https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91188
--- Comment #3 from Uroš Bizjak <ubizjak at gmail dot com> ---
The testcase involving HImode pattern:
--cut here--
struct S1
{
unsigned short val;
unsigned short pad1;
};
struct S1
__attribute__((noinline))
test_andw (struct S1 a, unsigned short b)
{
a.val &= b;
return a;
}
--cut here--
gcc -O2:
test_andw:
movl %edi, %eax # 2 [c=4 l=2] *movsi_internal/0
andw %si, %ax # 9 [c=4 l=3] *andhi_1_slp
ret # 23 [c=0 l=1] simple_return_internal
