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-rw-r--r--utils/TableGen/DAGISelEmitter.cpp13
1 files changed, 9 insertions, 4 deletions
diff --git a/utils/TableGen/DAGISelEmitter.cpp b/utils/TableGen/DAGISelEmitter.cpp
index e10558e..c3db37e 100644
--- a/utils/TableGen/DAGISelEmitter.cpp
+++ b/utils/TableGen/DAGISelEmitter.cpp
@@ -775,8 +775,10 @@ bool TreePatternNode::ApplyTypeConstraints(TreePattern &TP, bool NotRegisters) {
Record *OperandNode = Inst.getOperand(i);
// If the instruction expects a predicate operand, we codegen this by
- // setting the predicate to it's "execute always" value.
- if (OperandNode->isSubClassOf("PredicateOperand"))
+ // setting the predicate to it's "execute always" value if it has a
+ // non-empty ExecuteAlways field.
+ if (OperandNode->isSubClassOf("PredicateOperand") &&
+ !ISE.getPredicateOperand(OperandNode).AlwaysOps.empty())
continue;
// Verify that we didn't run out of provided operands.
@@ -2801,8 +2803,11 @@ public:
InstOpNo != II.OperandList.size(); ++InstOpNo) {
std::vector<std::string> Ops;
- // If this is a normal operand, emit it.
- if (!II.OperandList[InstOpNo].Rec->isSubClassOf("PredicateOperand")) {
+ // If this is a normal operand or a predicate operand without
+ // 'execute always', emit it.
+ Record *OperandNode = II.OperandList[InstOpNo].Rec;
+ if (!OperandNode->isSubClassOf("PredicateOperand") ||
+ ISE.getPredicateOperand(OperandNode).AlwaysOps.empty()) {
Ops = EmitResultCode(N->getChild(ChildNo), RetSelected,
InFlagDecled, ResNodeDecled);
AllOps.insert(AllOps.end(), Ops.begin(), Ops.end());