BR 3392362: generate RMI versions of PEXTRW when possible
commit81fd01f9d02a53e0254e585e7a8240164b7628e9
authorH. Peter Anvin <hpa@linux.intel.com>
Wed, 27 Sep 2017 22:54:35 +0000 (27 15:54 -0700)
committerH. Peter Anvin <hpa@linux.intel.com>
Wed, 27 Sep 2017 22:55:57 +0000 (27 15:55 -0700)
tree8e0c4895daff0de58550783d0d1c9cd8844e45ef
parent59d5291a3a3390d729456b9ec40dcaf42eb05ea7
BR 3392362: generate RMI versions of PEXTRW when possible

We could generate the MRI version (SSE 4.1) instead of the RMI
(SSE 2) version of these instructions if a 64-bit register was given
as the destination.

Reported-by: Vasiliy Olekhov <olekhov@gmail.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
test/pextrw.asm [new file with mode: 0644]
x86/insns.dat