[PATCH] D99773: [InstCombine] when calling conventions are compatible, don't convert the call to undef idiom

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri accepted this revision.
lebedev.ri added a comment.
This revision is now accepted and ready to land.

LGTM, since we were already doing that in SimplifyLibCalls.



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Comment at: llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp:2121-2122
 
     // If the call and callee calling conventions don't match, this call must
     // be unreachable, as the call is undefined.
+    if ((CalleeF->getCallingConv() != Call.getCallingConv() &&
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https://reviews.llvm.org/D99773