[Bug rtl-optimization/78355] LRA generates unaligned accesses when SLOW_UNALIGNED_ACCESS is 1
ebotcazou at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Thu Nov 17 16:19:00 GMT 2016
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78355
--- Comment #8 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
Author: ebotcazou
Date: Thu Nov 17 16:16:38 2016
New Revision: 242554
URL: https://gcc.gnu.org/viewcvs?rev=242554&root=gcc&view=rev
Log:
PR rtl-optimization/78355
* doc/tm.texi.in (SLOW_UNALIGNED_ACCESS): Document that the macro only
needs to deal with unaligned accesses.
* doc/tm.texi: Regenerate.
* lra-constraints.c (simplify_operand_subreg): Only invoke
SLOW_UNALIGNED_ACCESS on innermode if the MEM is not aligned enough.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/doc/tm.texi
trunk/gcc/doc/tm.texi.in
trunk/gcc/lra-constraints.c
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