1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5 2; RUN: opt -aa-pipeline=basic-aa -passes=loop-distribute -enable-loop-distribute -verify-loop-info -verify-dom-info -S %s | FileCheck %s 3 4@B = common global ptr null, align 8 5@A = common global ptr null, align 8 6@C = common global ptr null, align 8 7@D = common global ptr null, align 8 8@E = common global ptr null, align 8 9 10define void @f() { 11; CHECK-LABEL: define void @f() { 12; CHECK-NEXT: [[ENTRY:.*]]: 13; CHECK-NEXT: [[A:%.*]] = load ptr, ptr @A, align 8 14; CHECK-NEXT: [[B:%.*]] = load ptr, ptr @B, align 8 15; CHECK-NEXT: [[C:%.*]] = load ptr, ptr @C, align 8 16; CHECK-NEXT: [[D:%.*]] = load ptr, ptr @D, align 8 17; CHECK-NEXT: [[E:%.*]] = load ptr, ptr @E, align 8 18; CHECK-NEXT: br label %[[FOR_BODY:.*]] 19; CHECK: [[FOR_BODY]]: 20; CHECK-NEXT: [[IND:%.*]] = phi i64 [ 0, %[[ENTRY]] ], [ [[ADD:%.*]], %[[LATCH:.*]] ] 21; CHECK-NEXT: [[ARRAYIDXA:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[IND]] 22; CHECK-NEXT: [[LOADA:%.*]] = load i32, ptr [[ARRAYIDXA]], align 4 23; CHECK-NEXT: [[ARRAYIDXB:%.*]] = getelementptr inbounds i32, ptr [[B]], i64 [[IND]] 24; CHECK-NEXT: [[LOADB:%.*]] = load i32, ptr [[ARRAYIDXB]], align 4 25; CHECK-NEXT: [[UNCOUNTABLE_C:%.*]] = icmp eq i32 [[LOADB]], 10 26; CHECK-NEXT: br i1 [[UNCOUNTABLE_C]], label %[[FOR_END:.*]], label %[[LATCH]] 27; CHECK: [[LATCH]]: 28; CHECK-NEXT: [[MULA:%.*]] = mul i32 [[LOADB]], [[LOADA]] 29; CHECK-NEXT: [[ADD]] = add nuw nsw i64 [[IND]], 1 30; CHECK-NEXT: [[ARRAYIDXA_PLUS_4:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[ADD]] 31; CHECK-NEXT: store i32 [[MULA]], ptr [[ARRAYIDXA_PLUS_4]], align 4 32; CHECK-NEXT: [[ARRAYIDXD:%.*]] = getelementptr inbounds i32, ptr [[D]], i64 [[IND]] 33; CHECK-NEXT: [[LOADD:%.*]] = load i32, ptr [[ARRAYIDXD]], align 4 34; CHECK-NEXT: [[ARRAYIDXE:%.*]] = getelementptr inbounds i32, ptr [[E]], i64 [[IND]] 35; CHECK-NEXT: [[LOADE:%.*]] = load i32, ptr [[ARRAYIDXE]], align 4 36; CHECK-NEXT: [[MULC:%.*]] = mul i32 [[LOADD]], [[LOADE]] 37; CHECK-NEXT: [[ARRAYIDXC:%.*]] = getelementptr inbounds i32, ptr [[C]], i64 [[IND]] 38; CHECK-NEXT: store i32 [[MULC]], ptr [[ARRAYIDXC]], align 4 39; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[ADD]], 20 40; CHECK-NEXT: br i1 [[EXITCOND]], label %[[FOR_END]], label %[[FOR_BODY]] 41; CHECK: [[FOR_END]]: 42; CHECK-NEXT: ret void 43; 44entry: 45 %a = load ptr, ptr @A, align 8 46 %b = load ptr, ptr @B, align 8 47 %c = load ptr, ptr @C, align 8 48 %d = load ptr, ptr @D, align 8 49 %e = load ptr, ptr @E, align 8 50 br label %for.body 51 52for.body: 53 %ind = phi i64 [ 0, %entry ], [ %add, %latch ] 54 55 %arrayidxA = getelementptr inbounds i32, ptr %a, i64 %ind 56 %loadA = load i32, ptr %arrayidxA, align 4 57 58 %arrayidxB = getelementptr inbounds i32, ptr %b, i64 %ind 59 %loadB = load i32, ptr %arrayidxB, align 4 60 %uncountable.c = icmp eq i32 %loadB, 10 61 br i1 %uncountable.c, label %for.end, label %latch 62 63latch: 64 %mulA = mul i32 %loadB, %loadA 65 66 %add = add nuw nsw i64 %ind, 1 67 %arrayidxA_plus_4 = getelementptr inbounds i32, ptr %a, i64 %add 68 store i32 %mulA, ptr %arrayidxA_plus_4, align 4 69 70 %arrayidxD = getelementptr inbounds i32, ptr %d, i64 %ind 71 %loadD = load i32, ptr %arrayidxD, align 4 72 73 %arrayidxE = getelementptr inbounds i32, ptr %e, i64 %ind 74 %loadE = load i32, ptr %arrayidxE, align 4 75 76 %mulC = mul i32 %loadD, %loadE 77 78 %arrayidxC = getelementptr inbounds i32, ptr %c, i64 %ind 79 store i32 %mulC, ptr %arrayidxC, align 4 80 81 %exitcond = icmp eq i64 %add, 20 82 br i1 %exitcond, label %for.end, label %for.body 83 84for.end: ; preds = %for.body 85 ret void 86} 87 88attributes #0 = { nounwind readnone convergent } 89attributes #1 = { nounwind convergent } 90 91!0 = distinct !{!0, !1} 92!1 = !{!"llvm.loop.distribute.enable", i1 true} 93