In file included from /pool/buildbot/slaves/sobornost/jdkX/build/src/hotspot/share/opto/regmask.hpp:29:0,
                 from /pool/buildbot/slaves/sobornost/jdkX/build/src/hotspot/share/opto/compile.hpp:42,
                 from /pool/buildbot/slaves/sobornost/jdkX/build/src/hotspot/share/opto/node.hpp:29,
                 from /pool/buildbot/slaves/sobornost/jdkX/build/src/hotspot/share/opto/multnode.hpp:28,
                 from /pool/buildbot/slaves/sobornost/jdkX/build/src/hotspot/share/opto/cfgnode.hpp:28,
                 from /pool/buildbot/slaves/sobornost/jdkX/build/src/hotspot/share/opto/loopnode.hpp:28,
                 from /pool/buildbot/slaves/sobornost/jdkX/build/src/hotspot/share/gc/shared/c2/barrierSetC2.hpp:30,
                 from /pool/buildbot/slaves/sobornost/jdkX/build/src/hotspot/share/gc/shared/c2/barrierSetC2.cpp:26:
/pool/buildbot/slaves/sobornost/jdkX/build/src/hotspot/share/opto/optoreg.hpp:32:39: fatal error: adfiles/adGlobals_x86.hpp: No such file or directory
 #include CPU_HEADER(adfiles/adGlobals)
                                       ^

barrierSetC2.cpp should not be built when compiler2 is disabled.

There are more files to exclude:
 ./src/hotspot/share/gc/shared/c2/modRefBarrierSetC2.cpp
 ./src/hotspot/share/gc/shared/c2/barrierSetC2.cpp
 ./src/hotspot/share/gc/shared/c2/cardTableBarrierSetC2.cpp
 ./src/hotspot/share/gc/g1/c2/g1BarrierSetC2.cpp