[PATCH][committed] aarch64: Simplify SHRN, RSHRN expanders and patterns

[Kyrylo Tkachov via Gcc-patches]

Hi all,

Now that we've got the <vczle><vczbe> annotations we can get rid of explicit
!BYTES_BIG_ENDIAN and BYTES_BIG_ENDIAN patterns for the narrowing shift 
instructions.
This allows us to clean up the expanders as well.

Bootstrapped and tested on aarch64-none-linux-gnu and aarch64_be-none-elf.
Pushing to trunk.
Thanks,
Kyrill

gcc/ChangeLog:

        * config/aarch64/aarch64-simd.md (aarch64_shrn<mode>_insn_le): Delete.
        (aarch64_shrn<mode>_insn_be): Delete.
        (*aarch64_<srn_op>shrn<mode>_vect):  Rename to...
        (*aarch64_<srn_op>shrn<mode><vczle><vczbe>): ... This.
        (aarch64_shrn<mode>): Remove reference to the above deleted patterns.
        (aarch64_rshrn<mode>_insn_le): Delete.
        (aarch64_rshrn<mode>_insn_be): Delete.
        (aarch64_rshrn<mode><vczle><vczbe>_insn): New define_insn.
        (aarch64_rshrn<mode>): Remove references to the above deleted patterns.

gcc/testsuite/ChangeLog:

        * gcc.target/aarch64/simd/pr99195_5.c: Add testing for shrn_n, rshrn_n
        intrinsics.

shrn-clean.patch
Description: shrn-clean.patch