s390: remove RotLeftAndMask32 on s390

src/compiler/s390/code-generator-s390.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/code-generator.h"
 
 #include "src/compilation-info.h"
 #include "src/compiler/code-generator-impl.h"
 #include "src/compiler/gap-resolver.h"
 #include "src/compiler/node-matchers.h"
@@ skipping 1215 matching lines @@
                 Operand(64 - i.InputInt32(1)));
       }
       break;
 #endif
     case kS390_Not32:
       __ Not32(i.OutputRegister(), i.InputRegister(0));
       break;
     case kS390_Not64:
       __ Not64(i.OutputRegister(), i.InputRegister(0));
       break;
-    case kS390_RotLeftAndMask32:
-      if (CpuFeatures::IsSupported(GENERAL_INSTR_EXT)) {
-        int shiftAmount = i.InputInt32(1);
-        int endBit = 63 - i.InputInt32(3);
-        int startBit = 63 - i.InputInt32(2);
-        __ rll(i.OutputRegister(), i.InputRegister(0), Operand(shiftAmount));
-        __ risbg(i.OutputRegister(), i.OutputRegister(), Operand(startBit),
-                 Operand(endBit), Operand::Zero(), true);
-      } else {
-        int shiftAmount = i.InputInt32(1);
-        int clearBitLeft = 63 - i.InputInt32(2);
-        int clearBitRight = i.InputInt32(3);
-        __ rll(i.OutputRegister(), i.InputRegister(0), Operand(shiftAmount));
-        __ sllg(i.OutputRegister(), i.OutputRegister(), Operand(clearBitLeft));
-        __ srlg(i.OutputRegister(), i.OutputRegister(),
-                Operand((clearBitLeft + clearBitRight)));
-        __ sllg(i.OutputRegister(), i.OutputRegister(), Operand(clearBitRight));
-      }
-      break;
 #if V8_TARGET_ARCH_S390X
     case kS390_RotLeftAndClear64:
       if (CpuFeatures::IsSupported(GENERAL_INSTR_EXT)) {
         int shiftAmount = i.InputInt32(1);
         int endBit = 63 - shiftAmount;
         int startBit = 63 - i.InputInt32(2);
         __ risbg(i.OutputRegister(), i.InputRegister(0), Operand(startBit),
                  Operand(endBit), Operand(shiftAmount), true);
       } else {
         int shiftAmount = i.InputInt32(1);
@@ skipping 1306 matching lines @@
       padding_size -= 2;
     }
   }
 }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8