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> --- 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 631ce8309a0..31117a7b0fd 100644 --- a/gcc/common/config/riscv/riscv-common.cc +++ b/gcc/common/config/riscv/riscv-common.cc @@ -77,6 +77,10 @@ static const riscv_implied_info_t riscv_implied_info[] = {"f", "zicsr"}, {"d", "zicsr"}, + {"b", "zba"}, + {"b", "zbb"}, + {"b", "zbs"}, + {"zdinx", "zfinx"}, {"zfinx", "zicsr"}, {"zdinx", "zicsr"}, @@ -235,6 +239,8 @@ 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}, @@ -388,6 +394,7 @@ static const struct riscv_ext_version riscv_ext_version_table[] = /* Combine extensions defined in this table */ static const struct riscv_ext_version riscv_combine_info[] = { + {"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 629bed85347..dcfae732714 100755 --- a/gcc/config/riscv/arch-canonicalize +++ b/gcc/config/riscv/arch-canonicalize @@ -41,6 +41,7 @@ LONG_EXT_PREFIXES = ['z', 's', 'h', 'x'] IMPLIED_EXT = { "d" : ["f", "zicsr"], "f" : ["zicsr"], + "b" : ["zba", "zbb", "zbs"], "zdinx" : ["zfinx", "zicsr"], "zfinx" : ["zicsr"], "zhinx" : ["zhinxmin", "zfinx", "zicsr"], -- 2.34.1
