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| author | Owen Anderson <resistor@mac.com> | 2010-07-14 19:52:16 +0000 |
|---|---|---|
| committer | Owen Anderson <resistor@mac.com> | 2010-07-14 19:52:16 +0000 |
| commit | 2cfe91379b2e6a9f113ba0c911f626a3cea99e5a (patch) | |
| tree | c36773df3117d76e886ed65fa4034d6b118dd895 /llvm/lib/Support/StringPool.cpp | |
| parent | 9765b9817da65c32a6447e07af56e9510e33e75c (diff) | |
| download | llvm-2cfe91379b2e6a9f113ba0c911f626a3cea99e5a.zip llvm-2cfe91379b2e6a9f113ba0c911f626a3cea99e5a.tar.gz llvm-2cfe91379b2e6a9f113ba0c911f626a3cea99e5a.tar.bz2 | |
Extend SimplifyCFG's common-destination folding heuristic to allow a single
"bonus" instruction to be speculatively executed. Add a heuristic to
ensure we're not tripping up out-of-order execution by checking that this bonus
instruction only uses values that were already guaranteed to be available.
This allows us to eliminate the short circuit in (x&1)&&(x&2).
llvm-svn: 108351
Diffstat (limited to 'llvm/lib/Support/StringPool.cpp')
0 files changed, 0 insertions, 0 deletions