================
@@ -3167,3 +3167,29 @@ void tools::handleInterchangeLoopsArgs(const ArgList
&Args,
options::OPT_fno_loop_interchange, EnableInterchange))
CmdArgs.push_back("-floop-interchange");
}
+
+std::optional<StringRef> tools::ParseMPreferVectorWidthOption(
+ clang::DiagnosticsEngine &Diags, const llvm::opt::ArgList &Args,
+ ArgStringList &CmdArgs, bool isCompilerDriver) {
+ // If this was invoked by the Compiler Driver, we pass through the option
+ // as-is. Otherwise, if this is the Frontend Driver, we want just the value.
+ StringRef Out = (isCompilerDriver) ? "-mprefer-vector-width=" : "";
+
+ Arg *A =
Args.getLastArg(clang::driver::options::OPT_mprefer_vector_width_EQ);
+ if (!A)
+ return std::nullopt;
+
+ StringRef Value = A->getValue();
+ unsigned Width;
----------------
erichkeane wrote:
Seems better instead of removing it to add it as a macro in
`llvm/include/llvm/Support/Compiler.h`
https://github.com/llvm/llvm-project/pull/142800
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