99 lines
2.3 KiB
C
99 lines
2.3 KiB
C
/* This plugin verifies the source-code location ranges of
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expressions, at the pre-gimplification tree stage. */
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/* { dg-options "-O" } */
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#include "gcc-plugin.h"
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#include "config.h"
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#include "system.h"
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#include "coretypes.h"
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#include "tm.h"
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#include "tree.h"
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#include "stringpool.h"
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#include "toplev.h"
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#include "basic-block.h"
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#include "hash-table.h"
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#include "vec.h"
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#include "ggc.h"
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#include "basic-block.h"
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#include "tree-ssa-alias.h"
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#include "internal-fn.h"
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#include "gimple-fold.h"
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#include "tree-eh.h"
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#include "gimple-expr.h"
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#include "is-a.h"
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#include "gimple.h"
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#include "gimple-iterator.h"
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#include "tree.h"
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#include "tree-pass.h"
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#include "intl.h"
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#include "plugin-version.h"
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#include "diagnostic.h"
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#include "context.h"
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#include "print-tree.h"
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int plugin_is_GPL_compatible;
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static void
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emit_warning (location_t loc)
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{
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source_range src_range = get_range_from_loc (line_table, loc);
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warning_at (loc, 0,
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"tree range %i:%i-%i:%i",
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LOCATION_LINE (src_range.m_start),
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LOCATION_COLUMN (src_range.m_start),
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LOCATION_LINE (src_range.m_finish),
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LOCATION_COLUMN (src_range.m_finish));
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}
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tree
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cb_walk_tree_fn (tree * tp, int * walk_subtrees,
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void * data ATTRIBUTE_UNUSED)
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{
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if (TREE_CODE (*tp) != CALL_EXPR)
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return NULL_TREE;
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tree call_expr = *tp;
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tree fn = CALL_EXPR_FN (call_expr);
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if (TREE_CODE (fn) != ADDR_EXPR)
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return NULL_TREE;
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fn = TREE_OPERAND (fn, 0);
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if (TREE_CODE (fn) != FUNCTION_DECL)
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return NULL_TREE;
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if (strcmp (IDENTIFIER_POINTER (DECL_NAME (fn)), "__emit_expression_range"))
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return NULL_TREE;
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/* Get arg 1; print it! */
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tree arg = CALL_EXPR_ARG (call_expr, 1);
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emit_warning (EXPR_LOCATION (arg));
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return NULL_TREE;
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}
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static void
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callback (void *gcc_data, void *user_data)
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{
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tree fndecl = (tree)gcc_data;
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walk_tree (&DECL_SAVED_TREE (fndecl), cb_walk_tree_fn, NULL, NULL);
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}
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int
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plugin_init (struct plugin_name_args *plugin_info,
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struct plugin_gcc_version *version)
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{
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struct register_pass_info pass_info;
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const char *plugin_name = plugin_info->base_name;
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int argc = plugin_info->argc;
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struct plugin_argument *argv = plugin_info->argv;
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if (!plugin_default_version_check (version, &gcc_version))
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return 1;
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register_callback (plugin_name,
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PLUGIN_PRE_GENERICIZE,
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callback,
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NULL);
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return 0;
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}
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