File: pr95903.c

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gcc-arm-none-eabi 15%3A12.2.rel1-1
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/* PR middle-end/95903 */
/* { dg-do compile { target lp64 } } */
/* { dg-options "-O2 -fwrapv -fdump-tree-optimized" } */
/* Verify that for -fwrapv the + 1 addition is performed in the parameter's
   type before sign extending it.  */
/* { dg-final { scan-tree-dump-times "off_\[0-9]+\\\(D\\\) \\+ 1" 2 "optimized" } } */

char
foo (const char *ptr, int off)
{
  off += 1;
  return ptr[off];
}

char
bar (const char *ptr, int off)
{
  return ptr[off + 1];
}