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