--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dmd/backend/SFL.d	Sat Oct 24 08:42:06 2009 +0400
@@ -0,0 +1,67 @@
+module dmd.backend.SFL;
+
+enum SFL
+{
+	SFLmark	= 0x08,	// temporary marker
+	SFLvalue = 0x01,	// Svalue contains const expression
+	SFLimplem = 0x02,	// if seen implementation of Symbol
+					// (function body for functions,
+					// initializer for variables)
+	SFLdouble = 0x02,	// SCregpar or SCparameter, where float
+					// is really passed as a double
+	SFLfree = 0x04,	// if we can symbol_free() a Symbol in
+					// a Symbol table[]
+	SFLexit = 0x10,	// tyfunc: function does not return
+					// (ex: exit,abort,_assert,longjmp)
+	SFLtrue = 0x200,	// value of Symbol != 0
+	SFLreplace = SFLmark,	// variable gets replaced in inline expansion
+	SFLskipinit = 0x10000,	// SCfield, SCmember: initializer is skipped
+	SFLnodebug = 0x20000,	// don't generate debug info
+	SFLwasstatic = 0x800000, // was an uninitialized static
+	SFLweak	= 0x1000000, // resolve to NULL if not found
+
+	// CPP
+	SFLnodtor = 0x10,	// set if destructor for Symbol is already called
+	SFLdtorexp = 0x80,	// Svalue has expression to tack onto dtor
+	SFLmutable = 0x100000,	// SCmember or SCfield is mutable
+	SFLdyninit = 0x200000,	// symbol has dynamic initializer
+	SFLtmp = 0x400000,	// symbol is a generated temporary
+
+///version (XXX) {///TARGET_LINUX || TARGET_OSX || TARGET_FREEBSD || TARGET_SOLARIS
+///    SFLthunk = 0x40000, // symbol is temporary for thunk
+///}
+
+	// Possible values for protection bits
+	SFLprivate = 0x60,
+	SFLprotected = 0x40,
+	SFLpublic = 0x20,
+	SFLnone	= 0x00,
+	SFLpmask = 0x60,	// mask for the protection bits
+///version (VEC_VTBL_LIST) {
+///	SFLvtbl	= 0x2000,	// Symbol is a vtable or vbtable
+///}
+
+	// OPTIMIZER and CODGEN
+	SFLdead	= 0x800,	// this variable is dead
+	
+	// OPTIMIZER only
+	SFLunambig = 0x400,	// only accessible by unambiguous reference,
+					// i.e. cannot be addressed via pointer
+					// (GTregcand is a subset of this)
+					// P.S. code generator turns off this
+					// flag if any reads are done from it.
+					// This is to eliminate stores to it
+					// that are never read.
+					
+	SFLlivexit = 0x1000,	// live on exit from function
+	SFLnotbasiciv = 0x4000,	// not a basic induction variable
+	SFLnord	= SFLdouble, // SCauto,SCregister,SCtmp: disallow redundant warnings
+	
+	// CODGEN only
+	SFLread	= 0x40000,	// variable is actually read from
+					// (to eliminate dead stores)
+	SFLspill = 0x80000,	// only in register part of the time
+}
+
+import dmd.EnumUtils;
+mixin(BringToCurrentScope!(SFL));
\ No newline at end of file