Make the CompareStub and the UnaryOpStub accept smi inputs....

src/ia32/full-codegen-ia32.cc

Index: src/ia32/full-codegen-ia32.cc
===================================================================
--- src/ia32/full-codegen-ia32.cc	(revision 5449)
+++ src/ia32/full-codegen-ia32.cc	(working copy)
@@ -684,7 +684,8 @@
 
     // Perform the comparison as if via '==='.
     __ mov(edx, Operand(esp, 0));  // Switch value.
-    if (ShouldInlineSmiCase(Token::EQ_STRICT)) {
+    bool inline_smi_code = ShouldInlineSmiCase(Token::EQ_STRICT);
+    if (inline_smi_code) {
       Label slow_case;
       __ mov(ecx, edx);
       __ or_(ecx, Operand(eax));
@@ -697,7 +698,10 @@
       __ bind(&slow_case);
     }
 
-    CompareStub stub(equal, true);
+    CompareFlags flags = inline_smi_code
+        ? NO_SMI_COMPARE_IN_STUB
+        : NO_COMPARE_FLAGS;
+    CompareStub stub(equal, true, flags);
     __ CallStub(&stub);
     __ test(eax, Operand(eax));
     __ j(not_equal, &next_test);
@@ -3257,7 +3261,7 @@
       bool can_overwrite = expr->expression()->ResultOverwriteAllowed();
       UnaryOverwriteMode overwrite =
           can_overwrite ? UNARY_OVERWRITE : UNARY_NO_OVERWRITE;
-      GenericUnaryOpStub stub(Token::SUB, overwrite);
+      GenericUnaryOpStub stub(Token::SUB, overwrite, NO_UNARY_FLAGS);
       // GenericUnaryOpStub expects the argument to be in the
       // accumulator register eax.
       VisitForValue(expr->expression(), kAccumulator);
@@ -3272,7 +3276,8 @@
       // in the accumulator register eax.
       VisitForValue(expr->expression(), kAccumulator);
       Label done;
-      if (ShouldInlineSmiCase(expr->op())) {
+      bool inline_smi_case = ShouldInlineSmiCase(expr->op());
+      if (inline_smi_case) {
         Label call_stub;
         __ test(eax, Immediate(kSmiTagMask));
         __ j(not_zero, &call_stub);
@@ -3284,7 +3289,10 @@
       bool overwrite = expr->expression()->ResultOverwriteAllowed();
       UnaryOverwriteMode mode =
           overwrite ? UNARY_OVERWRITE : UNARY_NO_OVERWRITE;
-      GenericUnaryOpStub stub(Token::BIT_NOT, mode);
+      UnaryOpFlags flags = inline_smi_case
+          ? NO_UNARY_SMI_CODE_IN_STUB
+          : NO_UNARY_FLAGS;
+      GenericUnaryOpStub stub(Token::BIT_NOT, mode, flags);
       __ CallStub(&stub);
       __ bind(&done);
       Apply(context_, eax);
@@ -3672,7 +3680,8 @@
           UNREACHABLE();
       }
 
-      if (ShouldInlineSmiCase(op)) {
+      bool inline_smi_code = ShouldInlineSmiCase(op);
+      if (inline_smi_code) {
         Label slow_case;
         __ mov(ecx, Operand(edx));
         __ or_(ecx, Operand(eax));
@@ -3683,7 +3692,10 @@
         __ bind(&slow_case);
       }
 
-      CompareStub stub(cc, strict);
+      CompareFlags flags = inline_smi_code
+          ? NO_SMI_COMPARE_IN_STUB
+          : NO_COMPARE_FLAGS;
+      CompareStub stub(cc, strict, flags);
       __ CallStub(&stub);
       __ test(eax, Operand(eax));
       Split(cc, if_true, if_false, fall_through);