Chris Lattner faf815b938 Handle forwarding local memsets to loads. For example, we optimize this: ... short x(short *A) { memset(A, 1, sizeof(*A)*100); return A[42]; } to 'return 257' instead of doing the load. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90695 91177308-0d34-0410-b5e6-96231b3b80d8		2009-12-06 01:57:02 +00:00
..
ABCD	Revert my previous patch to ABCD and fix things the right way. There are two problems addressed	2009-11-09 00:44:44 +00:00
ADCE
ArgumentPromotion	Make opt default to not adding a target data string and update tests that depend on target data to supply it within the test	2009-11-03 15:29:06 +00:00
BlockPlacement
BranchFolding
CodeExtractor
CodeGenPrepare
ConstantMerge
ConstProp	Fix PR5551 by not ignoring the top level constantexpr when	2009-12-04 06:29:29 +00:00
DeadArgElim
DeadStoreElimination	Cleanup/remove some parts of the lifetime region handling code in memdep and GVN,	2009-12-02 07:35:19 +00:00
FunctionAttrs
GlobalDCE
GlobalOpt	Make ConstantFoldConstantExpression recursively visit the entire	2009-11-23 16:22:21 +00:00
GVN	Handle forwarding local memsets to loads. For example, we optimize this:	2009-12-06 01:57:02 +00:00
IndVarSimplify	Make opt default to not adding a target data string and update tests that depend on target data to supply it within the test	2009-11-03 15:29:06 +00:00
Inline	implement a nice little efficiency hack in the inliner. Since we're now	2009-11-12 07:56:08 +00:00
InstCombine	Generalize this optimization to work on equality comparisons between any two	2009-12-05 05:00:00 +00:00
Internalize
IPConstantProp	Fix a use of an invalidated iterator in the case where there are multiple	2009-11-23 16:13:39 +00:00
JumpThreading	fix PR5640 by tracking whether a block is the header of a loop more	2009-12-01 06:04:43 +00:00
LCSSA	Trim a bunch of unneeded code from this testcase.	2009-11-10 01:33:08 +00:00
LICM	Enable hoisting of loads from constant memory by default. In cases where	2009-11-19 19:00:10 +00:00
LoopDeletion	Make LoopDeletion check the maximum backedge taken count, rather than the	2009-10-23 17:10:01 +00:00
LoopIndexSplit
LoopRotate	Make Loop::getLoopLatch() work on loops which don't have preheaders, as	2009-11-20 20:51:18 +00:00
LoopSimplify	Make Loop::getLoopLatch() work on loops which don't have preheaders, as	2009-11-20 20:51:18 +00:00
LoopStrengthReduce	Generalize OptimizeLoopTermCond to optimize more loop terminating icmp to use postinc iv.	2009-11-17 18:10:11 +00:00
LoopUnroll	Teach getSmallConstantTripMultiple about Shl operators.	2009-11-20 01:09:34 +00:00
LoopUnswitch	Reverting patch in revision 89758, initial attempt at fixing PR5373 has proven to be bogus.	2009-11-25 05:38:41 +00:00
LowerInvoke
LowerSetJmp
LowerSwitch
Mem2Reg	fix a bug exposed by moving SRoA earlier which caused a crash building kc++	2009-11-02 04:37:17 +00:00
MemCpyOpt	Make opt default to not adding a target data string and update tests that depend on target data to supply it within the test	2009-11-03 15:29:06 +00:00
MergeFunc
PruneEH
Reassociate
ScalarRepl	fix PR5436 by making the 'simple' case of SRoA not promote out of range	2009-11-27 16:37:41 +00:00
SCCP	fix a crash in SCCP handling extractvalue of an array, pointed out and	2009-11-10 22:02:09 +00:00
SimplifyCFG	Optimize test more.	2009-11-10 21:02:18 +00:00
SimplifyLibCalls	Teach SimplifyLibCalls to fold memcmp calls with constant arguments.	2009-11-05 17:44:22 +00:00
SRETPromotion
SSI
StripSymbols
TailCallElim	Improve tail call elimination to handle the switch statement.	2009-11-07 21:10:15 +00:00
TailDup