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[TargetSchedule] Use 'isOutOfOrder' as possible to avoid magic number. NFC.

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Summary:
Using isOutOfOrder makes the code more clear.

Reviewers: rengolin, atrick, hfinkel.

Differential Revision: http://reviews.llvm.org/D21548


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273255 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Junmo Park 2016-06-21 08:09:58 +00:00
parent 159271069e
commit 9200ab3b01
1 changed files with 2 additions and 3 deletions
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5
lib/CodeGen/TargetSchedule.cpp
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@ -267,11 +267,10 @@ TargetSchedModel::computeInstrLatency(const MachineInstr *MI,
unsigned TargetSchedModel::
computeOutputLatency(const MachineInstr *DefMI, unsigned DefOperIdx,
const MachineInstr *DepMI) const {
if (SchedModel.MicroOpBufferSize <= 1)
if (!SchedModel.isOutOfOrder())
return 1;
// MicroOpBufferSize > 1 indicates an out-of-order processor that can dispatch
// WAW dependencies in the same cycle.
// Out-of-order processor can dispatch WAW dependencies in the same cycle.
// Treat predication as a data dependency for out-of-order cpus. In-order
// cpus do not need to treat predicated writes specially.