Quentin Colombet 30c0f72237 [CodeGenPrepare] Move away sign extensions that get in the way of addressing ... mode. Basically the idea is to transform code like this: %idx = add nsw i32 %a, 1 %sextidx = sext i32 %idx to i64 %gep = gep i8* %myArray, i64 %sextidx load i8* %gep Into: %sexta = sext i32 %a to i64 %idx = add nsw i64 %sexta, 1 %gep = gep i8* %myArray, i64 %idx load i8* %gep That way the computation can be folded into the addressing mode. This transformation is done as part of the addressing mode matcher. If the matching fails (not profitable, addressing mode not legal, etc.), the matcher will revert the related promotions. <rdar://problem/15519855> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200947 91177308-0d34-0410-b5e6-96231b3b80d8		2014-02-06 21:44:56 +00:00
..
ADCE.cpp	Disable most IR-level transform passes on functions marked 'optnone'.	2014-02-06 00:07:05 +00:00
CMakeLists.txt	Revert "Revert "Add Constant Hoisting Pass" (r200034)"	2014-01-25 02:02:55 +00:00
CodeGenPrepare.cpp	[CodeGenPrepare] Move away sign extensions that get in the way of addressing	2014-02-06 21:44:56 +00:00
ConstantHoisting.cpp	ConstantHoisting: We can't insert instructions directly in front of a PHI node.	2014-01-27 13:11:43 +00:00
ConstantProp.cpp
CorrelatedValuePropagation.cpp	Disable most IR-level transform passes on functions marked 'optnone'.	2014-02-06 00:07:05 +00:00
DCE.cpp	Disable most IR-level transform passes on functions marked 'optnone'.	2014-02-06 00:07:05 +00:00
DeadStoreElimination.cpp	Disable most IR-level transform passes on functions marked 'optnone'.	2014-02-06 00:07:05 +00:00
EarlyCSE.cpp	Disable most IR-level transform passes on functions marked 'optnone'.	2014-02-06 00:07:05 +00:00
FlattenCFGPass.cpp	Factor FlattenCFG out from SimplifyCFG	2013-08-06 02:43:45 +00:00
GlobalMerge.cpp	Change tabs to spaces.	2013-07-22 21:11:30 +00:00
GVN.cpp	Disable most IR-level transform passes on functions marked 'optnone'.	2014-02-06 00:07:05 +00:00
IndVarSimplify.cpp	Disable most IR-level transform passes on functions marked 'optnone'.	2014-02-06 00:07:05 +00:00
JumpThreading.cpp	Disable most IR-level transform passes on functions marked 'optnone'.	2014-02-06 00:07:05 +00:00
LICM.cpp	Disable most IR-level transform passes on functions marked 'optnone'.	2014-02-06 00:07:05 +00:00
LLVMBuild.txt	Add proper dependencies to LLVMBuild.txt in llvm/lib.	2013-12-10 05:39:34 +00:00
LoopDeletion.cpp	Disable most IR-level transform passes on functions marked 'optnone'.	2014-02-06 00:07:05 +00:00
LoopIdiomRecognize.cpp	Disable most IR-level transform passes on functions marked 'optnone'.	2014-02-06 00:07:05 +00:00
LoopInstSimplify.cpp	Disable most IR-level transform passes on functions marked 'optnone'.	2014-02-06 00:07:05 +00:00
LoopRerollPass.cpp	Disable most IR-level transform passes on functions marked 'optnone'.	2014-02-06 00:07:05 +00:00
LoopRotation.cpp	Disable most IR-level transform passes on functions marked 'optnone'.	2014-02-06 00:07:05 +00:00
LoopStrengthReduce.cpp	Disable most IR-level transform passes on functions marked 'optnone'.	2014-02-06 00:07:05 +00:00
LoopUnrollPass.cpp	Disable most IR-level transform passes on functions marked 'optnone'.	2014-02-06 00:07:05 +00:00
LoopUnswitch.cpp	Disable most IR-level transform passes on functions marked 'optnone'.	2014-02-06 00:07:05 +00:00
LowerAtomic.cpp	Disable most IR-level transform passes on functions marked 'optnone'.	2014-02-06 00:07:05 +00:00
Makefile
MemCpyOptimizer.cpp	A memcpy out of an fresh alloca is a no-op, delete it. Patch by Patrick Walton!	2014-02-06 06:29:19 +00:00
PartiallyInlineLibCalls.cpp	Turn MipsOptimizeMathLibCalls into a target-independent scalar transform	2013-08-23 10:27:02 +00:00
Reassociate.cpp	Disable most IR-level transform passes on functions marked 'optnone'.	2014-02-06 00:07:05 +00:00
Reg2Mem.cpp
SampleProfile.cpp	[PM] Split DominatorTree into a concrete analysis result object which	2014-01-13 13:07:17 +00:00
Scalar.cpp	Revert "Revert "Add Constant Hoisting Pass" (r200034)"	2014-01-25 02:02:55 +00:00
Scalarizer.cpp	Fix Scalarizer insertion point when replacing PHIs with insertelements	2013-12-23 14:51:56 +00:00
ScalarReplAggregates.cpp	Disable most IR-level transform passes on functions marked 'optnone'.	2014-02-06 00:07:05 +00:00
SCCP.cpp	Disable most IR-level transform passes on functions marked 'optnone'.	2014-02-06 00:07:05 +00:00
SimplifyCFGPass.cpp	Disable most IR-level transform passes on functions marked 'optnone'.	2014-02-06 00:07:05 +00:00
Sink.cpp	[PM] Split DominatorTree into a concrete analysis result object which	2014-01-13 13:07:17 +00:00
SROA.cpp	Disable most IR-level transform passes on functions marked 'optnone'.	2014-02-06 00:07:05 +00:00
StructurizeCFG.cpp	cleanup: scc_iterator consumers should use isAtEnd	2014-02-04 19:19:07 +00:00
TailRecursionElimination.cpp	Disable most IR-level transform passes on functions marked 'optnone'.	2014-02-06 00:07:05 +00:00