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f06073dcb8
StackColoring rewrites the frame indicies of operations involving allocas if it can find that the life time of two objects do not overlap. MSVC EH needs to be kept aware of this if happens in the event that a catch object has moved around. However, we represent the non-existance of a catch object with a sentinel frame index (INT_MAX). This sentinel also happens to be the EmptyKey of the SlotRemap DenseMap. Testing for whether or not we need to translate the frame index fails in this case because we call the count method on the DenseMap with the EmptyKey, leading to assertions. Instead, check if it is our sentinel value before trying to look into the DenseMap. This fixes PR26073. llvm-svn: 257182 |
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