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aarch64: Add +cpa feature flag

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This doesn't enable anything within the compiler, but this allows the
flag to be passed the assembler.  There also doesn't appear to be a
kernel cpuinfo name yet.

gcc/ChangeLog:

	* config/aarch64/aarch64-arches.def (V9_5A): Add CPA.
	* config/aarch64/aarch64-option-extensions.def (CPA): New.
	* doc/invoke.texi: Document +cpa.
This commit is contained in:
Andrew Carlotti 2025-01-24 11:00:41 +00:00
parent 25464e795e
commit 12b7220dc5
3 changed files with 6 additions and 2 deletions
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2
gcc/config/aarch64/aarch64-arches.def
View file

@ -46,6 +46,6 @@ 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("armv9.5-a", generic_armv9_a, V9_5A, 9, (V9_4A, FAMINMAX, LUT))
AARCH64_ARCH("armv9.5-a", generic_armv9_a, V9_5A, 9, (V9_4A, CPA, FAMINMAX, LUT))
#undef AARCH64_ARCH

2
gcc/config/aarch64/aarch64-option-extensions.def
View file

@ -275,6 +275,8 @@ AARCH64_OPT_EXTENSION("ssve-fp8dot2", SSVE_FP8DOT2, (SSVE_FP8DOT4), (), (), "sme
AARCH64_OPT_EXTENSION("lut", LUT, (SIMD), (), (), "lut")
AARCH64_OPT_EXTENSION("cpa", CPA, (), (), (), "")
#undef AARCH64_OPT_FMV_EXTENSION
#undef AARCH64_OPT_EXTENSION
#undef AARCH64_FMV_FEATURE

4
gcc/doc/invoke.texi
View file

@ -21672,7 +21672,7 @@ and the features that they enable by default:
@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{armv9.5-a} @tab Armv9.4-A @tab @samp{armv9.4-a}, @samp{+faminmax}, @samp{+lut}
@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
@ -22085,6 +22085,8 @@ extension in streaming mode.
Enable the Floating Point Absolute Maximum/Minimum extension.
@item lut
Enable the Lookup Table extension.
@item cpa
Enable the Checked Pointer Arithmetic instructions.
@item sve-b16b16
Enable the SVE non-widening brain floating-point (@code{bf16}) extension.
This only has an effect when @code{sve2} or @code{sme2} are also enabled.