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Author SHA1 Message Date
Chad Rosier 90a2f9b110 Revert "[Reassociate] As the expression tree is rewritten make sure the operands are" 
This reverts commit r222142.  This is causing/exposing an execution-time regression
in spec2006/gcc and coremark on AArch64/A57/Ofast.

Conflicts:

	test/Transforms/Reassociate/optional-flags.ll

llvm-svn: 222398
 2014-11-19 23:21:20 +00:00
Chad Rosier bc0b869be9 [Reassociate] As the expression tree is rewritten make sure the operands are 
emitted in canonical form.

llvm-svn: 222142
 2014-11-17 16:33:50 +00:00
Chad Rosier 11ab941644 [Reassociation] Add support for reassociation with unsafe algebra. 
Vector instructions are (still) not supported for either integer or floating
point.  Hopefully, that work will be landed shortly.

llvm-svn: 215647
 2014-08-14 15:23:01 +00:00