diff options
| author | sayle <sayle@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-01-02 00:15:01 +0000 |
|---|---|---|
| committer | sayle <sayle@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-01-02 00:15:01 +0000 |
| commit | 41e6d31e74f2b9e3ea8fbe3447e56195a18e6ba3 (patch) | |
| tree | 7c808e0f9b99a5e60249250ee8aeb7d54e1559e0 /gcc/loop.c | |
| parent | d39c5ca0dc3ec7fb4dd419888cdf50f77ae450c4 (diff) | |
| download | gcc-41e6d31e74f2b9e3ea8fbe3447e56195a18e6ba3.tar.gz | |
PR rtl-optimization/12092
* loop.c (emit_prefetch_instructions): Do nothing if PREFETCH_BLOCK
is zero.
* gcc.dg/pr12092-1.c: New test case.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@92794 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/loop.c')
| -rw-r--r-- | gcc/loop.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/gcc/loop.c b/gcc/loop.c index faf6cb23b82..7a446eadc12 100644 --- a/gcc/loop.c +++ b/gcc/loop.c @@ -1,6 +1,7 @@ /* Perform various loop optimizations, including strength reduction. - Copyright (C) 1987, 1988, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997, - 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc. + Copyright (C) 1987, 1988, 1989, 1991, 1992, 1993, 1994, 1995, + 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 + Free Software Foundation, Inc. This file is part of GCC. @@ -4116,7 +4117,7 @@ emit_prefetch_instructions (struct loop *loop) struct prefetch_info info[MAX_PREFETCHES]; struct loop_ivs *ivs = LOOP_IVS (loop); - if (!HAVE_prefetch) + if (!HAVE_prefetch || PREFETCH_BLOCK == 0) return; /* Consider only loops w/o calls. When a call is done, the loop is probably |