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author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Mon, 25 May 2020 18:13:55 +0900
parents 2b5abeee2509
children
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/* PR tree-optimization/94783 */
/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-optimized" } */
/* { dg-final { scan-tree-dump "ABS_EXPR" "optimized" } } */
/* { dg-final { scan-tree-dump-not " >> 31" "optimized" } } */

int
foo (int v)
{
  int mask = v >> (__SIZEOF_INT__ * __CHAR_BIT__ - 1);
  return (v + mask) ^ mask;
}