[Patch, AArch64] Add support for alias instructions SXTL, SXTL2, UXTL and UXTL2

[Yufeng Zhang]

Hi,

This patch adds support in GAS and opcodes for SXTL, SXTL2, UXTL and 
UXTL2 as the preferred aliases for SSHLL, SSHLL2, USHLL and USHLL2 with 
an immediate shift of #0.

OK for the trunk and the 2.23 branch?

Thanks,
Yufeng


include/opcode/

2013-01-30  Yufeng Zhang  <yufeng.zhang@arm.com>

	* aarch64.h (aarch64_op): Add OP_SXTL, OP_SXTL2, OP_UXTL and OP_UXTL2.

opcodes/

2013-01-30  Yufeng Zhang  <yufeng.zhang@arm.com>

	* aarch64-tbl.h (aarch64_opcode_table): Flag sshll, sshll2, ushll and
	ushll2 with F_HAS_ALIAS.  Add entries for sxtl, sxtl2, uxtl and uxtl2.
	* aarch64-asm.c (convert_xtl_to_shll): New function.
	(convert_to_real): Handle OP_SXTL, OP_SXTL2, OP_UXTL and OP_UXTL2 by
	calling convert_xtl_to_shll.
	* aarch64-dis.c (convert_shll_to_xtl): New function.
	(convert_to_alias): Handle OP_SXTL, OP_SXTL2, OP_UXTL and OP_UXTL2 by
	calling convert_shll_to_xtl.
	* aarch64-asm-2.c: Re-generate.
	* aarch64-dis-2.c: Re-generate.
	* aarch64-opc-2.c: Re-generate.

gas/testsuite/

2013-01-30  Yufeng Zhang  <yufeng.zhang@arm.com>

	* gas/aarch64/alias.s: Add new tests.
	* gas/aarch64/alias.d: Update.
	* gas/aarch64/no-aliases.d: Update.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: aarch64-xtl.patch
Type: text/x-patch
Size: 8273 bytes
Desc: not available
URL: <https://sourceware.org/pipermail/binutils/attachments/20130129/68b1f8a2/attachment.bin>