Dan Gohman 760f86f339 Don't create ISD::FNEG nodes after legalize if they aren't legal. ... Simplify x+0 to x in unsafe-fp-math mode. This avoids a bunch of redundant work in many cases, because in unsafe-fp-math mode, ISD::FADD with a constant is considered free to negate, so the DAGCombiner often negates x+0 to -0-x thinking it's free, when in reality the end result is -x, which is more expensive than x. Also, combine x*0 to 0. This fixes PR3374. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62789 91177308-0d34-0410-b5e6-96231b3b80d8		2009-01-22 21:58:43 +00:00
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Alpha	Fix Alpha test and support for private linkage.	2009-01-15 21:51:46 +00:00
ARM	Add the private linkage.	2009-01-15 20:18:42 +00:00
CBackend	Fix PR2907 by digging through constant expressions to find FP constants that	2008-10-22 04:53:16 +00:00
CellSPU	Don't rely on grep -w working.	2009-01-21 09:41:42 +00:00
CPP	Put CPPBackend tests into their own directory and run them only if they're	2008-07-10 22:35:32 +00:00
Generic	Let's try to have our cake and eat it to: move	2009-01-21 11:37:31 +00:00
IA64	Add the private linkage.	2009-01-15 20:18:42 +00:00
Mips	Add the private linkage.	2009-01-15 20:18:42 +00:00
PowerPC	Fix PPC ISD::Declare isel and eliminate the need for PPCTargetLowering::LowerGlobalAddress to check if isVerifiedDebugInfoDesc() is true. Given the recent changes, it would falsely return true for a lot of GlobalAddressSDNode's.	2009-01-16 22:57:32 +00:00
SPARC	Add the private linkage.	2009-01-15 20:18:42 +00:00
X86	Don't create ISD::FNEG nodes after legalize if they aren't legal.	2009-01-22 21:58:43 +00:00
XCore	Add the private linkage.	2009-01-15 20:18:42 +00:00