1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2 2; RUN: opt -passes=loop-versioning -S < %s | FileCheck %s 3 4target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 5 6; Version this loop with overlap checks between a, c and b, c. 7 8define void @f(ptr %a, ptr %b, ptr %c) { 9; CHECK-LABEL: define void @f 10; CHECK-SAME: (ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]]) { 11; CHECK-NEXT: for.body.lver.check: 12; CHECK-NEXT: [[SCEVGEP:%.*]] = getelementptr i8, ptr [[C]], i64 80 13; CHECK-NEXT: [[SCEVGEP1:%.*]] = getelementptr i8, ptr [[A]], i64 80 14; CHECK-NEXT: [[SCEVGEP2:%.*]] = getelementptr i8, ptr [[B]], i64 80 15; CHECK-NEXT: [[BOUND0:%.*]] = icmp ult ptr [[C]], [[SCEVGEP1]] 16; CHECK-NEXT: [[BOUND1:%.*]] = icmp ult ptr [[A]], [[SCEVGEP]] 17; CHECK-NEXT: [[FOUND_CONFLICT:%.*]] = and i1 [[BOUND0]], [[BOUND1]] 18; CHECK-NEXT: [[BOUND03:%.*]] = icmp ult ptr [[C]], [[SCEVGEP2]] 19; CHECK-NEXT: [[BOUND14:%.*]] = icmp ult ptr [[B]], [[SCEVGEP]] 20; CHECK-NEXT: [[FOUND_CONFLICT5:%.*]] = and i1 [[BOUND03]], [[BOUND14]] 21; CHECK-NEXT: [[CONFLICT_RDX:%.*]] = or i1 [[FOUND_CONFLICT]], [[FOUND_CONFLICT5]] 22; CHECK-NEXT: br i1 [[CONFLICT_RDX]], label [[FOR_BODY_PH_LVER_ORIG:%.*]], label [[FOR_BODY_PH:%.*]] 23; CHECK: for.body.ph.lver.orig: 24; CHECK-NEXT: br label [[FOR_BODY_LVER_ORIG:%.*]] 25; CHECK: for.body.lver.orig: 26; CHECK-NEXT: [[IND_LVER_ORIG:%.*]] = phi i64 [ 0, [[FOR_BODY_PH_LVER_ORIG]] ], [ [[ADD_LVER_ORIG:%.*]], [[FOR_BODY_LVER_ORIG]] ] 27; CHECK-NEXT: [[ARRAYIDXA_LVER_ORIG:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[IND_LVER_ORIG]] 28; CHECK-NEXT: [[LOADA_LVER_ORIG:%.*]] = load i32, ptr [[ARRAYIDXA_LVER_ORIG]], align 4 29; CHECK-NEXT: [[ARRAYIDXB_LVER_ORIG:%.*]] = getelementptr inbounds i32, ptr [[B]], i64 [[IND_LVER_ORIG]] 30; CHECK-NEXT: [[LOADB_LVER_ORIG:%.*]] = load i32, ptr [[ARRAYIDXB_LVER_ORIG]], align 4 31; CHECK-NEXT: [[MULC_LVER_ORIG:%.*]] = mul i32 [[LOADA_LVER_ORIG]], [[LOADB_LVER_ORIG]] 32; CHECK-NEXT: [[ARRAYIDXC_LVER_ORIG:%.*]] = getelementptr inbounds i32, ptr [[C]], i64 [[IND_LVER_ORIG]] 33; CHECK-NEXT: store i32 [[MULC_LVER_ORIG]], ptr [[ARRAYIDXC_LVER_ORIG]], align 4 34; CHECK-NEXT: [[ADD_LVER_ORIG]] = add nuw nsw i64 [[IND_LVER_ORIG]], 1 35; CHECK-NEXT: [[EXITCOND_LVER_ORIG:%.*]] = icmp eq i64 [[ADD_LVER_ORIG]], 20 36; CHECK-NEXT: br i1 [[EXITCOND_LVER_ORIG]], label [[FOR_END_LOOPEXIT:%.*]], label [[FOR_BODY_LVER_ORIG]] 37; CHECK: for.body.ph: 38; CHECK-NEXT: br label [[FOR_BODY:%.*]] 39; CHECK: for.body: 40; CHECK-NEXT: [[IND:%.*]] = phi i64 [ 0, [[FOR_BODY_PH]] ], [ [[ADD:%.*]], [[FOR_BODY]] ] 41; CHECK-NEXT: [[ARRAYIDXA:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[IND]] 42; CHECK-NEXT: [[LOADA:%.*]] = load i32, ptr [[ARRAYIDXA]], align 4, !alias.scope !0 43; CHECK-NEXT: [[ARRAYIDXB:%.*]] = getelementptr inbounds i32, ptr [[B]], i64 [[IND]] 44; CHECK-NEXT: [[LOADB:%.*]] = load i32, ptr [[ARRAYIDXB]], align 4, !alias.scope !3 45; CHECK-NEXT: [[MULC:%.*]] = mul i32 [[LOADA]], [[LOADB]] 46; CHECK-NEXT: [[ARRAYIDXC:%.*]] = getelementptr inbounds i32, ptr [[C]], i64 [[IND]] 47; CHECK-NEXT: store i32 [[MULC]], ptr [[ARRAYIDXC]], align 4, !alias.scope !5, !noalias !7 48; CHECK-NEXT: [[ADD]] = add nuw nsw i64 [[IND]], 1 49; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[ADD]], 20 50; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END_LOOPEXIT6:%.*]], label [[FOR_BODY]] 51; CHECK: for.end.loopexit: 52; CHECK-NEXT: br label [[FOR_END:%.*]] 53; CHECK: for.end.loopexit6: 54; CHECK-NEXT: br label [[FOR_END]] 55; CHECK: for.end: 56; CHECK-NEXT: ret void 57; 58entry: 59 br label %for.body 60 61 62 63for.body: ; preds = %for.body, %entry 64 %ind = phi i64 [ 0, %entry ], [ %add, %for.body ] 65 66 %arrayidxA = getelementptr inbounds i32, ptr %a, i64 %ind 67 %loadA = load i32, ptr %arrayidxA, align 4 68 69 %arrayidxB = getelementptr inbounds i32, ptr %b, i64 %ind 70 %loadB = load i32, ptr %arrayidxB, align 4 71 72 %mulC = mul i32 %loadA, %loadB 73 74 %arrayidxC = getelementptr inbounds i32, ptr %c, i64 %ind 75 store i32 %mulC, ptr %arrayidxC, align 4 76 77 %add = add nuw nsw i64 %ind, 1 78 %exitcond = icmp eq i64 %add, 20 79 br i1 %exitcond, label %for.end, label %for.body 80 81for.end: ; preds = %for.body 82 ret void 83} 84