================
@@ -264,6 +273,14 @@ ToolChain::getMultilibFlags(const llvm::opt::ArgList
&Args) const {
break;
}
+ // Include fno-exceptions and fno-rtti
+ // to improve multilib selection
+ if (getRTTIMode() == ToolChain::RTTIMode::RM_Disabled)
+ Result.push_back("-fno-rtti");
----------------
domin144 wrote:
Could we have a positive flag, too?
I know it is not useful for now, as we are not able to say, that some feature
of a standard library is available - only that it is allowed. However, if in
the future such mechanism was added, than I think it would be more natural to
say:
"If user specifies '-frtti', then the library candidate also needs '-frtti'"
than to say:
"If user specifies '-fno-rtti', than the library is allowed to have
'-fno-rtti'".
https://github.com/llvm/llvm-project/pull/75031
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