Gerolf Hoflehner e513820659 [BasicAA] Fix - missed alias in GEP expressions ...

In BasicAA GEP operand values get adjusted ("wrap-around") based on the
pointersize. Otherwise, in non-64b modes, AA could report false negatives.
However, a wrap-around is valid only for a fully evaluated expression.
It had been introduced to fix an alias problem in
http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20160118/326163.html.
This commit restricts the wrap-around to constant gep operands only where the
value is known at compile-time.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@284908 91177308-0d34-0410-b5e6-96231b3b80d8

2016-10-22 02:41:39 +00:00

..

2003-02-26-AccessSizeTest.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

2003-03-04-GEPCrash.ll

[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction

2015-02-27 19:29:02 +00:00

2003-04-22-GEPProblem.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

2003-04-25-GEPCrash.ll

[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction

2015-02-27 19:29:02 +00:00

2003-05-21-GEP-Problem.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

2003-06-01-AliasCrash.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

2003-07-03-BasicAACrash.ll

[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction

2015-02-27 19:29:02 +00:00

2003-09-19-LocalArgument.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

2003-11-04-SimpleCases.ll

[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction

2015-02-27 19:29:02 +00:00

2003-12-11-ConstExprGEP.ll

[opaque pointer type] Add textual IR support for explicit type parameter to gep operator

2015-03-13 18:20:45 +00:00

2004-07-28-MustAliasbug.ll

[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction

2015-02-27 19:29:02 +00:00

2006-03-03-BadArraySubscript.ll

[opaque pointer type] Add textual IR support for explicit type parameter to the call instruction

2015-04-16 23:24:18 +00:00

2006-11-03-BasicAAVectorCrash.ll

[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction

2015-02-27 19:29:02 +00:00

2007-01-13-BasePointerBadNoAlias.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

2007-08-01-NoAliasAndCalls.ll

Convert the uses of '|&' to use '2>&1 |' instead, which works on old

2012-07-02 18:37:59 +00:00

2007-08-01-NoAliasAndGEP.ll

[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction

2015-02-27 19:29:02 +00:00

2007-08-05-GetOverloadedModRef.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

2007-10-24-ArgumentsGlobals.ll

[opaque pointer type] Add textual IR support for explicit type parameter to gep operator

2015-03-13 18:20:45 +00:00

2007-11-05-SizeCrash.ll

[opaque pointer type] Add textual IR support for explicit type parameter for global aliases

2015-09-11 03:22:04 +00:00

2007-12-08-OutOfBoundsCrash.ll

[opaque pointer type] Add textual IR support for explicit type parameter for global aliases

2015-09-11 03:22:04 +00:00

2008-04-15-Byval.ll

[opaque pointer type] Add textual IR support for explicit type parameter to the call instruction

2015-04-16 23:24:18 +00:00

2008-06-02-GEPTailCrash.ll

[opaque pointer type] Add textual IR support for explicit type parameter to gep operator

2015-03-13 18:20:45 +00:00

2008-11-23-NoaliasRet.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

2009-03-04-GEPNoalias.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

2009-10-13-AtomicModRef.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

2009-10-13-GEP-BaseNoAlias.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

2010-09-15-GEP-SignedArithmetic.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

2014-03-18-Maxlookup-reached.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

aligned-overread.ll

[opaque pointer type] Add textual IR support for explicit type parameter to gep operator

2015-03-13 18:20:45 +00:00

args-rets-allocas-loads.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

assume.ll

Revert "Change memcpy/memset/memmove to have dest and source alignments."

2015-11-19 05:56:52 +00:00

bug.23540.ll

[BasicAA] Fix the handling of sext and zext in the analysis of GEPs.

2015-08-31 22:32:47 +00:00

bug.23626.ll

[BasicAA] Fix the handling of sext and zext in the analysis of GEPs.

