Improve generated code for extending loads and some trunc stores on ARM.

Teach TargetSelectionDAG about lengthening loads for vector types and set v4i8 as legal. Allow FP_TO_UINT for v4i16 from v4i32.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150956 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 45 insertions, 0 deletions

diff --git a/include/llvm/Target/TargetSelectionDAG.td b/include/llvm/Target/TargetSelectionDAG.td
index 3288dd4..f55cf0e 100644
--- a/include/llvm/Target/TargetSelectionDAG.td
+++ b/include/llvm/Target/TargetSelectionDAG.td
@@ -657,6 +657,51 @@ def zextloadi32 : PatFrag<(ops node:$ptr), (zextload node:$ptr), [{
   return cast<LoadSDNode>(N)->getMemoryVT() == MVT::i32;
 }]>;
 
+def extloadvi1  : PatFrag<(ops node:$ptr), (extload node:$ptr), [{
+  return cast<LoadSDNode>(N)->getMemoryVT().getScalarType() == MVT::i1;
+}]>;
+def extloadvi8  : PatFrag<(ops node:$ptr), (extload node:$ptr), [{
+  return cast<LoadSDNode>(N)->getMemoryVT().getScalarType() == MVT::i8;
+}]>;
+def extloadvi16 : PatFrag<(ops node:$ptr), (extload node:$ptr), [{
+  return cast<LoadSDNode>(N)->getMemoryVT().getScalarType() == MVT::i16;
+}]>;
+def extloadvi32 : PatFrag<(ops node:$ptr), (extload node:$ptr), [{
+  return cast<LoadSDNode>(N)->getMemoryVT().getScalarType() == MVT::i32;
+}]>;
+def extloadvf32 : PatFrag<(ops node:$ptr), (extload node:$ptr), [{
+  return cast<LoadSDNode>(N)->getMemoryVT().getScalarType() == MVT::f32;
+}]>;
+def extloadvf64 : PatFrag<(ops node:$ptr), (extload node:$ptr), [{
+  return cast<LoadSDNode>(N)->getMemoryVT().getScalarType() == MVT::f64;
+}]>;
+
+def sextloadvi1  : PatFrag<(ops node:$ptr), (sextload node:$ptr), [{
+  return cast<LoadSDNode>(N)->getMemoryVT().getScalarType() == MVT::i1;
+}]>;
+def sextloadvi8  : PatFrag<(ops node:$ptr), (sextload node:$ptr), [{
+  return cast<LoadSDNode>(N)->getMemoryVT().getScalarType() == MVT::i8;
+}]>;
+def sextloadvi16 : PatFrag<(ops node:$ptr), (sextload node:$ptr), [{
+  return cast<LoadSDNode>(N)->getMemoryVT().getScalarType() == MVT::i16;
+}]>;
+def sextloadvi32 : PatFrag<(ops node:$ptr), (sextload node:$ptr), [{
+  return cast<LoadSDNode>(N)->getMemoryVT().getScalarType() == MVT::i32;
+}]>;
+
+def zextloadvi1  : PatFrag<(ops node:$ptr), (zextload node:$ptr), [{
+  return cast<LoadSDNode>(N)->getMemoryVT().getScalarType() == MVT::i1;
+}]>;
+def zextloadvi8  : PatFrag<(ops node:$ptr), (zextload node:$ptr), [{
+  return cast<LoadSDNode>(N)->getMemoryVT().getScalarType() == MVT::i8;
+}]>;
+def zextloadvi16 : PatFrag<(ops node:$ptr), (zextload node:$ptr), [{
+  return cast<LoadSDNode>(N)->getMemoryVT().getScalarType() == MVT::i16;
+}]>;
+def zextloadvi32 : PatFrag<(ops node:$ptr), (zextload node:$ptr), [{
+  return cast<LoadSDNode>(N)->getMemoryVT().getScalarType() == MVT::i32;
+}]>;
+
 // store fragments.
 def unindexedstore : PatFrag<(ops node:$val, node:$ptr),
                              (st node:$val, node:$ptr), [{