https://gcc.gnu.org/g:0b79d8b98ec086fccd4714c1ff66ff4382780183
commit r15-6023-g0b79d8b98ec086fccd4714c1ff66ff4382780183
Author: Kyrylo Tkachov <ktkac...@nvidia.com>
Date: Tue Dec 3 04:12:09 2024 -0800
aarch64: Update cpuinfo strings for some arch features
The entries for some recently-added arch features were missing the cpuinfo
string used in -march=native detection. Presumably the Linux kernel had not
specified such a string at the time the GCC support was added.
But I see that current versions of Linux do have strings for these features
in the arch/arm64/kernel/cpuinfo.c file in the kernel tree.
This patch adds them. This fixes the strings for the f32mm and f64mm
features
which I think were using the wrong string. The kernel exposes them with an
"sve" prefix.
Bootstrapped and tested on aarch64-none-linux-gnu.
Signed-off-by: Kyrylo Tkachov <ktkac...@nvidia.com>
gcc/
* config/aarch64/aarch64-option-extensions.def (sve-b16b16,
f32mm, f64mm, sve2p1, sme-f64f64, sme-i16i64, sme-b16b16,
sme-f16f16, mops): Update FEATURE_STRING field.
Diff:
---
gcc/config/aarch64/aarch64-option-extensions.def | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)
diff --git a/gcc/config/aarch64/aarch64-option-extensions.def
b/gcc/config/aarch64/aarch64-option-extensions.def
index 52c3e7b57668..eb0459d2962d 100644
--- a/gcc/config/aarch64/aarch64-option-extensions.def
+++ b/gcc/config/aarch64/aarch64-option-extensions.def
@@ -166,13 +166,13 @@ AARCH64_FMV_FEATURE("rpres", RPRES, ())
AARCH64_OPT_FMV_EXTENSION("sve", SVE, (SIMD, F16), (), (), "sve")
/* This specifically does not imply +sve. */
-AARCH64_OPT_EXTENSION("sve-b16b16", SVE_B16B16, (), (), (), "")
+AARCH64_OPT_EXTENSION("sve-b16b16", SVE_B16B16, (), (), (), "sveb16b16")
-AARCH64_OPT_EXTENSION("f32mm", F32MM, (SVE), (), (), "f32mm")
+AARCH64_OPT_EXTENSION("f32mm", F32MM, (SVE), (), (), "svef32mm")
AARCH64_FMV_FEATURE("f32mm", SVE_F32MM, (F32MM))
-AARCH64_OPT_EXTENSION("f64mm", F64MM, (SVE), (), (), "f64mm")
+AARCH64_OPT_EXTENSION("f64mm", F64MM, (SVE), (), (), "svef64mm")
AARCH64_FMV_FEATURE("f64mm", SVE_F64MM, (F64MM))
@@ -195,7 +195,7 @@ AARCH64_OPT_EXTENSION("sve2-sm4", SVE2_SM4, (SVE2, SM4),
(), (), "svesm4")
AARCH64_FMV_FEATURE("sve2-sm4", SVE_SM4, (SVE2_SM4))
-AARCH64_OPT_EXTENSION("sve2p1", SVE2p1, (SVE2), (), (), "")
+AARCH64_OPT_EXTENSION("sve2p1", SVE2p1, (SVE2), (), (), "sve2p1")
AARCH64_OPT_FMV_EXTENSION("sme", SME, (BF16, SVE2), (), (), "sme")
@@ -215,11 +215,11 @@ AARCH64_OPT_EXTENSION("pauth", PAUTH, (), (), (), "paca
pacg")
AARCH64_OPT_EXTENSION("ls64", LS64, (), (), (), "")
-AARCH64_OPT_EXTENSION("sme-f64f64", SME_F64F64, (SME), (), (), "")
+AARCH64_OPT_EXTENSION("sme-f64f64", SME_F64F64, (SME), (), (), "smef64f64")
AARCH64_FMV_FEATURE("sme-f64f64", SME_F64, (SME_F64F64))
-AARCH64_OPT_EXTENSION("sme-i16i64", SME_I16I64, (SME), (), (), "")
+AARCH64_OPT_EXTENSION("sme-i16i64", SME_I16I64, (SME), (), (), "smei16i64")
AARCH64_FMV_FEATURE("sme-i16i64", SME_I64, (SME_I16I64))
@@ -227,11 +227,11 @@ AARCH64_OPT_FMV_EXTENSION("sme2", SME2, (SME), (), (),
"sme2")
AARCH64_OPT_EXTENSION("sme2p1", SME2p1, (SME2), (), (), "sme2p1")
-AARCH64_OPT_EXTENSION("sme-b16b16", SME_B16B16, (SME2, SVE_B16B16), (), (), "")
+AARCH64_OPT_EXTENSION("sme-b16b16", SME_B16B16, (SME2, SVE_B16B16), (), (),
"smeb16b16")
-AARCH64_OPT_EXTENSION("sme-f16f16", SME_F16F16, (SME2), (), (), "")
+AARCH64_OPT_EXTENSION("sme-f16f16", SME_F16F16, (SME2), (), (), "smef16f16")
-AARCH64_OPT_EXTENSION("mops", MOPS, (), (), (), "")
+AARCH64_OPT_EXTENSION("mops", MOPS, (), (), (), "mops")
AARCH64_OPT_EXTENSION("cssc", CSSC, (), (), (), "cssc")
