AArch64 GCC ignores armv8-a+nofp extension

Bug #1189527 reported by Dominic Lemire
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This bug affects 1 person
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Linaro Toolchain Binaries
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Bug Description

When compiling C code with -march=armv8-a+nofp, GCC ignores the "nofp" and generates fp instructions. I think GCC should complain instead.
The assembly generated by gcc starts with ".arch armv8-a", which means fp+simd are enabled even if gcc passes the -march=armv8-a+nofp to the assembler command line.

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