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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 | a9c205cc88e57890d36d841ab60c91d7c13fe683 (patch) | |
| tree | 224ea6b8f2d9bd5173e5a25c5d9000abf7abfa58 /llvm/lib/Bitcode/Reader/BitcodeReader.cpp | |
| parent | 1f2adb6f35ad6daadf1ed217d9ac519f0f18d3c7 (diff) | |
| download | llvm-a9c205cc88e57890d36d841ab60c91d7c13fe683.zip llvm-a9c205cc88e57890d36d841ab60c91d7c13fe683.tar.gz llvm-a9c205cc88e57890d36d841ab60c91d7c13fe683.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.
llvm-svn: 97126
Diffstat (limited to 'llvm/lib/Bitcode/Reader/BitcodeReader.cpp')
0 files changed, 0 insertions, 0 deletions