https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96166
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |uros at gcc dot gnu.org
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
So perhaps a peephole2 that matches
(insn 15 6 9 2 (set (reg:V2SI 21 xmm1 [91])
(mem:V2SI (reg/v/f:DI 5 di [orig:86 x ] [86]) [0 MEM <long unsigned
int> [(char * {ref-all})x_2(D)]+0 S8 A8])) "pr96166.c":13:19 1288
{*movv2si_internal}
(nil))
(insn 9 15 10 2 (set (reg:V2SI 20 xmm0 [88])
(vec_select:V2SI (reg:V2SI 21 xmm1 [91])
(parallel [
(const_int 1 [0x1])
(const_int 0 [0])
]))) "pr96166.c":13:19 1410 {*mmx_pshufd_1}
(expr_list:REG_DEAD (reg:V2SI 21 xmm1 [91])
(expr_list:REG_EQUIV (mem:V2SI (reg/v/f:DI 5 di [orig:86 x ] [86]) [0
MEM <long unsigned int> [(char * {ref-all})x_2(D)]+0 S8 A8])
(nil))))
(insn 10 9 17 2 (set (mem:V2SI (reg/v/f:DI 5 di [orig:86 x ] [86]) [0 MEM <long
unsigned int> [(char * {ref-all})x_2(D)]+0 S8 A8])
(reg:V2SI 20 xmm0 [88])) "pr96166.c":13:19 1288 {*movv2si_internal}
(expr_list:REG_DEAD (reg:V2SI 20 xmm0 [88])
(expr_list:REG_DEAD (reg/v/f:DI 5 di [orig:86 x ] [86])
(nil))))
back into the rotate of the MEM?
No other ideas on my side :(
