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| author | Evan Cheng <evan.cheng@apple.com> | 2009-11-12 07:35:05 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2009-11-12 07:35:05 +0000 |
| commit | 586f69a11881d828c056ce017b3fb432341d9657 (patch) | |
| tree | caf876c0d7890ff0b865674caac6d2118ff94046 /lib/CodeGen/RegisterScavenging.cpp | |
| parent | b9d2c03d200bea99470766b0fb53dd07e11b086a (diff) | |
| download | llvm-586f69a11881d828c056ce017b3fb432341d9657.tar.gz llvm-586f69a11881d828c056ce017b3fb432341d9657.tar.bz2 llvm-586f69a11881d828c056ce017b3fb432341d9657.tar.xz | |
- Teach LSR to avoid changing cmp iv stride if it will create an immediate that
cannot be folded into target cmp instruction.
- Avoid a phase ordering issue where early cmp optimization would prevent the
later count-to-zero optimization.
- Add missing checks which could cause LSR to reuse stride that does not have
users.
- Fix a bug in count-to-zero optimization code which failed to find the pre-inc
iv's phi node.
- Remove, tighten, loosen some incorrect checks disable valid transformations.
- Quite a bit of code clean up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86969 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/RegisterScavenging.cpp')
0 files changed, 0 insertions, 0 deletions