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| author | Nick Lewycky <nicholas@mxc.ca> | 2011-01-19 16:59:46 +0000 |
|---|---|---|
| committer | Nick Lewycky <nicholas@mxc.ca> | 2011-01-19 16:59:46 +0000 |
| commit | 30aa8b13c93211f68bb4efddd1e47817a1d107f1 (patch) | |
| tree | 7ade38c10f647ed959557a49079469439b416548 /lib/CodeGen/SplitKit.cpp | |
| parent | 3abd75bf1dc96ee0cd7e8c1b8331e27672437b8b (diff) | |
Add a missed SCEV fold that is required to continue analyzing the IR produced
by indvars through the scev expander.
trunc(add x, y) --> add(trunc x, y). Currently SCEV largely folds the other way
which is probably wrong, but preserved to minimize churn. Instcombine doesn't
do this fold either, demonstrating a missed optz'n opportunity on code doing
add+trunc+add.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123838 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SplitKit.cpp')
0 files changed, 0 insertions, 0 deletions