From: bmeurer@chromium.org <bmeurer@chromium.org@ce2b1a6d-e550-0410-aec6-3dcde31c8c00>
Date: Wed, 7 May 2014 12:18:23 +0000 (+0000)
Subject: Remove GenerateBooleanCheck() since we have a boolean map now.
X-Git-Tag: upstream/4.7.83~9232
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=066955e45236c8388be1bad8437ac085a5b5958a;p=platform%2Fupstream%2Fv8.git

Remove GenerateBooleanCheck() since we have a boolean map now.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/269343003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21189 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
---

diff --git a/src/arm/stub-cache-arm.cc b/src/arm/stub-cache-arm.cc
index a8867cd..fd53b97 100644
--- a/src/arm/stub-cache-arm.cc
+++ b/src/arm/stub-cache-arm.cc
@@ -1167,19 +1167,6 @@ void LoadStubCompiler::GenerateLoadInterceptor(
 }
 
 
-void StubCompiler::GenerateBooleanCheck(Register object, Label* miss) {
-  Label success;
-  // Check that the object is a boolean.
-  __ LoadRoot(ip, Heap::kTrueValueRootIndex);
-  __ cmp(object, ip);
-  __ b(eq, &success);
-  __ LoadRoot(ip, Heap::kFalseValueRootIndex);
-  __ cmp(object, ip);
-  __ b(ne, miss);
-  __ bind(&success);
-}
-
-
 Handle<Code> StoreStubCompiler::CompileStoreCallback(
     Handle<JSObject> object,
     Handle<JSObject> holder,
diff --git a/src/arm64/stub-cache-arm64.cc b/src/arm64/stub-cache-arm64.cc
index 6a822f7..760fbb3 100644
--- a/src/arm64/stub-cache-arm64.cc
+++ b/src/arm64/stub-cache-arm64.cc
@@ -1136,19 +1136,6 @@ void LoadStubCompiler::GenerateLoadInterceptor(
 }
 
 
-void StubCompiler::GenerateBooleanCheck(Register object, Label* miss) {
-  UseScratchRegisterScope temps(masm());
-  // Check that the object is a boolean.
-  Register true_root = temps.AcquireX();
-  Register false_root = temps.AcquireX();
-  ASSERT(!AreAliased(object, true_root, false_root));
-  __ LoadTrueFalseRoots(true_root, false_root);
-  __ Cmp(object, true_root);
-  __ Ccmp(object, false_root, ZFlag, ne);
-  __ B(ne, miss);
-}
-
-
 Handle<Code> StoreStubCompiler::CompileStoreCallback(
     Handle<JSObject> object,
     Handle<JSObject> holder,
diff --git a/src/ia32/stub-cache-ia32.cc b/src/ia32/stub-cache-ia32.cc
index b49a8e3..adc8cd5 100644
--- a/src/ia32/stub-cache-ia32.cc
+++ b/src/ia32/stub-cache-ia32.cc
@@ -1177,17 +1177,6 @@ void LoadStubCompiler::GenerateLoadInterceptor(
 }
 
 
-void StubCompiler::GenerateBooleanCheck(Register object, Label* miss) {
-  Label success;
-  // Check that the object is a boolean.
-  __ cmp(object, factory()->true_value());
-  __ j(equal, &success);
-  __ cmp(object, factory()->false_value());
-  __ j(not_equal, miss);
-  __ bind(&success);
-}
-
-
 Handle<Code> StoreStubCompiler::CompileStoreCallback(
     Handle<JSObject> object,
     Handle<JSObject> holder,
diff --git a/src/mips/stub-cache-mips.cc b/src/mips/stub-cache-mips.cc
index f859d6b..abccc94 100644
--- a/src/mips/stub-cache-mips.cc
+++ b/src/mips/stub-cache-mips.cc
@@ -1158,17 +1158,6 @@ void LoadStubCompiler::GenerateLoadInterceptor(
 }
 
 
-void StubCompiler::GenerateBooleanCheck(Register object, Label* miss) {
-  Label success;
-  // Check that the object is a boolean.
-  __ LoadRoot(at, Heap::kTrueValueRootIndex);
-  __ Branch(&success, eq, object, Operand(at));
-  __ LoadRoot(at, Heap::kFalseValueRootIndex);
-  __ Branch(miss, ne, object, Operand(at));
-  __ bind(&success);
-}
-
-
 Handle<Code> StoreStubCompiler::CompileStoreCallback(
     Handle<JSObject> object,
     Handle<JSObject> holder,
diff --git a/src/stub-cache.cc b/src/stub-cache.cc
index f83da2c..6bf209b 100644
--- a/src/stub-cache.cc
+++ b/src/stub-cache.cc
@@ -784,9 +784,6 @@ Register LoadStubCompiler::HandlerFrontendHeader(
   } else if (type->Is(HeapType::Number())) {
     function_index = Context::NUMBER_FUNCTION_INDEX;
   } else if (type->Is(HeapType::Boolean())) {
-    // Booleans use the generic oddball map, so an additional check is needed to
-    // ensure the receiver is really a boolean.
-    GenerateBooleanCheck(object_reg, miss);
     function_index = Context::BOOLEAN_FUNCTION_INDEX;
   } else {
     check_type = SKIP_RECEIVER;
diff --git a/src/stub-cache.h b/src/stub-cache.h
index 8f92149..707df6c 100644
--- a/src/stub-cache.h
+++ b/src/stub-cache.h
@@ -376,8 +376,6 @@ class StubCompiler BASE_EMBEDDED {
                            Label* miss,
                            PrototypeCheckType check = CHECK_ALL_MAPS);
 
-  void GenerateBooleanCheck(Register object, Label* miss);
-
   static void GenerateFastApiCall(MacroAssembler* masm,
                                   const CallOptimization& optimization,
                                   Handle<Map> receiver_map,
diff --git a/src/x64/stub-cache-x64.cc b/src/x64/stub-cache-x64.cc
index 04c2ac9..537f412 100644
--- a/src/x64/stub-cache-x64.cc
+++ b/src/x64/stub-cache-x64.cc
@@ -1075,17 +1075,6 @@ void LoadStubCompiler::GenerateLoadInterceptor(
 }
 
 
-void StubCompiler::GenerateBooleanCheck(Register object, Label* miss) {
-  Label success;
-  // Check that the object is a boolean.
-  __ Cmp(object, factory()->true_value());
-  __ j(equal, &success);
-  __ Cmp(object, factory()->false_value());
-  __ j(not_equal, miss);
-  __ bind(&success);
-}
-
-
 Handle<Code> StoreStubCompiler::CompileStoreCallback(
     Handle<JSObject> object,
     Handle<JSObject> holder,