This patch adds support for recognizing the B standard extension to be the collection of Zba, Zbb, Zbs extensions for consistency and conciseness across toolchains
* https://github.com/riscv/riscv-b/tags gcc/ChangeLog: * common/config/riscv/riscv-common.cc: Add imply rules for B extension * config/riscv/arch-canonicalize: Ditto Signed-off-by: Edwin Lu <e...@rivosinc.com> --- V2: Add b to riscv_combine_info --- gcc/common/config/riscv/riscv-common.cc | 7 +++++++ gcc/config/riscv/arch-canonicalize | 1 + 2 files changed, 8 insertions(+) diff --git a/gcc/common/config/riscv/riscv-common.cc b/gcc/common/config/riscv/riscv-common.cc index dab2e767965..b0a16f5bd30 100644 --- a/gcc/common/config/riscv/riscv-common.cc +++ b/gcc/common/config/riscv/riscv-common.cc @@ -84,6 +84,10 @@ static const riscv_implied_info_t riscv_implied_info[] = {"zabha", "zaamo"}, + {"b", "zba"}, + {"b", "zbb"}, + {"b", "zbs"}, + {"zdinx", "zfinx"}, {"zfinx", "zicsr"}, {"zdinx", "zicsr"}, @@ -245,6 +249,8 @@ static const struct riscv_ext_version riscv_ext_version_table[] = {"c", ISA_SPEC_CLASS_20190608, 2, 0}, {"c", ISA_SPEC_CLASS_2P2, 2, 0}, + {"b", ISA_SPEC_CLASS_NONE, 1, 0}, + {"h", ISA_SPEC_CLASS_NONE, 1, 0}, {"v", ISA_SPEC_CLASS_NONE, 1, 0}, @@ -405,6 +411,7 @@ static const struct riscv_ext_version riscv_ext_version_table[] = static const struct riscv_ext_version riscv_combine_info[] = { {"a", ISA_SPEC_CLASS_20191213, 2, 1}, + {"b", ISA_SPEC_CLASS_NONE, 1, 0}, {"zk", ISA_SPEC_CLASS_NONE, 1, 0}, {"zkn", ISA_SPEC_CLASS_NONE, 1, 0}, {"zks", ISA_SPEC_CLASS_NONE, 1, 0}, diff --git a/gcc/config/riscv/arch-canonicalize b/gcc/config/riscv/arch-canonicalize index 35a7fe4455a..2ea514dd986 100755 --- a/gcc/config/riscv/arch-canonicalize +++ b/gcc/config/riscv/arch-canonicalize @@ -45,6 +45,7 @@ IMPLIED_EXT = { "zabha" : ["zaamo"], "f" : ["zicsr"], + "b" : ["zba", "zbb", "zbs"], "zdinx" : ["zfinx", "zicsr"], "zfinx" : ["zicsr"], "zhinx" : ["zhinxmin", "zfinx", "zicsr"], -- 2.34.1
