view gcc/testsuite/gcc.dg/tree-ssa/ifc-5.c @ 131:84e7813d76e9

gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents 04ced10e8804
children
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/* { dg-do compile } */
/* { dg-options "-c -O2 -ftree-vectorize -fdump-tree-ifcvt-stats-blocks-details" { target *-*-* } } */

void
dct_unquantize_h263_inter_c (short *block, int n, int qscale, int nCoeffs)
{
  int i, level, qmul, qadd;

  qadd = (qscale - 1) | 1;
  qmul = qscale << 1;

  for (i = 0; i <= nCoeffs; i++)
    {
      level = block[i];
      if (level < 0)
	level = level * qmul - qadd;
      else
	level = level * qmul + qadd;
      block[i] = level;
    }
}

/* { dg-final { scan-tree-dump-times "Applying if-conversion" 1 "ifcvt" } } */

/* We insert into code
   if (LOOP_VECTORIZED (...))
   which is folded by vectorizer.  Both outgoing edges must have probability
   100% so the resulting profile match after folding.  */
/* { dg-final { scan-tree-dump-times "Invalid sum of outgoing probabilities 200.0" 1 "ifcvt" } } */
/* { dg-final { scan-tree-dump-times "Invalid sum of incoming counts" 1 "ifcvt" } } */