From 808b611bfb4b05703ea174e50874c711dca44c98 Mon Sep 17 00:00:00 2001
From: "H.J. Lu" <hjl.tools@gmail.com>
Date: Fri, 22 May 2020 04:18:34 -0700
Subject: [PATCH] x86: Handle -mavx512vpopcntdq for -march=native
Add -mavx512vpopcntdq for -march=native if AVX512VPOPCNTDQ is available.
PR target/95258
* config/i386/driver-i386.c (host_detect_local_cpu): Detect
AVX512VPOPCNTDQ.
---
gcc/ChangeLog | 6 ++++++
gcc/config/i386/driver-i386.c | 9 ++++++---
2 files changed, 12 insertions(+), 3 deletions(-)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index b0ba14b33056..9106cdb2e72c 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2020-05-22 H.J. Lu <hongjiu.lu@intel.com>
+
+ PR target/95258
+ * config/i386/driver-i386.c (host_detect_local_cpu): Detect
+ AVX512VPOPCNTDQ.
+
2020-05-22 Richard Biener <rguenther@suse.de>
PR tree-optimization/95268
diff --git a/gcc/config/i386/driver-i386.c b/gcc/config/i386/driver-i386.c
index 7612ddfb846e..3a8164007294 100644
--- a/gcc/config/i386/driver-i386.c
+++ b/gcc/config/i386/driver-i386.c
@@ -420,6 +420,7 @@ const char *host_detect_local_cpu (int argc, const char **argv)
unsigned int has_avx5124fmaps = 0, has_avx5124vnniw = 0;
unsigned int has_gfni = 0, has_avx512vbmi2 = 0;
unsigned int has_avx512bitalg = 0;
+ unsigned int has_avx512vpopcntdq = 0;
unsigned int has_shstk = 0;
unsigned int has_avx512vnni = 0, has_vaes = 0;
unsigned int has_vpclmulqdq = 0;
@@ -528,6 +529,7 @@ const char *host_detect_local_cpu (int argc, const char **argv)
has_vaes = ecx & bit_VAES;
has_vpclmulqdq = ecx & bit_VPCLMULQDQ;
has_avx512bitalg = ecx & bit_AVX512BITALG;
+ has_avx512vpopcntdq = ecx & bit_AVX512VPOPCNTDQ;
has_movdiri = ecx & bit_MOVDIRI;
has_movdir64b = ecx & bit_MOVDIR64B;
has_enqcmd = ecx & bit_ENQCMD;
@@ -1189,6 +1191,7 @@ const char *host_detect_local_cpu (int argc, const char **argv)
const char *avx512vp2intersect = has_avx512vp2intersect ? " -mavx512vp2intersect" : " -mno-avx512vp2intersect";
const char *tsxldtrk = has_tsxldtrk ? " -mtsxldtrk " : " -mno-tsxldtrk";
const char *avx512bitalg = has_avx512bitalg ? " -mavx512bitalg" : " -mno-avx512bitalg";
+ const char *avx512vpopcntdq = has_avx512vpopcntdq ? " -mavx512vpopcntdq" : " -mno-avx512vpopcntdq";
const char *movdiri = has_movdiri ? " -mmovdiri" : " -mno-movdiri";
const char *movdir64b = has_movdir64b ? " -mmovdir64b" : " -mno-movdir64b";
const char *enqcmd = has_enqcmd ? " -menqcmd" : " -mno-enqcmd";
@@ -1210,9 +1213,9 @@ const char *host_detect_local_cpu (int argc, const char **argv)
avx512ifma, avx512vbmi, avx5124fmaps, avx5124vnniw,
clwb, mwaitx, clzero, pku, rdpid, gfni, shstk,
avx512vbmi2, avx512vnni, vaes, vpclmulqdq,
- avx512bitalg, movdiri, movdir64b, waitpkg, cldemote,
- ptwrite, avx512bf16, enqcmd, avx512vp2intersect,
- serialize, tsxldtrk, NULL);
+ avx512bitalg, avx512vpopcntdq, movdiri, movdir64b,
+ waitpkg, cldemote, ptwrite, avx512bf16, enqcmd,
+ avx512vp2intersect, serialize, tsxldtrk, NULL);
}
done:
--
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