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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 | 9023155621d59d47111980c74cfe22cb3f89bfb1 (patch) | |
| tree | 47aba0d17bd3b2a1bf6875d346fe2eea915a85e2 /llvm/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp | |
| parent | 7ff2ce9f0b3c1f5c8eccd03d99693f45aadeedc8 (diff) | |
| download | llvm-9023155621d59d47111980c74cfe22cb3f89bfb1.zip llvm-9023155621d59d47111980c74cfe22cb3f89bfb1.tar.gz llvm-9023155621d59d47111980c74cfe22cb3f89bfb1.tar.bz2 | |
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.
llvm-svn: 5759
Diffstat (limited to 'llvm/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp')
0 files changed, 0 insertions, 0 deletions