[csl-arm] Armv7

[Paul Brook]

The attached patch implements basic Armv7 support.

Tested with cross to arm-none-eabi.
Applied to branches/csl/arm-4_1.

Paul

2006-02-24  Paul Brook  <paul@codesourcery.com>

	* config/arm/arm.c (FL_NOTM, FL_DIV, FL_FOR_ARCH7, FL_FOR_ARCH7A,
	FL_FOR_ARCH7R, FL_FOR_ARCH7M): New defines.
	(arm_arch_notm): New variable.
	(arm_override_options): Check if CPU supports ARM mode.
	Set arm_arch_notm.
	* config/arm/lib1funcs.asm: Recognise V7 architecture variants.
	* config/arm/arm.h (TARGET_DSP_MULTIPLY, TARGET_INT_SIMD): Define.
	(arm_arch_notm): Declare.
	* config/arm/arm-cores.def: Add cortex-a8, cortex-r4 and cortex-m3.
	* config/arm/arm-cores.def: Regenerate.
	* config/arm/t-arm-elf: Add Armv7 Thumb-2 multilib.
	* config/arm/arm.md (mulhisi3, mulhisi3tb, mulhisi3bt, mulhisi3tt,
	mulhisi3addsi, mulhidi3adddi): Depend on TARGET_DSP_MULTIPLY.
	(arm_zero_extendhisi2addsi, arm_zero_extendqisi2addsi,
	arm_extendhisi2addsi, arm_extendqisi2addsi): Depend on
	TARGET_INT_SIMD.
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