[PATCH, ARM] iWMMXT maintenance

[Xinyu Qi <xyqi at marvell dot com>]

Hi,

This patch maintains iWMMXT intrinsics code,
adds WMMX pipeline description
and supports iWMMXT auto-vectorization.
Ran Arm testsuite on arm-linux-gnueabi.

*gcc/config/arm/elf.h: Add option -mwmmxt.
*gcc/config/arm/arm.opt: Same.
*gcc/config/arm/arm.c (arm_option_override): Same.
 (arm_coproc_mem_operand2): Add/fix iWMMXT/iWMMXT2 intrinsic.
 (enum arm_builtins): Same.
 (builtin_description bdesc_2arg): Same.
 (builtin_description bdesc_1arg): Same.
 (arm_init_iwmmxt_builtins): Same.
 (arm_expand_binop_builtin): Same.
 (arm_expand_builtin): Same.
 (arm_output_load_gr): Same.
 (arm_output_iwmmxt_shift_immediate): New function. Same.
 (arm_output_iwmmxt_tinsr): New function. Same.
 (iwmmxt_expand_vector_init): New function. Serving for iWMMXT auto-vectorization.
 (iwmmxt_expand_vector_mov): New function. Same.
*gcc/config/arm/mmintrin.h: Add/fix iWMMXT/iWMMXT2 intrinsic.
*gcc/config/arm/constraints.md: Same.
*gcc/config/arm/predicates.md: Same.
*gcc/config/arm/iterators.md: Same.
*gcc/config/arm/iwmmxt.md: Same.
*gcc/config/arm/iwmmxt2.md: New file. Same.
*gcc/config/arm/arm-protos.h: Add new functions protos.
*gcc/config/arm/marvell-f-iwmmxt.md: New file. 
 Add Marvell WMMX pipeline description.
*gcc/config/arm/arm.md: Fix iWMMXT/iWMMXT2 intrinsic. 
 Add wtype for Marvell WMMX pipeline description. 
*gcc/config/arm/iwmmxt-autovec.md: New file. Support iWMMXT auto-vectorization.
*gcc/config/arm/vec-common.md: Make iWMMXT and NEON co-exist.
*gcc/config/arm/neon.md: Same.

Attachment: iWMMXT_maintenance.patch.gz
Description: iWMMXT_maintenance.patch.gz