llvm-project/llvm/test/Transforms/GVN
Duncan Sands 4df5e96d3a Fix PR12858, a crash due to GVN's PRE not fully removing an instruction from the
leader table.  That's because it wasn't expecting instructions to turn up as
leader for a value number that is not its own, but equality propagation could
create this situation.  One solution is to have the leader table use a WeakVH
but this slows down GVN by about 5%.  Instead just have equality propagation not
add instructions to the leader table, only constants and arguments.  In theory
this might cause GVN to run more (each time it changes something it runs again)
but it doesn't seem to occur enough to cause a slow down.

llvm-svn: 157251
2012-05-22 14:17:53 +00:00
..
2007-07-25-DominatedLoop.ll
2007-07-25-InfiniteLoop.ll
2007-07-25-Loop.ll
2007-07-25-NestedLoop.ll
2007-07-25-SinglePredecessor.ll
2007-07-26-InterlockingLoops.ll remove a trivial test, make some other tests less trivial. 2011-05-22 07:02:43 +00:00
2007-07-26-NonRedundant.ll
2007-07-26-PhiErasure.ll
2007-07-30-PredIDom.ll
2007-07-31-NoDomInherit.ll
2007-07-31-RedundantPhi.ll
2008-02-12-UndefLoad.ll
2008-02-13-NewPHI.ll
2008-07-02-Unreachable.ll remove a trivial test, make some other tests less trivial. 2011-05-22 07:02:43 +00:00
2008-12-09-SelfRemove.ll
2008-12-12-RLE-Crash.ll
2008-12-14-rle-reanalyze.ll
2008-12-15-CacheVisited.ll
2009-01-21-SortInvalidation.ll
2009-01-22-SortInvalidation.ll
2009-02-17-LoadPRECrash.ll
2009-03-10-PREOnVoid.ll
2009-06-17-InvalidPRE.ll
2009-07-13-MemDepSortFail.ll
2009-11-12-MemDepMallocBitCast.ll
2010-03-31-RedundantPHIs.ll
2010-05-08-OneBit.ll Update some tests to the new EH scheme. 2011-09-01 00:58:03 +00:00
2010-11-13-Simplify.ll
2011-04-27-phioperands.ll This is an automatically reduced test case that crashed in GVN, at some 2011-06-20 14:46:47 +00:00
2011-06-01-NonLocalMemdepMiscompile.ll When marking a block as being unanalyzable, use "Clobber" on the terminator instead of the first instruction in the block. This is a bit of a hack; "Clobber" isn't really the right marking in the first place. memdep doesn't really have any way of properly expressing "unanalyzable" at the moment. Using it on the terminator is much less ambiguous than using it on an arbitrary instruction, though. 2011-06-02 00:08:52 +00:00
2011-07-07-MatchIntrinsicExtract.ll Added test cases for GVN signed intrinsics recognition, r134777. 2011-07-09 00:36:54 +00:00
2011-09-07-TypeIdFor.ll Mark the eh.typeid.for intrinsic as being 'const', which it is inside 2011-09-09 07:50:37 +00:00
2012-05-22-PreCrash.ll Fix PR12858, a crash due to GVN's PRE not fully removing an instruction from the 2012-05-22 14:17:53 +00:00
atomic.ll Atomic load/store handling for the passes using memdep (GVN, DSE, memcpyopt). 2011-08-17 22:22:24 +00:00
basic.ll
bitcast-of-call.ll
calls-nonlocal.ll
calls-readonly.ll
commute.ll Teach GVN that x+y is the same as y+x and that x<y is the same as y>x. 2012-02-24 15:16:31 +00:00
condprop.ll Nick pointed out on IRC that GVN's propagateEquality wasn't propagating 2012-03-04 13:25:19 +00:00
crash-no-aa.ll
crash.ll fix PR9841 by having GVN not process dead loads. This was 2011-05-22 07:03:34 +00:00
lifetime-simple.ll
lit.local.cfg Replace all instances of dg.exp file with lit.local.cfg, since all tests are run with LIT now and now Dejagnu. dg.exp is no longer needed. 2012-02-16 06:28:33 +00:00
load-constant-mem.ll
load-pre-align.ll
load-pre-licm.ll
local-pre.ll
lpre-call-wrap-2.ll
lpre-call-wrap.ll
non-local-offset.ll
nonescaping-malloc.ll rip out a ton of intrinsic modernization logic from AutoUpgrade.cpp, which is 2011-06-18 06:05:24 +00:00
null-aliases-nothing.ll
phi-translate-partial-alias.ll Add a testcase to demonstrate the problem where phi translation is 2011-06-04 07:05:05 +00:00
phi-translate.ll GVN does simple propagation of conditions: when it sees a conditional 2011-10-05 14:28:49 +00:00
pr10820.ll Extra CHECK-NOT to make sure that GVN transform works properly. 2011-09-02 17:40:39 +00:00
pre-basic-add.ll
pre-compare.ll Don't PRE compares. 2012-03-29 17:22:39 +00:00
pre-load.ll
pre-single-pred.ll
preserve-tbaa.ll make this test less trivial. 2011-05-22 06:59:33 +00:00
rle-must-alias.ll
rle-no-phi-translate.ll
rle-nonlocal.ll
rle-phi-translate.ll
rle-semidominated.ll
rle.ll Fix crasher in GVN due to my recent capture tracking changes. 2011-11-21 19:42:56 +00:00