Hi all, This patch implements a number of scalar data processing intrinsics from ACLE that were requested by some users. Some of these have fast single-instruction sequences for Armv6 and later, but even for earlier versions they can still emit an inline sequence or a call to libgcc (and ACLE recommends them being unconditionally available).
Chris Sidebottom wrote most of the patch, I just cleaned it up, wired up some
builtins
and adjusted the tests.
Bootstrapped and tested on arm-none-linux-gnueabihf.
Pushing to trunk.
Thanks,
Kyrill
Co-authored-by: Chris Sidebottom <chris.sidebot...@arm.com>
gcc/ChangeLog:
2023-05-24 Chris Sidebottom <chris.sidebot...@arm.com>
Kyrylo Tkachov <kyrylo.tkac...@arm.com>
* config/arm/arm.md (rbitsi2): Rename to...
(arm_rbit): ... This.
(ctzsi2): Adjust for the above.
(arm_rev16si2): Convert to define_expand.
(arm_rev16si2_alt1): New pattern.
(arm_rev16si2_alt): Rename to...
(*arm_rev16si2_alt2): ... This.
* config/arm/arm_acle.h (__ror, __rorl, __rorll, __clz, __clzl, __clzll,
__cls, __clsl, __clsll, __revsh, __rev, __revl, __revll, __rev16,
__rev16l, __rev16ll, __rbit, __rbitl, __rbitll): Define intrinsics.
* config/arm/arm_acle_builtins.def (rbit, rev16si2): Define builtins.
gcc/testsuite/ChangeLog:
* gcc.target/arm/acle/data-intrinsics-armv6.c: New test.
* gcc.target/arm/acle/data-intrinsics-assembly.c: New test.
* gcc.target/arm/acle/data-intrinsics-rbit.c: New test.
* gcc.target/arm/acle/data-intrinsics.c: New test.
arm-acle.patch
Description: arm-acle.patch
