procyberian/gcc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

wide-int.cc (canonize_uhwi): New function.

Browse source 
* wide-int.cc (canonize_uhwi): New function.
	(wi::divmod_internal): Use it.

From-SVN: r233092
This commit is contained in:
Jakub Jelinek 2016-02-02 20:44:16 +01:00 • committed by Jakub Jelinek
parent f3baa1d3ed
commit 321a2b65f8
2 changed files with 21 additions and 15 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
gcc/ChangeLog
View file

@ -1,3 +1,8 @@
2016-02-02 Jakub Jelinek <jakub@redhat.com>
* wide-int.cc (canonize_uhwi): New function.
(wi::divmod_internal): Use it.
2016-02-02 James Norris <jnorris@codesourcery.com
* gimplify.c (omp_notice_variable): Add usage check.

31
gcc/wide-int.cc
View file

@ -118,6 +118,20 @@ canonize (HOST_WIDE_INT *val, unsigned int len, unsigned int precision)
return 1;
}
/* VAL[0] is the unsigned result of an operation. Canonize it by adding
another 0 block if needed, and return number of blocks needed. */
static inline unsigned int
canonize_uhwi (HOST_WIDE_INT *val, unsigned int precision)
{
if (val[0] < 0 && precision > HOST_BITS_PER_WIDE_INT)
{
val[1] = 0;
return 2;
}
return 1;
}
/*
* Conversion routines in and out of wide_int.
*/
@ -1793,25 +1807,12 @@ wi::divmod_internal (HOST_WIDE_INT *quotient, unsigned int *remainder_len,
if (quotient)
{
quotient[0] = o0 / o1;
if (o1 == 1
&& (HOST_WIDE_INT) o0 < 0
&& dividend_prec > HOST_BITS_PER_WIDE_INT)
{
quotient[1] = 0;
quotient_len = 2;
}
quotient_len = canonize_uhwi (quotient, dividend_prec);
}
if (remainder)
{
remainder[0] = o0 % o1;
if ((HOST_WIDE_INT) remainder[0] < 0
&& dividend_prec > HOST_BITS_PER_WIDE_INT)
{
remainder[1] = 0;
*remainder_len = 2;
}
else
*remainder_len = 1;
*remainder_len = canonize_uhwi (remainder, dividend_prec);
}
return quotient_len;
}