From 7b64e7e0cde2704d3f982d31c20a61fac0d39987 Mon Sep 17 00:00:00 2001 From: vekumar Date: Tue, 9 Oct 2012 15:48:45 +0000 Subject: Fix for PR53397 by making prefecthing less agressive git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@192261 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/cfgloop.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'gcc/cfgloop.h') diff --git a/gcc/cfgloop.h b/gcc/cfgloop.h index 9d7b784174d..80af7d8dbc4 100644 --- a/gcc/cfgloop.h +++ b/gcc/cfgloop.h @@ -712,4 +712,18 @@ extern void move_loop_invariants (void); extern bool finite_loop_p (struct loop *); extern void scale_loop_profile (struct loop *loop, int scale, int iteration_bound); +/* Returns the outermost loop of the loop nest that contains LOOP.*/ +static inline struct loop * +loop_outermost (struct loop *loop) +{ + + unsigned n = VEC_length (loop_p, loop->superloops); + + if (n <= 1) + return loop; + + return VEC_index (loop_p, loop->superloops, 1); +} + + #endif /* GCC_CFGLOOP_H */ -- cgit v1.2.1