llvm-6502/test/Analysis
Hal Finkel a0715579f0 [BasicAA] Make better use of zext and sign information
Two related things:

 1. Fixes a bug when calculating the offset in GetLinearExpression. The code
    previously used zext to extend the offset, so negative offsets were converted
    to large positive ones.

 2. Enhance aliasGEP to deduce that, if the difference between two GEP
    allocations is positive and all the variables that govern the offset are also
    positive (i.e. the offset is strictly after the higher base pointer), then
    locations that fit in the gap between the two base pointers are NoAlias.

Patch by Nick White!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218714 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-30 22:43:40 +00:00
..
BasicAA [BasicAA] Make better use of zext and sign information 2014-09-30 22:43:40 +00:00
BlockFrequencyInfo Fix typos 2014-05-15 01:52:21 +00:00
BranchProbabilityInfo Fix a bug in which BranchProbabilityInfo wasn't setting branch weights of basic blocks inside loops correctly. 2014-04-14 16:56:19 +00:00
CallGraph [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
CFLAliasAnalysis Add a CFL Alias Analysis implementation 2014-09-02 21:43:13 +00:00
CostModel AVX-512: added cost for some AVX-512 instructions 2014-09-16 07:57:37 +00:00
Delinearization ScalarEvolution: Derive element size from the type of the loaded element 2014-06-08 19:21:20 +00:00
DependenceAnalysis remove constant terms 2014-05-27 22:41:45 +00:00
Dominators [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
GlobalsModRef BasicAA: Use reachabilty instead of dominance for checking value equality in phi 2014-01-03 05:47:03 +00:00
LazyCallGraph [LCG] Add support for building persistent and connected SCCs to the 2014-04-18 10:50:32 +00:00
Lint Teach lint about address spaces 2014-03-06 17:33:55 +00:00
LoopInfo FileCheck-ize tests. 2013-08-22 00:51:19 +00:00
MemoryDependenceAnalysis [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
PostDominators FileCheck-ize tests. 2013-08-22 00:51:19 +00:00
RegionInfo [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
ScalarEvolution Make use @llvm.assume for loop guards in ScalarEvolution 2014-09-07 21:37:59 +00:00
ScopedNoAliasAA Convert noalias parameter attributes into noalias metadata during inlining 2014-07-25 15:50:08 +00:00
TypeBasedAliasAnalysis AA metadata refactoring (introduce AAMDNodes) 2014-07-24 12:16:19 +00:00