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Re: target_mem_ref causing bootstrap failure on alphaev67-linux


Richard Henderson wrote:

> $ ./cc1 -quiet -O z.c
> ../../../src-gcc/zlib/inffast.c: In function 'inflate_fast':
> ../../../src-gcc/zlib/inffast.c:70: error: Definition in block 49 does not dominate use in block 47
> for SSA_NAME: D.2870_587 in statement:
> D.2874_592 = D.2870_587 /[fl] 3;
> ../../../src-gcc/zlib/inffast.c:70: internal compiler error: verify_ssa failed.

Same on s390(x)-ibm-linux.  A reduced test case:

int test (unsigned char *dst, unsigned len)
{
  while (len > 2)
    {
      *++dst = 0;
      len -= 3;
    }

  return len;
}

Bye,
Ulrich

-- 
  Dr. Ulrich Weigand
  Linux on zSeries Development
  Ulrich.Weigand@de.ibm.com


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