Kristof Beyls e6b876f4e5 Fix constant folding through bitcasts by no longer relying on undefined behaviour (converting NaN values between float and double). ...

SelectionDAG::getConstantFP(double Val, EVT VT, bool isTarget);
should not be used when Val is not a simple constant (as the comment in
SelectionDAG.h indicates). This patch avoids using this function
when folding an unknown constant through a bitcast, where it cannot be
guaranteed that Val will be a simple constant.

llvm-svn: 163703

2012-09-12 11:25:02 +00:00

1.4 KiB

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