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can't find a register in class 'GENERAL_REGS' while reloading 'asm'

wcj0626

Hi guys.

   I'm new for ARM programming. Now I'm using Assembler in my C code under Android OS.

  I meet a problem that I don't know how to solve.

when I compile the code , output is :

       /media/51a24454-12a3-411c-850b-46b77bfb99ad/cmpbmp/phone/neon/1-26/jni/neon.cpp: In function 'void GetMD_neon(unsigned char*, int, int, unsigned char*)':

       /media/51a24454-12a3-411c-850b-46b77bfb99ad/cmpbmp/phone/neon/1-26/jni/neon.cpp:271:3: error: can't find a register in class 'GENERAL_REGS' while reloading 'asm'

      /media/51a24454-12a3-411c-850b-46b77bfb99ad/cmpbmp/phone/neon/1-26/jni/neon.cpp:271:3: error: 'asm' operand has impossible constraints

     make: *** [/media/51a24454-12a3-411c-850b-46b77bfb99ad/cmpbmp/phone/neon/1-26/obj/local/armeabi-v7a/objs/main/neon.o] Error 1

My Question is what does "error: can't find a register in class 'GENERAL_REGS' while reloading 'asm'" mean? And What is  the possible reason for this error?

Thank you.

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