I don't think they are target opcodes. These are similar to phi,
copyfromreg, etc. Target opcodes are those that are target specific,
I.e. not shared between targets.
Evan
Sent from my iPhone
On Jul 26, 2007, at 8:36 PM, Christopher Lamb <[EMAIL PROTECTED]
> wrote:
On Jul 26, 2007, at 6:27 PM, Evan Cheng wrote:
On Jul 26, 2007, at 1:12 AM, Christopher Lamb wrote:
/// EmitNode - Generate machine code for an node and needed
dependencies.
///
void ScheduleDAG::EmitNode(SDNode *Node,
@@ -436,6 +578,14 @@
// If machine instruction
if (Node->isTargetOpcode()) {
unsigned Opc = Node->getTargetOpcode();
+
+ // Handle subreg insert/extract specially
+ if (Opc == TargetInstrInfo::EXTRACT_SUBREG ||
+ Opc == TargetInstrInfo::INSERT_SUBREG) {
+ EmitSubregNode(Node, VRBaseMap);
+ return;
+ }
+
Hi Chris,
Is this right? EXTRACT_SUBREG and INSERT_SUBREG are not target
opcodes.
Actually, they are both DAG nodes and target opcodes. ISel lowers
the DAG nodes to target opcodes before schedule DAG sees them.
--
Christopher Lamb
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