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omp-low.c (expand_omp_for_generic): If iter_type has different precision than type and type is a pointer type...

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* omp-low.c (expand_omp_for_generic): If iter_type has different
	precision than type and type is a pointer type, cast n1 and n2
	first to an integer type with the same precision as pointers
	and only afterwards to iter_type.

Co-Authored-By: Jakub Jelinek <jakub@redhat.com>

From-SVN: r141563
This commit is contained in:
Steve Ellcey 2008-11-03 21:47:44 +00:00 committed by Jakub Jelinek
parent f9bd1a8966
commit c6ff44935c
2 changed files with 22 additions and 2 deletions
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8
gcc/ChangeLog
View File

@ -1,3 +1,11 @@
2008-11-03 Steve Ellcey <sje@cup.hp.com>
Jakub Jelinek <jakub@redhat.com>
* omp-low.c (expand_omp_for_generic): If iter_type has different
precision than type and type is a pointer type, cast n1 and n2
first to an integer type with the same precision as pointers
and only afterwards to iter_type.
2008-11-03 Richard Sandiford <rdsandiford@googlemail.com>
* config/arm/arm.md (UNSPEC_PIC_BASE): Update documentation.

16
gcc/omp-low.c
View File

@ -3681,8 +3681,20 @@ expand_omp_for_generic (struct omp_region *region,
t4 = build_fold_addr_expr (iend0);
t3 = build_fold_addr_expr (istart0);
t2 = fold_convert (fd->iter_type, fd->loop.step);
t1 = fold_convert (fd->iter_type, fd->loop.n2);
t0 = fold_convert (fd->iter_type, fd->loop.n1);
if (POINTER_TYPE_P (type)
&& TYPE_PRECISION (type) != TYPE_PRECISION (fd->iter_type))
{
/* Avoid casting pointers to integer of a different size. */
tree itype
= lang_hooks.types.type_for_size (TYPE_PRECISION (type), 0);
t1 = fold_convert (fd->iter_type, fold_convert (itype, fd->loop.n2));
t0 = fold_convert (fd->iter_type, fold_convert (itype, fd->loop.n1));
}
else
{
t1 = fold_convert (fd->iter_type, fd->loop.n2);
t0 = fold_convert (fd->iter_type, fd->loop.n1);
}
if (bias)
{
t1 = fold_build2 (PLUS_EXPR, fd->iter_type, t1, bias);