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PR c++/78345 - ICE initializing array from lambda. 

* init.c (build_aggr_init): Check array initializer.
	(build_vec_init): Check the type of a CONSTRUCTOR.

From-SVN: r246244
This commit is contained in:
Jason Merrill 2017-03-17 14:56:22 -04:00 committed by Jason Merrill
parent 3b82a32c3e
commit d1a73b0bae
4 changed files with 29 additions and 1 deletions
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4
gcc/cp/ChangeLog
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@ -1,5 +1,9 @@
2017-03-17 Jason Merrill <jason@redhat.com>
PR c++/78345 - ICE initializing array from lambda.
* init.c (build_aggr_init): Check array initializer.
(build_vec_init): Check the type of a CONSTRUCTOR.
PR c++/80073 - C++17 ICE with virtual base.
* decl.c (xref_basetypes): Also check for indirect vbases.

17
gcc/cp/init.c
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@ -1617,6 +1617,10 @@ build_aggr_init (tree exp, tree init, int flags, tsubst_flags_t complain)
if (init == error_mark_node)
return error_mark_node;
location_t init_loc = (init
? EXPR_LOC_OR_LOC (init, input_location)
: location_of (exp));
TREE_READONLY (exp) = 0;
TREE_THIS_VOLATILE (exp) = 0;
@ -1656,6 +1660,16 @@ build_aggr_init (tree exp, tree init, int flags, tsubst_flags_t complain)
TREE_TYPE (init) = cv_unqualified (itype);
from_array = (itype && same_type_p (TREE_TYPE (init),
TREE_TYPE (exp)));
if (init && !from_array
&& !BRACE_ENCLOSED_INITIALIZER_P (init))
{
if (complain & tf_error)
permerror (init_loc, "array must be initialized "
"with a brace-enclosed initializer");
else
return error_mark_node;
}
}
stmt_expr = build_vec_init (exp, NULL_TREE, init,
@ -3945,6 +3959,9 @@ build_vec_init (tree base, tree maxindex, tree init,
? vec_copy_assign_is_trivial (inner_elt_type, init)
: !TYPE_NEEDS_CONSTRUCTING (type))
&& ((TREE_CODE (init) == CONSTRUCTOR
&& (BRACE_ENCLOSED_INITIALIZER_P (init)
|| (same_type_ignoring_top_level_qualifiers_p
(atype, TREE_TYPE (init))))
/* Don't do this if the CONSTRUCTOR might contain something
that might throw and require us to clean up. */
&& (vec_safe_is_empty (CONSTRUCTOR_ELTS (init))

7
gcc/testsuite/g++.dg/init/array48.C Normal file
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@ -0,0 +1,7 @@
// PR c++/78345
// { dg-do compile { target c++11 } }
struct A
{
const int i;
} a[1] = []{}; // { dg-error "array.*init" }

2
gcc/testsuite/g++.dg/torture/pr70499.C
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@ -1,5 +1,5 @@
// { dg-do compile }
// { dg-additional-options "-w -Wno-psabi" }
// { dg-additional-options "-w -fpermissive -Wno-psabi" }
// { dg-additional-options "-mavx" { target x86_64-*-* i?86-*-* } }
typedef double __m256d __attribute__ ((__vector_size__ (32), __may_alias__));