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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ARM	Add DAG-combines for aggressive FMA formation.	2012-06-19 22:51:23 +00:00
CellSPU
CPP
Generic	Fix test case to work on ARM.	2012-06-11 16:01:14 +00:00
Hexagon	Enable all Hexagon tests.	2012-05-15 16:13:12 +00:00
MBlaze
Mips	1. introduce MipsPat in place of Pat in order to exclude those from	2012-06-14 21:03:23 +00:00
MSP430	These tests used intrinsics with the wrong prototype. They weren't caught because	2012-05-27 19:35:41 +00:00
NVPTX	Add llvm.fabs intrinsic.	2012-05-28 21:48:37 +00:00
PowerPC	Add DAG-combines for aggressive FMA formation.	2012-06-19 22:51:23 +00:00
SPARC
Thumb
Thumb2	Add a test case for global live range splitting.	2012-05-23 23:42:23 +00:00
X86	really add a triple :-(	2012-06-19 02:17:35 +00:00
XCore	Fix pattern for MKMSK instruction.	2012-06-13 17:59:12 +00:00