perf tools: Move branch structs to branch.h

We already have it, move those there from events.h so that we untangle
the header dependencies a bit more.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-pnbkqo8jxbi49d4f3yd3b5w3@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/branch.h

 #ifndef _PERF_BRANCH_H
 #define _PERF_BRANCH_H 1
 
+#include <stdio.h>
 #include <stdint.h>
-#include "../perf.h"
+#include <linux/perf_event.h>
+#include <linux/types.h>
+
+struct branch_flags {
+	u64 mispred:1;
+	u64 predicted:1;
+	u64 in_tx:1;
+	u64 abort:1;
+	u64 cycles:16;
+	u64 type:4;
+	u64 reserved:40;
+};
+
+struct branch_entry {
+	u64			from;
+	u64			to;
+	struct branch_flags	flags;
+};
+
+struct branch_stack {
+	u64			nr;
+	struct branch_entry	entries[0];
+};
 
 struct branch_type_stat {
 	bool	branch_to;
@@ -13,8 +36,6 @@ struct branch_type_stat {
 	u64	cross_2m;
 };
 
-struct branch_flags;
-
 void branch_type_count(struct branch_type_stat *st, struct branch_flags *flags,
 		       u64 from, u64 to);
 

tools/perf/util/event.h

@@ -161,26 +161,7 @@ struct ip_callchain {
 	u64 ips[0];
 };
 
-struct branch_flags {
-	u64 mispred:1;
-	u64 predicted:1;
-	u64 in_tx:1;
-	u64 abort:1;
-	u64 cycles:16;
-	u64 type:4;
-	u64 reserved:40;
-};
-
-struct branch_entry {
-	u64			from;
-	u64			to;
-	struct branch_flags	flags;
-};
-
-struct branch_stack {
-	u64			nr;
-	struct branch_entry	entries[0];
-};
+struct branch_stack;
 
 enum {
 	PERF_IP_FLAG_BRANCH		= 1ULL << 0,

tools/perf/util/symbol.h

@@ -12,6 +12,7 @@
 #include <stdio.h>
 #include <byteswap.h>
 #include <libgen.h>
+#include "branch.h"
 #include "build-id.h"
 #include "event.h"
 #include "path.h"