On 01/06/2021 15:05, Martin Liška wrote:
Hello.
The patch fixes https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98636#c20
where
target option restore can be called and arm_fp16_format should be reset
to ARM_FP16_FORMAT_NONE.
It fixes the ICE in the PR.
Can please ARM folks test me the patch on a Arm machine?
Thanks,
Martin
gcc/ChangeLog:
PR target/98636
* config/arm/arm.c (arm_option_reconfigure_globals): Reset
the option if isa_bit_fp16 is not set.
---
gcc/config/arm/arm.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
index 7b37e1b602c..4543f3c6b55 100644
--- a/gcc/config/arm/arm.c
+++ b/gcc/config/arm/arm.c
@@ -3765,6 +3765,8 @@ arm_option_reconfigure_globals (void)
error ("selected fp16 options are incompatible");
arm_fp16_format = ARM_FP16_FORMAT_IEEE;
}
+ else
+ arm_fp16_format = ARM_FP16_FORMAT_NONE;
arm_arch_cde = 0;
arm_arch_cde_coproc = 0;
My initial reaction is 'that can't be right'.
How would -mfp16-format=alternative ever work in this case?
R.
