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| author | Eli Friedman <eli.friedman@gmail.com> | 2011-05-04 19:54:24 +0000 |
|---|---|---|
| committer | Eli Friedman <eli.friedman@gmail.com> | 2011-05-04 19:54:24 +0000 |
| commit | 49cec1d818d0c7d801e786c458896a60eb424524 (patch) | |
| tree | 882141ee27beb9149f5029976eb6bdf2c3c1f58e /lib/CodeGen/MachineInstr.cpp | |
| parent | 2abb82b1d3bc31d75b7c03d76f7343d450f7b394 (diff) | |
Teach MachineCSE how to do simple cross-block CSE involving physregs. This allows, for example, eliminating duplicate cmpl's on x86. Part of rdar://problem/8259436 .
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130862 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/MachineInstr.cpp')
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