*]] = and i1 [[BOUND0]], [[BOUND1]] |
| ; CHECK-NEXT: [[BOUND03:%.*]] = icmp ult ptr [[C]], [[SCEVGEP2]] |
| ; CHECK-NEXT: [[BOUND14:%.*]] = icmp ult ptr [[B]], [[SCEVGEP]] |
| ; CHECK-NEXT: [[FOUND_CONFLICT5:%.*]] = and i1 [[BOUND03]], [[BOUND14]] |
| ; CHECK-NEXT: [[CONFLICT_RDX:%.*]] = or i1 [[FOUND_CONFLICT]], [[FOUND_CONFLICT5]] |
| ; CHECK-NEXT: br i1 [[CONFLICT_RDX]], label [[FOR_BODY_PH_LVER_ORIG:%.*]], label [[FOR_BODY_PH:%.*]] |
| ; CHECK: for.body.ph.lver.orig: |
| ; CHECK-NEXT: br label [[FOR_BODY_LVER_ORIG:%.*]] |
| ; CHECK: for.body.lver.orig: |
| ; CHECK-NEXT: [[IND_LVER_ORIG:%.*]] = phi i64 [ 0, [[FOR_BODY_PH_LVER_ORIG]] ], [ [[ADD_LVER_ORIG:%.*]], [[FOR_BODY_LVER_ORIG]] ] |
| ; CHECK-NEXT: [[ARRAYIDXA_LVER_ORIG:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[IND_LVER_ORIG]] |
| ; CHECK-NEXT: [[LOADA_LVER_ORIG:%.*]] = load i32, ptr [[ARRAYIDXA_LVER_ORIG]], align 4 |
| ; CHECK-NEXT: [[ARRAYIDXB_LVER_ORIG:%.*]] = getelementptr inbounds i32, ptr [[B]], i64 [[IND_LVER_ORIG]] |
| ; CHECK-NEXT: [[LOADB_LVER_ORIG:%.*]] = load i32, ptr [[ARRAYIDXB_LVER_ORIG]], align 4 |
| ; CHECK-NEXT: [[MULC_LVER_ORIG:%.*]] = mul i32 [[LOADA_LVER_ORIG]], [[LOADB_LVER_ORIG]] |
| ; CHECK-NEXT: [[ARRAYIDXC_LVER_ORIG:%.*]] = getelementptr inbounds i32, ptr [[C]], i64 [[IND_LVER_ORIG]] |
| ; CHECK-NEXT: store i32 [[MULC_LVER_ORIG]], ptr [[ARRAYIDXC_LVER_ORIG]], align 4 |
| ; CHECK-NEXT: [[ADD_LVER_ORIG]] = add nuw nsw i64 [[IND_LVER_ORIG]], 1 |
| ; CHECK-NEXT: [[EXITCOND_LVER_ORIG:%.*]] = icmp eq i64 [[ADD_LVER_ORIG]], 20 |
| ; CHECK-NEXT: br i1 [[EXITCOND_LVER_ORIG]], label [[FOR_END_LOOPEXIT:%.*]], label [[FOR_BODY_LVER_ORIG]] |
| ; CHECK: for.body.ph: |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[IND:%.*]] = phi i64 [ 0, [[FOR_BODY_PH]] ], [ [[ADD:%.*]], [[FOR_BODY]] ] |
| ; CHECK-NEXT: [[ARRAYIDXA:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[IND]] |
| ; CHECK-NEXT: [[LOADA:%.*]] = load i32, ptr [[ARRAYIDXA]], align 4, !alias.scope !0 |
| ; CHECK-NEXT: [[ARRAYIDXB:%.*]] = getelementptr inbounds i32, ptr [[B]], i64 [[IND]] |
| ; CHECK-NEXT: [[LOADB:%.*]] = load i32, ptr [[ARRAYIDXB]], align 4, !alias.scope !3 |
| ; CHECK-NEXT: [[MULC:%.*]] = mul i32 [[LOADA]], [[LOADB]] |
| ; CHECK-NEXT: [[ARRAYIDXC:%.*]] = getelementptr inbounds i32, ptr [[C]], i64 [[IND]] |
| ; CHECK-NEXT: store i32 [[MULC]], ptr [[ARRAYIDXC]], align 4, !alias.scope !5, !noalias !7 |
| ; CHECK-NEXT: [[ADD]] = add nuw nsw i64 [[IND]], 1 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[ADD]], 20 |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END_LOOPEXIT6:%.*]], label [[FOR_BODY]] |
| ; CHECK: for.end.loopexit: |
| ; CHECK-NEXT: br label [[FOR_END:%.*]] |
| ; CHECK: for.end.loopexit6: |
| ; CHECK-NEXT: br label [[FOR_END]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| br label %for.body |
| |
| |
| |
| for.body: ; preds = %for.body, %entry |
| %ind = phi i64 [ 0, %entry ], [ %add, %for.body ] |
| |
| %arrayidxA = getelementptr inbounds i32, ptr %a, i64 %ind |
| %loadA = load i32, ptr %arrayidxA, align 4 |
| |
| %arrayidxB = getelementptr inbounds i32, ptr %b, i64 %ind |
| %loadB = load i32, ptr %arrayidxB, align 4 |
| |
| %mulC = mul i32 %loadA, %loadB |
| |
| %arrayidxC = getelementptr inbounds i32, ptr %c, i64 %ind |
| store i32 %mulC, ptr %arrayidxC, align 4 |
| |
| %add = add nuw nsw i64 %ind, 1 |
| %exitcond = icmp eq i64 %add, 20 |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: ; preds = %for.body |
| ret void |
| } |