[turbofan] Treat the INT32 state of a truncating binary op IC as number or oddball on 32-bit machin…

src/compiler/type-hint-analyzer.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/type-hint-analyzer.h"
 
 #include "src/assembler.h"
 #include "src/code-stubs.h"
 #include "src/compiler/type-hints.h"
 #include "src/ic/ic-state.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
 namespace {
 
-BinaryOperationHint ToBinaryOperationHint(BinaryOpICState::Kind kind) {
+BinaryOperationHint ToBinaryOperationHint(Token::Value op,
+                                          BinaryOpICState::Kind kind) {
   switch (kind) {
     case BinaryOpICState::NONE:
       return BinaryOperationHint::kNone;
     case BinaryOpICState::SMI:
       return BinaryOperationHint::kSignedSmall;
     case BinaryOpICState::INT32:
-      return BinaryOperationHint::kSigned32;
+      return (Token::IsTruncatingBinaryOp(op) && SmiValuesAre31Bits())
+                 ? BinaryOperationHint::kNumberOrOddball
+                 : BinaryOperationHint::kSigned32;
     case BinaryOpICState::NUMBER:
       return BinaryOperationHint::kNumberOrOddball;
     case BinaryOpICState::STRING:
     case BinaryOpICState::GENERIC:
       return BinaryOperationHint::kAny;
   }
   UNREACHABLE();
   return BinaryOperationHint::kNone;
 }
 
@@ skipping 23 matching lines @@
 
 }  // namespace
 
 bool TypeHintAnalysis::GetBinaryOperationHint(TypeFeedbackId id,
                                               BinaryOperationHint* hint) const {
   auto i = infos_.find(id);
   if (i == infos_.end()) return false;
   Handle<Code> code = i->second;
   DCHECK_EQ(Code::BINARY_OP_IC, code->kind());
   BinaryOpICState state(code->GetIsolate(), code->extra_ic_state());
-  *hint = ToBinaryOperationHint(state.kind());
+  *hint = ToBinaryOperationHint(state.op(), state.kind());
   return true;
 }
 
 bool TypeHintAnalysis::GetCompareOperationHint(
     TypeFeedbackId id, CompareOperationHint* hint) const {
   auto i = infos_.find(id);
   if (i == infos_.end()) return false;
   Handle<Code> code = i->second;
   DCHECK_EQ(Code::COMPARE_IC, code->kind());
   CompareICStub stub(code->stub_key(), code->GetIsolate());
@@ skipping 75 matching lines @@
     case CompareOperationFeedback::kNumber:
       return CompareOperationHint::kNumber;
     default:
       return CompareOperationHint::kAny;
   }
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8