| commit | 654d5440a477b1f6c89b051107e041a331f78e27 | [log] [tgz] |
|---|---|---|
| author | Owen Anderson <resistor@mac.com> | Tue Sep 28 21:57:50 2010 +0000 |
| committer | Owen Anderson <resistor@mac.com> | Tue Sep 28 21:57:50 2010 +0000 |
| tree | da901f24645ed369ad7c056b4e0ce3ab47e8787e | |
| parent | fd60980eb248f44927ea55c1f8d11fa019d318a6 [diff] |
Add a subtarget hook for reporting the misprediction penalty. Use this to provide more precise cost modeling for if-conversion. Now if only we had a way to estimate the misprediction probability. Adjsut CodeGen/ARM/ifcvt10.ll. The pipeline on Cortex-A8 is long enough that it is still profitable to predicate an ldm, but the shorter pipeline on Cortex-A9 makes it unprofitable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114995 91177308-0d34-0410-b5e6-96231b3b80d8