Jakob Stoklund Olesen 9571cb56c5 Don't PRE compares. ...

CodeGenPrepare sinks compare instructions down to their uses to prevent
live flags and predicate registers across basic blocks.

PRE of a compare instruction prevents that, forcing the i1 compare
result into a general purpose register.  That is usually more expensive
than the redundant compare PRE was trying to eliminate in the first
place.

llvm-svn: 153657

2012-03-29 17:22:39 +00:00

..

2007-07-25-DominatedLoop.ll

Change tests from "opt %s" to "opt < %s" so that opt doesn't see the

2009-09-11 18:01:28 +00:00

2007-07-25-InfiniteLoop.ll

Make BasicAliasAnalysis a normal AliasAnalysis implementation which

2010-10-18 18:04:47 +00:00

2007-07-25-Loop.ll

Change tests from "opt %s" to "opt < %s" so that opt doesn't see the

2009-09-11 18:01:28 +00:00

2007-07-25-NestedLoop.ll

Change tests from "opt %s" to "opt < %s" so that opt doesn't see the

2009-09-11 18:01:28 +00:00

2007-07-25-SinglePredecessor.ll

Change tests from "opt %s" to "opt < %s" so that opt doesn't see the

2009-09-11 18:01:28 +00:00

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

Change tests from "opt %s" to "opt < %s" so that opt doesn't see the

2009-09-11 18:01:28 +00:00

2007-07-26-PhiErasure.ll

switch GVN to use SSAUpdater. Besides removing a lot of complexity

2009-10-10 23:50:30 +00:00

2007-07-30-PredIDom.ll

Change tests from "opt %s" to "opt < %s" so that opt doesn't see the

2009-09-11 18:01:28 +00:00

2007-07-31-NoDomInherit.ll

Make BasicAliasAnalysis a normal AliasAnalysis implementation which

2010-10-18 18:04:47 +00:00

2007-07-31-RedundantPhi.ll

Make BasicAliasAnalysis a normal AliasAnalysis implementation which

2010-10-18 18:04:47 +00:00

2008-02-12-UndefLoad.ll

Change tests from "opt %s" to "opt < %s" so that opt doesn't see the

2009-09-11 18:01:28 +00:00

2008-02-13-NewPHI.ll

stop using anders-aa

2010-03-01 20:24:50 +00:00

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

Change tests from "opt %s" to "opt < %s" so that opt doesn't see the

2009-09-11 18:01:28 +00:00

2008-12-12-RLE-Crash.ll

Change tests from "opt %s" to "opt < %s" so that opt doesn't see the

2009-09-11 18:01:28 +00:00

2008-12-14-rle-reanalyze.ll

Change tests from "opt %s" to "opt < %s" so that opt doesn't see the

2009-09-11 18:01:28 +00:00

2008-12-15-CacheVisited.ll

Change tests from "opt %s" to "opt < %s" so that opt doesn't see the

2009-09-11 18:01:28 +00:00

2009-01-21-SortInvalidation.ll

Change tests from "opt %s" to "opt < %s" so that opt doesn't see the

2009-09-11 18:01:28 +00:00

2009-01-22-SortInvalidation.ll

Change tests from "opt %s" to "opt < %s" so that opt doesn't see the

2009-09-11 18:01:28 +00:00

2009-02-17-LoadPRECrash.ll

Change tests from "opt %s" to "opt < %s" so that opt doesn't see the

2009-09-11 18:01:28 +00:00

2009-03-10-PREOnVoid.ll

Change tests from "opt %s" to "opt < %s" so that opt doesn't see the

2009-09-11 18:01:28 +00:00

2009-06-17-InvalidPRE.ll

Change tests from "opt %s" to "opt < %s" so that opt doesn't see the

2009-09-11 18:01:28 +00:00

2009-07-13-MemDepSortFail.ll

Correct bogus module triple specifications.

2010-08-30 10:48:29 +00:00

2009-11-12-MemDepMallocBitCast.ll

Memory dependence analysis was incorrectly stopping to scan for stores to a pointer at bitcast uses of a malloc call.

