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PR c++/89705 - ICE with reference binding with conversion function.

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* call.c (reference_binding): If the result of the conversion function
	is a prvalue of non-class type, use the cv-unqualified type.

	* g++.dg/cpp0x/rv-conv2.C: New test.

From-SVN: r269918
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Marek Polacek 2019-03-25 16:10:06 +00:00 committed by Marek Polacek
parent 8d6419db2c
commit a55f758221
4 changed files with 32 additions and 0 deletions
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6
gcc/cp/ChangeLog
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@ -1,3 +1,9 @@
2019-03-25 Marek Polacek <polacek@redhat.com>
PR c++/89705 - ICE with reference binding with conversion function.
* call.c (reference_binding): If the result of the conversion function
is a prvalue of non-class type, use the cv-unqualified type.
2019-03-25 Nathan Sidwell <nathan@acm.org>
* lambda.c (maybe_add_lambda_conv_op): Don't add to comdat group.

3
gcc/cp/call.c
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@ -1853,6 +1853,9 @@ reference_binding (tree rto, tree rfrom, tree expr, bool c_cast_p, int flags,
&& DECL_CONV_FN_P (t->cand->fn))
{
tree ftype = TREE_TYPE (TREE_TYPE (t->cand->fn));
/* A prvalue of non-class type is cv-unqualified. */
if (!TYPE_REF_P (ftype) && !CLASS_TYPE_P (ftype))
ftype = cv_unqualified (ftype);
int sflags = (flags|LOOKUP_NO_CONVERSION)&~LOOKUP_NO_TEMP_BIND;
conversion *new_second
= reference_binding (rto, ftype, NULL_TREE, c_cast_p,

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2019-03-25 Marek Polacek <polacek@redhat.com>
PR c++/89705 - ICE with reference binding with conversion function.
* g++.dg/cpp0x/rv-conv2.C: New test.
2019-03-25 Richard Biener <rguenther@suse.de>
PR tree-optimization/89789

18
gcc/testsuite/g++.dg/cpp0x/rv-conv2.C Normal file
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@ -0,0 +1,18 @@
// PR c++/89705
// { dg-do compile { target c++11 } }
struct W { operator const volatile int(); };
const int& rci = W();
struct X { operator const int(); };
int&& rri = X();
struct Y { operator volatile int(); };
int&& rri2 = Y();
struct Z { operator const volatile int(); };
volatile int&& rri3 = Z();
enum E { A };
struct S { operator const E(); };
E&& rre = S();