GCC does not currently emit the wfet or wfit instructions, so this
primarily affects the flags passed through to the assembler.
gcc/ChangeLog:
* config/aarch64/aarch64-arches.def (V8_7A): Add WFXT.
* config/aarch64/aarch64-option-extensions.def (WFXT): New flag.
diff --git a/gcc/config/aarch64/aarch64-arches.def
b/gcc/config/aarch64/aarch64-arches.def
index
f182d3dc6c77bf63ab272ab1b5824c1523390e09..fa06377dda089c8a89628bc4cc66d54510346053
100644
--- a/gcc/config/aarch64/aarch64-arches.def
+++ b/gcc/config/aarch64/aarch64-arches.def
@@ -37,7 +37,7 @@ AARCH64_ARCH("armv8.3-a", generic_armv8_a, V8_3A,
8, (V8_2A, PAUTH, R
AARCH64_ARCH("armv8.4-a", generic_armv8_a, V8_4A, 8, (V8_3A,
F16FML, DOTPROD, FLAGM, RCPC2))
AARCH64_ARCH("armv8.5-a", generic_armv8_a, V8_5A, 8, (V8_4A, SB,
SSBS, PREDRES, FRINTTS, FLAGM2))
AARCH64_ARCH("armv8.6-a", generic_armv8_a, V8_6A, 8, (V8_5A, I8MM,
BF16))
-AARCH64_ARCH("armv8.7-a", generic_armv8_a, V8_7A, 8, (V8_6A))
+AARCH64_ARCH("armv8.7-a", generic_armv8_a, V8_7A, 8, (V8_6A, WFXT))
AARCH64_ARCH("armv8.8-a", generic_armv8_a, V8_8A, 8, (V8_7A, MOPS))
AARCH64_ARCH("armv8.9-a", generic_armv8_a, V8_9A, 8, (V8_8A, CSSC))
AARCH64_ARCH("armv8-r", generic_armv8_a, V8R , 8, (V8_4A))
diff --git a/gcc/config/aarch64/aarch64-option-extensions.def
b/gcc/config/aarch64/aarch64-option-extensions.def
index
b929773eba176a391d6e9242067e4f63e4434637..9781d48f63778d186b66427bae7deb2c01e14107
100644
--- a/gcc/config/aarch64/aarch64-option-extensions.def
+++ b/gcc/config/aarch64/aarch64-option-extensions.def
@@ -220,6 +220,8 @@ AARCH64_OPT_EXTENSION("pauth", PAUTH, (), (), (), "paca
pacg")
AARCH64_OPT_EXTENSION("ls64", LS64, (), (), (), "")
+AARCH64_OPT_FMV_EXTENSION("wfxt", WFXT, (), (), (), "wfxt")
+
AARCH64_OPT_EXTENSION("sme-f64f64", SME_F64F64, (SME), (), (), "")
AARCH64_FMV_FEATURE("sme-f64f64", SME_F64, (SME_F64F64))
