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.h b/llvm/utils/TableGen/CodeGenInstruction.h
index 8f01abd5403..bfdc2c62dce 100644
--- a/llvm/utils/TableGen/CodeGenInstruction.h
+++ b/llvm/utils/TableGen/CodeGenInstruction.h
@@ -257,6 +257,7 @@ namespace llvm {
     bool isExtractSubreg : 1;
     bool isInsertSubreg : 1;
     bool isConvergent : 1;
+    bool hasNoSchedulingInfo : 1;
 
     std::string DeprecatedReason;
     bool HasComplexDeprecationPredicate;