[Bug tree-optimization/49234] [4.5/4.6/4.7/4.8 Regression] -Wstrict-overflow gives obviously unwarranted warning

[ian at airs dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49234



Ian Lance Taylor <ian at airs dot com> changed:



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--- Comment #11 from Ian Lance Taylor <ian at airs dot com> 2013-03-01 14:52:53 
UTC ---

I suspect we can handle this case by observing that all the incoming values to

the PHI node are constants.



It's true that strict overflow warnings are my fault but I believe it was a

necessary move to keep people from turning on -fwrapv.