Sanjay Patel 12d1ce5408 Optimize square root squared (PR21126).
When unsafe-fp-math is enabled, we can turn sqrt(X) * sqrt(X) into X.

This can happen in the real world when calculating x ** 3/2. This occurs
in test-suite/SingleSource/Benchmarks/BenchmarkGame/n-body.c.

Differential Revision: http://reviews.llvm.org/D5584

llvm-svn: 218906
2014-10-02 21:10:54 +00:00
..
2014-10-01 10:07:28 +00:00
2014-07-07 22:13:58 +00:00