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5 Commits

Author SHA1 Message Date
Wojciech Matyjewicz
de0f2382e4 Fix PR2088. Use modulo linear equation solver to compute loop iteration 
count.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53810 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-20 15:55:14 +00:00
Nick Lewycky
e637727bed XFAIL this test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53793 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-19 15:52:06 +00:00
Wojciech Matyjewicz
5c779a46b0 While testing particular algorithms to compute loop iteration count the brute 
force evaluation (ComputeIterationCountExhaustively) should be turned off.

It doesn't apply to trip-count2.ll because this file tests the brute force
evaluation.

The test for PR2364 (2008-05-25-NegativeStepToZero.ll) currently fails
showing that the patch for this bug doesn't work. I'll fix it in a few hours
with a patch for PR2088.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53792 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-19 13:26:15 +00:00
Nick Lewycky
aadc6b68c7 Whoops -- forgot PR reference on this test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51569 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-26 20:23:33 +00:00
Nick Lewycky
04b35e8532 Don't treat values as signed when looking at loop steppings in HowForToNonZero. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51560 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-25 23:43:32 +00:00