TableGen: Add hasNoSchedulingInfo to instructions

This introduces a new flag that indicates that a specific instruction
will never be present when the MachineScheduler runs and therefore needs
no scheduling information.

This is in preparation for an upcoming commit which checks completeness
of a scheduling model when tablegen runs.

Differential Revision: http://reviews.llvm.org/D17728

llvm-svn: 262383

1 files changed, 1 insertions, 0 deletions

diff --git a/llvm/utils/TableGen/CodeGenInstruction.cpp b/llvm/utils/TableGen/CodeGenInstruction.cpp
index bd26beb3567..ec802363030 100644
--- a/llvm/utils/TableGen/CodeGenInstruction.cpp
+++ b/llvm/utils/TableGen/CodeGenInstruction.cpp
@@ -324,6 +324,7 @@ CodeGenInstruction::CodeGenInstruction(Record *R)
   isExtractSubreg = R->getValueAsBit("isExtractSubreg");
   isInsertSubreg = R->getValueAsBit("isInsertSubreg");
   isConvergent = R->getValueAsBit("isConvergent");
+  hasNoSchedulingInfo = R->getValueAsBit("hasNoSchedulingInfo");
 
   bool Unset;
   mayLoad      = R->getValueAsBitOrUnset("mayLoad", Unset);