Andrew Trick b5c26ef9da SCEVExpander fixes. Affects LSR and indvars. ... LSR has gradually been improved to more aggressively reuse existing code, particularly existing phi cycles. This exposed problems with the SCEVExpander's sloppy treatment of its insertion point. I applied some rigor to the insertion point problem that will hopefully avoid an endless bug cycle in this area. Changes: - Always used properlyDominates to check safe code hoisting. - The insertion point provided to SCEV is now considered a lower bound. This is usually a block terminator or the use itself. Under no cirumstance may SCEVExpander insert below this point. - LSR is reponsible for finding a "canonical" insertion point across expansion of different expressions. - Robust logic to determine whether IV increments are in "expanded" form and/or can be safely hoisted above some insertion point. Fixes PR11783: SCEVExpander assert. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148535 91177308-0d34-0410-b5e6-96231b3b80d8		2012-01-20 07:41:13 +00:00
..
ADCE.cpp	The landingpad instruction isn't dead simply because it's value isn't used.	2011-08-19 21:52:06 +00:00
BasicBlockPlacement.cpp
CMakeLists.txt	build/CMake: Finish removal of add_llvm_library_dependencies.	2011-11-29 19:25:30 +00:00
CodeGenPrepare.cpp	Propagate TargetLibraryInfo throughout ConstantFolding.cpp and	2011-12-01 03:08:23 +00:00
ConstantProp.cpp	Last bit of TargetLibraryInfo propagation. Also fixed a case for TargetData	2011-12-01 21:29:16 +00:00
CorrelatedValuePropagation.cpp
DCE.cpp	Remove unused STL header includes.	2011-04-23 19:53:52 +00:00
DeadStoreElimination.cpp	Fix infinite loop in DSE when deleting a free in a reachable loop that's also	2011-12-08 22:36:35 +00:00
EarlyCSE.cpp	Propagate TargetLibraryInfo throughout ConstantFolding.cpp and	2011-12-01 03:08:23 +00:00
GlobalMerge.cpp	Make GlobalMerge honor the preferred alignment on globals without an explicitly specified alignment.	2011-11-30 21:54:15 +00:00
GVN.cpp	Propagate TargetLibraryInfo throughout ConstantFolding.cpp and	2011-12-01 03:08:23 +00:00
IndVarSimplify.cpp	SCEVExpander fixes. Affects LSR and indvars.	2012-01-20 07:41:13 +00:00
JumpThreading.cpp	SplitBlockPredecessors uses ArrayRef instead of Data and Size.	2011-12-09 21:19:53 +00:00
LICM.cpp	Move Instruction::isSafeToSpeculativelyExecute out of VMCore and	2011-12-14 23:49:11 +00:00
LLVMBuild.txt	LLVMBuild: Remove trailing newline, which irked me.	2011-12-12 19:48:00 +00:00
LoopDeletion.cpp	Don't use PN->replaceUsesOfWith() to change a PHINode's incoming blocks,	2011-06-21 10:02:43 +00:00
LoopIdiomRecognize.cpp	Correct grammar.	2011-09-13 00:44:16 +00:00
LoopInstSimplify.cpp	Propagate TargetLibraryInfo throughout ConstantFolding.cpp and	2011-12-01 03:08:23 +00:00
LoopRotation.cpp	Make better use of the PHINode API.	2011-06-20 14:18:48 +00:00
LoopStrengthReduce.cpp	SCEVExpander fixes. Affects LSR and indvars.	2012-01-20 07:41:13 +00:00
LoopUnrollPass.cpp	Add -unroll-runtime for unrolling loops with run-time trip counts.	2011-12-09 06:19:40 +00:00
LoopUnswitch.cpp	Fixed comment in loop-unswitch.	2012-01-16 20:48:04 +00:00
LowerAtomic.cpp	Remove the old atomic instrinsics. autoupgrade functionality is included with this patch.	2011-10-06 23:20:49 +00:00
Makefile
MemCpyOptimizer.cpp	Update comment.	2011-12-05 22:53:09 +00:00
ObjCARC.cpp	Set the "tail" flag on pattern-matched objc_storeStrong calls.	2012-01-19 19:14:36 +00:00
Reassociate.cpp	Silence a bunch (but not all) "variable written but not read" warnings	2011-08-12 14:54:45 +00:00
Reg2Mem.cpp	Fix a ton of comment typos found by codespell. Patch by	2011-04-15 05:18:47 +00:00
Scalar.cpp	Add a new ObjC ARC optimization pass to eliminate unneeded	2012-01-17 20:52:24 +00:00
ScalarReplAggregates.cpp	Fix warning.	2011-12-26 23:12:42 +00:00
SCCP.cpp	Remove trailing spaces and unneeded includes.	2012-01-18 21:16:33 +00:00
SimplifyCFGPass.cpp	Convert CallInst and InvokeInst APIs to use ArrayRef.	2011-07-15 08:37:34 +00:00
SimplifyLibCalls.cpp	Turn cos(-x) into cos(x). Patch by Alexander Malyshev!	2011-12-27 18:25:50 +00:00
Sink.cpp	Move Instruction::isSafeToSpeculativelyExecute out of VMCore and	2011-12-14 23:49:11 +00:00
TailRecursionElimination.cpp	Correct over-zealous removal of hack.	2011-10-17 18:43:40 +00:00