llvm/test/Analysis/BasicAA, branch release_31

Duncan pointed out that if the alignment isn't explicitly specified, it defaults to the ABI alignment. Given that, make this code a bit more aggressive in such cases.

2012-02-27T23:16:46Z

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151584 91177308-0d34-0410-b5e6-96231b3b80d8

Teach BasicAA about the LLVM IR rules that allow reading past the end of an object given sufficient alignment. Fixes PR12098.

2012-02-27T20:46:07Z

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151553 91177308-0d34-0410-b5e6-96231b3b80d8

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.

2012-02-16T06:28:33Z

Patch reviewed by Daniel Dunbar. It will be followed by additional cleanup patches. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150664 91177308-0d34-0410-b5e6-96231b3b80d8

Manually upgrade the test suite to specify the flag to cttz and ctlz.

2011-12-12T11:59:10Z

I followed three heuristics for deciding whether to set 'true' or 'false': - Everything target independent got 'true' as that is the expected common output of the GCC builtins. - If the target arch only has one way of implementing this operation, set the flag in the way that exercises the most of codegen. For most architectures this is also the likely path from a GCC builtin, with 'true' being set. It will (eventually) require lowering away that difference, and then lowering to the architecture's operation. - Otherwise, set the flag differently dependending on which target operation should be tested. Let me know if anyone has any issue with this pattern or would like specific tests of another form. This should allow the x86 codegen to just iteratively improve as I teach the backend how to differentiate between the two forms, and everything else should remain exactly the same. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146370 91177308-0d34-0410-b5e6-96231b3b80d8

Upgrade syntax of tests using volatile instructions to use 'load volatile' instead of 'volatile load', which is archaic.

2011-11-27T06:54:59Z

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145171 91177308-0d34-0410-b5e6-96231b3b80d8

PR10628: Fix getModRefInfo so it queries the underlying alias() implementation correctly while checking nocapture calls.

2011-09-28T00:34:27Z

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140666 91177308-0d34-0410-b5e6-96231b3b80d8

Enhance alias analysis for atomic instructions a bit. Upgrade a couple alias-analysis tests to the new atomic instructions.

2011-09-26T20:15:28Z

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140557 91177308-0d34-0410-b5e6-96231b3b80d8

Fix the logic in BasicAliasAnalysis::aliasGEP for comparing GEP's with variable differences so that it actually does something sane. Fixes PR10881.

2011-09-08T02:23:31Z

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139276 91177308-0d34-0410-b5e6-96231b3b80d8

Teach BasicAA about the aliasing properties of memset_pattern16.

2011-09-06T23:33:25Z

Fixes PR10872 and . git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139204 91177308-0d34-0410-b5e6-96231b3b80d8

Move the loads after the calls so that the fix for

2011-07-09T23:53:58Z

PR10292 doesn't show that the loads don't alias the allocas. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134852 91177308-0d34-0410-b5e6-96231b3b80d8