r251492 - in /trunk/gcc: ChangeLog combine.c ex...

[rsandifo@gcc.gnu.org]

Author: rsandifo
Date: Wed Aug 30 11:14:59 2017
New Revision: 251492

URL: https://gcc.gnu.org/viewcvs?rev=251492&root=gcc&view=rev
Log:
[40/77] Use scalar_int_mode for extraction_insn fields

insv, extv and eztzv modify or read a field in a register or
memory.  The field always has a scalar integer mode, while the
register or memory either has a scalar integer mode or BLKmode.
The mode of the bit position is also a scalar integer.

This patch uses the type system to make that explicit.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
	    Alan Hayward  <alan.hayward@arm.com>
	    David Sherwood  <david.sherwood@arm.com>

gcc/
	* optabs-query.h (extraction_insn::struct_mode): Change type to
	opt_scalar_int_mode and update comment.
	(extraction_insn::field_mode): Change type to scalar_int_mode.
	(extraction_insn::pos_mode): Likewise.
	* combine.c (make_extraction): Update accordingly.
	* optabs-query.c (get_traditional_extraction_insn): Likewise.
	(get_optab_extraction_insn): Likewise.
	* recog.c (simplify_while_replacing): Likewise.
	* expmed.c (narrow_bit_field_mem): Change the type of the mode
	parameter to opt_scalar_int_mode.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/combine.c
    trunk/gcc/expmed.c
    trunk/gcc/optabs-query.c
    trunk/gcc/optabs-query.h
    trunk/gcc/recog.c