tree-ssa.texi (SSA Operands): Remove reference to SSA_OP_VMAYUSE.

	* doc/tree-ssa.texi (SSA Operands): Remove reference to
	SSA_OP_VMAYUSE.
	Synchronize SSA_OP* definitions with source.
	* ssa-iterators.h: Fix comment for FOR_EACH_IMM_USE_STMT.
	Add not to SSA_OP* macro definitions.

From-SVN: r206091

gcc/ChangeLog

+2013-12-18  Aldy Hernandez  <aldyh@redhat.com>
+
+	* doc/tree-ssa.texi (SSA Operands): Remove reference to
+	SSA_OP_VMAYUSE.
+	Synchronize SSA_OP* definitions with source.
+	* ssa-iterators.h: Fix comment for FOR_EACH_IMM_USE_STMT.
+	Add not to SSA_OP* macro definitions.
+
 2013-12-18  Jakub Jelinek  <jakub@redhat.com>
 
 	PR target/59539

gcc/doc/tree-ssa.texi

@@ -265,15 +265,15 @@ those you are interested in.  They are documented in
 #define SSA_OP_USE              0x01    /* @r{Real USE operands.}  */
 #define SSA_OP_DEF              0x02    /* @r{Real DEF operands.}  */
 #define SSA_OP_VUSE             0x04    /* @r{VUSE operands.}  */
-#define SSA_OP_VMAYUSE          0x08    /* @r{USE portion of VDEFS.}  */
-#define SSA_OP_VDEF             0x10    /* @r{DEF portion of VDEFS.}  */
+#define SSA_OP_VDEF             0x08    /* @r{VDEF operands.}  */
 
 /* @r{These are commonly grouped operand flags.}  */
-#define SSA_OP_VIRTUAL_USES     (SSA_OP_VUSE | SSA_OP_VMAYUSE)
-#define SSA_OP_VIRTUAL_DEFS     (SSA_OP_VDEF)
-#define SSA_OP_ALL_USES         (SSA_OP_VIRTUAL_USES | SSA_OP_USE)
-#define SSA_OP_ALL_DEFS         (SSA_OP_VIRTUAL_DEFS | SSA_OP_DEF)
-#define SSA_OP_ALL_OPERANDS     (SSA_OP_ALL_USES | SSA_OP_ALL_DEFS)
+#define SSA_OP_VIRTUAL_USES	(SSA_OP_VUSE)
+#define SSA_OP_VIRTUAL_DEFS	(SSA_OP_VDEF)
+#define SSA_OP_ALL_VIRTUALS     (SSA_OP_VIRTUAL_USES | SSA_OP_VIRTUAL_DEFS)
+#define SSA_OP_ALL_USES		(SSA_OP_VIRTUAL_USES | SSA_OP_USE)
+#define SSA_OP_ALL_DEFS		(SSA_OP_VIRTUAL_DEFS | SSA_OP_DEF)
+#define SSA_OP_ALL_OPERANDS	(SSA_OP_ALL_USES | SSA_OP_ALL_DEFS)
 @end smallexample
 @end enumerate
 
@@ -307,25 +307,10 @@ aren't using operand pointers, use and defs flags can be mixed.
 
 @code{VDEF}s are broken into two flags, one for the
 @code{DEF} portion (@code{SSA_OP_VDEF}) and one for the USE portion
-(@code{SSA_OP_VMAYUSE}).  If all you want to look at are the
-@code{VDEF}s together, there is a fourth iterator macro for this,
-which returns both a def_operand_p and a use_operand_p for each
-@code{VDEF} in the statement.  Note that you don't need any flags for
-this one.
+(@code{SSA_OP_VUSE}).
 
-@smallexample
-  use_operand_p use_p;
-  def_operand_p def_p;
-  ssa_op_iter iter;
-
-  FOR_EACH_SSA_MAYDEF_OPERAND (def_p, use_p, stmt, iter)
-    @{
-      my_code;
-    @}
-@end smallexample
-
-There are many examples in the code as well, as well as the
-documentation in @file{tree-ssa-operands.h}.
+There are many examples in the code, in addition to the documentation
+in @file{tree-ssa-operands.h} and @file{ssa-iterators.h}.
 
 There are also a couple of variants on the stmt iterators regarding PHI
 nodes.

gcc/ssa-iterators.h

@@ -98,7 +98,7 @@ struct imm_use_iterator
    get access to each occurrence of ssavar on the stmt returned by
    that iterator..  for instance:
 
-     FOR_EACH_IMM_USE_STMT (stmt, iter, var)
+     FOR_EACH_IMM_USE_STMT (stmt, iter, ssavar)
        {
          FOR_EACH_IMM_USE_ON_STMT (use_p, iter)
 	   {
@@ -142,13 +142,13 @@ struct ssa_op_iter
   gimple stmt;
 };
 
+/* NOTE: Keep these in sync with doc/tree-ssa.texi.  */
 /* These flags are used to determine which operands are returned during
    execution of the loop.  */
 #define SSA_OP_USE		0x01	/* Real USE operands.  */
 #define SSA_OP_DEF		0x02	/* Real DEF operands.  */
 #define SSA_OP_VUSE		0x04	/* VUSE operands.  */
 #define SSA_OP_VDEF		0x08	/* VDEF operands.  */
-
 /* These are commonly grouped operand flags.  */
 #define SSA_OP_VIRTUAL_USES	(SSA_OP_VUSE)
 #define SSA_OP_VIRTUAL_DEFS	(SSA_OP_VDEF)