Precompute InstAlias operand mapping to result instruction operand indices.
There should be no functional change from this, but I think it's simpler this
way.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123931 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/CodeGenInstruction.cpp b/utils/TableGen/CodeGenInstruction.cpp
index 08005fb..6b1fc6e 100644
--- a/utils/TableGen/CodeGenInstruction.cpp
+++ b/utils/TableGen/CodeGenInstruction.cpp
@@ -439,6 +439,7 @@
// Now that it is validated, add it.
ResultOperands.push_back(ResultOperand(ADI->getDef()));
+ ResultInstOperandIndex.push_back(i);
++AliasOpNo;
continue;
}
@@ -454,6 +455,7 @@
// Now that it is validated, add it.
ResultOperands.push_back(ResultOperand(static_cast<Record*>(0)));
+ ResultInstOperandIndex.push_back(i);
++AliasOpNo;
continue;
}
@@ -485,6 +487,7 @@
// Now that it is validated, add it.
ResultOperands.push_back(ResultOperand(Result->getArgName(AliasOpNo),
ADI->getDef()));
+ ResultInstOperandIndex.push_back(i);
++AliasOpNo;
continue;
}
@@ -500,6 +503,7 @@
ResultOpRec->getName() +
" for integer result operand!");
ResultOperands.push_back(ResultOperand(II->getValue()));
+ ResultInstOperandIndex.push_back(i);
++AliasOpNo;
continue;
}
@@ -513,21 +517,3 @@
" instruction expects " + utostr(ResultInst->Operands.size())+
" operands!");
}
-
-/// getResultInstOperandIndexForResultOperandIndex - Given an index into the
-/// ResultOperands array, translate it to a valid index in ResultInst's
-/// operand list.
-unsigned CodeGenInstAlias::
-getResultInstOperandIndexForResultOperandIndex(unsigned OpNo) const {
- unsigned OpIdx = 0;
-
- for (unsigned i = 0;; ++i) {
- assert(i != ResultInst->Operands.size() && "Didn't find entry");
- if (ResultInst->Operands[i].getTiedRegister() != -1)
- continue;
-
- if (OpIdx == OpNo) return i;
-
- ++OpIdx;
- }
-}