2009-10-13 01:42:53 +00:00

2010-03-31-RedundantPHIs.ll

Teach InstructionSimplify about phi nodes. I chose to have it simply

2010-11-14 13:30:18 +00:00

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

Testcase to go along with commit 118923 ("Have GVN simplify instructions

2010-11-13 21:33:19 +00:00

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

atomic.ll

Atomic load/store handling for the passes using memdep (GVN, DSE, memcpyopt).

2011-08-17 22:22:24 +00:00

basic.ll

Change tests from "opt %s" to "opt < %s" so that opt doesn't see the

2009-09-11 18:01:28 +00:00

bitcast-of-call.ll

Change tests from "opt %s" to "opt < %s" so that opt doesn't see the

2009-09-11 18:01:28 +00:00

calls-nonlocal.ll

Make BasicAliasAnalysis a normal AliasAnalysis implementation which

2010-10-18 18:04:47 +00:00

calls-readonly.ll

Check that GVN performs this transform even if the calls

2009-10-16 12:18:23 +00:00

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

Fix PR5744, a case where we were getting the pointer size instead of the

2009-12-10 00:11:45 +00:00

crash.ll

fix PR9841 by having GVN not process dead loads. This was

2011-05-22 07:03:34 +00:00

lifetime-simple.ll

Make BasicAliasAnalysis a normal AliasAnalysis implementation which

2010-10-18 18:04:47 +00:00

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

Make BasicAliasAnalysis a normal AliasAnalysis implementation which

2010-10-18 18:04:47 +00:00

load-pre-align.ll

Remove arm_apcscc from the test files. It is the default and doing this

2010-06-17 15:18:27 +00:00

load-pre-licm.ll

Make BasicAliasAnalysis a normal AliasAnalysis implementation which

2010-10-18 18:04:47 +00:00

local-pre.ll

Change tests from "opt %s" to "opt < %s" so that opt doesn't see the

2009-09-11 18:01:28 +00:00

lpre-call-wrap-2.ll

Make BasicAliasAnalysis a normal AliasAnalysis implementation which

2010-10-18 18:04:47 +00:00

lpre-call-wrap.ll

Eliminate uses of %prcontext.

2009-09-05 11:35:16 +00:00

non-local-offset.ll

Enhance GVN to do more precise alias queries for non-local memory

2010-11-10 20:37:15 +00:00

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

Make BasicAliasAnalysis a normal AliasAnalysis implementation which

2010-10-18 18:04:47 +00:00

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

Change tests from "opt %s" to "opt < %s" so that opt doesn't see the

2009-09-11 18:01:28 +00:00

pre-compare.ll

Don't PRE compares.

2012-03-29 17:22:39 +00:00

pre-load.ll

Make BasicAliasAnalysis a normal AliasAnalysis implementation which

2010-10-18 18:04:47 +00:00

pre-single-pred.ll

LoadPRE was not properly checking that the load it was PRE'ing post-dominated the block it was being hoisted to.

2010-09-25 05:26:18 +00:00

preserve-tbaa.ll

make this test less trivial.

2011-05-22 06:59:33 +00:00

rle-must-alias.ll

Make BasicAliasAnalysis a normal AliasAnalysis implementation which

2010-10-18 18:04:47 +00:00

rle-no-phi-translate.ll

this test is failing, and is expected to.

2009-11-27 06:36:28 +00:00

rle-nonlocal.ll

Make BasicAliasAnalysis a normal AliasAnalysis implementation which

2010-10-18 18:04:47 +00:00

rle-phi-translate.ll

fix an overly conservative caching issue that caused memdep to

2009-12-19 21:29:22 +00:00

rle-semidominated.ll

Make BasicAliasAnalysis a normal AliasAnalysis implementation which

2010-10-18 18:04:47 +00:00

rle.ll

Fix crasher in GVN due to my recent capture tracking changes.

2011-11-21 19:42:56 +00:00