Hi.
I've just grabbed patch a that was suggested in the PR (and IMHO makes sense).
Patch can bootstrap on ppc64le-redhat-linux and survives regression tests.
Ready to be installed?
Martin
>From e75e997f05d547017b3a962069fa4d1b024420cd Mon Sep 17 00:00:00 2001
From: marxin <mli...@suse.cz>
Date: Tue, 2 Aug 2016 09:21:22 +0200
Subject: [PATCH] Do not enable -fprefetch-loop-arrays with -fprofile-use (PR
gcov-profile/58250).
gcc/ChangeLog:
2016-08-02 Martin Liska <mli...@suse.cz>
* config/i386/i386.c (ix86_option_override_internal):
Do not enable -fprefetch-loop-arrays with -fprofile-use.
---
gcc/config/i386/i386.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 7c8bb17..91cea25 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -5847,7 +5847,7 @@ ix86_option_override_internal (bool main_args_p,
/* Enable sw prefetching at -O3 for CPUS that prefetching is helpful. */
if (opts->x_flag_prefetch_loop_arrays < 0
&& HAVE_prefetch
- && (opts->x_optimize >= 3 || opts->x_flag_profile_use)
+ && opts->x_optimize >= 3
&& !opts->x_optimize_size
&& TARGET_SOFTWARE_PREFETCHING_BENEFICIAL)
opts->x_flag_prefetch_loop_arrays = 1;
--
2.9.2
