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misched: Allow disabling scoreboard hazard checking for subtargets with a

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valid itinerary but no pipeline stages.

An itinerary can contain useful scheduling information without specifying pipeline stages for each instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157977 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Trick
2012-06-05 03:44:32 +00:00
parent d05b46115f
commit d327d3dddd
2 changed files with 14 additions and 6 deletions
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2
include/llvm/CodeGen/ScheduleHazardRecognizer.h
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@ -46,6 +46,8 @@ public:
/// atIssueLimit - Return true if no more instructions may be issued in this
/// cycle.
///
/// FIXME: remove this once MachineScheduler is the only client.
virtual bool atIssueLimit() const { return false; }
/// getHazardType - Return the hazard type of emitting this node. There are