Fix PR7272: when inlining through a callsite with byval arguments,
the newly created allocas may be used by inlined calls, so these
need to have their tail call flags cleared. Fixes PR7272.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105255 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Utils/InlineFunction.cpp b/lib/Transforms/Utils/InlineFunction.cpp
index 91390bc..79c667a 100644
--- a/lib/Transforms/Utils/InlineFunction.cpp
+++ b/lib/Transforms/Utils/InlineFunction.cpp
@@ -351,6 +351,10 @@
// Uses of the argument in the function should use our new alloca
// instead.
ActualArg = NewAlloca;
+
+ // Calls that we inline may use the new alloca, so we need to clear
+ // their 'tail' flags.
+ MustClearTailCallFlags = true;
}
ValueMap[I] = ActualArg;