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[/] [openrisc/] [trunk/] [gnu-stable/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.target/] [powerpc/] [ppc-mov-1.c] - Blame information for rev 826

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Line No. Rev Author Line
1 322 jeremybenn
/* { dg-do compile { target { powerpc*-*-* && lp64 } } } */
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/* { dg-options "-O2" } */
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/* { dg-final { scan-assembler-not "fmr \[0-9\]+,\[0-9\]+" } }
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/* Origin:Pete Steinmetz <steinmtz@us.ibm.com> */
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/* PR 16796: Extraneous move.  */
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static const double huge = 1.0e300;
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typedef int int64_t __attribute__ ((__mode__ (__DI__)));
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typedef unsigned int u_int64_t __attribute__ ((__mode__ (__DI__)));
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double __floor(double x)
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{
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  union {
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    double dbl_val;
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    long int long_val;
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  } temp;
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  int64_t i0,j0;
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  u_int64_t i;
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  temp.dbl_val = x;
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  i0 = temp.long_val;
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  j0 = ((i0>>52)&0x7ff)-0x3ff;
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  if(j0<52) {
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    if(j0<0) {
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      if(huge+x>0.0) {
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        if(i0>=0) {i0=0;}
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        else if((i0&0x7fffffffffffffff)!=0)
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        { i0=0xbff0000000000000;}
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      }
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    } else {
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      i = (0x000fffffffffffff)>>j0;
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      if((i0&i)==0) return x;
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      if(huge+x>0.0) {
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        if(i0<0) i0 += (0x0010000000000000)>>j0;
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        i0 &= (~i);
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      }
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    }
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  } else {
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    if (j0==0x400)
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      return x+x;
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    else
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      return x;
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  }
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  temp.long_val = i0;
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  x = temp.dbl_val;
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  return x;
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}
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