llvm-6502/lib/Transforms/Scalar
Duncan Sands 69938a85bd Revert commit 158073 while waiting for a fix. The issue is that reassociate
can move instructions within the instruction list.  If the instruction just
happens to be the one the basic block iterator is pointing to, and it is
moved to a different basic block, then we get into an infinite loop due to
the iterator running off the end of the basic block (for some reason this
doesn't fire any assertions).  Original commit message:

Grab-bag of reassociate tweaks.  Unify handling of dead instructions and
instructions to reoptimize.  Exploit this to more systematically eliminate
dead instructions (this isn't very useful in practice but is convenient for
analysing some testcase I am working on).  No need for WeakVH any more: use
an AssertingVH instead.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158199 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-08 13:37:30 +00:00
..
ADCE.cpp
BasicBlockPlacement.cpp
BoundsChecking.cpp BoundsChecking: fix a bug when the handling of recursive PHIs failed and could leave dangling references in the cache 2012-06-01 17:43:31 +00:00
CMakeLists.txt hopefully fix the CMake build. sorry for breakage 2012-05-22 17:40:46 +00:00
CodeGenPrepare.cpp Switch the select to branch transformation on by default. 2012-05-06 14:25:16 +00:00
ConstantProp.cpp
CorrelatedValuePropagation.cpp llvm::SwitchInst 2012-03-11 06:09:17 +00:00
DCE.cpp
DeadStoreElimination.cpp Teach DeadStoreElimination to eliminate exit-block stores with phi addresses. 2012-05-10 18:57:38 +00:00
EarlyCSE.cpp
GlobalMerge.cpp
GVN.cpp When gvn decides to replace an instruction with another, we have to patch the 2012-06-04 22:44:21 +00:00
IndVarSimplify.cpp More IndVarSimplify cleanup. 2012-03-24 00:51:17 +00:00
JumpThreading.cpp enhance jump threading to preserve TBAA information when PRE'ing loads, 2012-03-13 18:07:41 +00:00
LICM.cpp An instruction in a loop is not guaranteed to be executed just because the loop 2012-05-01 04:03:01 +00:00
LLVMBuild.txt
LoopDeletion.cpp
LoopIdiomRecognize.cpp
LoopInstSimplify.cpp
LoopRotation.cpp
LoopStrengthReduce.cpp Fix typos found by http://github.com/lyda/misspell-check 2012-06-02 10:20:22 +00:00
LoopUnrollPass.cpp LoopUnrollPass: Use variable "Threshold" instead of "CurrentThreshold" when 2012-04-04 11:44:08 +00:00
LoopUnswitch.cpp Do not pass an invalid domtree to SimplifyInstruction from 2012-05-20 01:32:09 +00:00
LowerAtomic.cpp
Makefile
MemCpyOptimizer.cpp Move the capture analysis from MemoryDependencyAnalysis to a more general place 2012-05-14 20:35:04 +00:00
ObjCARC.cpp Fix typos found by http://github.com/lyda/misspell-check 2012-06-02 10:20:22 +00:00
Reassociate.cpp Revert commit 158073 while waiting for a fix. The issue is that reassociate 2012-06-08 13:37:30 +00:00
Reg2Mem.cpp Fix typos found by http://github.com/lyda/misspell-check 2012-06-02 10:20:22 +00:00
Scalar.cpp add a new pass to instrument loads and stores for run-time bounds checking 2012-05-22 17:19:09 +00:00
ScalarReplAggregates.cpp Do not eliminate allocas whose alignment exceeds that of the 2012-05-19 22:52:10 +00:00
SCCP.cpp Fix 80-column violation. 2012-03-28 00:35:33 +00:00
SimplifyCFGPass.cpp
SimplifyLibCalls.cpp Teach SimplifyLibCalls about stpcpy. 2012-05-15 11:46:21 +00:00
Sink.cpp Enhance the sinking code to handle diamond patterns. Patch by 2012-05-31 08:09:49 +00:00
TailRecursionElimination.cpp A pile of long over-due refactorings here. There are some very, *very* 2012-05-04 00:58:03 +00:00