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| author | Dan Gohman <gohman@apple.com> | 2010-02-25 06:57:05 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2010-02-25 06:57:05 +0000 |
| commit | 85669637139089eaed8def1583ac04266c9654e2 (patch) | |
| tree | 9179b71a2387b88fd18bfb147114734c0c7d0ccc /utils/TableGen/DAGISelMatcherOpt.cpp | |
| parent | a5028a64634f995630e93390c5c23374a09a450f (diff) | |
| download | external_llvm-85669637139089eaed8def1583ac04266c9654e2.zip external_llvm-85669637139089eaed8def1583ac04266c9654e2.tar.gz external_llvm-85669637139089eaed8def1583ac04266c9654e2.tar.bz2 | |
Make LoopSimplify change conditional branches in loop exiting blocks
which branch on undef to branch on a boolean constant for the edge
exiting the loop. This helps ScalarEvolution compute trip counts for
loops.
Teach ScalarEvolution to recognize single-value PHIs, when safe, and
ForgetSymbolicName to forget such single-value PHI nodes as apprpriate
in ForgetSymbolicName.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97126 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'utils/TableGen/DAGISelMatcherOpt.cpp')
0 files changed, 0 insertions, 0 deletions