Support conversion of clamped double values for pixel arrays in Crankshaft.

src/hydrogen-instructions.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 338 matching lines @@
 #define MAKE_CASE(type) case k##type: return #type;
     HYDROGEN_CONCRETE_INSTRUCTION_LIST(MAKE_CASE)
 #undef MAKE_CASE
     case kPhi: return "Phi";
     default: return "";
   }
 }
 
 
 void HValue::SetOperandAt(int index, HValue* value) {
-  ASSERT(value == NULL || !value->representation().IsNone());
   RegisterUse(index, value);
   InternalSetOperandAt(index, value);
 }
 
 
 void HValue::DeleteAndReplaceWith(HValue* other) {
   // We replace all uses first, so Delete can assert that there are none.
   if (other != NULL) ReplaceAllUsesWith(other);
   ASSERT(HasNoUses());
   ClearOperands();
@@ skipping 213 matching lines @@
         HInstruction* cur = cur_block->first();
         while (cur != NULL) {
           ASSERT(cur != this);  // We should reach other_operand before!
           if (cur == other_operand) break;
           cur = cur->next();
         }
         // Must reach other operand in the same block!
         ASSERT(cur == other_operand);
       }
     } else {
+      // If the following assert fires, you may have forgotten an
+      // AddInstruction.
       ASSERT(other_block->Dominates(cur_block));
     }
   }
 
   // Verify that instructions that may have side-effects are followed
   // by a simulate instruction.
   if (HasSideEffects() && !IsOsrEntry()) {
     ASSERT(next()->IsSimulate());
   }
 
@@ skipping 1139 matching lines @@
 
 
 void HCheckPrototypeMaps::Verify() {
   HInstruction::Verify();
   ASSERT(HasNoUses());
 }
 
 #endif
 
 } }  // namespace v8::internal