1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2; RUN: llc < %s -mtriple=x86_64-apple-darwin -mattr=+sse2 | FileCheck %s --check-prefix=SSE2
3; RUN: llc < %s -mtriple=x86_64-apple-darwin -mattr=+sse4.1 | FileCheck %s --check-prefix=SSE41
4
5; Make sure that the conversion between v4i8 to v2i16 is not a simple bitcast.
6define void @prom_bug(<4 x i8> %t, i16* %p) {
7; SSE2-LABEL: prom_bug:
8; SSE2:       ## %bb.0:
9; SSE2-NEXT:    movd %xmm0, %eax
10; SSE2-NEXT:    movw %ax, (%rdi)
11; SSE2-NEXT:    retq
12;
13; SSE41-LABEL: prom_bug:
14; SSE41:       ## %bb.0:
15; SSE41-NEXT:    pextrw $0, %xmm0, (%rdi)
16; SSE41-NEXT:    retq
17  %r = bitcast <4 x i8> %t to <2 x i16>
18  %o = extractelement <2 x i16> %r, i32 0
19  store i16 %o, i16* %p
20  ret void
21}
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