[Bug c++/46156] New: ICE: in tsubst_copy, at cp/pt.c:11370 with -frounding-math

[marc.glisse at normalesup dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46156

           Summary: ICE: in tsubst_copy, at cp/pt.c:11370 with
                    -frounding-math
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: marc.gli...@normalesup.org


This problem appeared around the same time as the fix for PR c++/46129, so they
may be related. When I compile this code with -frounding-math:

template < typename K >
void
linear_least_squares_fitting_2()
{
  double temp[4] = {1/3.0, 0.25, 0.25,  1/3.0};
}

int main()
{
  linear_least_squares_fitting_2<int>();
}


I get the error:

bug.cpp: In function ‘void linear_least_squares_fitting_2() [with K = int]’:
bug.cpp:10:39:   instantiated from here
bug.cpp:5:46: internal compiler error: in tsubst_copy, at cp/pt.c:11370
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