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[Bug target/82370] AVX512 can use a memory operand for immediate-count vpsrlw, but gcc doesn't.
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 20 Oct 2017 07:28:57 +0000
- Subject: [Bug target/82370] AVX512 can use a memory operand for immediate-count vpsrlw, but gcc doesn't.
- Auto-submitted: auto-generated
- References: <bug-82370-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82370
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Oct 20 07:28:25 2017
New Revision: 253923
URL: https://gcc.gnu.org/viewcvs?rev=253923&root=gcc&view=rev
Log:
PR target/82370
* config/i386/sse.md (*andnot<mode>3,
<mask_codefor><code><mode>3<mask_name>, *<code><mode>3): Split
(=v,v,vm) alternative into (=x,x,xm) and (=v,v,vm), for 128-bit
and 256-bit vectors, the (=x,x,xm) alternative and when mask is
not applied use empty suffix even for TARGET_AVX512VL.
* config/i386/subst.md (mask_prefix3, mask_prefix4): When mask
is applied, supply evex,evex or evex,evex,evex instead of just
evex.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/i386/sse.md
trunk/gcc/config/i386/subst.md