test/Transforms/LoopVectorize/vector-to-scalar-cast.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; The test was crashing earlier due to a vectorization attempt; vector-to-scalar cast
; is now forbidden in the legalizer, and the test isn't a vectorization candidate now.
; RUN: opt -S -force-widen-divrem-via-safe-divisor=false -force-vector-width=4 --passes=loop-vectorize < %s | FileCheck %s

define void @vector_to_scalar_cast(ptr %out) {
; CHECK-LABEL: define void @vector_to_scalar_cast(
; CHECK-SAME: ptr [[OUT:%.*]]) {
; CHECK-NEXT:  [[ENTRY:.*]]:
; CHECK-NEXT:    [[VEC0:%.*]] = insertelement <2 x i16> undef, i16 0, i64 0
; CHECK-NEXT:    [[VEC1:%.*]] = insertelement <2 x i16> [[VEC0]], i16 0, i64 1
; CHECK-NEXT:    br label %[[LOOP:.*]]
; CHECK:       [[LOOP]]:
; CHECK-NEXT:    [[IV:%.*]] = phi i32 [ [[IV_NEXT:%.*]], %[[LOOP]] ], [ 1, %[[ENTRY]] ]
; CHECK-NEXT:    [[EXITCOND:%.*]] = icmp ne i32 [[IV]], 11
; CHECK-NEXT:    [[IV_NEXT]] = add nuw nsw i32 [[IV]], 1
; CHECK-NEXT:    [[VEC_SCALAR_CAST:%.*]] = bitcast <2 x i16> [[VEC1]] to i32
; CHECK-NEXT:    [[SREM:%.*]] = srem i32 0, [[VEC_SCALAR_CAST]]
; CHECK-NEXT:    store i32 [[SREM]], ptr [[OUT]], align 4
; CHECK-NEXT:    br i1 [[EXITCOND]], label %[[LOOP]], label %[[EXIT:.*]]
; CHECK:       [[EXIT]]:
; CHECK-NEXT:    ret void
;
entry:
  %vec0 = insertelement <2 x i16> undef, i16 0, i64 0
  %vec1 = insertelement <2 x i16> %vec0, i16 0, i64 1
  br label %loop

loop:
  %iv = phi i32 [ %iv.next, %loop ], [ 1, %entry ]
  %exitcond = icmp ne i32 %iv, 11
  %iv.next = add nuw nsw i32 %iv, 1
  %vec.scalar.cast = bitcast <2 x i16> %vec1 to i32
  %srem = srem i32 0, %vec.scalar.cast
  store i32 %srem, ptr %out
  br i1 %exitcond, label %loop, label %exit

exit:
  ret void
}