Use .front

arsenm · arsenm · commit b1776bc89244 · 2024-12-13T10:00:56.000+09:00
diff --git a/llvm/lib/CodeGen/RegAllocFast.cpp b/llvm/lib/CodeGen/RegAllocFast.cpp
@@ -998,7 +998,7 @@ void RegAllocFastImpl::allocVirtRegUndef(MachineOperand &MO) {
       PhysReg = getErrorAssignment(*LRI, *MO.getParent(), RC);
       LRI->Error = true;
     } else
-      PhysReg = AllocationOrder[0];
+      PhysReg = AllocationOrder.front();
   }
 
   unsigned SubRegIdx = MO.getSubReg();

Original file line number	Diff line number	Diff line change
`@@ -998,7 +998,7 @@ void RegAllocFastImpl::allocVirtRegUndef(MachineOperand &MO) {`
`998`	`998`	`PhysReg = getErrorAssignment(LRI, MO.getParent(), RC);`
`999`	`999`	`LRI->Error = true;`
`1000`	`1000`	`} else`
`1001`		`- PhysReg = AllocationOrder[0];`
	`1001`	`+ PhysReg = AllocationOrder.front();`
`1002`	`1002`	`}`
`1003`	`1003`
`1004`	`1004`	`unsigned SubRegIdx = MO.getSubReg();`