================
@@ -128,6 +128,15 @@ static void addLocAccess(MemoryEffects &ME, const
MemoryLocation &Loc,
ME |= MemoryEffects::argMemOnly(MR);
return;
}
+ // TODO: This should be refined to use upcoming Loc.TBAAErrno for errno
+ // memory, rather than manually inspecting the underlying object.
+ if (isa<CallInst>(UO)) {
+ auto *Callee = cast<CallInst>(UO)->getCalledFunction();
+ if (Callee && Callee->getName() == "__errno_location") {
----------------
antoniofrighetto wrote:
Right, clang on Windows links against UCRT, which declares _errno. This has to
be taken into account.
https://github.com/llvm/llvm-project/pull/124742
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