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| author | Andrew Trick <atrick@apple.com> | 2013-01-09 03:36:49 +0000 |
|---|---|---|
| committer | Andrew Trick <atrick@apple.com> | 2013-01-09 03:36:49 +0000 |
| commit | 47579cf390c42e0577519e0a2b6044baece9df00 (patch) | |
| tree | 2744c5de5c5c825a168a20f90b9e099d8feaaf88 /lib/Target/X86/X86ScheduleAtom.td | |
| parent | 2af949ddddfaf2feb4a446c754e09d2d8c207ce4 (diff) | |
| download | external_llvm-47579cf390c42e0577519e0a2b6044baece9df00.zip external_llvm-47579cf390c42e0577519e0a2b6044baece9df00.tar.gz external_llvm-47579cf390c42e0577519e0a2b6044baece9df00.tar.bz2 | |
MIsched: add an ILP window property to machine model.
This was an experimental option, but needs to be defined
per-target. e.g. PPC A2 needs to aggressively hide latency.
I converted some in-order scheduling tests to A2. Hal is working on
more test cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171946 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86ScheduleAtom.td')
| -rw-r--r-- | lib/Target/X86/X86ScheduleAtom.td | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/Target/X86/X86ScheduleAtom.td b/lib/Target/X86/X86ScheduleAtom.td index 8710261..1e5f2d6 100644 --- a/lib/Target/X86/X86ScheduleAtom.td +++ b/lib/Target/X86/X86ScheduleAtom.td @@ -525,6 +525,7 @@ def AtomModel : SchedMachineModel { // OperandCycles may be used for expected latency. let LoadLatency = 3; // Expected cycles, may be overriden by OperandCycles. let HighLatency = 30;// Expected, may be overriden by OperandCycles. + let ILPWindow = 0; // Always try to hide expected latency. let Itineraries = AtomItineraries; } |