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re PR c++/87122 (ICE in tsubst_decomp_names)

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PR c++/87122
	* pt.c (tsubst_expr) <case RANGE_FOR_STMT>: If
	processing_template_decl and decl is structured binding decl, call
	cp_finish_decomp.

	* g++.dg/cpp1z/decomp47.C: New test.

From-SVN: r263953
This commit is contained in:
Jakub Jelinek 2018-08-29 14:27:55 +02:00
parent 7a1ce63278
commit f5b219ccc2
5 changed files with 48 additions and 2 deletions
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2
gcc/ChangeLog
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@ -39,7 +39,7 @@
* genpreds.c (write_predicate_subfunction): Also add ATTRIBUTE_UNUSED
to OP parmeter of generated function.
2018-08-28 MCC CS <deswurstes@users.noreply.github.com>
2018-08-28 MCC CS <deswurstes@users.noreply.github.com>
PR tree-optimization/87009
* match.pd: Add boolean optimizations.

7
gcc/cp/ChangeLog
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@ -1,3 +1,10 @@
2018-08-29 Jakub Jelinek <jakub@redhat.com>
PR c++/87122
* pt.c (tsubst_expr) <case RANGE_FOR_STMT>: If
processing_template_decl and decl is structured binding decl, call
cp_finish_decomp.
2018-08-28 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/86546

2
gcc/cp/pt.c
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@ -16832,6 +16832,8 @@ tsubst_expr (tree t, tree args, tsubst_flags_t complain, tree in_decl,
RANGE_FOR_IVDEP (stmt) = RANGE_FOR_IVDEP (t);
RANGE_FOR_UNROLL (stmt) = RANGE_FOR_UNROLL (t);
finish_range_for_decl (stmt, decl, expr);
if (decomp_first && decl != error_mark_node)
cp_finish_decomp (decl, decomp_first, decomp_cnt);
}
else
{

7
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2018-08-29 Jakub Jelinek <jakub@redhat.com>
PR c++/87122
* g++.dg/cpp1z/decomp47.C: New test.
2018-08-29 Matthew Malcomson <matthew.malcomson@arm.com>
* gcc.target/aarch64/simd/vect_su_add_sub.c: Use 32 and 64-bit types
@ -13,7 +18,7 @@
PR tree-optimization/87126
* gcc.dg/tree-ssa/pr87126.c: New testcase.
2018-08-28 MCC CS <deswurstes@users.noreply.github.com>
2018-08-28 MCC CS <deswurstes@users.noreply.github.com>
PR tree-optimization/87009
* gcc.dg/pr87009.c: New test.

32
gcc/testsuite/g++.dg/cpp1z/decomp47.C Normal file
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@ -0,0 +1,32 @@
// PR c++/87122
// { dg-do run { target c++14 } }
// { dg-options "" }
extern "C" void abort ();
struct S { int a, b; };
int c;
template <int N>
void
foo ()
{
S x[4] = { { N, 2 }, { 3, 4 }, { 5, 6 }, { 7, 8 } };
auto f = [](auto & y) {
for (auto & [ u, v ] : y) // { dg-warning "structured bindings only available with" "" { target c++14_down } }
{
if ((u & 1) != 1 || v != u + 1 || u < N || u > 7 || (c & (1 << u))
|| &u != &y[v / 2 - 1].a || &v != &y[v / 2 - 1].b)
abort ();
c |= 1 << u;
}
};
f (x);
}
int
main ()
{
foo<1> ();
if (c != 0xaa)
abort ();
}