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[Bug c++/35730] New: ICE on valid code convert_move expr.c:373
- From: "davids at webmaster dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 28 Mar 2008 08:56:11 -0000
- Subject: [Bug c++/35730] New: ICE on valid code convert_move expr.c:373
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
The following code produces an ICE with GCC-4.3.0 when compiled with g++ and
-O. Removing -O or using gcc removes the ICE.
#include <string.h>
int moo(void)
{
unsigned char msg[] = { 0, 0 };
unsigned char data[2];
memcpy(data, msg, sizeof (msg));
return memcmp(data, msg, sizeof (data)) != 0;
}
Also, changing msg's declaration from "msg[]" to "msg[2]" avoids the ICE.
g++430 test.c -c -O
test.c: In function 'int moo()':
test.c:6: internal compiler error: in convert_move, at expr.c:373
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions
Using gcc430, g++423, or g++412, the code compiles fine. Of the builds I
tested, only g++ 4.3.0 has the problem.
--
Summary: ICE on valid code convert_move expr.c:373
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: davids at webmaster dot com
GCC build triplet: i686-pc-linux-gnu
GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35730