In current jdk/jdk, lots of tests fail with x86_32 builds.

$ CONF=linux-x86-server-fastdebug make images run-test TEST=tier1

$ grep assert build/linux-x86-server-fastdebug/test-support/jtreg_test_hotspot_jtreg_tier1/jtreg.log | sort | uniq -c
      3 # assert(is_single_cpu() && !is_virtual()) failed: type check
     72 # assert(src->fpu() == 0) failed: input must be on TOS
     23 # assert(src->fpu() == dest->fpu()) failed: currently should be nothing to do