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4 Commits

Author SHA1 Message Date
Dan Gohman 0bddac16a8 Rename ScalarEvolution's getIterationCount to getBackedgeTakenCount, 
to more accurately describe what it does. Expand its doxygen comment
to describe what the backedge-taken count is and how it differs
from the actual iteration count of the loop. Adjust names and
comments in associated code accordingly.

llvm-svn: 65382
 2009-02-24 18:55:53 +00:00
Wojciech Matyjewicz a78669c2cf 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.

llvm-svn: 53792
 2008-07-19 13:26:15 +00:00
Wojciech Matyjewicz ddb265b905 Now that ScalarEvolution::print writes to the correct stream, there is 
no need to redirect stderr into stdout.

llvm-svn: 47009
 2008-02-12 15:12:40 +00:00
Zhou Sheng 6d207a761f Add two test cases to cover apintification change. 
llvm-svn: 36476
 2007-04-26 16:44:48 +00:00