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re PR middle-end/35043 (ICE in tree-data-ref because signed_type_for_types returns NULL)

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2008-02-04  Richard Guenther  <rguenther@suse.de>

	PR middle-end/35043
	* gimplify.c (gimplify_init_ctor_eval): Convert array indices
	to TYPE_DOMAINs base type instead of using bitsizetype here.

	* gcc.c-torture/compile/pr35043.c: New testcase.

From-SVN: r132091
This commit is contained in:
Richard Guenther 2008-02-04 13:30:00 +00:00 committed by Richard Biener
parent 0fcedd9c98
commit 1a1640dbb3
4 changed files with 35 additions and 0 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2008-02-04 Richard Guenther <rguenther@suse.de>
PR middle-end/35043
* gimplify.c (gimplify_init_ctor_eval): Convert array indices
to TYPE_DOMAINs base type instead of using bitsizetype here.
2008-02-03 Jason Merrill <jason@redhat.com>
* print-tree.c (print_node) [CONSTRUCTOR]: Print elements.

4
gcc/gimplify.c
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@ -3096,6 +3096,10 @@ gimplify_init_ctor_eval (tree object, VEC(constructor_elt,gc) *elts,
if (array_elt_type)
{
/* Do not use bitsizetype for ARRAY_REF indices. */
if (TYPE_DOMAIN (TREE_TYPE (object)))
purpose = fold_convert (TREE_TYPE (TYPE_DOMAIN (TREE_TYPE (object))),
purpose);
cref = build4 (ARRAY_REF, array_elt_type, unshare_expr (object),
purpose, NULL_TREE, NULL_TREE);
}

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2008-02-04 Richard Guenther <rguenther@suse.de>
PR middle-end/35043
* gcc.c-torture/compile/pr35043.c: New testcase.
2008-02-03 John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
* g++.dg/tree-ssa/ivopts-1.C: Remove xfail for hppa*-*-*.

20
gcc/testsuite/gcc.c-torture/compile/pr35043.c Normal file
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@ -0,0 +1,20 @@
typedef long unsigned int size_t;
typedef struct {
long double dat[2];
} gsl_complex_long_double;
typedef struct {
size_t size;
size_t stride;
long double *data;
} gsl_vector_complex_long_double;
void gsl_vector_complex_long_double_set_zero (gsl_vector_complex_long_double * v)
{
long double * const data = v->data;
const size_t n = v->size;
const size_t stride = v->stride;
const gsl_complex_long_double zero = { { 0.0L,0.0L} } ;
size_t i;
for (i = 0; i < n; i++)
*(gsl_complex_long_double *) (data + 2 * i * stride) = zero;
}