Message ID | 1432092719-10784-1-git-send-email-jcmvbkbc@gmail.com |
---|---|
State | New |
Headers | show |
On Tue, May 19, 2015 at 8:31 PM, Max Filippov <jcmvbkbc@gmail.com> wrote: > 2015-05-20 Max Filippov <jcmvbkbc@gmail.com> > gcc/ > * config/xtensa/xtensa.c (init_alignment_context): Replace MULT > by BITS_PER_UNIT with ASHIFT by exact_log2 (BITS_PER_UNIT). Approved, please apply.
On Wed, May 20, 2015 at 7:36 PM, augustine.sterling@gmail.com <augustine.sterling@gmail.com> wrote: > On Tue, May 19, 2015 at 8:31 PM, Max Filippov <jcmvbkbc@gmail.com> wrote: >> 2015-05-20 Max Filippov <jcmvbkbc@gmail.com> >> gcc/ >> * config/xtensa/xtensa.c (init_alignment_context): Replace MULT >> by BITS_PER_UNIT with ASHIFT by exact_log2 (BITS_PER_UNIT). > > Approved, please apply. Applied to trunk. Thanks! -- Max
diff --git a/gcc/config/xtensa/xtensa.c b/gcc/config/xtensa/xtensa.c index eb039ba..7296e36 100644 --- a/gcc/config/xtensa/xtensa.c +++ b/gcc/config/xtensa/xtensa.c @@ -1461,8 +1461,9 @@ init_alignment_context (struct alignment_context *ac, rtx mem) if (ac->shift != NULL_RTX) { /* Shift is the byte count, but we need the bitcount. */ - ac->shift = expand_simple_binop (SImode, MULT, ac->shift, - GEN_INT (BITS_PER_UNIT), + gcc_assert (exact_log2 (BITS_PER_UNIT) >= 0); + ac->shift = expand_simple_binop (SImode, ASHIFT, ac->shift, + GEN_INT (exact_log2 (BITS_PER_UNIT)), NULL_RTX, 1, OPTAB_DIRECT); ac->modemask = expand_simple_binop (SImode, ASHIFT, GEN_INT (GET_MODE_MASK (mode)),