Fix x86_64-ism in selftest (PR bootstrap/78705)
In r243317 I accidentally introduced an assumption in a selftest
in i386.c that Pmode == DImode. This patch conditionalizes the
overzealous string comparison to avoid breaking the build on
32-bit i386.c targets.
gcc/ChangeLog:
PR bootstrap/78705
* config/i386/i386.c (selftest::ix86_test_dumping_memory_blockage):
Conditionalize the string comparison on Pmode == DImode.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@243332 138bc75d-0d04-0410-961f-82ee72b054a4