don't use "ordinary" addressing mode 1 when mvn is appropriate
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32482 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMISelDAGToDAG.cpp b/lib/Target/ARM/ARMISelDAGToDAG.cpp
index 48d918c..a796431 100644
--- a/lib/Target/ARM/ARMISelDAGToDAG.cpp
+++ b/lib/Target/ARM/ARMISelDAGToDAG.cpp
@@ -849,6 +849,8 @@
case ISD::Constant: {
uint32_t val = cast<ConstantSDNode>(N)->getValue();
if(!isRotInt8Immediate(val)) {
+ if (isRotInt8Immediate(~val))
+ return false; //use MVN
Constant *C = ConstantInt::get(Type::UIntTy, val);
int alignment = 2;
SDOperand Addr = CurDAG->getTargetConstantPool(C, MVT::i32, alignment);