[Bug c++/48265] New: [4.6/4.7 Regression] ICE: SIGSEGV (recursion in value_dependent_expression_p) when variable is used uninitialised

[zsojka at seznam dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48265



           Summary: [4.6/4.7 Regression] ICE: SIGSEGV (recursion in

                    value_dependent_expression_p) when variable is used

                    uninitialised

           Product: gcc

           Version: 4.7.0

            Status: UNCONFIRMED

          Severity: normal

          Priority: P3

         Component: c++

        AssignedTo: unassig...@gcc.gnu.org

        ReportedBy: zso...@seznam.cz





Looks similiar to PR46870, but this code is valid:



------- testcase.C -------

template < int > struct S

{

  S () { int i = i; i; };

};

--------------------------



Compiler output:

$ gcc -std=gnu++0x testcase.C

Program received signal SIGSEGV, Segmentation fault.

0x000000000054e883 in value_dependent_expression_p (expression=<value optimized

out>) at /mnt/svn/gcc-trunk/gcc/cp/pt.c:18065

18065     if (DECL_P (expression) && type_dependent_expression_p (expression))

(gdb) bt

#0  0x000000000054e883 in value_dependent_expression_p (expression=<value

optimized out>) at /mnt/svn/gcc-trunk/gcc/cp/pt.c:18065

#1  0x000000000054ea7e in value_dependent_expression_p (expression=<value

optimized out>) at /mnt/svn/gcc-trunk/gcc/cp/pt.c:18233

#2  0x000000000054ea7e in value_dependent_expression_p (expression=<value

optimized out>) at /mnt/svn/gcc-trunk/gcc/cp/pt.c:18233

#3  0x000000000054ea7e in value_dependent_expression_p (expression=<value

optimized out>) at /mnt/svn/gcc-trunk/gcc/cp/pt.c:18233

#4  0x000000000054ea7e in value_dependent_expression_p (expression=<value

optimized out>) at /mnt/svn/gcc-trunk/gcc/cp/pt.c:18233

#5  0x000000000054ea7e in value_dependent_expression_p (expression=<value

optimized out>) at /mnt/svn/gcc-trunk/gcc/cp/pt.c:18233

#6  0x000000000054ea7e in value_dependent_expression_p (expression=<value

optimized out>) at /mnt/svn/gcc-trunk/gcc/cp/pt.c:18233

#7  0x000000000054ea7e in value_dependent_expression_p (expression=<value

optimized out>) at /mnt/svn/gcc-trunk/gcc/cp/pt.c:18233

#8  0x000000000054ea7e in value_dependent_expression_p (expression=<value

optimized out>) at /mnt/svn/gcc-trunk/gcc/cp/pt.c:18233

#9  0x000000000054ea7e in value_dependent_expression_p (expression=<value

optimized out>) at /mnt/svn/gcc-trunk/gcc/cp/pt.c:18233

...