[PATCH] D81232: Correctly report modified status for TailRecursionElimination

[serge via Phabricator via llvm-commits]

serge-sans-paille created this revision.
serge-sans-paille added reviewers: jdoerfert, nikic, foad.
Herald added subscribers: llvm-commits, laytonio, hiraditya.
Herald added a project: LLVM.

Related to https://reviews.llvm.org/D80916


https://reviews.llvm.org/D81232

Files:
  llvm/lib/Transforms/Scalar/TailRecursionElimination.cpp


Index: llvm/lib/Transforms/Scalar/TailRecursionElimination.cpp
===================================================================
--- llvm/lib/Transforms/Scalar/TailRecursionElimination.cpp
+++ llvm/lib/Transforms/Scalar/TailRecursionElimination.cpp
@@ -862,7 +862,7 @@
   // If this function is a varargs function, we won't be able to PHI the args
   // right, so don't even try to convert it...
   if (F.getFunctionType()->isVarArg())
-    return false;
+    return MadeChange;
 
   // If false, we cannot perform TRE on tail calls marked with the 'tail'
   // attribute, because doing so would cause the stack size to increase (real


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