[PATCH] D66588: [ARM NEON] Avoid duplicated decarations

[Diogo N. Sampaio via Phabricator via cfe-commits]

dnsampaio updated this revision to Diff 216801.
dnsampaio added a comment.

- Consider BigEndianSafe intrinsics that all inputs and outputs are scalar or single element vectors


Repository:
  rC Clang

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D66588/new/

https://reviews.llvm.org/D66588

Files:
  utils/TableGen/NeonEmitter.cpp


Index: utils/TableGen/NeonEmitter.cpp
===================================================================
--- utils/TableGen/NeonEmitter.cpp
+++ utils/TableGen/NeonEmitter.cpp
@@ -332,6 +332,17 @@
   NeonEmitter &Emitter;
   std::stringstream OS;
 
+  bool isBigEndianSafe() const {
+    if (BigEndianSafe)
+      return true;
+
+    for (const auto &T : Types){
+      if (T.isVector() && T.getNumElements() > 1)
+        return false;
+    }
+    return true;
+  }
+
 public:
   Intrinsic(Record *R, StringRef Name, StringRef Proto, TypeSpec OutTS,
             TypeSpec InTS, ClassKind CK, ListInit *Body, NeonEmitter &Emitter,
@@ -1293,7 +1304,7 @@
 }
 
 void Intrinsic::emitArgumentReversal() {
-  if (BigEndianSafe)
+  if (isBigEndianSafe())
     return;
 
   // Reverse all vector arguments.
@@ -1314,7 +1325,7 @@
 }
 
 void Intrinsic::emitReturnReversal() {
-  if (BigEndianSafe)
+  if (isBigEndianSafe())
     return;
   if (!getReturnType().isVector() || getReturnType().isVoid() ||
       getReturnType().getNumElements() == 1)
@@ -1889,6 +1900,11 @@
 }
 
 std::string Intrinsic::generate() {
+  // Avoid duplicated code for big and small endians
+  if (isBigEndianSafe()) {
+    generateImpl(false, "", "");
+    return OS.str();
+  }
   // Little endian intrinsics are simple and don't require any argument
   // swapping.
   OS << "#ifdef __LITTLE_ENDIAN__\n";


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