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Re: c++/9749: [3.2/3.3/3.4 regression] ICE in write_expression on invalid function prototype
- From: bangerth at dealii dot org
- To: gcc-bugs at gcc dot gnu dot org, gcc-prs at gcc dot gnu dot org, liberti at ipnos dot co dot uk, nobody at gcc dot gnu dot org
- Date: 18 Feb 2003 22:14:52 -0000
- Subject: Re: c++/9749: [3.2/3.3/3.4 regression] ICE in write_expression on invalid function prototype
- Reply-to: bangerth at dealii dot org, gcc-bugs at gcc dot gnu dot org, gcc-prs at gcc dot gnu dot org, liberti at ipnos dot co dot uk, nobody at gcc dot gnu dot org, gcc-gnats at gcc dot gnu dot org
Old Synopsis: internal error and segmentation fault of gcc 3.2
New Synopsis: [3.2/3.3/3.4 regression] ICE in write_expression on invalid function prototype
State-Changed-From-To: open->analyzed
State-Changed-By: bangerth
State-Changed-When: Tue Feb 18 22:14:52 2003
State-Changed-Why:
Confirmed. A regression in the C++ front end introduced
between 2.95 and 3.0 that is still there in mainline of
yesterday, as well as (of course) in 3.2.2 and 3.3.
Reduced code is
----------------------
void foo(double a[][2]);
void bar() {
int nx = 2;
void foo(double a[][nx]);
foo(0);
}
-----------------------------
tmp/g> /home/bangerth/bin/gcc-3.4-pre/bin/gcc -c x.cc
x.cc: In function `void bar()':
x.cc:6: internal compiler error: Segmentation fault
Please submit a full bug report,
It ICEs here:
#0 0x4009db33 in strlen () from /lib/libc.so.6
#1 0x08146004 in write_expression (expr=0x0)
at ../../gcc-3.4-CVS/gcc/cp/mangle.c:1985
#2 0x08147016 in write_array_type (type=0x401c2804)
at ../../gcc-3.4-CVS/gcc/cp/mangle.c:2185
#3 0x0814501d in write_type (type=0x401c2804)
at ../../gcc-3.4-CVS/gcc/cp/mangle.c:1405
#4 0x08144f28 in write_type (type=0x401c2804)
at ../../gcc-3.4-CVS/gcc/cp/mangle.c:1400
W.
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=9749