From 75f935365dba3eb5e9cbd11bc0d75009cad3d019 Mon Sep 17 00:00:00 2001
From: Kyrylo Tkachov <kyrylo.tkachov@arm.com>
Date: Tue, 3 Sep 2019 08:06:43 +0000
Subject: [PATCH] [AArch64] Add Linux hwcap strings for some extensions
This patch adds feature strings for some of the extensions. This string is what is read from /proc/cpuinfo on Linux systems
and used during -march=native detection.
The strings are taken from the kernel source tree at:
https://github.com/torvalds/linux/blob/master/arch/arm64/kernel/cpuinfo.c#L45
* config/aarch64/aarch64-option-extensions.def (sb): Add feature
string.
(ssbs): Likewise.
(sve2): Likewise.
(sve2-sm4): Likewise.
(sveaes): Likewise.
(svesha3): Likewise.
(svebitperm): Likewise.
From-SVN: r275331
---
gcc/ChangeLog | 11 +++++++++++
gcc/config/aarch64/aarch64-option-extensions.def | 14 +++++++-------
2 files changed, 18 insertions(+), 7 deletions(-)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 1d20ffc9d5ac..5c4eaf2f6569 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,14 @@
+2019-09-03 Kyrylo Tkachov <kyrylo.tkachov@arm.com>
+
+ * config/aarch64/aarch64-option-extensions.def (sb): Add feature
+ string.
+ (ssbs): Likewise.
+ (sve2): Likewise.
+ (sve2-sm4): Likewise.
+ (sveaes): Likewise.
+ (svesha3): Likewise.
+ (svebitperm): Likewise.
+
2019-09-03 Jakub Jelinek <jakub@redhat.com>
Richard Biener <rguenther@suse.de>
diff --git a/gcc/config/aarch64/aarch64-option-extensions.def b/gcc/config/aarch64/aarch64-option-extensions.def
index 9919edd43d04..de91550a53d8 100644
--- a/gcc/config/aarch64/aarch64-option-extensions.def
+++ b/gcc/config/aarch64/aarch64-option-extensions.def
@@ -155,10 +155,10 @@ AARCH64_OPT_EXTENSION("rng", AARCH64_FL_RNG, 0, 0, false, "")
AARCH64_OPT_EXTENSION("memtag", AARCH64_FL_MEMTAG, 0, 0, false, "")
/* Enabling/Disabling "sb" only changes "sb". */
-AARCH64_OPT_EXTENSION("sb", AARCH64_FL_SB, 0, 0, false, "")
+AARCH64_OPT_EXTENSION("sb", AARCH64_FL_SB, 0, 0, false, "sb")
/* Enabling/Disabling "ssbs" only changes "ssbs". */
-AARCH64_OPT_EXTENSION("ssbs", AARCH64_FL_SSBS, 0, 0, false, "")
+AARCH64_OPT_EXTENSION("ssbs", AARCH64_FL_SSBS, 0, 0, false, "ssbs")
/* Enabling/Disabling "predres" only changes "predres". */
AARCH64_OPT_EXTENSION("predres", AARCH64_FL_PREDRES, 0, 0, false, "")
@@ -169,31 +169,31 @@ AARCH64_OPT_EXTENSION("predres", AARCH64_FL_PREDRES, 0, 0, false, "")
AARCH64_OPT_EXTENSION("sve2", AARCH64_FL_SVE2, AARCH64_FL_SVE | \
AARCH64_FL_FP | AARCH64_FL_SIMD | AARCH64_FL_F16, \
AARCH64_FL_SVE2_AES | AARCH64_FL_SVE2_SHA3 | \
- AARCH64_FL_SVE2_SM4 | AARCH64_FL_SVE2_BITPERM, false, "")
+ AARCH64_FL_SVE2_SM4 | AARCH64_FL_SVE2_BITPERM, false, "sve2")
/* Enabling "sve2-sm4" also enables "sm4", "simd", "fp16", "fp", "sve", and
"sve2". Disabling "sve2-sm4" just disables "sve2-sm4". */
AARCH64_OPT_EXTENSION("sve2-sm4", AARCH64_FL_SVE2_SM4, AARCH64_FL_SM4 | \
AARCH64_FL_SIMD | AARCH64_FL_F16 | AARCH64_FL_FP | \
- AARCH64_FL_SVE | AARCH64_FL_SVE2, 0, false, "")
+ AARCH64_FL_SVE | AARCH64_FL_SVE2, 0, false, "svesm4")
/* Enabling "sve2-aes" also enables "aes", "simd", "fp16", "fp", "sve", and
"sve2". Disabling "sve2-aes" just disables "sve2-aes". */
AARCH64_OPT_EXTENSION("sve2-aes", AARCH64_FL_SVE2_AES, AARCH64_FL_AES | \
AARCH64_FL_SIMD | AARCH64_FL_F16 | AARCH64_FL_FP | \
- AARCH64_FL_SVE | AARCH64_FL_SVE2, 0, false, "")
+ AARCH64_FL_SVE | AARCH64_FL_SVE2, 0, false, "sveaes")
/* Enabling "sve2-sha3" also enables "sha3", "simd", "fp16", "fp", "sve", and
"sve2". Disabling "sve2-sha3" just disables "sve2-sha3". */
AARCH64_OPT_EXTENSION("sve2-sha3", AARCH64_FL_SVE2_SHA3, AARCH64_FL_SHA3 | \
AARCH64_FL_SIMD | AARCH64_FL_F16 | AARCH64_FL_FP | \
- AARCH64_FL_SVE | AARCH64_FL_SVE2, 0, false, "")
+ AARCH64_FL_SVE | AARCH64_FL_SVE2, 0, false, "svesha3")
/* Enabling "sve2-bitperm" also enables "simd", "fp16", "fp", "sve", and
"sve2". Disabling "sve2-bitperm" just disables "sve2-bitperm". */
AARCH64_OPT_EXTENSION("sve2-bitperm", AARCH64_FL_SVE2_BITPERM, AARCH64_FL_SIMD | \
AARCH64_FL_F16 | AARCH64_FL_FP | AARCH64_FL_SVE | \
- AARCH64_FL_SVE2, 0, false, "")
+ AARCH64_FL_SVE2, 0, false, "svebitperm")
/* Enabling or disabling "tme" only changes "tme". */
AARCH64_OPT_EXTENSION("tme", AARCH64_FL_TME, 0, 0, false, "")
--
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