Chris Lattner c1526a9da1 Fix a major pessimization in the instcombiner. If an allocation instruction ... is only used by a cast, and the casted type is the same size as the original allocation, it would eliminate the cast by folding it into the allocation. Unfortunately, it was placing the new allocation instruction right before the cast, which could pull (for example) alloca instructions into the body of a function. This turns statically allocatable allocas into expensive dynamically allocated allocas, which is bad bad bad. This fixes the problem by placing the new allocation instruction at the same place the old one was, duh. :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13289 91177308-0d34-0410-b5e6-96231b3b80d8		2004-04-30 04:37:52 +00:00
..
ADCE.cpp	Simplify code a bit, and fix a bug that was breaking perlbmk	2004-04-10 18:06:21 +00:00
BasicBlockPlacement.cpp	Remove obsolete comment. Unreachable blocks will automatically be left at the	2004-02-11 05:20:50 +00:00
ConstantProp.cpp	Changes to fix up the inst_iterator to pass to boost iterator checks. This	2004-04-27 15:13:33 +00:00
CorrelatedExprs.cpp	Remove use of the ConstantHandling interfaces	2004-01-12 19:12:50 +00:00
DCE.cpp	Changes to fix up the inst_iterator to pass to boost iterator checks. This	2004-04-27 15:13:33 +00:00
DecomposeMultiDimRefs.cpp	Finegrainify namespacification	2004-01-09 06:02:20 +00:00
GCSE.cpp	Add support for removing invoke instructions	2004-04-12 05:15:13 +00:00
IndVarSimplify.cpp	Move the scev expansion code into this pass, where it belongs. There is	2004-04-23 21:29:48 +00:00
InstructionCombining.cpp	Fix a major pessimization in the instcombiner. If an allocation instruction	2004-04-30 04:37:52 +00:00
LICM.cpp	Move isLoopInvariant to the Loop class	2004-04-18 22:46:08 +00:00
LoopUnroll.cpp	Fix PR325	2004-04-20 20:26:03 +00:00
LoopUnswitch.cpp	Initial checkin of a simple loop unswitching pass. It still needs work,	2004-04-19 18:07:02 +00:00
Makefile	Added LLVM copyright notice to Makefiles.	2003-10-20 22:26:57 +00:00
PiNodeInsertion.cpp	Finegrainify namespacification	2004-01-09 06:02:20 +00:00
PRE.cpp	Finegrainify namespacification	2004-01-09 06:02:20 +00:00
Reassociate.cpp	Finegrainify namespacification	2004-01-09 06:02:20 +00:00
ScalarReplAggregates.cpp	Support getelementptr instructions which use uint's to index into structure	2004-04-05 01:30:19 +00:00
SCCP.cpp	Add SCCP support for constant folding calls, implementing:	2004-04-13 19:43:54 +00:00
SimplifyCFG.cpp	Finegrainify namespacification	2004-01-09 06:02:20 +00:00
SymbolStripping.cpp	Update obsolete comments	2004-01-10 21:36:49 +00:00
TailDuplication.cpp	Make the tail duplication threshold accessible from the command line instead of hardcoded	2004-04-18 00:52:43 +00:00
TailRecursionElimination.cpp	Adjust to the new BasicBlock ctor, which requires a function parameter	2004-02-04 03:58:28 +00:00