https://gcc.gnu.org/g:d46be332818361d7a31065c6d46df7181505ab30
commit r15-8290-gd46be332818361d7a31065c6d46df7181505ab30
Author: Kyrylo Tkachov <ktkac...@nvidia.com>
Date: Mon Mar 17 08:24:18 2025 -0700
aarch64: Add +sve2p1 to -march=armv9.4-a flags
The ArmARM says:
"In an Armv9.4 implementation, if FEAT_SVE2 is implemented, FEAT_SVE2p1
is implemented."
We should enable +sve2p1 as part of -march=armv9.4-a, which this patch does.
This makes gcc consistent with gas.
Bootstrapped and tested on aarch64-none-linux-gnu.
Signed-off-by: Kyrylo Tkachov <ktkac...@nvidia.com>
gcc/
* config/aarch64/aarch64-arches.def (...): Add SVE2p1.
* doc/invoke.texi (AArch64 Options): Document +sve2p1 in
-march=armv9.4-a.
Diff:
---
gcc/config/aarch64/aarch64-arches.def | 2 +-
gcc/doc/invoke.texi | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/gcc/config/aarch64/aarch64-arches.def
b/gcc/config/aarch64/aarch64-arches.def
index 34a792d69510..bf56fe9b4449 100644
--- a/gcc/config/aarch64/aarch64-arches.def
+++ b/gcc/config/aarch64/aarch64-arches.def
@@ -45,7 +45,7 @@ AARCH64_ARCH("armv9-a", generic_armv9_a, V9A ,
9, (V8_5A, SVE2))
AARCH64_ARCH("armv9.1-a", generic_armv9_a, V9_1A, 9, (V8_6A, V9A))
AARCH64_ARCH("armv9.2-a", generic_armv9_a, V9_2A, 9, (V8_7A, V9_1A))
AARCH64_ARCH("armv9.3-a", generic_armv9_a, V9_3A, 9, (V8_8A, V9_2A))
-AARCH64_ARCH("armv9.4-a", generic_armv9_a, V9_4A, 9, (V8_9A, V9_3A))
+AARCH64_ARCH("armv9.4-a", generic_armv9_a, V9_4A, 9, (V8_9A, V9_3A,
SVE2p1))
AARCH64_ARCH("armv9.5-a", generic_armv9_a, V9_5A, 9, (V9_4A, CPA,
FAMINMAX, LUT))
#undef AARCH64_ARCH
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 7bef9bbf1c00..1819bcdcdfb9 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -21708,7 +21708,7 @@ and the features that they enable by default:
@item @samp{armv9.1-a} @tab Armv9.1-A @tab @samp{armv9-a}, @samp{+bf16},
@samp{+i8mm}
@item @samp{armv9.2-a} @tab Armv9.2-A @tab @samp{armv9.1-a}, @samp{+wfxt},
@samp{+xs}
@item @samp{armv9.3-a} @tab Armv9.3-A @tab @samp{armv9.2-a}, @samp{+mops}
-@item @samp{armv9.4-a} @tab Armv9.4-A @tab @samp{armv9.3-a}
+@item @samp{armv9.4-a} @tab Armv9.4-A @tab @samp{armv9.3-a}, @samp{+sve2p1}
@item @samp{armv9.5-a} @tab Armv9.4-A @tab @samp{armv9.4-a}, @samp{cpa},
@samp{+faminmax}, @samp{+lut}
@item @samp{armv8-r} @tab Armv8-R @tab @samp{armv8-r}
@end multitable
