Hi, This patch fixes a bug in the move_lo_quad_<mode> pattern.
The pattern, shown below, issues a scalar MOV instruction for vector modes:
(define_insn "move_lo_quad_<mode>"
[(set (match_operand:VQ 0 "register_operand" "=w,w,w")
(vec_concat:VQ
(match_operand:<VHALF> 1 "register_operand" "w,r,r")
(vec_duplicate:<VHALF> (const_int 0))))]
"TARGET_SIMD"
"@
mov\\t%d0, %d1
fmov\t%d0, %1
...
This is fixed by using DUP for the first alternative instead.
This passes the full regression test suite in aarch64-elf.
OK for trunk?
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Thanks
Sofiane
aarch64-mov-lo-quad-fix.patch
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