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| author | Chris Lattner <sabre@nondot.org> | 2003-03-31 19:55:43 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2003-03-31 19:55:43 +0000 |
| commit | e941291a7a5b0b6495dc10da7257ea118ac62cce (patch) | |
| tree | 14c66312274b80c0baf2237219ef3f6ba9ef7797 /lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp | |
| parent | 0e08e1beda7e19dc00e6f7fe092447a1c01a7d77 (diff) | |
Initial checkin of PRE on LLVM. This implementation is still lacking in
several ways:
* Load expressions are not PRE'd well. Alias Analysis should be used to
get accurate information when computing anticipatibility.
* The expression collection implementation does not handle PHI nodes properly,
thus the implementation misses many opportunities to PRE.
* This code could be sped up quite a bit
Despite these flaws, the code seems to work well, and handles PR's as one
would expect.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5759 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp')
0 files changed, 0 insertions, 0 deletions