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| author | Andrew Trick <atrick@apple.com> | 2012-07-02 18:10:42 +0000 |
|---|---|---|
| committer | Andrew Trick <atrick@apple.com> | 2012-07-02 18:10:42 +0000 |
| commit | 218ee74a011c0d350099c452810da0bd57a15047 (patch) | |
| tree | 58e25d935c68661cd1654a02633e20c3a5c2ea56 /include/llvm/Target/TargetInstrInfo.h | |
| parent | 7c3a65c7edceb3a013cf49d376c3bc016eb871bf (diff) | |
| download | llvm-218ee74a011c0d350099c452810da0bd57a15047.tar.gz llvm-218ee74a011c0d350099c452810da0bd57a15047.tar.bz2 llvm-218ee74a011c0d350099c452810da0bd57a15047.tar.xz | |
Reapply "Make NumMicroOps a variable in the subtarget's instruction itinerary."
Reapplies r159406 with minor cleanup. The regressions appear to have been spurious.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159541 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/Target/TargetInstrInfo.h')
| -rw-r--r-- | include/llvm/Target/TargetInstrInfo.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/llvm/Target/TargetInstrInfo.h b/include/llvm/Target/TargetInstrInfo.h index 9c73cbcf4c..f096946b38 100644 --- a/include/llvm/Target/TargetInstrInfo.h +++ b/include/llvm/Target/TargetInstrInfo.h @@ -651,7 +651,9 @@ public: } /// getNumMicroOps - Return the number of u-operations the given machine - /// instruction will be decoded to on the target cpu. + /// instruction will be decoded to on the target cpu. The itinerary's + /// IssueWidth is the number of microops that can be dispatched each + /// cycle. An instruction with zero microops takes no dispatch resources. virtual unsigned getNumMicroOps(const InstrItineraryData *ItinData, const MachineInstr *MI) const = 0; |