Viewing file:  split-path-1.c (1.39 KB) -rw-r--r--
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/* { dg-do run } */
/* { dg-options "-O2 -fsplit-paths -fdump-tree-split-paths-details --param max-jump-thread-duplication-stmts=20" } */
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#define RGBMAX 255
unsigned char
test()
{
int i, Pels;
int sum = 0;
unsigned char xr, xg, xb;
unsigned char xc, xm, xy, xk = 0;
unsigned char *ReadPtr, *EritePtr;
ReadPtr = ( unsigned char *) malloc (sizeof (unsigned char) * 100);
EritePtr = ( unsigned char *) malloc (sizeof (unsigned char) * 100);
for (i = 0; i < 100;i++)
{
ReadPtr[i] = 100 - i;
}
for (i = 0; i < 24; i++)
{
xr = *ReadPtr++;
xg = *ReadPtr++;
xb = *ReadPtr++;
xc = (unsigned char) (RGBMAX - xr);
xm = (unsigned char) (RGBMAX - xg);
xy = (unsigned char) (RGBMAX - xb);
if (xc < xm)
{
xk = (unsigned char) (xc < xy ? xc : xy);
}
else
{
xk = (unsigned char) (xm < xy ? xm : xy);
}
xc = (unsigned char) (xc - xk);
xm = (unsigned char) (xm - xk);
xy = (unsigned char) (xy - xk);
*EritePtr++ = xc;
*EritePtr++ = xm;
*EritePtr++ = xy;
*EritePtr++ = xk;
sum += *(--EritePtr);
}
return sum;
}
int
main()
{
if (test() != 196)
abort();
return 0;
}
/* { dg-final { scan-tree-dump "Duplicating join block" "split-paths" } } */
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