tree 7c22945cf281b7b5c3211f51b8ff037b251fb915
parent 447c9ea9e1aa98e11664645d0772071c912301f0
author Andrew Kaylor <andrew.kaylor@intel.com> 1446660641 +0000
committer Andrew Kaylor <andrew.kaylor@intel.com> 1446660641 +0000

Created new X86 FMA3 opcodes (FMA*_Int) that are used now for lowering of scalar FMA intrinsics.

Patch by Slava Klochkov 

The key difference between FMA* and FMA*_Int opcodes is that FMA*_Int opcodes are handled more conservatively. It is illegal to commute the 1st operand of FMA*_Int instructions as the upper bits of scalar FMA intrinsic result must be taken from the 1st operand, but such commute transformation would change those upper bits and invalidate the intrinsic's result.

Reviewers: Quentin Colombet, Elena Demikhovsky

Differential Revision: http://reviews.llvm.org/D13710


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252060 91177308-0d34-0410-b5e6-96231b3b80d8