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[InstSimplify] Restore fsub 0.0, (fsub 0.0, X) ==> X optzn

Authored by bkramer on Feb 29 2016, 4:18 AM.

Description

[InstSimplify] Restore fsub 0.0, (fsub 0.0, X) ==> X optzn

I accidentally removed this in r262212 but there was no test coverage to
detect it.

llvm-svn: 262215

Details

Committed
bkramerFeb 29 2016, 4:18 AM
Parents
rG76d76bb006c8: Fix compiler warnings in the java code
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