Add all 256 shuffle methods to Float32x4

runtime/vm/intermediate_language_arm.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/globals.h"  // Needed here to get TARGET_ARCH_ARM.
 #if defined(TARGET_ARCH_ARM)
 
 #include "vm/intermediate_language.h"
 
 #include "lib/error.h"
@@ skipping 2947 matching lines @@
   QRegister result = locs()->out().fpu_reg();
   DRegister dresult0 = EvenDRegisterOf(result);
   SRegister sresult0 = EvenSRegisterOf(dresult0);
 
   DRegister dvalue0 = EvenDRegisterOf(value);
   DRegister dvalue1 = OddDRegisterOf(value);
 
   // For these cases the vdup instruction requires fewer
   // instructions. For arbitrary shuffles, vtbl will be needed.
   switch (op_kind()) {
-    case MethodRecognizer::kFloat32x4ShuffleXXXX:
-      __ vdup(kWord, result, dvalue0, 0);
-      break;
-    case MethodRecognizer::kFloat32x4ShuffleYYYY:
-      __ vdup(kWord, result, dvalue0, 1);
-      break;
-    case MethodRecognizer::kFloat32x4ShuffleZZZZ:
-      __ vdup(kWord, result, dvalue1, 0);
-      break;
-    case MethodRecognizer::kFloat32x4ShuffleWWWW:
-      __ vdup(kWord, result, dvalue1, 1);
-      break;
     case MethodRecognizer::kFloat32x4ShuffleX:
       __ vdup(kWord, result, dvalue0, 0);
       __ vcvtds(dresult0, sresult0);
       break;
     case MethodRecognizer::kFloat32x4ShuffleY:
       __ vdup(kWord, result, dvalue0, 1);
       __ vcvtds(dresult0, sresult0);
       break;
     case MethodRecognizer::kFloat32x4ShuffleZ:
       __ vdup(kWord, result, dvalue1, 0);
       __ vcvtds(dresult0, sresult0);
       break;
     case MethodRecognizer::kFloat32x4ShuffleW:
       __ vdup(kWord, result, dvalue1, 1);
       __ vcvtds(dresult0, sresult0);
       break;
+    case MethodRecognizer::kFloat32x4Shuffle:
+      if (mask_ == 0x00) {
+        __ vdup(kWord, result, dvalue0, 0);
+      } else if (mask_ == 0x55) {
+        __ vdup(kWord, result, dvalue0, 1);
+      } else if (mask_ == 0xAA) {
+        __ vdup(kWord, result, dvalue1, 0);
+      } else  if (mask_ == 0xFF) {
+        __ vdup(kWord, result, dvalue1, 1);
+      } else {
+        // TODO(zra): Implement other shuffles.
+        UNIMPLEMENTED();
+      }
+      break;
     default: UNREACHABLE();
   }
 }
 
 
 LocationSummary* Float32x4ConstructorInstr::MakeLocationSummary() const {
   const intptr_t kNumInputs = 4;
   const intptr_t kNumTemps = 0;
   LocationSummary* summary =
       new LocationSummary(kNumInputs, kNumTemps, LocationSummary::kNoCall);
@@ skipping 926 matching lines @@
   compiler->GenerateCall(token_pos(),
                          &label,
                          PcDescriptors::kOther,
                          locs());
   __ Drop(2);  // Discard type arguments and receiver.
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_ARM