Chris Lattner 2efbbb38ba Teach CodeGenPrepare to look through Bitcast instructions when attempting to ... optimize addressing modes. This allows us to optimize things like isel-sink2.ll into: movl 4(%esp), %eax cmpb $0, 4(%eax) jne LBB1_2 ## F LBB1_1: ## TB movl $4, %eax ret LBB1_2: ## F movzbl 7(%eax), %eax ret instead of: _test: movl 4(%esp), %eax cmpb $0, 4(%eax) leal 4(%eax), %eax jne LBB1_2 ## F LBB1_1: ## TB movl $4, %eax ret LBB1_2: ## F movzbl 3(%eax), %eax ret This shrinks (e.g.) 403.gcc from 1133510 to 1128345 lines of .s. Note that the 2008-10-16-SpillerBug.ll testcase is dubious at best, I doubt it is really testing what it thinks it is. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60068 91177308-0d34-0410-b5e6-96231b3b80d8		2008-11-26 00:26:16 +00:00
..
ADCE.cpp	Let instcombiner remove redundant dbg intrinsics.	2008-11-19 18:59:41 +00:00
BasicBlockPlacement.cpp
CMakeLists.txt	CMake: updated list of source files.	2008-11-05 00:11:22 +00:00
CodeGenPrepare.cpp	Teach CodeGenPrepare to look through Bitcast instructions when attempting to	2008-11-26 00:26:16 +00:00
CondPropagate.cpp
ConstantProp.cpp
DCE.cpp
DeadStoreElimination.cpp
GVN.cpp
GVNPRE.cpp
IndVarSimplify.cpp	Cast to remove warning about comparing signed and unsigned.	2008-11-18 10:57:27 +00:00
InstructionCombining.cpp	reapply Sanjiv's patch to genericize memcpy/memset/memmove to take an	2008-11-21 16:42:48 +00:00
JumpThreading.cpp
LICM.cpp	Change create*Pass factory functions to return Pass* instead of	2008-10-22 23:32:42 +00:00
LoopDeletion.cpp	Change create*Pass factory functions to return Pass* instead of	2008-10-22 23:32:42 +00:00
LoopIndexSplit.cpp	If the sign of exit condition and split condition does not match	2008-11-10 19:48:34 +00:00
LoopRotation.cpp	Change create*Pass factory functions to return Pass* instead of	2008-10-22 23:32:42 +00:00
LoopStrengthReduce.cpp	Change create*Pass factory functions to return Pass* instead of	2008-10-22 23:32:42 +00:00
LoopUnroll.cpp	Change create*Pass factory functions to return Pass* instead of	2008-10-22 23:32:42 +00:00
LoopUnswitch.cpp	Ignore conditions that are outside the loop.	2008-11-03 19:38:07 +00:00
Makefile
MemCpyOptimizer.cpp	reapply Sanjiv's patch to genericize memcpy/memset/memmove to take an	2008-11-21 16:42:48 +00:00
PredicateSimplifier.cpp	Silence unused variable warnings.	2008-11-21 20:00:59 +00:00
Reassociate.cpp	Fix build failure.	2008-11-21 21:00:20 +00:00
Reg2Mem.cpp
Scalar.cpp
ScalarReplAggregates.cpp	Allow SROA of vectors. Removing this caused a	2008-11-04 20:54:03 +00:00
SCCP.cpp	Fix unused variable warnings.	2008-11-21 01:52:59 +00:00
SimplifyCFGPass.cpp
SimplifyHalfPowrLibCalls.cpp	Add a new pass to simplify specific half_powr function calls. This is	2008-11-04 23:41:45 +00:00
SimplifyLibCalls.cpp	reapply Sanjiv's patch to genericize memcpy/memset/memmove to take an	2008-11-21 16:42:48 +00:00
TailDuplication.cpp
TailRecursionElimination.cpp