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Commit 4d7738df authored by Elena Demikhovsky's avatar Elena Demikhovsky
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Optimized FMA intrinsic + FNEG , like

-(a*b+c)

and FNEG + FMA, like
a*b-c or (-a)*b+c.

The bug description is here :  https://llvm.org/bugs/show_bug.cgi?id=28892

Differential revision: https://reviews.llvm.org/D23313

llvm-svn: 280368
parent 29afb193
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