tree.c (operand_equal_for_phi_arg_p): New.

[gcc.git] / gcc / tree.h

diff --git a/gcc/tree.h b/gcc/tree.h
index dc4a9d44ec89fa8a82237d10311f86e56290b087..b9ce3acd965e14052738794207b5ead50a6eaec2 100644 (file)
--- a/gcc/tree.h
+++ b/gcc/tree.h
@@ -1157,17 +1157,6 @@ struct tree_vec GTY(())
 #define REF_ORIGINAL(NODE) TREE_CHAIN (TREE_CHECK3 (NODE,      \
        INDIRECT_REF, ALIGN_INDIRECT_REF, MISALIGNED_INDIRECT_REF))
 
-/* In a LABELED_BLOCK_EXPR node.  */
-#define LABELED_BLOCK_LABEL(NODE) \
-  TREE_OPERAND_CHECK_CODE (NODE, LABELED_BLOCK_EXPR, 0)
-#define LABELED_BLOCK_BODY(NODE) \
-  TREE_OPERAND_CHECK_CODE (NODE, LABELED_BLOCK_EXPR, 1)
-
-/* In an EXIT_BLOCK_EXPR node.  */
-#define EXIT_BLOCK_LABELED_BLOCK(NODE) \
-  TREE_OPERAND_CHECK_CODE (NODE, EXIT_BLOCK_EXPR, 0)
-#define EXIT_BLOCK_RETURN(NODE) TREE_OPERAND_CHECK_CODE (NODE, EXIT_BLOCK_EXPR, 1)
-
 /* In a LOOP_EXPR node.  */
 #define LOOP_EXPR_BODY(NODE) TREE_OPERAND_CHECK_CODE (NODE, LOOP_EXPR, 0)
 
@@ -3453,6 +3442,7 @@ extern bool commutative_tree_code (enum tree_code);
 extern tree get_case_label (tree);
 extern tree upper_bound_in_type (tree, tree);
 extern tree lower_bound_in_type (tree, tree);
+extern int operand_equal_for_phi_arg_p (tree, tree);
 \f
 /* In stmt.c */
 
@@ -3648,9 +3638,11 @@ extern rtx emit_line_note (location_t);
 
 /* In calls.c */
 
-/* Nonzero if this is a call to a `const' function.  */
+/* Nonzero if this is a call to a function whose return value depends
+   solely on its arguments, has no side effects, and does not read
+   global memory.  */
 #define ECF_CONST              1
-/* Nonzero if this is a call to a `volatile' function.  */
+/* Nonzero if this call will never return.  */
 #define ECF_NORETURN           2
 /* Nonzero if this is a call to malloc or a related function.  */
 #define ECF_MALLOC             4
@@ -3660,21 +3652,18 @@ extern rtx emit_line_note (location_t);
 #define ECF_NOTHROW            16
 /* Nonzero if this is a call to setjmp or a related function.  */
 #define ECF_RETURNS_TWICE      32
-/* Nonzero if this is a call to `longjmp'.  */
-#define ECF_LONGJMP            64
-/* Nonzero if this is a syscall that makes a new process in the image of
-   the current one.  */
-#define ECF_SIBCALL            128
+/* Nonzero if this call replaces the current stack frame.  */
+#define ECF_SIBCALL            64
 /* Nonzero if this is a call to "pure" function (like const function,
    but may read memory.  */
-#define ECF_PURE               256
+#define ECF_PURE               128
 /* Nonzero if this is a call to a function that returns with the stack
    pointer depressed.  */
-#define ECF_SP_DEPRESSED       512
+#define ECF_SP_DEPRESSED       256
 /* Nonzero if this call is known to always return.  */
-#define ECF_ALWAYS_RETURN      1024
+#define ECF_ALWAYS_RETURN      512
 /* Create libcall block around the call.  */
-#define ECF_LIBCALL_BLOCK      2048
+#define ECF_LIBCALL_BLOCK      1024
 
 extern int flags_from_decl_or_type (tree);
 extern int call_expr_flags (tree);