Add detection of compiler bug.
Add detection of compiler bug.

Quikling/gpdb,edespino/gpdb,janebeckman/gpdb,xuegang/gpdb,arcivanov/postgres-xl,50wu/gpdb,xinzweb/gpdb,rubikloud/gpdb,janebeckman/gpdb,ovr/postgres-xl,greenplum-db/gpdb,pavanvd/postgres-xl,ahachete/gpdb,snaga/postgres-xl,techdragon/Postgres-XL,tangp3/gpdb,royc1/gpdb,lintzc/gpdb,janebeckman/gpdb,postmind-net/postgres-xl,zaksoup/gpdb,rubikloud/gpdb,lisakowen/gpdb,chrishajas/gpdb,ovr/postgres-xl,Quikling/gpdb,greenplum-db/gpdb,randomtask1155/gpdb,jmcatamney/gpdb,50wu/gpdb,Quikling/gpdb,oberstet/postgres-xl,randomtask1155/gpdb,yazun/postgres-xl,cjcjameson/gpdb,rubikloud/gpdb,Postgres-XL/Postgres-XL,jmcatamney/gpdb,randomtask1155/gpdb,cjcjameson/gpdb,yazun/postgres-xl,lpetrov-pivotal/gpdb,lisakowen/gpdb,lintzc/gpdb,50wu/gpdb,rvs/gpdb,cjcjameson/gpdb,yuanzhao/gpdb,kaknikhil/gpdb,tangp3/gpdb,adam8157/gpdb,Chibin/gpdb,jmcatamney/gpdb,lpetrov-pivotal/gpdb,lisakowen/gpdb,greenplum-db/gpdb,Chibin/gpdb,adam8157/gpdb,foyzur/gpdb,ashwinstar/gpdb,arcivanov/postgres-xl,atris/gpdb,Chibin/gpdb,foyzur/gpdb,atris/gpdb,xinzweb/gpdb,rvs/gpdb,rvs/gpdb,chrishajas/gpdb,foyzur/gpdb,kaknikhil/gpdb,zeroae/postgres-xl,edespino/gpdb,edespino/gpdb,janebeckman/gpdb,CraigHarris/gpdb,yuanzhao/gpdb,Chibin/gpdb,yuanzhao/gpdb,tpostgres-projects/tPostgres,postmind-net/postgres-xl,kaknikhil/gpdb,snaga/postgres-xl,techdragon/Postgres-XL,rvs/gpdb,zaksoup/gpdb,techdragon/Postgres-XL,edespino/gpdb,janebeckman/gpdb,CraigHarris/gpdb,oberstet/postgres-xl,foyzur/gpdb,Quikling/gpdb,yazun/postgres-xl,snaga/postgres-xl,rubikloud/gpdb,xuegang/gpdb,arcivanov/postgres-xl,xinzweb/gpdb,yuanzhao/gpdb,tangp3/gpdb,oberstet/postgres-xl,randomtask1155/gpdb,pavanvd/postgres-xl,edespino/gpdb,rvs/gpdb,Postgres-XL/Postgres-XL,tangp3/gpdb,Quikling/gpdb,CraigHarris/gpdb,zeroae/postgres-xl,ashwinstar/gpdb,randomtask1155/gpdb,0x0FFF/gpdb,atris/gpdb,cjcjameson/gpdb,CraigHarris/gpdb,ovr/postgres-xl,zaksoup/gpdb,kmjungersen/PostgresXL,Quikling/gpdb,ahachete/gpdb,rubikloud/gpdb,Quikling/gpdb,yazun/postgres-xl,xuegang/gpdb,janebeckman/gpdb,arcivanov/postgres-xl,rvs/gpdb,zaksoup/gpdb,yazun/postgres-xl,lintzc/gpdb,arcivanov/postgres-xl,yuanzhao/gpdb,greenplum-db/gpdb,zaksoup/gpdb,chrishajas/gpdb,zaksoup/gpdb,0x0FFF/gpdb,oberstet/postgres-xl,lintzc/gpdb,Quikling/gpdb,rubikloud/gpdb,ahachete/gpdb,CraigHarris/gpdb,lisakowen/gpdb,royc1/