Hi All, This patch implements the __yield(), __wfe(), __wfi(), __sev() and __sevl() ACLE (hint) intrinsics for all ARM targets.
The intrinsics specification are published on the Arm website [1]. [1] https://developer.arm.com/docs/ihi0053/latest/arm-c-language-extensions-21-architecture-specification Bootstrapped on arm-none-linux-gnueabihf, regression tested on arm-none-eabi and found no regressions. Added tests are tested using RUNTESTFLAGS as below: RUNTESTFLAGS="--target_board=arm-eabi-aem/-march=armv8-a acle.exp=hint-1.c" RUNTESTFLAGS="--target_board=arm-eabi-aem/-march=armv4t acle.exp=hint-2.c" RUNTESTFLAGS="--target_board=arm-eabi-aem/-march=armv6t2 acle.exp=hint-3.c" Ok for trunk? If ok, could please someone commit the patch on my behalf, I don't have commit rights. Thanks, Srinath gcc/ChangeLog: 2019-05-29 Srinath Parvathaneni <srinath.parvathan...@arm.com> * config/arm/arm-builtins.c (NOP_QUALIFIERS): New qualifier. (arm_expand_builtin_args): New case. * config/arm/arm.md (yield): New pattern name. (wfe): Likewise. (wfi): Likewise. (sev): Likewise. (sevl): Likewise. * config/arm/arm_acle.h (__yield ): New inline function. (__sev): Likewise. (__sevl): Likewise. (__wfi): Likewise. (__wfe): Likewise. * config/arm/arm_acle_builtins.def (VAR1): (yield): New acle builtin. (sev): Likewise. (sevl): Likewise. (wfi): Likewise. (wfe): Likewise. * config/arm/unspecs.md (unspecv): (VUNSPEC_YIELD): New volatile unspec. (VUNSPEC_SEV): Likewise. (VUNSPEC_SEVL): Likewise. (VUNSPEC_WFI): Likewise. gcc/testsuite/ChangeLog: 2019-05-29 Srinath Parvathaneni <srinath.parvathan...@arm.com> * gcc.target/arm/acle/hint-1.c: New test. * gcc.target/arm/acle/hint-2.c: Likewise. * gcc.target/arm/acle/hint-3.c: Likewise.
rb10373.patch
Description: rb10373.patch
