1; RUN: opt -S -passes=loop-vectorize -force-vector-width=4 %s | FileCheck %s 2 3; CHECK-LABEL: @test_fshl 4; CHECK-LABEL: vector.body: 5; CHECK-NEXT: [[IDX:%.+]] = phi i32 [ 0, %vector.ph ], [ %index.next, %vector.body ] 6; CHECK-NEXT: [[IDX0:%.+]] = add i32 %index, 0 7; CHECK-NEXT: [[GEP:%.+]] = getelementptr inbounds i16, ptr %src, i32 [[IDX0]] 8; CHECK-NEXT: [[GEP0:%.+]] = getelementptr inbounds i16, ptr [[GEP]], i32 0 9; CHECK-NEXT: [[WIDE_LOAD:%.+]] = load <4 x i16>, ptr [[GEP0]], align 2 10; CHECK-NEXT: [[FSHL:%.+]] = call <4 x i16> @llvm.fshl.v4i16(<4 x i16> [[WIDE_LOAD]], <4 x i16> [[WIDE_LOAD]], <4 x i16> splat (i16 15)) 11; CHECK-NEXT: [[GEP0:%.+]] = getelementptr inbounds i16, ptr %dst, i32 [[IDX0]] 12; CHECK-NEXT: [[GEP1:%.+]] = getelementptr inbounds i16, ptr [[GEP0]], i32 0 13; CHECK-NEXT: store <4 x i16> [[FSHL]], ptr [[GEP1]], align 2 14; CHECK-NEXT: [[IDX_NEXT:%.+]] = add nuw i32 [[IDX]], 4 15; CHECK-NEXT: [[EC:%.+]] = icmp eq i32 [[IDX_NEXT]], %n.vec 16; CHECK-NEXT: br i1 [[EC]], label %middle.block, label %vector.body 17; 18define void @test_fshl(i32 %width, ptr %dst, ptr %src) { 19entry: 20 br label %for.body9.us.us 21 22for.cond6.for.cond.cleanup8_crit_edge.us.us: ; preds = %for.body9.us.us 23 ret void 24 25for.body9.us.us: ; preds = %for.body9.us.us, %entry 26 %iv = phi i32 [ 0, %entry ], [ %iv.next, %for.body9.us.us ] 27 %gep = getelementptr inbounds i16, ptr %src, i32 %iv 28 %l = load i16, ptr %gep 29 %conv4.i.us.us = tail call i16 @llvm.fshl.i16(i16 %l, i16 %l, i16 15) 30 %dst.gep = getelementptr inbounds i16, ptr %dst, i32 %iv 31 store i16 %conv4.i.us.us, ptr %dst.gep 32 %iv.next = add nuw i32 %iv, 1 33 %exitcond50 = icmp eq i32 %iv.next, %width 34 br i1 %exitcond50, label %for.cond6.for.cond.cleanup8_crit_edge.us.us, label %for.body9.us.us 35} 36 37declare i16 @llvm.fshl.i16(i16, i16, i16) 38