1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5 2; RUN: opt -S --passes=loop-vectorize -prefer-predicate-over-epilogue=predicate-dont-vectorize -force-vector-width=4 < %s | FileCheck %s 3 4define i32 @test(ptr %vf1, i64 %n) { 5; CHECK-LABEL: define i32 @test( 6; CHECK-SAME: ptr [[VF1:%.*]], i64 [[N:%.*]]) { 7; CHECK-NEXT: [[ENTRY:.*]]: 8; CHECK-NEXT: br i1 false, label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]] 9; CHECK: [[VECTOR_PH]]: 10; CHECK-NEXT: br label %[[VECTOR_BODY:.*]] 11; CHECK: [[VECTOR_BODY]]: 12; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[PRED_STORE_CONTINUE6:.*]] ] 13; CHECK-NEXT: [[VEC_IND:%.*]] = phi <4 x i64> [ <i64 0, i64 1, i64 2, i64 3>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[PRED_STORE_CONTINUE6]] ] 14; CHECK-NEXT: [[TMP0:%.*]] = icmp ule <4 x i64> [[VEC_IND]], splat (i64 200) 15; CHECK-NEXT: [[TMP1:%.*]] = extractelement <4 x i1> [[TMP0]], i32 0 16; CHECK-NEXT: br i1 [[TMP1]], label %[[PRED_STORE_IF:.*]], label %[[PRED_STORE_CONTINUE:.*]] 17; CHECK: [[PRED_STORE_IF]]: 18; CHECK-NEXT: [[TMP2:%.*]] = add i64 [[INDEX]], 0 19; CHECK-NEXT: [[TMP3:%.*]] = getelementptr inbounds ptr, ptr [[VF1]], i64 [[TMP2]] 20; CHECK-NEXT: [[TMP4:%.*]] = alloca i8, i64 [[N]], align 16 21; CHECK-NEXT: store ptr [[TMP4]], ptr [[TMP3]], align 8 22; CHECK-NEXT: br label %[[PRED_STORE_CONTINUE]] 23; CHECK: [[PRED_STORE_CONTINUE]]: 24; CHECK-NEXT: [[TMP5:%.*]] = extractelement <4 x i1> [[TMP0]], i32 1 25; CHECK-NEXT: br i1 [[TMP5]], label %[[PRED_STORE_IF1:.*]], label %[[PRED_STORE_CONTINUE2:.*]] 26; CHECK: [[PRED_STORE_IF1]]: 27; CHECK-NEXT: [[TMP6:%.*]] = add i64 [[INDEX]], 1 28; CHECK-NEXT: [[TMP7:%.*]] = getelementptr inbounds ptr, ptr [[VF1]], i64 [[TMP6]] 29; CHECK-NEXT: [[TMP8:%.*]] = alloca i8, i64 [[N]], align 16 30; CHECK-NEXT: store ptr [[TMP8]], ptr [[TMP7]], align 8 31; CHECK-NEXT: br label %[[PRED_STORE_CONTINUE2]] 32; CHECK: [[PRED_STORE_CONTINUE2]]: 33; CHECK-NEXT: [[TMP9:%.*]] = extractelement <4 x i1> [[TMP0]], i32 2 34; CHECK-NEXT: br i1 [[TMP9]], label %[[PRED_STORE_IF3:.*]], label %[[PRED_STORE_CONTINUE4:.*]] 35; CHECK: [[PRED_STORE_IF3]]: 36; CHECK-NEXT: [[TMP10:%.*]] = add i64 [[INDEX]], 2 37; CHECK-NEXT: [[TMP11:%.*]] = getelementptr inbounds ptr, ptr [[VF1]], i64 [[TMP10]] 38; CHECK-NEXT: [[TMP12:%.*]] = alloca i8, i64 [[N]], align 16 39; CHECK-NEXT: store ptr [[TMP12]], ptr [[TMP11]], align 8 40; CHECK-NEXT: br label %[[PRED_STORE_CONTINUE4]] 41; CHECK: [[PRED_STORE_CONTINUE4]]: 42; CHECK-NEXT: [[TMP13:%.*]] = extractelement <4 x i1> [[TMP0]], i32 3 43; CHECK-NEXT: br i1 [[TMP13]], label %[[PRED_STORE_IF5:.*]], label %[[PRED_STORE_CONTINUE6]] 44; CHECK: [[PRED_STORE_IF5]]: 45; CHECK-NEXT: [[TMP14:%.*]] = add i64 [[INDEX]], 3 46; CHECK-NEXT: [[TMP15:%.*]] = getelementptr inbounds ptr, ptr [[VF1]], i64 [[TMP14]] 47; CHECK-NEXT: [[TMP16:%.*]] = alloca i8, i64 [[N]], align 16 48; CHECK-NEXT: store ptr [[TMP16]], ptr [[TMP15]], align 8 49; CHECK-NEXT: br label %[[PRED_STORE_CONTINUE6]] 50; CHECK: [[PRED_STORE_CONTINUE6]]: 51; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4 52; CHECK-NEXT: [[VEC_IND_NEXT]] = add <4 x i64> [[VEC_IND]], splat (i64 4) 53; CHECK-NEXT: [[TMP17:%.*]] = icmp eq i64 [[INDEX_NEXT]], 204 54; CHECK-NEXT: br i1 [[TMP17]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] 55; CHECK: [[MIDDLE_BLOCK]]: 56; CHECK-NEXT: br i1 true, label %[[EXIT:.*]], label %[[SCALAR_PH]] 57; CHECK: [[SCALAR_PH]]: 58; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 204, %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ] 59; CHECK-NEXT: br label %[[FOR_BODY:.*]] 60; CHECK: [[FOR_BODY]]: 61; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[INDVARS_IV_NEXT:%.*]], %[[FOR_BODY]] ] 62; CHECK-NEXT: [[TMP18:%.*]] = alloca i8, i64 [[N]], align 16 63; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds ptr, ptr [[VF1]], i64 [[INDVARS_IV]] 64; CHECK-NEXT: store ptr [[TMP18]], ptr [[ARRAYIDX]], align 8 65; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add i64 [[INDVARS_IV]], 1 66; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INDVARS_IV]], 200 67; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label %[[EXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]] 68; CHECK: [[EXIT]]: 69; CHECK-NEXT: ret i32 0 70; 71entry: 72 br label %for.body 73 74for.body: 75 %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] 76 %0 = alloca i8, i64 %n, align 16 77 %arrayidx = getelementptr inbounds ptr, ptr %vf1, i64 %indvars.iv 78 store ptr %0, ptr %arrayidx, align 8 79 %indvars.iv.next = add i64 %indvars.iv, 1 80 %exitcond.not = icmp eq i64 %indvars.iv, 200 81 br i1 %exitcond.not, label %exit, label %for.body 82 83exit: 84 ret i32 0 85} 86;. 87; CHECK: [[LOOP0]] = distinct !{[[LOOP0]], [[META1:![0-9]+]], [[META2:![0-9]+]]} 88; CHECK: [[META1]] = !{!"llvm.loop.isvectorized", i32 1} 89; CHECK: [[META2]] = !{!"llvm.loop.unroll.runtime.disable"} 90; CHECK: [[LOOP3]] = distinct !{[[LOOP3]], [[META2]], [[META1]]} 91;. 92