/*
 * Copyright 2011-2016 by Emese Revfy <re.emese@gmail.com>
 * Licensed under the GPL v2, or (at your option) v3
 *
 * Homepage:
 * https://github.com/ephox-gcc-plugins/cyclomatic_complexity
 *
 * http://en.wikipedia.org/wiki/Cyclomatic_complexity
 * The complexity M is then defined as:
 * M = E - N + 2P
 * where
 *
 *  E = the number of edges of the graph
 *  N = the number of nodes of the graph
 *  P = the number of connected components (exit nodes).
 *
 * Usage (4.5 - 5):
 * $ make clean; make run
 */

#include "gcc-common.h"

__visible int plugin_is_GPL_compatible;

static struct plugin_info cyc_complexity_plugin_info = {
	.version	= "20160225",
	.help		= "Cyclomatic Complexity\n",
};

static unsigned int cyc_complexity_execute(void)
{
	int complexity;
	expanded_location xloc;

	/* M = E - N + 2P */
	complexity = n_edges_for_fn(cfun) - n_basic_blocks_for_fn(cfun) + 2;

	xloc = expand_location(DECL_SOURCE_LOCATION(current_function_decl));
	fprintf(stderr, "Cyclomatic Complexity %d %s:%s\n", complexity,
		xloc.file, DECL_NAME_POINTER(current_function_decl));

	return 0;
}

#define PASS_NAME cyc_complexity

#define NO_GATE
#define TODO_FLAGS_FINISH TODO_dump_func

#include "gcc-generate-gimple-pass.h"

__visible int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
{
	const char * const plugin_name = plugin_info->base_name;
	struct register_pass_info cyc_complexity_pass_info;

	cyc_complexity_pass_info.pass				= make_cyc_complexity_pass();
	cyc_complexity_pass_info.reference_pass_name		= "ssa";
	cyc_complexity_pass_info.ref_pass_instance_number	= 1;
	cyc_complexity_pass_info.pos_op				= PASS_POS_INSERT_AFTER;

	if (!plugin_default_version_check(version, &gcc_version)) {
		error(G_("incompatible gcc/plugin versions"));
		return 1;
	}

	register_callback(plugin_name, PLUGIN_INFO, NULL,
				&cyc_complexity_plugin_info);
	register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL,
				&cyc_complexity_pass_info);

	return 0;
}
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=b98acbff9a05b371c5f0ca6e44a3af8ce9274379'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools?id=b98acbff9a05b371c5f0ca6e44a3af8ce9274379'>tools</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools/perf?id=b98acbff9a05b371c5f0ca6e44a3af8ce9274379'>perf</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/arch?id=b98acbff9a05b371c5f0ca6e44a3af8ce9274379'>arch</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/arch/arm?id=b98acbff9a05b371c5f0ca6e44a3af8ce9274379'>arm</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/arch/arm/Makefile?id=b98acbff9a05b371c5f0ca6e44a3af8ce9274379'>Makefile</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='b98acbff9a05b371c5f0ca6e44a3af8ce9274379'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Colin Ian King &lt;colin.king@canonical.com&gt;</td><td class='right'>2017-01-11 15:36:20 +0000</td></tr>
<tr><th>committer</th><td>Mark Brown &lt;broonie@kernel.org&gt;</td><td class='right'>2017-01-18 16:32:44 +0000</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/arch/arm/Makefile?id=b98acbff9a05b371c5f0ca6e44a3af8ce9274379'>b98acbff9a05b371c5f0ca6e44a3af8ce9274379</a> (<a href='/cgit.cgi/linux/net-next.git/patch/tools/perf/arch/arm/Makefile?id=b98acbff9a05b371c5f0ca6e44a3af8ce9274379'>patch</a>)</td></tr>
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<div class='commit-subject'>regulator: twl6030: fix range comparison, allowing vsel = 59</div><div class='commit-msg'>The range min_uV &gt; 1350000 &amp;&amp; min_uV &lt;= 150000 is never reachable
because of a typo in the previous range check and hence vsel = 59
is never reached.  Fix the previous range check to enable the
vsel = 59 setting.

Fixes CoverityScan CID#728454 ("Logially dead code")

Signed-off-by: Colin Ian King &lt;colin.king@canonical.com&gt;
Signed-off-by: Mark Brown &lt;broonie@kernel.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=b98acbff9a05b371c5f0ca6e44a3af8ce9274379'>Diffstat</a> (limited to 'tools/perf/arch/arm/Makefile')</div><table summary='diffstat' class='diffstat'>