[PATCH] D146054: [RISCV] Add -print-supported-marchs and -march=help support
Craig Topper via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Sun Mar 26 20:27:12 PDT 2023
craig.topper added inline comments.
================
Comment at: clang/include/clang/Driver/Options.td:4346
MarshallingInfoFlag<FrontendOpts<"PrintSupportedCPUs">>;
+def print_supported_marchs : Flag<["-", "--"], "print-supported-marchs">,
+ Group<CompileOnly_Group>, Flags<[CC1Option, CoreOption]>,
----------------
Maybe this should be -print-supported-extensions to match RISC-V terminology?
================
Comment at: clang/include/clang/Driver/Options.td:4349
+ HelpText<"Print supported marchs for the given target (if target is not specified,"
+ " it will print the supported marchs for the default target)">,
+ MarshallingInfoFlag<FrontendOpts<"PrintSupportedMarchs">>;
----------------
There's no default target behavior. It's always RISC-V.
================
Comment at: clang/lib/Driver/Driver.cpp:4232
+ if (!C.getDefaultToolChain().getTriple().isRISCV()) {
+ llvm::errs() << "The -march=help only supports for RISC-V target.\n";
+ return;
----------------
"-march=help is only supported for RISC-V"
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D146054/new/
https://reviews.llvm.org/D146054
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