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| author | Evan Cheng <evan.cheng@apple.com> | 2011-04-26 21:31:35 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2011-04-26 21:31:35 +0000 |
| commit | 554daa67bd1c4f01fb7a00f2f4255a52b81e9fa3 (patch) | |
| tree | 94e9a50d8a25d4072cacd8cf9b2634461838e079 /lib/Analysis/MemoryDependenceAnalysis.cpp | |
| parent | 90fab0f9d8e275f26f2e58bd5aaf9a3ac389dfaa (diff) | |
Be careful about scheduling nodes above previous calls. It increase usages of
more callee-saved registers and introduce copies. Only allows it if scheduling
a node above calls would end up lessen register pressure.
Call operands also has added ABI restrictions for register allocation, so be
extra careful with hoisting them above calls.
rdar://9329627
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130245 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Analysis/MemoryDependenceAnalysis.cpp')
0 files changed, 0 insertions, 0 deletions