From: liuhongt <hongtao.liu@intel.com>
Date: Wed, 16 Aug 2023 02:07:15 +0000 (+0800)
Subject: Support -m[no-]gather to enable/disable vectorization for all gather instructions
X-Git-Tag: releases/gcc-11.5.0~631
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ff4590bb91c80f119dfeb465bf41441d35ef49d2;p=thirdparty%2Fgcc.git

Support -m[no-]gather to enable/disable vectorization for all gather instructions

gcc/ChangeLog:

	* config/i386/i386.opt: Add new option mgather.
---

diff --git a/gcc/config/i386/i386.opt b/gcc/config/i386/i386.opt
index 098a9ca20731..9381025b667d 100644
--- a/gcc/config/i386/i386.opt
+++ b/gcc/config/i386/i386.opt
@@ -1194,3 +1194,7 @@ Emit GNU_PROPERTY_X86_ISA_1_NEEDED GNU property.
 mmwait
 Target Mask(ISA2_MWAIT) Var(ix86_isa_flags2) Save
 Support MWAIT and MONITOR built-in functions and code generation.
+
+mgather
+Target Alias(mtune-ctrl=, use_gather, ^use_gather)
+Enable vectorization for gather instruction.