[patch] ARM NEON misassembly

[Paul Brook]

The NEON assembly syntax allows .u and .s to be used as aliases for 
instructions expecting a .i type suffix. The bit normally used to encode 
signed/unsigned is generally used to encode a different instruction.

In some cases gas gets this wrong, and sets the U bit when .u is used.

The attached patch fixes this. It also fixes a bug in tne disassembly of the 
vmovn instruction.

Tested with cross to arm-none-eabi.
Ok?

Paul

2006-09-04  Paul Brook  <paul@codesourcery.com>

	gas/
	* config/tc-arm.c (do_neon_dyadic_if_i): Remove.
	(do_neon_dyadic_if_i_d): Avoid setting U bit.
	(do_neon_mac_maybe_scalar): Ditto.
	(do_neon_dyadic_narrow): Force operand tyep to NT_integer.
	(insns): Remove out of date comments.

	gas/testsuite/
	* gas/arm/neon-cov.s: Test .u and .s aliases for .i suffixes.
	* gas/arm/neon-cov.d: Adjust expected output.

	opcodes/
	* arm-dis.c (neon_opcode): Fix suffix on VMOVN.
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