Andrew Trick 92e946630d Introducing a new method of tracking register pressure. We can't ... precisely track pressure on a selection DAG, but we can at least keep it balanced. This design accounts for various interesting aspects of selection DAGS: register and subregister copies, glued nodes, dead nodes, unused registers, etc. Added SUnit::NumRegDefsLeft and ScheduleDAGSDNodes::RegDefIter. Note: I disabled PrescheduleNodesWithMultipleUses when register pressure is enabled, based on no evidence other than I don't think it makes sense to have both enabled. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124853 91177308-0d34-0410-b5e6-96231b3b80d8		2011-02-04 03:18:17 +00:00
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Analysis	Improve threading of comparisons over select instructions (spotted by my	2011-02-03 09:37:39 +00:00
Archive	Archive: Fix temp path names.	2011-01-17 16:43:30 +00:00
AsmParser	Move unnamed_addr after the function arguments on Sabre's request.	2011-01-25 19:09:56 +00:00
Bitcode	FixedNumOperandTraits and VariadicOperandTraits assumed that, given a	2011-01-11 15:07:38 +00:00
CodeGen	Introducing a new method of tracking register pressure. We can't	2011-02-04 03:18:17 +00:00
CompilerDriver	Support/Path: Deprecate PathV1::exists and replace all uses with PathV2::fs::exists.	2011-01-10 02:34:23 +00:00
ExecutionEngine	Fix libffi usage when it is on a custom path.	2011-01-28 16:49:05 +00:00
Linker	Correctly merge available_externally and regular definitions when they have	2011-02-01 05:33:52 +00:00
MC	Do not sign extend floating-point values in the asm parser.	2011-02-03 23:17:47 +00:00
Object	Object: Fix type punned pointer issues by making DataRefImpl a union and using intptr_t.	2011-01-21 02:27:02 +00:00
Support	raw_fd_ostream: Add a SetUseAtomicWrites() method (uses writev).	2011-02-03 03:32:32 +00:00
Target	Fix 80-column violations and whitespace.	2011-02-03 21:46:10 +00:00
Transforms	SimplifyCFG: Also transform switches that represent a range comparison but are not sorted into sub+icmp.	2011-02-03 22:51:41 +00:00
VMCore	Make SwitchInst::removeCase() more efficient.	2011-02-01 09:22:34 +00:00
Makefile	Add LLVMObject Library.	2010-11-15 03:21:41 +00:00