re PR c++/40566 (rejects promoted throw)

PR c++/40566
	* convert.c (convert_to_integer) <case COND_EXPR>: Don't convert
	to type arguments that have void type.

	* g++.dg/parse/cond5.C: New test.

From-SVN: r149121
This commit is contained in:
Jakub Jelinek 2009-07-01 00:04:36 +02:00 committed by Jakub Jelinek
parent 085e05ac8f
commit 5ccde5a06a
4 changed files with 28 additions and 3 deletions

View file

@ -1,5 +1,9 @@
2009-06-30 Jakub Jelinek <jakub@redhat.com>
PR c++/40566
* convert.c (convert_to_integer) <case COND_EXPR>: Don't convert
to type arguments that have void type.
PR debug/40573
* dwarf2out.c (gen_formal_parameter_die): Call
equate_decl_number_to_die if node is different from origin.

View file

@ -772,10 +772,16 @@ convert_to_integer (tree type, tree expr)
case COND_EXPR:
/* It is sometimes worthwhile to push the narrowing down through
the conditional and never loses. */
the conditional and never loses. A COND_EXPR may have a throw
as one operand, which then has void type. Just leave void
operands as they are. */
return fold_build3 (COND_EXPR, type, TREE_OPERAND (expr, 0),
convert (type, TREE_OPERAND (expr, 1)),
convert (type, TREE_OPERAND (expr, 2)));
VOID_TYPE_P (TREE_TYPE (TREE_OPERAND (expr, 1)))
? TREE_OPERAND (expr, 1)
: convert (type, TREE_OPERAND (expr, 1)),
VOID_TYPE_P (TREE_TYPE (TREE_OPERAND (expr, 2)))
? TREE_OPERAND (expr, 2)
: convert (type, TREE_OPERAND (expr, 2)));
default:
break;

View file

@ -1,3 +1,8 @@
2009-06-30 Jakub Jelinek <jakub@redhat.com>
PR c++/40566
* g++.dg/parse/cond5.C: New test.
2009-06-30 Nathan Froyd <froydnj@codesourcery.com>
* gcc.dg/tree-ssa/gen-vect-25.c (n): New variable.

View file

@ -0,0 +1,10 @@
// PR c++/40566
void
f (int x, int y)
{
int c = x ? 23 : throw "bla";
short d = y ? throw "bla" : 23;
char e = x ? 23 : throw "bla";
long f = x ? 23 : throw "bla";
}