Jakob Stoklund Olesen 352aa503fa Add a late SSEDomainFix pass that twiddles SSE instructions to avoid domain crossings. ... On Nehalem and newer CPUs there is a 2 cycle latency penalty on using a register in a different domain than where it was defined. Some instructions have equvivalents for different domains, like por/orps/orpd. The SSEDomainFix pass tries to minimize the number of domain crossings by changing between equvivalent opcodes where possible. This is a work in progress, in particular the pass doesn't do anything yet. SSE instructions are tagged with their execution domain in TableGen using the last two bits of TSFlags. Note that not all instructions are tagged correctly. Life just isn't that simple. The SSE execution domain issue is very similar to the ARM NEON/VFP pipeline issue handled by NEONMoveFixPass. This pass may become target independent to handle both. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99524 91177308-0d34-0410-b5e6-96231b3b80d8		2010-03-25 17:25:00 +00:00
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Analysis	Reapply r99451 with a fix to move the NoInline check to the cost functions	2010-03-25 04:49:10 +00:00
Archive	From PR6228:	2010-02-04 06:19:43 +00:00
AsmParser	Introduce isOpaqueTy and use it rather than isa<OpaqueType>. Also, move some	2010-02-16 14:50:09 +00:00
Bitcode	Finally land the InvokeInst operand reordering.	2010-03-24 13:21:49 +00:00
CodeGen	Add comment.	2010-03-25 15:09:44 +00:00
CompilerDriver	Use FindExecutable as a fall-back search method.	2010-03-05 04:46:28 +00:00
ExecutionEngine	Avoid a memory leak in JITDebugRegisterer.	2010-03-16 05:54:54 +00:00
Linker	Introduce isOpaqueTy and use it rather than isa<OpaqueType>. Also, move some	2010-02-16 14:50:09 +00:00
MC	MC/Mach-O: Switch to MCSectionData::getOrdinal.	2010-03-25 08:08:54 +00:00
Support	Fix minor style issues.	2010-03-24 19:38:02 +00:00
System	Fix a false-positive memory leak in code using RemoveFileOnSignal(). Because	2010-03-17 07:08:12 +00:00
Target	Add a late SSEDomainFix pass that twiddles SSE instructions to avoid domain crossings.	2010-03-25 17:25:00 +00:00
Transforms	fix PR6642, GVN forwarding from memset to load of the base of the memset.	2010-03-25 05:58:19 +00:00
VMCore	Include isFunctionLocal while calculating folding node set profile for a MDNode.	2010-03-25 06:04:47 +00:00
Makefile