On 23/11/18 17:01, Sam Tebbs wrote:
Hi all,
Currently on AArch32, invoking with -march=armv8.2-a+dotprod -mfpu=neon
incorrectly enables armv7 dotproduct. This patch restricts dotproduct to armv8
to correct the issue.
When using a float ABI different from that of the host platform, including
/usr/include/gnu/stubs.h errors due to a non-existent stubs-soft.h file, so
an inclusion of a standard header file is required to compile successfully and
find the correct float ABI to select in
check_effective_target_arm_v8_2a_dotprod_neon_ok_nocache.
Bootstrapped and regression tested on arm-none-linux-gnueabihf with no
regressions.
OK for trunk?
Ok. I'd hope it's a niche usecase as the -mfpu=auto is the recommended way
these days.
Thanks,
Kyrill
gcc/ChangeLog:
2018-11-23 Sam Tebbs<sam.te...@arm.com>
* config/arm/arm.h (TARGET_DOTPROD): Add TARGET_VFP5 constraint.
gcc/testsuite/ChangeLog:
2018-11-23 Sam Tebbs<sam.te...@arm.com>
* gcc.target/arm/neon-dotprod-restriction.c: New file.
* lib/target-supports.exp
(check_effective_target_arm_v8_2a_dotprod_neon_ok_nocache):
Include stdint.h.
