Revision: 6407
Author: [email protected]
Date: Wed Jan 19 09:55:55 2011
Log: Add missing file.
[email protected]
Review URL: http://codereview.chromium.org/6358005
http://code.google.com/p/v8/source/detail?r=6407
Added:
/branches/experimental/gc/src/compiler-intrinsics.h
Modified:
/branches/experimental/gc/src/spaces.cc
=======================================
--- /dev/null
+++ /branches/experimental/gc/src/compiler-intrinsics.h Wed Jan 19 09:55:55
2011
@@ -0,0 +1,59 @@
+// Copyright 2006-2008 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
+// with the distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef V8_COMPILER_INTRINSICS_H_
+#define V8_COMPILER_INTRINSICS_H_
+
+namespace v8 {
+namespace internal {
+
+class CompilerIntrinsics {
+ public:
+ // Returns number of zero bits preceding least significant 1 bit.
+ // Undefined for zero value.
+ INLINE(static int CountTrailingZeros(uint32_t value));
+
+ // Returns number of zero bits following most significant 1 bit.
+ // Undefined for zero value.
+ INLINE(static int CountLeadingZeros(uint32_t value));
+};
+
+#ifdef __GNUC__
+int CompilerIntrinsics::CountTrailingZeros(uint32_t value) {
+ return __builtin_ctz(value);
+}
+
+int CompilerIntrinsics::CountLeadingZeros(uint32_t value) {
+ return __builtin_clz(value);
+}
+#else
+#error Unsupported compiler
+#endif
+
+} } // namespace v8::internal
+
+#endif // V8_COMPILER_INTRINSICS_H_
=======================================
--- /branches/experimental/gc/src/spaces.cc Wed Jan 19 09:39:52 2011
+++ /branches/experimental/gc/src/spaces.cc Wed Jan 19 09:55:55 2011
@@ -799,7 +799,7 @@
HeapObjectIterator it(current_page, NULL);
Address end_of_previous_object = current_page->ObjectAreaStart();
- for(HeapObject* object = it.next(); object != NULL; object =
it.next()) {
+ for (HeapObject* object = it.next(); object != NULL; object =
it.next()) {
ASSERT(end_of_previous_object <= object->address());
// The first word should be a map, and we expect all map pointers
to
@@ -811,10 +811,6 @@
// Perform space-specific object verification.
VerifyObject(object);
- if (object->IsCodeCache() && ((uint32_t*)object->address())[2] ==
0x2) {
- current_page->PrintMarkbits();
- }
-
// The object itself should look OK.
object->Verify();
--
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