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Diffstat (limited to 'Source/JavaScriptCore/dfg/DFGCommon.h')
| -rw-r--r-- | Source/JavaScriptCore/dfg/DFGCommon.h | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/Source/JavaScriptCore/dfg/DFGCommon.h b/Source/JavaScriptCore/dfg/DFGCommon.h new file mode 100644 index 000000000..469dbd33e --- /dev/null +++ b/Source/JavaScriptCore/dfg/DFGCommon.h @@ -0,0 +1,100 @@ +/* + * Copyright (C) 2011 Apple Inc. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. 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. + * + * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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 DFGCommon_h +#define DFGCommon_h + +#include <wtf/Platform.h> + +#if ENABLE(DFG_JIT) + +#include "CodeOrigin.h" +#include "VirtualRegister.h" + +/* DFG_ENABLE() - turn on a specific features in the DFG JIT */ +#define DFG_ENABLE(DFG_FEATURE) (defined DFG_ENABLE_##DFG_FEATURE && DFG_ENABLE_##DFG_FEATURE) + +// Emit various logging information for debugging, including dumping the dataflow graphs. +#define DFG_ENABLE_DEBUG_VERBOSE 0 +// Emit dumps during propagation, in addition to just after. +#define DFG_ENABLE_DEBUG_PROPAGATION_VERBOSE 0 +// Emit logging for OSR exit value recoveries at every node, not just nodes that +// actually has speculation checks. +#define DFG_ENABLE_VERBOSE_VALUE_RECOVERIES 0 +// Enable generation of dynamic checks into the instruction stream. +#if !ASSERT_DISABLED +#define DFG_ENABLE_JIT_ASSERT 1 +#else +#define DFG_ENABLE_JIT_ASSERT 0 +#endif +// Consistency check contents compiler data structures. +#define DFG_ENABLE_CONSISTENCY_CHECK 0 +// Emit a breakpoint into the head of every generated function, to aid debugging in GDB. +#define DFG_ENABLE_JIT_BREAK_ON_EVERY_FUNCTION 0 +// Emit a breakpoint into the head of every generated node, to aid debugging in GDB. +#define DFG_ENABLE_JIT_BREAK_ON_EVERY_BLOCK 0 +// Emit a breakpoint into the head of every generated node, to aid debugging in GDB. +#define DFG_ENABLE_JIT_BREAK_ON_EVERY_NODE 0 +// Emit a pair of xorPtr()'s on regT0 with the node index to make it easy to spot node boundaries in disassembled code. +#define DFG_ENABLE_XOR_DEBUG_AID 0 +// Emit a breakpoint into the speculation failure code. +#define DFG_ENABLE_JIT_BREAK_ON_SPECULATION_FAILURE 0 +// Log every speculation failure. +#define DFG_ENABLE_VERBOSE_SPECULATION_FAILURE 0 +// Disable the DFG JIT without having to touch Platform.h +#define DFG_DEBUG_LOCAL_DISBALE 0 +// Enable OSR entry from baseline JIT. +#define DFG_ENABLE_OSR_ENTRY ENABLE(DFG_JIT) +// Generate stats on how successful we were in making use of the DFG jit, and remaining on the hot path. +#define DFG_ENABLE_SUCCESS_STATS 0 +// Used to enable conditionally supported opcodes that currently result in performance regressions. +#define DFG_ENABLE_RESTRICTIONS 1 + +namespace JSC { namespace DFG { + +// Type for a reference to another node in the graph. +typedef uint32_t NodeIndex; +static const NodeIndex NoNode = UINT_MAX; + +typedef uint32_t BlockIndex; +static const BlockIndex NoBlock = UINT_MAX; + +struct NodeIndexTraits { + static NodeIndex defaultValue() { return NoNode; } + static void dump(NodeIndex value, FILE* out) + { + if (value == NoNode) + fprintf(out, "-"); + else + fprintf(out, "@%u", value); + } +}; + +} } // namespace JSC::DFG + +#endif // ENABLE(DFG_JIT) + +#endif // DFGCommon_h + |