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Re: [PATCH, i386]: Implement AVX2 all-ones load using vpcmpeqd insn
On Thu, Sep 8, 2011 at 8:26 PM, Uros Bizjak <ubizjak@gmail.com> wrote:
> Hello!
>
> 2011-09-08 ?Uros Bizjak ?<ubizjak@gmail.com>
>
> ? ? ? ?* config/i386/i386.c (standard_sse_constant_p): Handle AVX2 modes.
> ? ? ? ?(standard_sse_constant_opcode) <case 2>: Change vpcmpeqd template.
>
> testsuite/ChangeLog:
>
> 2011-09-08 ?Uros Bizjak ?<ubizjak@gmail.com>
>
> ? ? ? ?* gcc.target/i386/all_one_m256i.c: New test.
>
> Tested on x86_64-pc-linux-gnu {,-m32}, committed to mainline SVN.
The sse_constant_opcode_p part of the patch should in fact read:
case 2:
if (TARGET_AVX)
return "vpcmpeqd\t%0, %0, %0";
else
return "pcmpeqd\t%0>
Uros.