2015-08-31 22:32:47 +00:00

byval.ll

[opaque pointer type] Add textual IR support for explicit type parameter to the call instruction

2015-04-16 23:24:18 +00:00

cas.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

constant-over-index.ll

[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction

2015-02-27 19:29:02 +00:00

cs-cs.ll

Add writeonly IR attribute

2016-07-04 08:01:29 +00:00

dag.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

empty.ll

Convert the uses of '|&' to use '2>&1 |' instead, which works on old

2012-07-02 18:37:59 +00:00

featuretest.ll

[opaque pointer type] Add textual IR support for explicit type parameter to gep operator

2015-03-13 18:20:45 +00:00

full-store-partial-alias.ll

[PM/AA] Rebuild LLVM's alias analysis infrastructure in a way compatible

2015-09-09 17:55:00 +00:00

gcsetest.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

gep-alias.ll

[BasicAA] Add a test for PR24468 to be sure we won't regress

2015-08-19 00:08:26 +00:00

gep-and-alias.ll

[BasicAA] Fix - missed alias in GEP expressions

2016-10-22 02:41:39 +00:00

getmodrefinfo-cs-cs.ll

Revert "Change memcpy/memset/memmove to have dest and source alignments."

2015-11-19 05:56:52 +00:00

global-size.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

guards.ll

[BasicAA] Guard intrinsics don't write to memory

2016-05-10 02:35:41 +00:00

intrinsics.ll

Sort the enums in Attributes.h in case insensitive alphabetical order.

2015-11-11 02:11:46 +00:00

invariant_load.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

memset_pattern.ll

[BasicAA] Remove special casing of memset_pattern16 in favor of generic attribute inference

2016-01-06 04:53:16 +00:00

modref.ll

Revert "Change memcpy/memset/memmove to have dest and source alignments."

2015-11-19 05:56:52 +00:00

must-and-partial.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

negoffset.ll

[BasicAA] Extend inbound GEP negative offset logic to GlobalVariables

2016-05-26 19:30:49 +00:00

no-escape-call.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

noalias-bugs.ll

Fix a bunch of trivial cases of 'CHECK[^:]*$' in the tests. NFCI

2015-08-10 19:01:27 +00:00

noalias-geps.ll

[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction

2015-02-27 19:29:02 +00:00

noalias-param.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

noalias-wraparound-bug.ll

[BasicAA] Fix for missing must alias (D16343)

2016-01-30 05:52:53 +00:00

nocapture.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

phi-aa.ll

[PM/AA] Port alias analysis evaluator to the new pass manager, and use

2016-02-20 03:46:03 +00:00

phi-and-select.ll

Convert the uses of '|&' to use '2>&1 |' instead, which works on old

2012-07-02 18:37:59 +00:00

phi-loop.ll

Analyze recursive PHI nodes in BasicAA

2015-07-15 19:32:22 +00:00

phi-spec-order.ll

[opaque pointer type] Add textual IR support for explicit type parameter to gep operator

2015-03-13 18:20:45 +00:00

phi-speculation.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

pr18573.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

pure-const-dce.ll

Use references to attribute groups on the call/invoke instructions.

2013-02-22 09:09:42 +00:00

q.bad.ll

[BasicAA] Fix the handling of sext and zext in the analysis of GEPs.

2015-08-31 22:32:47 +00:00

returned.ll

BasicAA should look through functions with returned arguments

2016-07-11 01:32:20 +00:00

sequential-gep.ll

[BasicAA] Bugfix for r251016

2015-10-23 14:17:03 +00:00

store-promote.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

struct-geps.ll

[BasicAA] Compare GEP indices based on value (Fix PR27418)

2016-05-11 15:45:43 +00:00

tailcall-modref.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

underlying-value.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

unreachable-block.ll

[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction

2015-02-27 19:29:02 +00:00

zext.ll

[BasicAA] Fix the handling of sext and zext in the analysis of GEPs.

2015-08-31 22:32:47 +00:00