Dan Gohman 7375fbcbf2 Fix a bug in LSR's dead-PHI cleanup. If a PHI has a def-use chain that ... leads into a cycle involving a different PHI, LSR got stuck running around that cycle looking for the original PHI. To avoid this, keep track of visited PHIs and stop searching if we see one more than once. This fixes PR2570. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53879 91177308-0d34-0410-b5e6-96231b3b80d8		2008-07-21 21:45:02 +00:00
..
ADCE	Remove the ability for ADCE to remove unreachable blocks in loop nests, because, as Eli pointed out, SimplifyCFG already does this.	2008-07-03 17:21:41 +00:00
ArgumentPromotion	Fix two more not-grep tests that were missing llvm-dis.	2008-06-09 22:36:45 +00:00
BlockPlacement	Let some more tests ignore expected output on stderr.	2008-06-10 15:04:14 +00:00
BranchFolding
CodeExtractor
CondProp
ConstantMerge
ConstProp	Fix a case where vector comparison constant folding would cause an	2008-07-10 00:29:28 +00:00
DeadArgElim	Un-XFAIL multdeadretval, since instcombine now properly handles the mess deadargelim leaves behind :-)	2008-07-16 12:56:52 +00:00
DeadStoreElimination
GCSE
GlobalDCE
GlobalOpt	Make GlobalOpt preserve address spaces when scalar replacing aggregate globals.	2008-07-17 11:59:53 +00:00
GVN	A better fix for PR2503 that doesn't pessimize GVN in the presence of unreachable blocks.	2008-07-02 17:20:16 +00:00
GVNPRE
IndVarsSimplify	Fix PR2434. When scanning for exising binary operator to reuse don't	2008-06-15 19:07:39 +00:00
Inline	Let some more tests ignore expected output on stderr.	2008-06-10 15:04:14 +00:00
InstCombine	Fix PR2553	2008-07-17 06:07:20 +00:00
Internalize	Let some more tests ignore expected output on stderr.	2008-06-10 15:04:14 +00:00
IPConstantProp	Modify some ipconstprop tests to also test with invokes.	2008-06-19 09:27:44 +00:00
JumpThreading
LCSSA
LICM
LoopDeletion
LoopIndexSplit	If loop induction variable's start value is less then its exit value then do not split the loop.	2008-07-09 00:12:01 +00:00
LoopRotate
LoopSimplify
LoopStrengthReduce	Fix a bug in LSR's dead-PHI cleanup. If a PHI has a def-use chain that	2008-07-21 21:45:02 +00:00
LoopUnroll	Revert 52645, the loop unroller changes. It caused a regression in 252.eon.	2008-06-24 20:44:42 +00:00
LoopUnswitch	Preserve dominance frontier while trivially unswitching loop.	2008-06-18 02:16:38 +00:00
LowerInvoke
LowerSetJmp
LowerSwitch
Mem2Reg
MemCpyOpt
PredicateSimplifier
PruneEH
RaiseAllocations
Reassociate	Let some more tests ignore expected output on stderr.	2008-06-10 15:04:14 +00:00
ScalarRepl	Fix PR2369 by making scalarrepl more careful about promoting	2008-06-22 17:46:21 +00:00
SCCP
SimplifyCFG	Fix mishandling of the infinite loop case when merging two blocks. This	2008-07-13 22:23:11 +00:00
SimplifyLibCalls
SRETPromotion
StripSymbols
TailCallElim
TailDup	Revert 52223.	2008-06-12 20:55:39 +00:00