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Re: GCSE store motion
From: Mark Mitchell <firstname.lastname@example.org>
Date: Wed, 15 May 2002 00:26:49 -0700
--On Tuesday, May 14, 2002 10:03:13 PM -0700 "David S. Miller"
> While walking over diffs between 3.1 and the mainline I came across
> PR/5200. Basically the fix on the branch just disabled store-motion
> in GCSE.
> This is one of those "fix it properly on the mainline" cases.
> So who is going to step up and work on fixing store motion?
> Aparently Dan Berlin and Jakub have some idea of the problems.
> Refer to the GNATS PR for more information.
For the time being, please disable it on the mainline too.
Done, as follows:
2002-03-09 Jakub Jelinek <email@example.com>
PR optimization/5172, optimization/5200
* gcse.c (gcse_main): Disable store_motion.
--- gcse.c.~1~ Sun Apr 28 21:54:59 2002
+++ gcse.c Tue May 14 21:00:24 2002
@@ -905,7 +905,8 @@
allocate_reg_info (max_reg_num (), FALSE, FALSE);
- if (!optimize_size && flag_gcse_sm)
+ /* Store motion disabled until it is fixed. */
+ if (0 && !optimize_size && flag_gcse_sm)
/* Record where pseudo-registers are set. */