[llvm-bugs] [Bug 32862] AVX512 _mm512_setzero_ps could save a byte by using a VEX-encoded vxorps xmm instead of EVEX

via llvm-bugs llvm-bugs at lists.llvm.org
Mon Aug 7 03:35:56 PDT 2017


https://bugs.llvm.org/show_bug.cgi?id=32862

Simon Pilgrim <llvm-dev at redking.me.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #7 from Simon Pilgrim <llvm-dev at redking.me.uk> ---
D35839/rL309298 fixed the VEX ymm->xmm zero case and D35965/rL309926 fixed the
EVEX zmm/ymm->xmm zero cases.

There is still an issue with duplicate xmm zero registers that is mentioned on
[Bug #26018]

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