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This is a partial revert of r11-8168. The overall purpose of the commit is retained (to fix a bogus warning when -mfpu=<not-auto> is used in combination with eg -mcpu=neoverse-v1), but it removes the hunk that changed the subsequent feature bits for features of a simd/fp unit that cannot be described by -mfpu. While I still think that is the correct direction of travel, it's somewhat disruptive and not appropriate for late stage4. I'll revisit for gcc-12. gcc: PR target/100067 * config/arm/arm.c (arm_configure_build_target): Do not strip extended FPU/SIMD feature bits from the target ISA when -mfpu is specified (partial revert of r11-8168).
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