Jakob Stoklund Olesen 1a988004db Use a new strategy for preventing eviction loops in RAGreedy. ... Every live range is assigned a cascade number the first time it is involved in an eviction. As the evictor, it gets a new cascade number. Every evictee is assigned the same cascade number as the evictor. Eviction is prohibited if the evictor has a lower assigned cascade number than the evictee. This means that assigned cascade numbers are monotonically increasing with every eviction, yet they are bounded by NextCascade which can only be incremented by new live ranges. Thus, infinite loops cannot happen, but eviction cascades can still be triggered by new live ranges as we want. Thanks to Andy for explaining this to me. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134303 91177308-0d34-0410-b5e6-96231b3b80d8		2011-07-02 01:37:09 +00:00
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Analysis	Teach IVUsers to stop at non-affine expressions unless they are both	2011-07-01 22:05:19 +00:00
Archive
AsmParser	Replace the existing forms of ConstantArray::get() with a single form	2011-06-22 09:24:39 +00:00
Bitcode	Replace the existing forms of ConstantArray::get() with a single form	2011-06-22 09:24:39 +00:00
CodeGen	Use a new strategy for preventing eviction loops in RAGreedy.	2011-07-02 01:37:09 +00:00
CompilerDriver
ExecutionEngine	Fix the ridiculous SubtargetFeatures API where it implicitly expects CPU name to	2011-06-30 01:53:36 +00:00
Linker
MC	Add getFeatureBits to extract feature bits for a given CPU.	2011-07-02 00:43:44 +00:00
Object	Object: Add proper error handling.	2011-06-25 17:55:23 +00:00
Support	Add initial *-*-rtems* target, from Joel Sherrill	2011-07-01 22:41:06 +00:00
Target	TargetConstant immediates won't be placed into registers so tighten	2011-07-01 23:04:38 +00:00
Transforms	Generalize @llvm.ctlz, @llvm.cttz, and @llvm.ctpop to work on vectors of integers, and fix the one optimization pass that I'm aware of that needs updating for this. At least one current target, ARM NEON, can implement these operations on vectors directly.	2011-07-01 21:52:38 +00:00
VMCore	Improve constant folding of undef for cmp and select operators.	2011-07-01 01:03:43 +00:00
CMakeLists.txt
Makefile