From da1d3dc9a5ebc2b7d1c7340b22a872f4dddc7dc6 Mon Sep 17 00:00:00 2001
From: Bob Wilson <bob.wilson@apple.com>
Date: Tue, 7 Dec 2010 23:53:32 +0000
Subject: Emit vmovl intrinsics first in the arm_neon.h header so they can be
 used in the implementations of other intrinsics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121208 91177308-0d34-0410-b5e6-96231b3b80d8
---
 utils/TableGen/NeonEmitter.cpp | 77 ++++++++++++++++++++++++------------------
 utils/TableGen/NeonEmitter.h   |  3 ++
 2 files changed, 47 insertions(+), 33 deletions(-)

diff --git a/utils/TableGen/NeonEmitter.cpp b/utils/TableGen/NeonEmitter.cpp
index 9b38b5eefa..935f7afcdc 100644
--- a/utils/TableGen/NeonEmitter.cpp
+++ b/utils/TableGen/NeonEmitter.cpp
@@ -1040,47 +1040,58 @@ void NeonEmitter::run(raw_ostream &OS) {
 
   std::vector<Record*> RV = Records.getAllDerivedDefinitions("Inst");
 
+  // Emit vmovl intrinsics first so they can be used by other intrinsics.
+  emitIntrinsic(OS, Records.getDef("VMOVL"));
+
   // Unique the return+pattern types, and assign them.
   for (unsigned i = 0, e = RV.size(); i != e; ++i) {
     Record *R = RV[i];
-    std::string name = R->getValueAsString("Name");
-    std::string Proto = R->getValueAsString("Prototype");
-    std::string Types = R->getValueAsString("Types");
-
-    SmallVector<StringRef, 16> TypeVec;
-    ParseTypes(R, Types, TypeVec);
-
-    OpKind kind = OpMap[R->getValueAsDef("Operand")->getName()];
+    if (R->getName() != "VMOVL")
+      emitIntrinsic(OS, R);
+  }
 
-    ClassKind classKind = ClassNone;
-    if (R->getSuperClasses().size() >= 2)
-      classKind = ClassMap[R->getSuperClasses()[1]];
-    if (classKind == ClassNone && kind == OpNone)
-      throw TGError(R->getLoc(), "Builtin has no class kind");
+  OS << "#undef __ai\n\n";
+  OS << "#endif /* __ARM_NEON_H */\n";
+}
 
-    for (unsigned ti = 0, te = TypeVec.size(); ti != te; ++ti) {
-      if (kind == OpReinterpret) {
-        bool outQuad = false;
-        bool dummy = false;
-        (void)ClassifyType(TypeVec[ti], outQuad, dummy, dummy);
-        for (unsigned srcti = 0, srcte = TypeVec.size();
-             srcti != srcte; ++srcti) {
-          bool inQuad = false;
-          (void)ClassifyType(TypeVec[srcti], inQuad, dummy, dummy);
-          if (srcti == ti || inQuad != outQuad)
-            continue;
-          OS << GenIntrinsic(name, Proto, TypeVec[ti], TypeVec[srcti],
-                             OpCast, ClassS);
-        }
-      } else {
-        OS << GenIntrinsic(name, Proto, TypeVec[ti], TypeVec[ti],
-                           kind, classKind);
+/// emitIntrinsic - Write out the arm_neon.h header file definitions for the
+/// intrinsics specified by record R.
+void NeonEmitter::emitIntrinsic(raw_ostream &OS, Record *R) {
+  std::string name = R->getValueAsString("Name");
+  std::string Proto = R->getValueAsString("Prototype");
+  std::string Types = R->getValueAsString("Types");
+
+  SmallVector<StringRef, 16> TypeVec;
+  ParseTypes(R, Types, TypeVec);
+
+  OpKind kind = OpMap[R->getValueAsDef("Operand")->getName()];
+
+  ClassKind classKind = ClassNone;
+  if (R->getSuperClasses().size() >= 2)
+    classKind = ClassMap[R->getSuperClasses()[1]];
+  if (classKind == ClassNone && kind == OpNone)
+    throw TGError(R->getLoc(), "Builtin has no class kind");
+
+  for (unsigned ti = 0, te = TypeVec.size(); ti != te; ++ti) {
+    if (kind == OpReinterpret) {
+      bool outQuad = false;
+      bool dummy = false;
+      (void)ClassifyType(TypeVec[ti], outQuad, dummy, dummy);
+      for (unsigned srcti = 0, srcte = TypeVec.size();
+           srcti != srcte; ++srcti) {
+        bool inQuad = false;
+        (void)ClassifyType(TypeVec[srcti], inQuad, dummy, dummy);
+        if (srcti == ti || inQuad != outQuad)
+          continue;
+        OS << GenIntrinsic(name, Proto, TypeVec[ti], TypeVec[srcti],
+                           OpCast, ClassS);
       }
+    } else {
+      OS << GenIntrinsic(name, Proto, TypeVec[ti], TypeVec[ti],
+                         kind, classKind);
     }
-    OS << "\n";
   }
-  OS << "#undef __ai\n\n";
-  OS << "#endif /* __ARM_NEON_H */\n";
+  OS << "\n";
 }
 
 static unsigned RangeFromType(StringRef typestr) {
diff --git a/utils/TableGen/NeonEmitter.h b/utils/TableGen/NeonEmitter.h
index f157b097cb..39877e7f5d 100644
--- a/utils/TableGen/NeonEmitter.h
+++ b/utils/TableGen/NeonEmitter.h
@@ -131,6 +131,9 @@ namespace llvm {
 
     // runHeader - Emit all the __builtin prototypes used in arm_neon.h
     void runHeader(raw_ostream &o);
+
+  private:
+    void emitIntrinsic(raw_ostream &OS, Record *R);
   };
 
 } // End llvm namespace
-- 
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