hc.hpp contains many kernel functions which cannot be used in kernel

[misos1]

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For example these:

extern "C" unsigned int __bitalign_b32(unsigned int src0, unsigned int src1, unsigned int src2) __HC__;
extern "C" unsigned int __bytealign_b32(unsigned int src0, unsigned int src1, unsigned int src2) __HC__;
extern "C" unsigned int __bitmask_b32(unsigned int src0, unsigned int src1) __HC__;
extern "C" int __bitextract_s32(int src0, unsigned int src1, unsigned int src2) __HC__;
extern "C" unsigned int __unpacklo_u8x4(unsigned int src0, unsigned int src1) __HC__;

Probably almost all which are only defined without body.

They produce compilation errors error: relocation R_AMDGPU_REL32_HI cannot be used against symbol __bitalign_b32; recompile with -fPIC".