From 88cc092ca5bd79480205ee7b01aa39c13f3e35d7 Mon Sep 17 00:00:00 2001
From: Evan Cheng <evan.cheng@apple.com>
Date: Tue, 10 Jul 2007 18:05:01 +0000
Subject: [PATCH] Try committing again. Add OptionalDefOperand. Remove
 clobbersPred.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38498 91177308-0d34-0410-b5e6-96231b3b80d8
---
 utils/TableGen/CodeGenInstruction.h | 2 +-
 utils/TableGen/CodeGenTarget.cpp    | 7 ++++---
 utils/TableGen/InstrInfoEmitter.cpp | 7 ++++++-
 3 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/utils/TableGen/CodeGenInstruction.h b/utils/TableGen/CodeGenInstruction.h
index 54d9b3fea7b..3f59c23a878 100644
--- a/utils/TableGen/CodeGenInstruction.h
+++ b/utils/TableGen/CodeGenInstruction.h
@@ -97,8 +97,8 @@ namespace llvm {
     bool hasVariableNumberOfOperands;
     bool hasCtrlDep;
     bool noResults;
-    bool clobbersPred;
     bool isNotDuplicable;
+    bool hasOptionalDef;
     
     /// ParseOperandName - Parse an operand name like "$foo" or "$foo.bar",
     /// where $foo is a whole operand and $foo.bar refers to a suboperand.
diff --git a/utils/TableGen/CodeGenTarget.cpp b/utils/TableGen/CodeGenTarget.cpp
index 18e11bdb6ff..71fc824eadf 100644
--- a/utils/TableGen/CodeGenTarget.cpp
+++ b/utils/TableGen/CodeGenTarget.cpp
@@ -370,8 +370,8 @@ CodeGenInstruction::CodeGenInstruction(Record *R, const std::string &AsmStr)
   usesCustomDAGSchedInserter = R->getValueAsBit("usesCustomDAGSchedInserter");
   hasCtrlDep   = R->getValueAsBit("hasCtrlDep");
   noResults    = R->getValueAsBit("noResults");
-  clobbersPred = R->getValueAsBit("clobbersPred");
   isNotDuplicable = R->getValueAsBit("isNotDuplicable");
+  hasOptionalDef = false;
   hasVariableNumberOfOperands = false;
   
   DagInit *DI;
@@ -411,9 +411,10 @@ CodeGenInstruction::CodeGenInstruction(Record *R, const std::string &AsmStr)
       if (unsigned NumArgs = MIOpInfo->getNumArgs())
         NumOps = NumArgs;
 
-      if (Rec->isSubClassOf("PredicateOperand")) {
+      if (Rec->isSubClassOf("PredicateOperand"))
         isPredicable = true;
-      }
+      else if (Rec->isSubClassOf("OptionalDefOperand"))
+        hasOptionalDef = true;
     } else if (Rec->getName() == "variable_ops") {
       hasVariableNumberOfOperands = true;
       continue;
diff --git a/utils/TableGen/InstrInfoEmitter.cpp b/utils/TableGen/InstrInfoEmitter.cpp
index af01e4cd75a..da2308e9e42 100644
--- a/utils/TableGen/InstrInfoEmitter.cpp
+++ b/utils/TableGen/InstrInfoEmitter.cpp
@@ -110,6 +110,11 @@ InstrInfoEmitter::GetOperandInfo(const CodeGenInstruction &Inst) {
       if (Inst.OperandList[i].Rec->isSubClassOf("PredicateOperand"))
         Res += "|M_PREDICATE_OPERAND";
         
+      // Optional def operands.  Check to see if the original unexpanded operand
+      // was of type OptionalDefOperand.
+      if (Inst.OperandList[i].Rec->isSubClassOf("OptionalDefOperand"))
+        Res += "|M_OPTIONAL_DEF_OPERAND";
+
       // Fill in constraint info.
       Res += ", " + Inst.OperandList[i].Constraints[j];
       Result.push_back(Res);
@@ -241,8 +246,8 @@ void InstrInfoEmitter::emitRecord(const CodeGenInstruction &Inst, unsigned Num,
   if (Inst.isCommutable) OS << "|M_COMMUTABLE";
   if (Inst.isTerminator) OS << "|M_TERMINATOR_FLAG";
   if (Inst.isReMaterializable) OS << "|M_REMATERIALIZIBLE";
-  if (Inst.clobbersPred) OS << "|M_CLOBBERS_PRED";
   if (Inst.isNotDuplicable) OS << "|M_NOT_DUPLICABLE";
+  if (Inst.hasOptionalDef) OS << "|M_HAS_OPTIONAL_DEF";
   if (Inst.usesCustomDAGSchedInserter)
     OS << "|M_USES_CUSTOM_DAG_SCHED_INSERTION";
   if (Inst.hasVariableNumberOfOperands)
-- 
2.34.1