https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116274
--- Comment #6 from Hongtao Liu <liuhongt at gcc dot gnu.org> ---
(In reply to Hongtao Liu from comment #5)
> For non-avx case, looks like it hits here
>
> 748 /* Special case TImode to 128-bit vector conversions via V2DI. */
>
Prevent that in reload, we get
.file "test.c"
.text
.p2align 4
.globl testq
.type testq, @function
testq:
.LFB0:
.cfi_startproc
movq %rdi, %xmm1
pinsrq $1, %rsi, %xmm1
movdqa %xmm1, %xmm0
psrldq $8, %xmm0
paddq %xmm1, %xmm0
movq %xmm0, %rax
ret
.cfi_endproc
.LFE0:
.size testq, .-testq
.p2align 4
.globl testw
.type testw, @function
testw:
.LFB1:
.cfi_startproc
movq %rdi, %xmm1
pinsrq $1, %rsi, %xmm1
movdqa %xmm1, %xmm0
psrldq $8, %xmm0
paddw %xmm1, %xmm0
movdqa %xmm0, %xmm1
psrldq $4, %xmm1
paddw %xmm1, %xmm0
movdqa %xmm0, %xmm1
psrldq $2, %xmm1
paddw %xmm1, %xmm0
pextrw $0, %xmm0, %eax
ret
.cfi_endproc
.LFE1:
.size testw, .-testw
.p2align 4
.globl testd
.type testd, @function
testd:
.LFB2:
.cfi_startproc
movq %rdi, %xmm1
pinsrq $1, %rsi, %xmm1
movdqa %xmm1, %xmm0
psrldq $8, %xmm0
paddd %xmm1, %xmm0
movdqa %xmm0, %xmm1
psrldq $4, %xmm1
paddd %xmm1, %xmm0
movd %xmm0, %eax
ret
.cfi_endproc
.LFE2:
