Question about passing 'make check' - is it necessary to pass all tests before using GCC?

[Stephen Torri]

I was wondering about the necessity to pass all the tests executed as a
part of 'make check'? Gentoo has a emerge flag call maketest which will
run 'make check' on all packages that its applicable when building a new
package. Well I have been trying to run make check on GCC 4.0 20050319
(prerelease) and so far gcc.c-torture/compile/20011119-2.c has failed.

Will I run into problems if I use a build of GCC 3.3, 3.4 or 4.x that
does not pass all the tests?

Stephen