Warning : C12056 SP debug info incorrect because of optimization or inline assembler

rayhall — Wed, 07 Dec 2016 05:48:32 GMT

I am getting the C12056 warning for the following function.The fuction works perfectly. Can someone explain what is wrong ?

int16_t Interpolate3D(uint16_t *table, uint8_t axisXCnt, uint8_t axisYCnt, uint16_t xAxis, uint16_t yAxis)
{
   uint8_t x, y;
   int16_t Q11, Q12, Q21, Q22;
   int32_t val1, val2;
   int32_t interpVal;
   float ratioX, ratioY;

   x = 0;
   y = 0;
   Q11 = 0;   // x-axis minimum interpolation value
   Q12 = 0;   // x-axis maximum interpolation value
   Q21 = 0;
   Q22 = 0;

   if (xAxis <= table[0] || xAxis >= table[axisXCnt - 1])
   {
       if (xAxis <= table[0])   // less than minimum x value in table?
       {
           Q11 = table[0];
           Q12 = table[1];
           xAxis = Q11;   // adjust to minimum value
           x = 0;           // AG just to make sure
       }
       if (xAxis >= table[axisXCnt - 1])   // greater than maximum x value in table?
       {
           Q11 = table[axisXCnt - 2];
           Q12 = table[axisXCnt - 1];
           xAxis = Q12;       // adjust to maximum value
           x = axisXCnt - 2;   // AG addition, index to last but one element of x axis
       }
   }
   else   // locate table entries that surround xAxis value
   {
       for (x = 0; x < axisXCnt; x++)
       {
           if (table[x] <= xAxis && xAxis < table[x + 1])
           {
               Q11 = table[x];
               Q12 = table[x + 1];
               break;
           }
       }
   }
   ratioX = (float)(xAxis - Q11) / (float)(Q12 - Q11);

   if ((yAxis <= table[axisXCnt]) || (yAxis >= table[(axisXCnt << 1) - 1]))
   {
       if (yAxis <= table[axisXCnt])
       {
           Q11 = table[axisXCnt];
           Q12 = table[axisXCnt + 1];
           yAxis = Q11;
           y = 0;       // AG just to make sure
       }
       else
       {
           Q11 = table[(axisXCnt << 1) - 2];
           Q12 = table[(axisXCnt << 1) - 1];
           yAxis = Q12;
           y = axisYCnt - 2;
       }
   }
   else
   {
       for (y = 0; y < axisYCnt; y++)   // AG comment - should be axisYCnt-1 but probably works as-is
       {
           if ((table[y + axisXCnt] <= yAxis) && (yAxis <= table[y + axisXCnt + 1]))
           {
               Q11 = table[y + axisXCnt];
               Q12 = table[y + axisXCnt + 1];
               break;
           }
       }
   }
   y += 2;       // offset so that index points to correct real data row

   ratioY = (float)(yAxis - Q11) / (float)(Q12 - Q11);
   Q11 = table[x + (axisXCnt * y)];
   Q12 = table[x + (axisXCnt * y) + 1];

Q21 = table[x + (axisXCnt * (y + 1))];
Q22 = table[x + (axisXCnt * (y + 1)) + 1];

val1 = Q11 + (ratioX * (Q12 - Q11));
val2 = Q21 + (ratioX * (Q22 - Q21));

interpVal = val1 + (ratioY * (val2 - val1));

return (int16_t)interpVal;
}

Ray.

Re: Warning : C12056 SP debug info incorrect because of optimization or inline assembler

ZhangJennie — Thu, 08 Dec 2016 06:58:56 GMT

Hi Ray.

I just attached document about C12056, please check if you can sort out your problem with it.

if can't please provide your demo project, we need reproduce it and will work on it directly.

Have a great day,
Jennie Zhang

-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

CodeWarrior for MCU中的主题 Re: Warning : C12056 SP debug info incorrect because of optimization or inline assembler

Warning : C12056 SP debug info incorrect because of optimization or inline assembler

Re: Warning : C12056 SP debug info incorrect because of optimization or inline assembler