https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112935
Xi Ruoyao <xry111 at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|target |tree-optimization
Target|loongarch64-*-* |
--- Comment #12 from Xi Ruoyao <xry111 at gcc dot gnu.org> ---
This also happens for x86_64, with 13.2:
.L2:
movl %edi, %edx
shrb %dil
xorl %eax, %edx
shrw %ax
andl $1, %edx
negl %edx
andw $-24575, %dx
xorl %edx, %eax
subb $1, %cl
jne .L2
With trunk:
.L2:
mov ecx, edi
shr dil
xor ecx, eax
shr ax
and ecx, 1
lea edx, [rcx+rcx*4]
sal edx, 13
add edx, ecx
xor eax, edx
sub sil, 1
jne .L2
So this seems not only a target issue. I'll move it back to tree-optimization
and open LoongArch cost model issue as a new ticket.
