Use TRUNC.W instead of CVT.W on mips to convert from double to int as to not

runtime/vm/simulator_mips.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 <setjmp.h>  // NOLINT
 #include <stdlib.h>
 
 #include "vm/globals.h"
 #if defined(TARGET_ARCH_MIPS)
 
@@ skipping 1870 matching lines @@
         set_fcsr_bit(fcsr_cc, (fs_val <= ft_val));
         break;
       }
       case COP1_C_ULE: {
         ASSERT(instr->FormatField() == FMT_D);  // Only D supported.
         ASSERT(instr->FdField() == F0);
         set_fcsr_bit(fcsr_cc,
             (fs_val <= ft_val) || isnan(fs_val) || isnan(ft_val));
         break;
       }
-      case COP1_CVT_D: {
+      case COP1_TRUNC_W: {
         switch (instr->FormatField()) {
-          case FMT_W: {
-            int32_t fs_int = get_fregister(instr->FsField());
-            double fs_dbl = static_cast<double>(fs_int);
-            set_fregister_double(instr->FdField(), fs_dbl);
-            break;
-          }
-          case FMT_S: {
-            float fs_flt = get_fregister_float(instr->FsField());
-            double fs_dbl = static_cast<double>(fs_flt);
-            set_fregister_double(instr->FdField(), fs_dbl);
-            break;
-          }
-          case FMT_L: {
-            int64_t fs_int = get_fregister_long(instr->FsField());
-            double fs_dbl = static_cast<double>(fs_int);
-            set_fregister_double(instr->FdField(), fs_dbl);
+          case FMT_D: {
+            double fs_dbl = get_fregister_double(instr->FsField());
+            int32_t fs_int;
+            if (isnan(fs_dbl) || isinf(fs_dbl) || (fs_dbl > kMaxInt32) ||
+                (fs_dbl < kMinInt32)) {
+              fs_int = kMaxInt32;
+            } else {
+              fs_int = static_cast<int32_t>(fs_dbl);
+            }
+            set_fregister(instr->FdField(), fs_int);
             break;
           }
           default: {
             OS::PrintErr("DecodeCop1: 0x%x\n", instr->InstructionBits());
             UnimplementedInstruction(instr);
             break;
           }
         }
         break;
       }
-      case COP1_CVT_W: {
+      case COP1_CVT_D: {
         switch (instr->FormatField()) {
-          case FMT_D: {
-            double fs_dbl = get_fregister_double(instr->FsField());
-            int32_t fs_int;
-            if (isnan(fs_dbl) || isinf(fs_dbl) || (fs_dbl > INT_MAX) ||
-                (fs_dbl < INT_MIN)) {
-              fs_int = INT_MIN;
-            } else {
-              fs_int = static_cast<int32_t>(fs_dbl);
-            }
-            set_fregister(instr->FdField(), fs_int);
+          case FMT_W: {
+            int32_t fs_int = get_fregister(instr->FsField());
+            double fs_dbl = static_cast<double>(fs_int);
+            set_fregister_double(instr->FdField(), fs_dbl);
+            break;
+          }
+          case FMT_S: {
+            float fs_flt = get_fregister_float(instr->FsField());
+            double fs_dbl = static_cast<double>(fs_flt);
+            set_fregister_double(instr->FdField(), fs_dbl);
             break;
           }
           default: {
             OS::PrintErr("DecodeCop1: 0x%x\n", instr->InstructionBits());
             UnimplementedInstruction(instr);
             break;
           }
         }
         break;
       }
@@ skipping 597 matching lines @@
   set_register(kExceptionObjectReg, bit_cast<int32_t>(raw_exception));
   set_register(kStackTraceObjectReg, bit_cast<int32_t>(raw_stacktrace));
   buf->Longjmp();
 }
 
 }  // namespace dart
 
 #endif  // defined(USING_SIMULATOR)
 
 #endif  // defined TARGET_ARCH_MIPS