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=CHECK --check-prefix=SSE2
3 ; RUN: llc < %s -mtriple=x86_64-apple-darwin -mattr=+sse4.1 | FileCheck %s --check-prefix=CHECK --check-prefix=SSE41
5 ; Make sure that the conversion between v4i8 to v2i16 is not a simple bitcast.
6 define void @prom_bug(<4 x i8> %t, i16* %p) {
7 ; SSE2-LABEL: prom_bug:
9 ; SSE2-NEXT: pand {{.*}}(%rip), %xmm0
10 ; SSE2-NEXT: packuswb %xmm0, %xmm0
11 ; SSE2-NEXT: packuswb %xmm0, %xmm0
12 ; SSE2-NEXT: pextrw $0, %xmm0, %eax
13 ; SSE2-NEXT: movw %ax, (%rdi)
16 ; SSE41-LABEL: prom_bug:
18 ; SSE41-NEXT: pshufb {{.*#+}} xmm0 = xmm0[0,4,8,12,u,u,u,u,u,u,u,u,u,u,u,u]
19 ; SSE41-NEXT: pextrw $0, %xmm0, (%rdi)
21 %r = bitcast <4 x i8> %t to <2 x i16>
22 %o = extractelement <2 x i16> %r, i32 0