Some architecture features have been combined under a single command line flag, but have been assigned multiple FMV feature names with the command line flag name enabling only a subset of these features in the FMV specification. I've proposed reallocating names in the FMV specification to match the command line flags [1], but for GCC 14 we'll just remove them from the FMV feature list.
[1] https://github.com/ARM-software/acle/pull/315 gcc/ChangeLog: * config/aarch64/aarch64-option-extensions.def: Remove "memtag", "memtag2", "ssbs", "ssbs2", "ls64", "ls64_v" and "ls64_accdata" FMV features. diff --git a/gcc/config/aarch64/aarch64-option-extensions.def b/gcc/config/aarch64/aarch64-option-extensions.def index 54bbf9c41e794786dffd69dd103fcbbca0a49f1f..3155eccd39c8e6825b7fc2bb0d0514c2e7e559bf 100644 --- a/gcc/config/aarch64/aarch64-option-extensions.def +++ b/gcc/config/aarch64/aarch64-option-extensions.def @@ -194,17 +194,13 @@ AARCH64_FMV_FEATURE("sve2-sm4", SVE_SM4, (SVE2_SM4)) AARCH64_OPT_FMV_EXTENSION("sme", SME, (BF16, SVE2), (), (), "sme") -AARCH64_OPT_FMV_EXTENSION("memtag", MEMTAG, (), (), (), "") - -AARCH64_FMV_FEATURE("memtag2", MEMTAG2, (MEMTAG)) +AARCH64_OPT_EXTENSION("memtag", MEMTAG, (), (), (), "") AARCH64_OPT_FMV_EXTENSION("sb", SB, (), (), (), "sb") AARCH64_OPT_FMV_EXTENSION("predres", PREDRES, (), (), (), "") -AARCH64_OPT_FMV_EXTENSION("ssbs", SSBS, (), (), (), "ssbs") - -AARCH64_FMV_FEATURE("ssbs2", SSBS2, (SSBS)) +AARCH64_OPT_EXTENSION("ssbs", SSBS, (), (), (), "ssbs") AARCH64_OPT_EXTENSION("profile", PROFILE, (), (), (), "") @@ -214,12 +210,6 @@ AARCH64_OPT_EXTENSION("pauth", PAUTH, (), (), (), "paca pacg") AARCH64_OPT_EXTENSION("ls64", LS64, (), (), (), "") -AARCH64_FMV_FEATURE("ls64", LS64, ()) - -AARCH64_FMV_FEATURE("ls64_v", LS64_V, ()) - -AARCH64_FMV_FEATURE("ls64_accdata", LS64_ACCDATA, (LS64)) - AARCH64_OPT_EXTENSION("sme-f64f64", SME_F64F64, (SME), (), (), "") AARCH64_FMV_FEATURE("sme-f64f64", SME_F64, (SME_F64F64))
