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authorDan Albert <danalbert@google.com>2015-06-17 11:09:54 -0700
committerDan Albert <danalbert@google.com>2015-06-17 14:15:22 -0700
commitf378ebf14df0952eae870c9865bab8326aa8f137 (patch)
tree31794503eb2a8c64ea5f313b93100f1163afcffb /gcc-4.7/gcc/java/java-gimplify.c
parent2c58169824949d3a597d9fa81931e001ef9b1bd0 (diff)
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Delete old versions of GCC.
Change-Id: I710f125d905290e1024cbd67f48299861790c66c
Diffstat (limited to 'gcc-4.7/gcc/java/java-gimplify.c')
-rw-r--r--gcc-4.7/gcc/java/java-gimplify.c170
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diff --git a/gcc-4.7/gcc/java/java-gimplify.c b/gcc-4.7/gcc/java/java-gimplify.c
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-/* Java(TM) language-specific gimplification routines.
- Copyright (C) 2003, 2004, 2006, 2007, 2007, 2008, 2010
- Free Software Foundation, Inc.
-
-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 3, 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 COPYING3. If not see
-<http://www.gnu.org/licenses/>.
-
-Java and all Java-based marks are trademarks or registered trademarks
-of Sun Microsystems, Inc. in the United States and other countries.
-The Free Software Foundation is independent of Sun Microsystems, Inc. */
-
-#include "config.h"
-#include "system.h"
-#include "coretypes.h"
-#include "tree.h"
-#include "java-tree.h"
-#include "tree-dump.h"
-#include "gimple.h"
-
-static tree java_gimplify_block (tree);
-static enum gimplify_status java_gimplify_modify_expr (tree *);
-static enum gimplify_status java_gimplify_self_mod_expr (tree *, gimple_seq *,
- gimple_seq *);
-
-static void dump_java_tree (enum tree_dump_index, tree);
-
-/* Convert a Java tree to GENERIC. */
-
-void
-java_genericize (tree fndecl)
-{
- walk_tree (&DECL_SAVED_TREE (fndecl), java_replace_references, NULL, NULL);
- dump_java_tree (TDI_original, fndecl);
-}
-
-/* Gimplify a Java tree. */
-
-int
-java_gimplify_expr (tree *expr_p, gimple_seq *pre_p, gimple_seq *post_p)
-{
- enum tree_code code = TREE_CODE (*expr_p);
-
- switch (code)
- {
- case BLOCK:
- *expr_p = java_gimplify_block (*expr_p);
- break;
-
- case MODIFY_EXPR:
- return java_gimplify_modify_expr (expr_p);
-
- case POSTINCREMENT_EXPR:
- case POSTDECREMENT_EXPR:
- case PREINCREMENT_EXPR:
- case PREDECREMENT_EXPR:
- return java_gimplify_self_mod_expr (expr_p, pre_p, post_p);
-
- /* These should already be lowered before we get here. */
- case URSHIFT_EXPR:
- case COMPARE_EXPR:
- case COMPARE_L_EXPR:
- case COMPARE_G_EXPR:
- gcc_unreachable ();
-
- default:
- return GS_UNHANDLED;
- }
-
- return GS_OK;
-}
-
-static enum gimplify_status
-java_gimplify_modify_expr (tree *modify_expr_p)
-{
- tree modify_expr = *modify_expr_p;
- tree lhs = TREE_OPERAND (modify_expr, 0);
- tree rhs = TREE_OPERAND (modify_expr, 1);
- tree lhs_type = TREE_TYPE (lhs);
-
- if (lhs_type != TREE_TYPE (rhs))
- /* Fix up type mismatches to make legal GIMPLE. These are
- generated in several places, in particular null pointer
- assignment and subclass assignment. */
- TREE_OPERAND (modify_expr, 1) = convert (lhs_type, rhs);
-
- return GS_UNHANDLED;
-}
-
-/* Special case handling for volatiles: we need to generate a barrier
- between the reading and the writing. */
-
-static enum gimplify_status
-java_gimplify_self_mod_expr (tree *expr_p, gimple_seq *pre_p ATTRIBUTE_UNUSED,
- gimple_seq *post_p ATTRIBUTE_UNUSED)
-{
- tree lhs = TREE_OPERAND (*expr_p, 0);
-
- if (TREE_CODE (lhs) == COMPONENT_REF
- && TREE_THIS_VOLATILE (TREE_OPERAND (lhs, 1)))
- TREE_THIS_VOLATILE (lhs) = 1;
-
- return GS_UNHANDLED;
-}
-
-
-/* Gimplify BLOCK into a BIND_EXPR. */
-
-static tree
-java_gimplify_block (tree java_block)
-{
- tree decls = BLOCK_VARS (java_block);
- tree body = BLOCK_EXPR_BODY (java_block);
- gimple outer = gimple_current_bind_expr ();
- tree block;
-
- /* Don't bother with empty blocks. */
- if (! body)
- return build_empty_stmt (input_location);
-
- if (IS_EMPTY_STMT (body))
- return body;
-
- /* Make a proper block. Java blocks are unsuitable for BIND_EXPR
- because they use BLOCK_SUBBLOCKS for another purpose. */
- block = make_node (BLOCK);
- BLOCK_VARS (block) = decls;
-
- /* The TREE_USED flag on a block determines whether the debug output
- routines generate info for the variables in that block. */
- TREE_USED (block) = 1;
-
- if (outer != NULL)
- {
- tree b = gimple_bind_block (outer);
- BLOCK_SUBBLOCKS (b) = chainon (BLOCK_SUBBLOCKS (b), block);
- }
- BLOCK_EXPR_BODY (java_block) = NULL_TREE;
-
- return build3 (BIND_EXPR, TREE_TYPE (java_block), decls, body, block);
-}
-
-/* Dump a tree of some kind. This is a convenience wrapper for the
- dump_* functions in tree-dump.c. */
-static void
-dump_java_tree (enum tree_dump_index phase, tree t)
-{
- FILE *stream;
- int flags;
-
- stream = dump_begin (phase, &flags);
- flags |= TDF_SLIM;
- if (stream)
- {
- dump_node (t, flags, stream);
- dump_end (phase, stream);
- }
-}