On Wed, 3 Mar 2021 at 14:55, Richard Earnshaw (lists) <richard.earns...@arm.com> wrote: > > Hopefully this change will reduce the number of times Christophe is > needing to tweak the testsuite. >
Thanks! I guess this means we can now do some cleanup in the testsuite? Did you have a quick look at the amount of tests involved? Christophe > -------------- > > Arm processors can support up to two instruction sets. Some early > cores only support the traditional A32 (Arm) instructions, while some > more recent devices only support T32 (Thumb) instructions. > > When configuring the compiler, --with-mode can be used to select the > default instruction set to target if the user has not made an explicit > choice, but this can cause needless problems if the default is not > supported by the requested CPU. > > To fix this this patch adjusts the way that the --with-mode selection > is processed so that it can take into account the selected CPU or > architecture and not create a meaningless combination. > > gcc: > * common/config/arm/arm-common.c: Include configargs.h. > (arm_config_default): New function. > (arm_target_mode): Renamed from arm_target_thumb_only. Handle > processors that do not support Thumb. Take into account the > --with-mode configuration setting for selecting the default. > * config/arm/arm.h (OPTION_DEFAULT_SPECS): Remove entry for 'mode'. > (TARGET_MODE_SPEC_FUNCTIONS): Update for function name change. > --- > gcc/common/config/arm/arm-common.c | 49 ++++++++++++++++++++++++++---- > gcc/config/arm/arm.h | 10 +++--- > 2 files changed, 49 insertions(+), 10 deletions(-) > >
