Add the `+cmpbr` option to enable the FEAT_CMPBR architectural extension. gcc/ChangeLog:
* config/aarch64/aarch64-option-extensions.def (cmpbr): new option. * config/aarch64/aarch64.h (TARGET_CMPBR): new macro. * doc/invoke.texi (cmpbr): new option. --- gcc/config/aarch64/aarch64-option-extensions.def | 2 ++ gcc/config/aarch64/aarch64.h | 3 +++ gcc/doc/invoke.texi | 3 +++ 3 files changed, 8 insertions(+) diff --git a/gcc/config/aarch64/aarch64-option-extensions.def b/gcc/config/aarch64/aarch64-option-extensions.def index dbbb021f05a..1c3e69799f5 100644 --- a/gcc/config/aarch64/aarch64-option-extensions.def +++ b/gcc/config/aarch64/aarch64-option-extensions.def @@ -249,6 +249,8 @@ AARCH64_OPT_EXTENSION("mops", MOPS, (), (), (), "mops") AARCH64_OPT_EXTENSION("cssc", CSSC, (), (), (), "cssc") +AARCH64_OPT_EXTENSION("cmpbr", CMPBR, (), (), (), "cmpbr") + AARCH64_OPT_EXTENSION("lse128", LSE128, (LSE), (), (), "lse128") AARCH64_OPT_EXTENSION("d128", D128, (LSE128), (), (), "d128") diff --git a/gcc/config/aarch64/aarch64.h b/gcc/config/aarch64/aarch64.h index e8bd8c73c12..d5c4a42e96d 100644 --- a/gcc/config/aarch64/aarch64.h +++ b/gcc/config/aarch64/aarch64.h @@ -410,6 +410,9 @@ constexpr auto AARCH64_FL_DEFAULT_ISA_MODE ATTRIBUTE_UNUSED /* CSSC instructions are enabled through +cssc. */ #define TARGET_CSSC AARCH64_HAVE_ISA (CSSC) +/* CB<cc> instructions are enabled through +cmpbr. */ +#define TARGET_CMPBR AARCH64_HAVE_ISA (CMPBR) + /* Make sure this is always defined so we don't have to check for ifdefs but rather use normal ifs. */ #ifndef TARGET_FIX_ERR_A53_835769_DEFAULT diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 32bc45725de..3f05e5e0e34 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -22252,6 +22252,9 @@ Enable the FlagM2 flag conversion instructions. Enable the Pointer Authentication Extension. @item cssc Enable the Common Short Sequence Compression instructions. +@item cmpbr +Enable the shorter compare and branch instructions, @code{cbb}, @code{cbh} and +@code{cb}. @item sme Enable the Scalable Matrix Extension. This is only supported when SVE2 is also enabled. -- 2.45.2