CurDAG->getTargetConstantPool(ConstantInt::get(
Type::getInt32Ty(*CurDAG->getContext()), Val),
TLI.getPointerTy());
- return CurDAG->getMachineNode(XCore::LDWCP_lru6, dl, MVT::i32,
- MVT::Other, CPIdx,
- CurDAG->getEntryNode());
+ SDNode *node = CurDAG->getMachineNode(XCore::LDWCP_lru6, dl, MVT::i32,
+ MVT::Other, CPIdx,
+ CurDAG->getEntryNode());
+ MachineSDNode::mmo_iterator MemOp = MF->allocateMemRefsArray(1);
+ MemOp[0] = MF->getMachineMemOperand(
+ MachinePointerInfo::getConstantPool(), MachineMemOperand::MOLoad, 4, 4);
+ cast<MachineSDNode>(node)->setMemRefs(MemOp, MemOp + 1);
+ return node;
}
break;
}
--- /dev/null
+; RUN: llc < %s -march=xcore -asm-verbose=0 | FileCheck %s
+
+; MachineLICM should hoist the LDWCP out of the loop.
+
+; CHECK: f:
+; CHECK-NEXT: ldw [[REG:r[0-9]+]], cp[.LCPI0_0]
+; CHECK-NEXT: .LBB0_1:
+; CHECK-NEXT: stw [[REG]], r0[0]
+; CHECK-NEXT: bu .LBB0_1
+
+define void @f(i32* nocapture %p) noreturn nounwind {
+entry:
+ br label %bb
+
+bb: ; preds = %bb, %entry
+ volatile store i32 525509670, i32* %p, align 4
+ br label %bb
+}