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| author | Dan Gohman <gohman@apple.com> | 2009-09-16 02:01:52 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2009-09-16 02:01:52 +0000 |
| commit | 3b7ce109ecd7837464343b29992ae8d7446d9c46 (patch) | |
| tree | 7248741e10fca0eb4f0bb69ca29862a9c1dfc0f9 /llvm/lib/CodeGen/MachineModuleInfo.cpp | |
| parent | 1c28c4db587474ace1dac14dcad1b62ebde9d72b (diff) | |
| download | llvm-3b7ce109ecd7837464343b29992ae8d7446d9c46.zip llvm-3b7ce109ecd7837464343b29992ae8d7446d9c46.tar.gz llvm-3b7ce109ecd7837464343b29992ae8d7446d9c46.tar.bz2 | |
Don't sink gep operators through phi nodes if the result would require
more than one phi, since that leads to higher register pressure on
entry to the phi. This is especially problematic when the phi is in
a loop header, as it increases register pressure throughout the loop.
llvm-svn: 81993
Diffstat (limited to 'llvm/lib/CodeGen/MachineModuleInfo.cpp')
0 files changed, 0 insertions, 0 deletions