Add vmov.f32 to materialize f32 immediate splats which cannot be handled by
integer variants. rdar://10437054
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144608 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp
index b55ef70..e35a570 100644
--- a/lib/Target/ARM/ARMISelLowering.cpp
+++ b/lib/Target/ARM/ARMISelLowering.cpp
@@ -912,6 +912,7 @@
case ARMISD::VGETLANEs: return "ARMISD::VGETLANEs";
case ARMISD::VMOVIMM: return "ARMISD::VMOVIMM";
case ARMISD::VMVNIMM: return "ARMISD::VMVNIMM";
+ case ARMISD::VMOVFPIMM: return "ARMISD::VMOVFPIMM";
case ARMISD::VDUP: return "ARMISD::VDUP";
case ARMISD::VDUPLANE: return "ARMISD::VDUPLANE";
case ARMISD::VEXT: return "ARMISD::VEXT";
@@ -3986,6 +3987,16 @@
SDValue Vmov = DAG.getNode(ARMISD::VMVNIMM, dl, VmovVT, Val);
return DAG.getNode(ISD::BITCAST, dl, VT, Vmov);
}
+
+ // Use vmov.f32 to materialize other v2f32 and v4f32 splats.
+ if (VT == MVT::v2f32 || VT == MVT::v4f32) {
+ ConstantFPSDNode *C = cast<ConstantFPSDNode>(Op.getOperand(0));
+ int ImmVal = ARM_AM::getFP32Imm(C->getValueAPF());
+ if (ImmVal != -1) {
+ SDValue Val = DAG.getTargetConstant(ImmVal, MVT::i32);
+ return DAG.getNode(ARMISD::VMOVFPIMM, dl, VT, Val);
+ }
+ }
}
}