https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98856
Hongtao Liu <liuhongt at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |liuhongt at gcc dot gnu.org
--- Comment #47 from Hongtao Liu <liuhongt at gcc dot gnu.org> ---
Created attachment 58746
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=58746&action=edit
Accoate v2di with GPR
The attached patch can allocated V2DI with GPR to avoid spill.
poly_double_le2:
.LFB0:
.cfi_startproc
movq %rdi, %rdx
movq 8(%rsi), %rdi
movq (%rsi), %rsi
movq %rdi, %rax
movq %rsi, %rcx
vmovq %rsi, %xmm4
sarq $63, %rax
shrq $63, %rcx
vpinsrq $1, %rdi, %xmm4, %xmm3
andl $135, %eax
vpsllq $1, %xmm3, %xmm1
vmovq %rax, %xmm2
vpinsrq $1, %rcx, %xmm2, %xmm0
vpxor %xmm1, %xmm0, %xmm0
vmovdqu %xmm0, (%rdx)
ret
.cfi_endproc
But when there's (subreg:V (reg:TI 0)) for other vector modes, the issue could
be still there.
