[PATCH] aarch64: Relax flags of saturation builtins

[Kyrylo Tkachov via Gcc-patches]

Hi all,

This patch relaxes the flags for the saturating arithmetic builtins to NONE, 
allowing for more optimisation.
Bootstrapped and tested on aarch64-none-linux-gnu.

Pushing to trunk.
Thanks,
Kyrill

gcc/ChangeLog

        * config/aarch64/aarch64-simd-builtins.def (sqshl, uqshl, sqrshl, 
uqrshl,
        sqadd, uqadd, sqsub, uqsub, suqadd, usqadd, sqmovn, uqmovn, sqxtn2,
        uqxtn2, sqabs, sqneg, sqdmlal, sqdmlsl, sqdmlal_lane, sqdmlsl_lane,
        sqdmlal_laneq, sqdmlsl_laneq, sqdmlal_n, sqdmlsl_n, sqdmlal2,
        sqdmlsl2, sqdmlal2_lane, sqdmlsl2_lane, sqdmlal2_laneq, sqdmlsl2_laneq,
        sqdmlal2_n, sqdmlsl2_n, sqdmull, sqdmull_lane, sqdmull_laneq, sqdmull_n,
        sqdmull2, sqdmull2_lane, sqdmull2_laneq, sqdmull2_n, sqdmulh, sqrdmulh,
        sqdmulh_lane, sqdmulh_laneq, sqrdmulh_lane, sqrdmulh_laneq, sqshrun_n,
        sqrshrun_n, sqshrn_n, uqshrn_n, sqrshrn_n, uqrshrn_n, sqshlu_n, sqshl_n,
        uqshl_n, sqrdmlah, sqrdmlsh, sqrdmlah_lane, sqrdmlsh_lane, 
sqrdmlah_laneq,
        sqrdmlsh_laneq, sqmovun): Use NONE flags.

sat-flags.patch
Description: sat-flags.patch