On 07/07/2010 07:54 AM, keshav yadav wrote:
>
> We Build tool chain for ARM architecture(cortex A8) and when we build
> below code we face Build error.
>
>
>
> arm-none-linux-gnueabi-gcc test.c
>
> test.c: In function 'main':
> test.c:13: error: can't find a register in class 'GENERAL_REGS' while
> reloading 'asm'
> test.c:13: error: 'asm' operand has impossible constraints
>
>
> test.c
> int main(void)
> {
> unsigned int u32PosFrac;
> int s32PosInt;
> int s16CoeffOrg[100][100];
> unsigned int u32In3[(1024>>2)+4];
> unsigned int* pu8In4; //pu8In4 = (UInt8*)u32In3;
> unsigned char* u8Out;
> unsigned int u32Step;
> unsigned int u32TgtWidth;
> asm volatile (
> "\n\t"
> :
> : "r" (pu8In4), "r" (s32PosInt), "r"
> (s16CoeffOrg), "r" (u32PosFrac), "r" (u8Out), "r" (u32Step), "r"
> (u32TgtWidth)
> : "r2", "r3", "r4", "r5", "r6", "r7", "r8"
> );
> return 1;
> }
>
>
>
> Will you please let me know the reason and fix for this.
Surely you've run out of registers.
Andrew.
