Optimize splat of a scalar load into a shuffle of a vector load when it's legal. e.g.
vector_shuffle (scalar_to_vector (i32 load (ptr + 4))), undef, <0, 0, 0, 0>
=>
vector_shuffle (v4i32 load ptr), undef, <1, 1, 1, 1>
iff ptr is 16-byte aligned (or can be made into 16-byte aligned).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90984 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86ISelLowering.h b/lib/Target/X86/X86ISelLowering.h
index 7b4ab62..89b773d 100644
--- a/lib/Target/X86/X86ISelLowering.h
+++ b/lib/Target/X86/X86ISelLowering.h
@@ -626,7 +626,9 @@
std::pair<SDValue,SDValue> FP_TO_INTHelper(SDValue Op, SelectionDAG &DAG,
bool isSigned);
-
+
+ SDValue LowerAsSplatVectorLoad(SDValue SrcOp, EVT VT, DebugLoc dl,
+ SelectionDAG &DAG);
SDValue LowerBUILD_VECTOR(SDValue Op, SelectionDAG &DAG);
SDValue LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG);
SDValue LowerEXTRACT_VECTOR_ELT(SDValue Op, SelectionDAG &DAG);