From 7441089c9b4df8b397f1f8b0ae486ddb24238a80 Mon Sep 17 00:00:00 2001
From: Bob Wilson <bob.wilson@apple.com>
Date: Wed, 8 Dec 2010 22:36:08 +0000
Subject: [PATCH] Add operators for "_lane" variants of some saturating Neon
 multiply intrinsics so they can be implemented without separate clang
 builtins.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121299 91177308-0d34-0410-b5e6-96231b3b80d8
---
 utils/TableGen/NeonEmitter.cpp | 26 ++++++++++++++++++++++++--
 utils/TableGen/NeonEmitter.h   | 10 ++++++++++
 2 files changed, 34 insertions(+), 2 deletions(-)

diff --git a/utils/TableGen/NeonEmitter.cpp b/utils/TableGen/NeonEmitter.cpp
index 355a9646de2..0b3fdaf29a4 100644
--- a/utils/TableGen/NeonEmitter.cpp
+++ b/utils/TableGen/NeonEmitter.cpp
@@ -660,6 +660,26 @@ static std::string GenOpString(OpKind op, const std::string &proto,
     s += "__a - (" + Extend(typestr, "__b") + " * " +
       Extend(typestr, "__c") + ");";
     break;
+  case OpQDMullLane:
+    s += MangleName("vqdmull", typestr, ClassS) + "(__a, " +
+      SplatLane(nElts, "__b", "__c") + ");";
+    break;
+  case OpQDMlalLane:
+    s += MangleName("vqdmlal", typestr, ClassS) + "(__a, " +
+      SplatLane(nElts, "__b", "__c") + ");";
+    break;
+  case OpQDMlslLane:
+    s += MangleName("vqdmlsl", typestr, ClassS) + "(__a, " +
+      SplatLane(nElts, "__b", "__c") + ");";
+    break;
+  case OpQDMulhLane:
+    s += MangleName("vqdmulh", typestr, ClassS) + "(__a, " +
+      SplatLane(nElts, "__b", "__c") + ");";
+    break;
+  case OpQRDMulhLane:
+    s += MangleName("vqrdmulh", typestr, ClassS) + "(__a, " +
+      SplatLane(nElts, "__b", "__c") + ");";
+    break;
   case OpEq:
     s += "(" + ts + ")(__a == __b);";
     break;
@@ -1103,11 +1123,13 @@ void NeonEmitter::run(raw_ostream &OS) {
   std::vector<Record*> RV = Records.getAllDerivedDefinitions("Inst");
 
   // Emit vmovl and vabd intrinsics first so they can be used by other
-  // intrinsics.
+  // intrinsics.  (Some of the saturating multiply instructions are also
+  // used to implement the corresponding "_lane" variants, but tablegen
+  // sorts the records into alphabetical order so that the "_lane" variants
+  // come after the intrinsics they use.)
   emitIntrinsic(OS, Records.getDef("VMOVL"));
   emitIntrinsic(OS, Records.getDef("VABD"));
 
-  // Unique the return+pattern types, and assign them.
   for (unsigned i = 0, e = RV.size(); i != e; ++i) {
     Record *R = RV[i];
     if (R->getName() != "VMOVL" && R->getName() != "VABD")
diff --git a/utils/TableGen/NeonEmitter.h b/utils/TableGen/NeonEmitter.h
index 69b39e9e4f7..f5fd37e71ab 100644
--- a/utils/TableGen/NeonEmitter.h
+++ b/utils/TableGen/NeonEmitter.h
@@ -47,6 +47,11 @@ enum OpKind {
   OpMlsLane,
   OpMlalLane,
   OpMlslLane,
+  OpQDMullLane,
+  OpQDMlalLane,
+  OpQDMlslLane,
+  OpQDMulhLane,
+  OpQRDMulhLane,
   OpEq,
   OpGe,
   OpLe,
@@ -117,6 +122,11 @@ namespace llvm {
       OpMap["OP_MLS_LN"]= OpMlsLane;
       OpMap["OP_MLAL_LN"] = OpMlalLane;
       OpMap["OP_MLSL_LN"] = OpMlslLane;
+      OpMap["OP_QDMULL_LN"] = OpQDMullLane;
+      OpMap["OP_QDMLAL_LN"] = OpQDMlalLane;
+      OpMap["OP_QDMLSL_LN"] = OpQDMlslLane;
+      OpMap["OP_QDMULH_LN"] = OpQDMulhLane;
+      OpMap["OP_QRDMULH_LN"] = OpQRDMulhLane;
       OpMap["OP_EQ"]    = OpEq;
       OpMap["OP_GE"]    = OpGe;
       OpMap["OP_LE"]    = OpLe;