1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2 2; RUN: opt < %s -passes=loop-vectorize -force-vector-width=2 -S | FileCheck %s 3 4define void @d() { 5; CHECK-LABEL: define void @d() { 6; CHECK-NEXT: entry: 7; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] 8; CHECK: vector.ph: 9; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] 10; CHECK: vector.body: 11; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 12; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0 13; CHECK-NEXT: [[TMP6:%.*]] = load float, ptr null, align 4 14; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <2 x float> poison, float [[TMP6]], i64 0 15; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <2 x float> [[BROADCAST_SPLATINSERT]], <2 x float> poison, <2 x i32> zeroinitializer 16; CHECK-NEXT: [[TMP1:%.*]] = getelementptr float, ptr @d, i64 [[TMP0]] 17; CHECK-NEXT: [[TMP2:%.*]] = call <2 x i1> @llvm.is.fpclass.v2f32(<2 x float> [[BROADCAST_SPLAT]], i32 0) 18; CHECK-NEXT: [[TMP3:%.*]] = select <2 x i1> [[TMP2]], <2 x float> zeroinitializer, <2 x float> zeroinitializer 19; CHECK-NEXT: [[TMP4:%.*]] = getelementptr float, ptr [[TMP1]], i32 0 20; CHECK-NEXT: store <2 x float> [[TMP3]], ptr [[TMP4]], align 4 21; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 2 22; CHECK-NEXT: [[TMP7:%.*]] = icmp eq i64 [[INDEX_NEXT]], 128 23; CHECK-NEXT: br i1 [[TMP7]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] 24; CHECK: middle.block: 25; CHECK-NEXT: br i1 true, label [[EXIT:%.*]], label [[SCALAR_PH]] 26; CHECK: scalar.ph: 27; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 128, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ] 28; CHECK-NEXT: br label [[LOOP:%.*]] 29; CHECK: loop: 30; CHECK-NEXT: [[I:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[I7:%.*]], [[LOOP]] ] 31; CHECK-NEXT: [[I3:%.*]] = load float, ptr null, align 4 32; CHECK-NEXT: [[I4:%.*]] = getelementptr float, ptr @d, i64 [[I]] 33; CHECK-NEXT: [[I5:%.*]] = tail call i1 @llvm.is.fpclass.f32(float [[I3]], i32 0) 34; CHECK-NEXT: [[I6:%.*]] = select i1 [[I5]], float 0.000000e+00, float 0.000000e+00 35; CHECK-NEXT: store float [[I6]], ptr [[I4]], align 4 36; CHECK-NEXT: [[I7]] = add i64 [[I]], 1 37; CHECK-NEXT: [[I8:%.*]] = icmp eq i64 [[I7]], 128 38; CHECK-NEXT: br i1 [[I8]], label [[EXIT]], label [[LOOP]], !llvm.loop [[LOOP3:![0-9]+]] 39; CHECK: exit: 40; CHECK-NEXT: ret void 41; 42entry: 43 br label %loop 44 45loop: 46 %i = phi i64 [ 0, %entry ], [ %i7, %loop ] 47 %i3 = load float, ptr null, align 4 48 %i4 = getelementptr float, ptr @d, i64 %i 49 %i5 = tail call i1 @llvm.is.fpclass.f32(float %i3, i32 0) 50 %i6 = select i1 %i5, float 0.0, float 0.0 51 store float %i6, ptr %i4, align 4 52 %i7 = add i64 %i, 1 53 %i8 = icmp eq i64 %i7, 128 54 br i1 %i8, label %exit, label %loop 55 56exit: 57 ret void 58} 59 60declare i1 @llvm.is.fpclass.f32(float, i32 immarg) 61