Revert the earlier change that removed the M_REMATERIALIZABLE machine

instruction flag, and use the flag along with a virtual member function
hook for targets to override if there are instructions that are only
trivially rematerializable with specific operands (i.e. constant pool
loads).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37728 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 1 insertions, 0 deletions

diff --git a/utils/TableGen/CodeGenInstruction.h b/utils/TableGen/CodeGenInstruction.h
index 4f76de8..54d9b3f 100644
--- a/utils/TableGen/CodeGenInstruction.h
+++ b/utils/TableGen/CodeGenInstruction.h
@@ -91,6 +91,7 @@ namespace llvm {
     bool isConvertibleToThreeAddress;
     bool isCommutable;
     bool isTerminator;
+    bool isReMaterializable;
     bool hasDelaySlot;
     bool usesCustomDAGSchedInserter;
     bool hasVariableNumberOfOperands;