[Bug c/30762] New: inlining destroys type information

["aldot at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

$ gcc-4.2.orig-HEAD -Os -c double-int.i tree-ssa-loop-niter.i -o libbackend.o
-combine 
tree-ssa-loop-niter.i: In function 'derive_constant_upper_bound':
tree-ssa-loop-niter.i:28: error: incompatible type for argument 1 of
'double_int_negative_p'


where gcc-4.2.orig-HEAD is a pristine checkout from:
gcc version 4.2.0 20070204 (prerelease)


Turning off inlining via -fno-inline makes it work again.


-- 
           Summary: inlining destroys type information
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Keywords: rejects-valid, diagnostic, build
          Severity: major
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: aldot at gcc dot gnu dot org
 GCC build triplet: i686-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30762