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r251500 - in /trunk/gcc: ChangeLog rtlanal.c
- From: rsandifo at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Wed, 30 Aug 2017 11:17:01 -0000
- Subject: r251500 - in /trunk/gcc: ChangeLog rtlanal.c
Author: rsandifo
Date: Wed Aug 30 11:17:01 2017
New Revision: 251500
URL: https://gcc.gnu.org/viewcvs?rev=251500&root=gcc&view=rev
Log:
[48/77] Make subroutines of num_sign_bit_copies operate on scalar_int_mode
Similarly to the nonzero_bits patch, this one moves the mode
class check and VOIDmode handling from num_sign_bit_copies1
to num_sign_bit_copies itself, then changes the subroutines
to operate on scalar_int_modes.
2017-08-30 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* rtlanal.c (num_sign_bit_copies): Handle VOIDmode here rather
than in subroutines. Return 1 for non-integer modes.
(cached_num_sign_bit_copies): Change the type of the mode parameter
to scalar_int_mode.
(num_sign_bit_copies1): Likewise. Remove early exit for other mode
classes. Handle CONST_INT_P first and then check whether X also
has a scalar integer mode. Check the same thing for inner registers
of a SUBREG and for values that are being extended or truncated.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/rtlanal.c