This is a new version of my BE patch from a few weeks ago. This is part 2 and covers all the aarch64 changes.
When combined with the first patch, It fixes up movoi/ci/xi for Big
Endian, so that we end up with the lab of a big-endian integer to be in
the low byte of the highest-numbered register.
This patch requires part 1 and David Sherwood’s patch:
[AArch64] [BE] [1/2] Make large opaque integer modes endianness-safe.
When tested with David’s patch and [1/2] of this patch, no regressions
were seen when testing aarch64 and x86_64 on make check.
Changelog:
2014-11-14 Alan Hayward <alan.hayw...@arm.com>
* config/aarch64/aarch64.c
(aarch64_classify_address): Allow extra addressing modes for BE.
(aarch64_print_operand): new operand for printing a q register+1.
(aarch64_simd_emit_reg_reg_move): replacement for
aarch64_simd_disambiguate_copy that plants the required mov.
* config/aarch64/aarch64-protos.h
(aarch64_simd_emit_reg_reg_move): replacement for
aarch64_simd_disambiguate_copy.
* config/aarch64/aarch64-simd.md
(define_split): Use new aarch64_simd_emit_reg_reg_move.
(define_expand "mov<mode>"): less restrictive predicates.
(define_insn "*aarch64_mov<mode>"): Simplify and only allow for LE.
(define_insn "*aarch64_be_movoi"): New. BE only. Plant ldp or
stp.
(define_insn "*aarch64_be_movci"): New. BE only. No instructions.
(define_insn "*aarch64_be_movxi"): New. BE only. No instructions.
(define_split): OI mov. Use new aarch64_simd_emit_reg_reg_move.
(define_split): CI mov. Use new aarch64_simd_emit_reg_reg_move.
On BE
plant movs for reg to/from mem case.
(define_split): XI mov. Use new aarch64_simd_emit_reg_reg_move.
On BE
plant movs for reg to/from mem case.
Alan.
0001-BE-fix-load-stores.-Aarch64-code.patch
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