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PR c++/83588 - struct with two flexible arrays causes an internal compiler error 

gcc/cp/ChangeLog:

	PR c++/83588
	* class.c (find_flexarrays): Make a record of multiple flexible array
	members.

gcc/testsuite/ChangeLog:

	PR c++/83588
	* g++.dg/ext/flexary28.C: New test.

From-SVN: r256721
This commit is contained in:
Martin Sebor 2018-01-16 03:02:34 +00:00 committed by Martin Sebor
parent 75a3c61ae4
commit 66a366a05a
4 changed files with 62 additions and 2 deletions
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6
gcc/cp/ChangeLog
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@ -1,3 +1,9 @@
2018-01-15 Martin Sebor <msebor@redhat.com>
PR c++/83588
* class.c (find_flexarrays): Make a record of multiple flexible array
members.
2018-01-12 Jason Merrill <jason@redhat.com>
PR c++/83186 - ICE with static_cast of list-initialized temporary.

7
gcc/cp/class.c
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@ -6566,14 +6566,17 @@ find_flexarrays (tree t, flexmems_t *fmem, bool base_p,
/* Flexible array members have no upper bound. */
if (fmem->array)
{
/* Replace the zero-length array if it's been stored and
reset the after pointer. */
if (TYPE_DOMAIN (TREE_TYPE (fmem->array)))
{
/* Replace the zero-length array if it's been stored and
reset the after pointer. */
fmem->after[bool (pun)] = NULL_TREE;
fmem->array = fld;
fmem->enclosing = pstr;
}
else if (!fmem->after[bool (pun)])
/* Make a record of another flexible array member. */
fmem->after[bool (pun)] = fld;
}
else
{

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2018-01-15 Martin Sebor <msebor@redhat.com>
PR c++/83588
* g++.dg/ext/flexary28.C: New test.
2018-01-15 Louis Krupp <louis.krupp@zoho.com>
PR fortran/82257

46
gcc/testsuite/g++.dg/ext/flexary28.C Normal file
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@ -0,0 +1,46 @@
// PR c++/83588 - struct with two flexible arrays causes an internal compiler
// error
// { dg-do compile }
// { dg-options "-Wno-pedantic" }
struct A {
int i;
int a[]; // { dg-error "flexible array member .A::a. not at end of .struct A." }
int b[];
};
struct B {
int i;
int a[]; // { dg-error "flexible array member .B::a. not at end of .struct B." }
int j;
int b[][2];
};
struct C {
int i;
struct {
int a[]; // { dg-error "flexible array member .C::<unnamed struct>::a. not at end of .struct C." }
};
int b[];
};
struct D {
int i;
struct {
int a[]; // { dg-error "flexible array member .D::<unnamed struct>::a. not at end of .struct D." }
} b[];
int c[];
};
struct E {
int i;
int a[0];
int b[]; // { dg-error "flexible array member .E::b. not at end of .struct E." }
int d[];
};
struct F {
int i;
int a[]; // { dg-error "flexible array member .F::a. not at end of .struct F." }
int b[], c[], d[];
};