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llvm/test/Analysis
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Benjamin Kramer c1c74fb2b4 ScalarEvolution: Compute exit counts for loops with a power-of-2 step. 
If we have a loop of the form
for (unsigned n = 0; n != (k & -32); n += 32) {}
then we know that n is always divisible by 32 and the loop must
terminate. Even if we have a condition where the loop counter will
overflow it'll always hold this invariant.

PR19183. Our loop vectorizer creates this pattern and it's also
occasionally formed by loop counters derived from pointers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204728 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-25 16:25:12 +00:00
..
BasicAA Reject alias to undefined symbols in the verifier. 2014-03-12 20:15:49 +00:00
BlockFrequencyInfo [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
BranchProbabilityInfo Consider (x == -1) unlikely in BranchProbabilityInfo 2013-11-01 10:58:22 +00:00
CallGraph [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
CostModel When analyzing vectors of element type that require legalization, 2014-03-10 22:59:13 +00:00
Delinearization delinearization of arrays 2013-11-12 22:47:20 +00:00
DependenceAnalysis add -da-delinearize runs and checks to MIV testcases 2014-02-21 18:15:18 +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 [PM] Add a new "lazy" call graph analysis pass for the new pass manager. 2014-02-06 04:37:03 +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 ScalarEvolution: Compute exit counts for loops with a power-of-2 step. 2014-03-25 16:25:12 +00:00
TypeBasedAliasAnalysis Fix known typos 2014-01-24 17:20:08 +00:00