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This patch is part of a series to implement the SIMD32 ACLE intrinsics [1]. The interesting parts implementation-wise involve adding support for setting and reading the Q bit for saturation and the GE-bits for the packed SIMD instructions. That will come in a later patch. For now, this patch implements the other intrinsics that don't need anything special ; just a mapping from arm_acle.h function to builtin to RTL expander+unspec. I've compressed as many as I could with iterators so that we end up needing only 3 new define_insns. Bootstrapped and tested on arm-none-linux-gnueabihf. [1] https://developer.arm.com/docs/101028/latest/data-processing-intrinsics * config/arm/arm.md (arm_<simd32_op>): New define_insn. (arm_<sup>xtb16): Likewise. (arm_usada8): Likewise. * config/arm/arm_acle.h (__qadd8, __qsub8, __shadd8, __shsub8, __uhadd8, __uhsub8, __uqadd8, __uqsub8, __qadd16, __qasx, __qsax, __qsub16, __shadd16, __shasx, __shsax, __shsub16, __uhadd16, __uhasx, __uhsax, __uhsub16, __uqadd16, __uqasx, __uqsax, __uqsub16, __sxtab16, __sxtb16, __uxtab16, __uxtb16): Define. * config/arm/arm_acle_builtins.def: Define builtins for the above. * config/arm/unspecs.md: Define unspecs for the above. * config/arm/iterators.md (SIMD32_NOGE_BINOP): New int_iterator. (USXTB16): Likewise. (simd32_op): New int_attribute. (sup): Handle UNSPEC_SXTB16, UNSPEC_UXTB16. * doc/sourcebuild.exp (arm_simd32_ok): Document. * lib/target-supports.exp (check_effective_target_arm_simd32_ok_nocache): New procedure. (check_effective_target_arm_simd32_ok): Likewise. (add_options_for_arm_simd32): Likewise. * gcc.target/arm/acle/simd32.c: New test. From-SVN: r276146
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