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| author | Owen Anderson <resistor@mac.com> | 2010-09-28 21:57:50 +0000 |
|---|---|---|
| committer | Owen Anderson <resistor@mac.com> | 2010-09-28 21:57:50 +0000 |
| commit | 654d5440a477b1f6c89b051107e041a331f78e27 (patch) | |
| tree | da901f24645ed369ad7c056b4e0ce3ab47e8787e /test | |
| parent | fd60980eb248f44927ea55c1f8d11fa019d318a6 (diff) | |
| download | external_llvm-654d5440a477b1f6c89b051107e041a331f78e27.zip external_llvm-654d5440a477b1f6c89b051107e041a331f78e27.tar.gz external_llvm-654d5440a477b1f6c89b051107e041a331f78e27.tar.bz2 | |
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
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/ARM/ifcvt10.ll | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/test/CodeGen/ARM/ifcvt10.ll b/test/CodeGen/ARM/ifcvt10.ll index 57561eb..707f051 100644 --- a/test/CodeGen/ARM/ifcvt10.ll +++ b/test/CodeGen/ARM/ifcvt10.ll @@ -1,4 +1,4 @@ -; RUN: llc < %s -mtriple=arm-apple-darwin -mcpu=cortex-a8 | FileCheck %s +; RUN: llc < %s -mtriple=arm-apple-darwin -mcpu=cortex-a9 | FileCheck %s ; rdar://8402126 ; Make sure if-converter is not predicating vldmia and ldmia. These are ; micro-coded and would have long issue latency even if predicated on |