DBC: Misc double instructions

runtime/vm/simulator_dbc.cc

 // Copyright (c) 2016, 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_DBC)
 
@@ skipping 1692 matching lines @@
       const intptr_t shift_amount =
           (rhs >= kBitsPerWord) ? (kBitsPerWord - 1) : rhs;
       const intptr_t lhs = reinterpret_cast<intptr_t>(FP[rB]) >> kSmiTagSize;
       *reinterpret_cast<intptr_t*>(&FP[rA]) =
           (lhs >> shift_amount) << kSmiTagSize;
       pc++;
     }
     DISPATCH();
   }
 
+  {
+    BYTECODE(Min, A_B_C);
+    const intptr_t lhs = reinterpret_cast<intptr_t>(FP[rB]);
+    const intptr_t rhs = reinterpret_cast<intptr_t>(FP[rC]);
+    FP[rA] = reinterpret_cast<RawObject*>((lhs < rhs) ? lhs : rhs);
+    DISPATCH();
+  }
+
+  {
+    BYTECODE(Max, A_B_C);
+    const intptr_t lhs = reinterpret_cast<intptr_t>(FP[rB]);
+    const intptr_t rhs = reinterpret_cast<intptr_t>(FP[rC]);
+    FP[rA] = reinterpret_cast<RawObject*>((lhs > rhs) ? lhs : rhs);
+    DISPATCH();
+  }
+
 #if defined(ARCH_IS_64_BIT)
   {
     BYTECODE(WriteIntoDouble, A_D);
     const double value = bit_cast<double, RawObject*>(FP[rD]);
     RawDouble* box = RAW_CAST(Double, *SP--);
     box->ptr()->value_ = value;
     FP[rA] = box;
     DISPATCH();
   }
 
@@ skipping 14 matching lines @@
       pc++;
     } else if (box_cid == kDoubleCid) {
       const RawDouble* box = RAW_CAST(Double, FP[rD]);
       FP[rA] = bit_cast<RawObject*, double>(box->ptr()->value_);
       pc++;
     }
     DISPATCH();
   }
 
   {
+    BYTECODE(DoubleToSmi, A_D);
+    const double value = bit_cast<double, RawObject*>(FP[rD]);
+    if (!isnan(value)) {
+      const intptr_t result = static_cast<intptr_t>(value);
+      if ((result <= Smi::kMaxValue) && (result >= Smi::kMinValue)) {
+        FP[rA] = reinterpret_cast<RawObject*>(result << kSmiTagSize);
+        pc++;
+      }
+    }
+    DISPATCH();
+  }
+
+  {
     BYTECODE(SmiToDouble, A_D);
     const intptr_t value = reinterpret_cast<intptr_t>(FP[rD]) >> kSmiTagSize;
     const double result = static_cast<double>(value);
     FP[rA] = bit_cast<RawObject*, double>(result);
     DISPATCH();
   }
 
   {
     BYTECODE(DAdd, A_B_C);
     const double lhs = bit_cast<double, RawObject*>(FP[rB]);
@@ skipping 26 matching lines @@
     FP[rA] = bit_cast<RawObject*, double>(result);
     DISPATCH();
   }
 
   {
     BYTECODE(DNeg, A_D);
     const double value = bit_cast<double, RawObject*>(FP[rD]);
     FP[rA] = bit_cast<RawObject*, double>(-value);
     DISPATCH();
   }
+
+  {
+    BYTECODE(DSqrt, A_D);
+    const double value = bit_cast<double, RawObject*>(FP[rD]);
+    FP[rA] = bit_cast<RawObject*, double>(sqrt(value));
+    DISPATCH();
+  }
+
+  {
+    BYTECODE(DMin, A_B_C);
+    const double lhs = bit_cast<double, RawObject*>(FP[rB]);
+    const double rhs = bit_cast<double, RawObject*>(FP[rC]);
+    FP[rA] = bit_cast<RawObject*, double>(fmin(lhs, rhs));
+    DISPATCH();
+  }
+
+  {
+    BYTECODE(DMax, A_B_C);
+    const double lhs = bit_cast<double, RawObject*>(FP[rB]);
+    const double rhs = bit_cast<double, RawObject*>(FP[rC]);
+    FP[rA] = bit_cast<RawObject*, double>(fmax(lhs, rhs));
+    DISPATCH();
+  }
 #else  // defined(ARCH_IS_64_BIT)
   {
     BYTECODE(WriteIntoDouble, A_D);
     UNIMPLEMENTED();
     DISPATCH();
   }
 
   {
     BYTECODE(UnboxDouble, A_D);
     UNIMPLEMENTED();
     DISPATCH();
   }
 
   {
     BYTECODE(CheckedUnboxDouble, A_D);
     UNIMPLEMENTED();
     DISPATCH();
   }
 
   {
+    BYTECODE(DoubleToSmi, A_D);
+    UNREACHABLE();
+    DISPATCH();
+  }
+
+  {
     BYTECODE(SmiToDouble, A_D);
     UNIMPLEMENTED();
     DISPATCH();
   }
 
   {
     BYTECODE(DAdd, A_B_C);
     UNIMPLEMENTED();
     DISPATCH();
   }
@@ skipping 14 matching lines @@
     BYTECODE(DDiv, A_B_C);
     UNIMPLEMENTED();
     DISPATCH();
   }
 
   {
     BYTECODE(DNeg, A_D);
     UNIMPLEMENTED();
     DISPATCH();
   }
+
+  {
+    BYTECODE(DSqrt, A_D);
+    UNREACHABLE();
+    DISPATCH();
+  }
+
+  {
+    BYTECODE(DMin, A_B_C);
+    UNREACHABLE();
+    DISPATCH();
+  }
+
+  {
+    BYTECODE(DMax, A_B_C);
+    UNREACHABLE();
+    DISPATCH();
+  }
 #endif  // defined(ARCH_IS_64_BIT)
 
   // Return and return like instructions (Instrinsic).
   {
     RawObject* result;  // result to return to the caller.
 
     BYTECODE(Intrinsic, A);
     // Try invoking intrinsic handler. If it succeeds (returns true)
     // then just return the value it returned to the caller.
     result = null_value;
@@ skipping 953 matching lines @@
   pc_ = pc;
   special_[kExceptionSpecialIndex] = raw_exception;
   special_[kStacktraceSpecialIndex] = raw_stacktrace;
   buf->Longjmp();
   UNREACHABLE();
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_DBC