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gcc.target/arm/acle/dsp_arith.c uses DSP intrinsics, which arm_acle.h defines only with __ARM_FEATURE_DSP, so make the test check for that property rather than arm_qbit_ok. However, the existing arm_dsp effective target only checks if DSP features are supported with the current multilib rather than trying -march and -mfloat-abi options. Thus we introduce a similar effective target, arm_dsp_ok and associated dg-add-options. This makes dsp_arith.c unsupported rather than failed when no option combination is suitable, for instance when running the tests with -mcpu=cortex-m3. 2021-03-19 Christophe Lyon <christophe.lyon@linaro.org> gcc/ * doc/sourcebuild.texi (arm_dsp_ok, arm_dsp): Document. gcc/testsuite/ * lib/target-supports.exp (check_effective_target_arm_dsp_ok_nocache) (check_effective_target_arm_dsp_ok, add_options_for_arm_dsp): New. * gcc.target/arm/acle/dsp_arith.c: Use arm_dsp_ok effective target and add arm_dsp options.
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