Hi all,
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
Bootstrapped and tested on aarch64-none-linux-gnu.
Ok for trunk?
Thanks,
Kyrill
2019-08-23 Kyrylo Tkachov <kyrylo.tkac...@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.
diff --git a/gcc/config/aarch64/aarch64-option-extensions.def b/gcc/config/aarch64/aarch64-option-extensions.def
index 9919edd43d04db107f745b546d6586c43c51913f..de91550a53d8dae512f2d6c4bd57aae313c13973 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, "")
