Lang Hames d693cafcfb Add DAG-combines for aggressive FMA formation. ... This patch adds DAG combines to form FMAs from pairs of FADD + FMUL or FSUB + FMUL. The combines are performed when: (a) Either AllowExcessFPPrecision option (-enable-excess-fp-precision for llc) OR UnsafeFPMath option (-enable-unsafe-fp-math) are set, and (b) TargetLoweringInfo::isFMAFasterThanMulAndAdd(VT) is true for the type of the FADD/FSUB, and (c) The FMUL only has one user (the FADD/FSUB). If your target has fast FMA instructions you can make use of these combines by overriding TargetLoweringInfo::isFMAFasterThanMulAndAdd(VT) to return true for types supported by your FMA instruction, and adding patterns to match ISD::FMA to your FMA instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158757 91177308-0d34-0410-b5e6-96231b3b80d8		2012-06-19 22:51:23 +00:00
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Mangler.h
Target.td	Teach tblgen's set theory "sequence" operator to support an optional stride operand.	2012-05-24 21:37:08 +00:00
TargetCallingConv.h	Convert comments to proper Doxygen comments.	2012-06-09 00:01:45 +00:00
TargetCallingConv.td
TargetData.h	Convert comments to proper Doxygen comments.	2012-06-09 00:01:45 +00:00
TargetELFWriterInfo.h	[Hexagon] Clean up Hexagon ELF definition.	2012-05-17 16:46:46 +00:00
TargetFrameLowering.h
TargetInstrInfo.h	*typo: Cyles changed to Cycles	2012-06-13 15:53:04 +00:00
TargetIntrinsicInfo.h
TargetJITInfo.h
TargetLibraryInfo.h
TargetLowering.h	Add a new intrinsic: llvm.fmuladd. This intrinsic represents a multiply-add	2012-06-05 19:07:46 +00:00
TargetLoweringObjectFile.h
TargetMachine.h
TargetOpcodes.h
TargetOptions.h	Add DAG-combines for aggressive FMA formation.	2012-06-19 22:51:23 +00:00
TargetRegisterInfo.h	Add a PrintRegUnit helper similar to PrintReg.	2012-05-31 17:18:29 +00:00
TargetSchedule.td	misched: Added MultiIssueItineraries.	2012-06-05 03:44:40 +00:00
TargetSelectionDAG.td
TargetSelectionDAGInfo.h
TargetSubtargetInfo.h