| commit | 554daa67bd1c4f01fb7a00f2f4255a52b81e9fa3 | [log] [tgz] |
|---|---|---|
| author | Evan Cheng <evan.cheng@apple.com> | Tue Apr 26 21:31:35 2011 +0000 |
| committer | Evan Cheng <evan.cheng@apple.com> | Tue Apr 26 21:31:35 2011 +0000 |
| tree | 94e9a50d8a25d4072cacd8cf9b2634461838e079 | |
| 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