gas/

gas/

2006-06-23  H.J. Lu  <hongjiu.lu@intel.com>

	* config/tc-i386.c (cpu_arch_tune_set): New.
	(cpu_arch_isa): Likewise.
	(i386_align_code): Use xchg %ax,%ax for 2 byte nop. Optimize
	nops with short or long nop sequences based on -march=/.arch
	and -mtune=.
	(set_cpu_arch): Set cpu_arch_isa.  If cpu_arch_tune_set is 0,
	set cpu_arch_tune and cpu_arch_tune_flags.
	(md_parse_option): For -march=, set cpu_arch_isa and set
	cpu_arch_tune and cpu_arch_tune_flags if cpu_arch_tune_set is
	0.  Set cpu_arch_tune_set to 1 for -mtune=.
	(i386_target_format): Don't set cpu_arch_tune.

gas/testsuite/

2006-06-23  H.J. Lu  <hongjiu.lu@intel.com>

	* gas/i386/i386.exp: Run nops-1, nops-1-i386, nops-1-i686,
	nops-1-merom, nops-2, nops-2-i386, nops-2-merom, x86-64-nops-1,
	x86-64-nops-1-k8, x86-64-nops-1-nocona and x86-64-nops-1-merom.

	* gas/i386/nops-1.s: New file.
	* gas/i386/nops-2.s: Likewise.
	* gas/i386/nops-1-i386.d: Likewise.
	* gas/i386/nops-1-i686.d: Likewise.
	* gas/i386/nops-1-merom.d: Likewise.
	* gas/i386/nops-1.d: Likewise.
	* gas/i386/nops-2-i386.d: Likewise.
	* gas/i386/nops-2-merom.d: Likewise.
	* gas/i386/nops-2.d: Likewise.
	* gas/i386/x86-64-nops-1.s: Likewise.
	* gas/i386/x86-64-nops-1-k8.d: Likewise.
	* gas/i386/x86-64-nops-1-merom.d: Likewise.
	* gas/i386/x86-64-nops-1-nocona.d: Likewise.
	* gas/i386/x86-64-nops-1.d: Likewise.

	* gas/i386/sse2.d: Updated to expect xchg %ax,%ax as 2 byte
	nop.