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Re: [RX] Fix PR 83831 -- Unused bclr, bnot, bset insns
- From: Nick Clifton <nickc at redhat dot com>
- To: Oleg Endo <oleg dot endo at t-online dot de>, gcc-patches <gcc-patches at gcc dot gnu dot org>
- Date: Tue, 13 Feb 2018 17:04:18 +0000
- Subject: Re: [RX] Fix PR 83831 -- Unused bclr, bnot, bset insns
- Authentication-results: sourceware.org; auth=none
- References: <1518539843.10908.30.camel@t-online.de>
Hi Oleg,
> OK for trunk?
> gcc/ChangeLog:
>
> PR target/83831
> * config/rx/rx-protos.h (rx_reg_dead_or_unused_after_insn,
> rx_copy_reg_dead_or_unused_notes, rx_fuse_in_memory_bitop): New
> declarations.
> (set_of_reg): New struct.
> (rx_find_set_of_reg, rx_find_use_of_reg): New functions.
> * config/rx/rx.c (rx_reg_dead_or_unused_after_insn,
> rx_copy_reg_dead_or_unused_notes, rx_fuse_in_memory_bitop): New
> functions.
> * config/rx/rx.md (andsi3, iorsi3, xorsi3): Convert to insn_and_split.
> Split into bitclr, bitset, bitinvert patterns if appropriate.
> (*bitset, *bitinvert, *bitclr): Convert to named insn_and_split and
> use rx_fuse_in_memory_bitop.
> (*bitset_in_memory, *bitinvert_in_memory, *bitclr_in_memory): Convert
> to named insn, correct maximum insn length.
>
> gcc/testsuite/ChangeLog:
>
> PR target/83831
> * gcc.target/rx/pr83831.c: New tests.
Approved - please apply - and thanks very much for doing this!
Cheers
Nick