diff options
Diffstat (limited to 'Source/JavaScriptCore/dfg/DFGNodeFlags.h')
| -rw-r--r-- | Source/JavaScriptCore/dfg/DFGNodeFlags.h | 44 |
1 files changed, 26 insertions, 18 deletions
diff --git a/Source/JavaScriptCore/dfg/DFGNodeFlags.h b/Source/JavaScriptCore/dfg/DFGNodeFlags.h index 463451c39..adb34bf66 100644 --- a/Source/JavaScriptCore/dfg/DFGNodeFlags.h +++ b/Source/JavaScriptCore/dfg/DFGNodeFlags.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012 Apple Inc. All rights reserved. + * Copyright (C) 2012, 2013 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -30,39 +30,46 @@ #if ENABLE(DFG_JIT) +#include <wtf/PrintStream.h> #include <wtf/StdLibExtras.h> namespace JSC { namespace DFG { // Entries in the NodeType enum (below) are composed of an id, a result type (possibly none) // and some additional informative flags (must generate, is constant, etc). -#define NodeResultMask 0xF +#define NodeResultMask 0x7 #define NodeResultJS 0x1 #define NodeResultNumber 0x2 #define NodeResultInt32 0x3 #define NodeResultBoolean 0x4 #define NodeResultStorage 0x5 -#define NodeMustGenerate 0x10 // set on nodes that have side effects, and may not trivially be removed by DCE. -#define NodeHasVarArgs 0x20 -#define NodeClobbersWorld 0x40 -#define NodeMightClobber 0x80 +#define NodeMustGenerate 0x08 // set on nodes that have side effects, and may not trivially be removed by DCE. +#define NodeHasVarArgs 0x10 +#define NodeClobbersWorld 0x20 +#define NodeMightClobber 0x40 -#define NodeBehaviorMask 0x300 -#define NodeMayOverflow 0x100 -#define NodeMayNegZero 0x200 +#define NodeBehaviorMask 0x180 +#define NodeMayOverflow 0x080 +#define NodeMayNegZero 0x100 -#define NodeBackPropMask 0x3C00 -#define NodeUseBottom 0x000 -#define NodeUsedAsNumber 0x400 // The result of this computation may be used in a context that observes fractional, or bigger-than-int32, results. -#define NodeNeedsNegZero 0x800 // The result of this computation may be used in a context that observes -0. -#define NodeUsedAsOther 0x1000 // The result of this computation may be used in a context that distinguishes between NaN and other things (like undefined). +#define NodeBackPropMask 0x1E00 +#define NodeUseBottom 0x0000 +#define NodeUsedAsNumber 0x0200 // The result of this computation may be used in a context that observes fractional, or bigger-than-int32, results. +#define NodeNeedsNegZero 0x0400 // The result of this computation may be used in a context that observes -0. +#define NodeUsedAsOther 0x0800 // The result of this computation may be used in a context that distinguishes between NaN and other things (like undefined). #define NodeUsedAsValue (NodeUsedAsNumber | NodeNeedsNegZero | NodeUsedAsOther) -#define NodeUsedAsInt 0x2000 // The result of this computation is known to be used in a context that prefers, but does not require, integer values. +#define NodeUsedAsInt 0x1000 // The result of this computation is known to be used in a context that prefers, but does not require, integer values. -#define NodeDoesNotExit 0x4000 // This flag is negated to make it natural for the default to be that a node does exit. +#define NodeArithFlagsMask (NodeBehaviorMask | NodeBackPropMask) -typedef uint16_t NodeFlags; +#define NodeDoesNotExit 0x2000 // This flag is negated to make it natural for the default to be that a node does exit. + +#define NodeRelevantToOSR 0x4000 + +#define NodeExitsForward 0x8000 + +typedef uint32_t NodeFlags; static inline bool nodeUsedAsNumber(NodeFlags flags) { @@ -95,7 +102,8 @@ static inline bool nodeCanSpeculateInteger(NodeFlags flags) return true; } -const char* nodeFlagsAsString(NodeFlags); +void dumpNodeFlags(PrintStream&, NodeFlags); +MAKE_PRINT_ADAPTOR(NodeFlagsDump, NodeFlags, dumpNodeFlags); } } // namespace JSC::DFG |