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gcc/gcc/c-common.def
Jakub Jelinek 6f9fdf4db2 PR c/4475, c++/3780: 
* c-common.def (SWITCH_STMT): Add SWITCH_TYPE operand.
	* c-common.h (SWITCH_TYPE): Define.
	* c-typeck.c (c_start_case): Set SWITCH_TYPE.
	* stmt.c (all_cases_count): Set lastval to thisval at end of loop.
	Rename spareness variable to sparseness.
	(expand_end_case_type): Renamed from expand_end_case, use orig_type
	if non-NULL instead of TREE_TYPE (orig_index).
	* tree.h (expand_end_case_type): Renamed from expand_end_case.
	(expand_end_case): Define using expand_end_case_type.
	* c-semantics.c (genrtl_switch_stmt): Pass SWITCH_TYPE
	to expand_end_case_type.
	* doc/c-tree.texi (SWITCH_STMT): Document SWITCH_TYPE.

	* semantics.c (begin_switch_stmt): Clear SWITCH_TYPE.
	(finish_switch_cond): Set SWITCH_TYPE.

	* gcc.dg/Wswitch.c: Fix typos.  Don't return unconditionally
	before all tests.  Move warning one line above to match where it
	C frontend emits.
	* gcc.dg/Wswitch-2.c: New test.
	* g++.dg/warn/Wswitch-1.C: New test.
	* g++.dg/warn/Wswitch-2.C: New test.

From-SVN: r49497
2002-02-04 23:05:15 +01:00

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/* This file contains the definitions and documentation for the
additional tree codes used in the GNU C++ compiler (see tree.def
for the standard codes).
Copyright (C) 1987, 1988, 1990, 1993, 1997, 1998,
1999, 2000, 2001 Free Software Foundation, Inc.
Written by Benjamin Chelf <chelf@codesourcery.com>
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING. If not, write to the Free
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA. */
/* Tree nodes relevant to both C and C++. These were originally in
cp-tree.def in the cp subdir. */
/* A node to remember a source position. */
DEFTREECODE (SRCLOC, "srcloc", 'x', 2)
DEFTREECODE (SIZEOF_EXPR, "sizeof_expr", '1', 1)
DEFTREECODE (ARROW_EXPR, "arrow_expr", 'e', 1)
DEFTREECODE (ALIGNOF_EXPR, "alignof_expr", '1', 1)
/* Used to represent an expression statement. Use `EXPR_STMT_EXPR' to
obtain the expression. */
DEFTREECODE (EXPR_STMT, "expr_stmt", 'e', 1)
/* Used to represent a brace-enclosed block. The operand is
COMPOUND_BODY. */
DEFTREECODE (COMPOUND_STMT, "compound_stmt", 'e', 1)
/* Used to represent a local declaration. The operand is
DECL_STMT_DECL. */
DEFTREECODE (DECL_STMT, "decl_stmt", 'e', 1)
/* Represents an 'if' statement. The operands are IF_COND,
THEN_CLAUSE, and ELSE_CLAUSE, respectively. */
DEFTREECODE (IF_STMT, "if_stmt", 'e', 3)
/* Used to represent a `for' statement. The operands are
FOR_INIT_STMT, FOR_COND, FOR_EXPR, and FOR_BODY, respectively. */
DEFTREECODE (FOR_STMT, "for_stmt", 'e', 4)
/* Used to represent a 'while' statement. The operands are WHILE_COND
and WHILE_BODY, respectively. */
DEFTREECODE (WHILE_STMT, "while_stmt", 'e', 2)
/* Used to represent a 'do' statement. The operands are DO_BODY and
DO_COND, respectively. */
DEFTREECODE (DO_STMT, "do_stmt", 'e', 2)
/* Used to represent a 'return' statement. The operand is
RETURN_EXPR. */
DEFTREECODE (RETURN_STMT, "return_stmt", 'e', 1)
/* Used to represent a 'break' statement. */
DEFTREECODE (BREAK_STMT, "break_stmt", 'e', 0)
/* Used to represent a 'continue' statement. */
DEFTREECODE (CONTINUE_STMT, "continue_stmt", 'e', 0)
/* Used to represent a 'switch' statement. The operands are
SWITCH_COND, SWITCH_BODY and SWITCH_TYPE, respectively. */
DEFTREECODE (SWITCH_STMT, "switch_stmt", 'e', 3)
/* Used to represent a 'goto' statement. The operand is GOTO_DESTINATION. */
DEFTREECODE (GOTO_STMT, "goto_stmt", 'e', 1)
/* Used to represent a 'label' statement. The operand is a LABEL_DECL
and can be obtained through the macro LABEL_STMT_LABEL. */
DEFTREECODE (LABEL_STMT, "label_stmt", 'e', 1)
/* Used to represent an inline assembly statement. */
DEFTREECODE (ASM_STMT, "asm_stmt", 'e', 5)
/* A SCOPE_STMT marks the beginning or end of a scope. If
SCOPE_BEGIN_P holds, then this is the start of a scope. If
SCOPE_END_P holds, then this is the end of a scope. If
SCOPE_NULLIFIED_P holds then there turned out to be no variables in
this scope. The SCOPE_STMT_BLOCK is the BLOCK containing the
variables declared in this scope. */
DEFTREECODE (SCOPE_STMT, "scope_stmt", 'e', 1)
/* A FILE_STMT marks the spot where a function changes files. It has no
other semantics. FILE_STMT_FILENAME gives the name. */
DEFTREECODE (FILE_STMT, "file_stmt", 'e', 1)
/* Used to represent a CASE_LABEL. The operands are CASE_LOW and
CASE_HIGH, respectively. If CASE_LOW is NULL_TREE, the label is a
'default' label. If CASE_HIGH is NULL_TREE, the label is a normal case
label. The CASE_LABEL_DECL is a LABEL_DECL for this node. */
DEFTREECODE (CASE_LABEL, "case_label", 'e', 3)
/* A STMT_EXPR represents a statement-expression. The
STMT_EXPR_STMT is the statement given by the expression. */
DEFTREECODE (STMT_EXPR, "stmt_expr", 'e', 1)
/* A COMPOUND_LITERAL_EXPR represents a C99 compound literal. The
COMPOUND_LITERAL_EXPR_DECL_STMT is the a DECL_STMT containing the decl
for the anonymous object represented by the COMPOUND_LITERAL;
the DECL_INITIAL of that decl is the CONSTRUCTOR that initializes
the compound literal. */
DEFTREECODE (COMPOUND_LITERAL_EXPR, "compound_literal_expr", 'e', 1)
/*
Local variables:
mode:c
End:
*/
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