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 <ktkachov@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 --git a/gcc/config/aarch64/aarch64-option-extensions.def b/gcc/config/aarch64/aarch64-option-extensions.def
index 52c3e7b576687621704fecc23a90efd4da3ed2a2..eb0459d2962d67b94a0a3c38c30fb0992d04ab59 100644 (file)
--- 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")