gpdb,yuanzhao/gpdb,ahachete/gpdb,tpostgres-projects/tPostgres,kaknikhil/gpdb,0x0FFF/gpdb,kaknikhil/gpdb,snaga/postgres-xl,atris/gpdb,tpostgres-projects/tPostgres,postmind-net/postgres-xl,chrishajas/gpdb,rubikloud/gpdb,cjcjameson/gpdb,ashwinstar/gpdb,edespino/gpdb,0x0FFF/gpdb,tangp3/gpdb,yuanzhao/gpdb,CraigHarris/gpdb,yuanzhao/gpdb,edespino/gpdb,kmjungersen/PostgresXL,50wu/gpdb,edespino/gpdb,50wu/gpdb,jmcatamney/gpdb,Postgres-XL/Postgres-XL,xinzweb/gpdb,foyzur/gpdb,Chibin/gpdb,foyzur/gpdb,cjcjameson/gpdb,ahachete/gpdb,lpetrov-pivotal/gpdb,xuegang/gpdb,kaknikhil/gpdb,cjcjameson/gpdb,xuegang/gpdb,adam8157/gpdb,greenplum-db/gpdb,zeroae/postgres-xl,janebeckman/gpdb,atris/gpdb,atris/gpdb,greenplum-db/gpdb,atris/gpdb,greenplum-db/gpdb,xuegang/gpdb,xinzweb/gpdb,greenplum-db/gpdb,jmcatamney/gpdb,jmcatamney/gpdb,CraigHarris/gpdb,postmind-net/postgres-xl,tangp3/gpdb,zaksoup/gpdb,0x0FFF/gpdb,chrishajas/gpdb,lintzc/gpdb,ovr/postgres-xl,0x0FFF/gpdb,rvs/gpdb,xinzweb/gpdb,50wu/gpdb,50wu/gpdb,Quikling/gpdb,zeroae/postgres-xl,techdragon/Postgres-XL,lisakowen/gpdb,snaga/postgres-xl,adam8157/gpdb,lisakowen/gpdb,royc1/gpdb,cjcjameson/gpdb,jmcatamney/gpdb,rubikloud/gpdb,oberstet/postgres-xl,CraigHarris/gpdb,kaknikhil/gpdb,Postgres-XL/Postgres-XL,xuegang/gpdb,xinzweb/gpdb,lpetrov-pivotal/gpdb,0x0FFF/gpdb,janebeckman/gpdb,ahachete/gpdb,ahachete/gpdb,0x0FFF/gpdb,kaknikhil/gpdb,lpetrov-pivotal/gpdb,royc1/gpdb,techdragon/Postgres-XL,ashwinstar/gpdb,lintzc/gpdb,ashwinstar/gpdb,postmind-net/postgres-xl,tangp3/gpdb,janebeckman/gpdb,Postgres-XL/Postgres-XL,ovr/postgres-xl,adam8157/gpdb,pavanvd/postgres-xl,kmjungersen/PostgresXL,cjcjameson/gpdb,rvs/gpdb,royc1/gpdb,adam8157/gpdb,foyzur/gpdb,kmjungersen/PostgresXL,lintzc/gpdb,janebeckman/gpdb,atris/gpdb,Chibin/gpdb,kmjungersen/PostgresXL,randomtask1155/gpdb,lpetrov-pivotal/gpdb,lpetrov-pivotal/gpdb,chrishajas/gpdb,ashwinstar/gpdb,Chibin/gpdb,randomtask1155/gpdb,arcivanov/postgres-xl,xinzweb/gpdb,tpostgres-projects/tPostgres,50wu/gpdb,zeroae/postgres-xl,chrishajas/gpdb,adam8157/gpdb,kaknikhil/gpdb,pavanvd/postgres-xl,ashwinstar/gpdb,lisakowen/gpdb,Chibin/gpdb,rvs/gpdb,yuanzhao/gpdb,jmcatamney/gpdb,ashwinstar/gpdb,cjcjameson/gpdb,ahachete/gpdb,royc1/gpdb,tpostgres-projects/tPostgres,lpetrov-pivotal/gpdb,Quikling/gpdb,Chibin/gpdb,edespino/gpdb,kaknikhil/gpdb,lintzc/gpdb,randomtask1155/gpdb,tangp3/gpdb,zaksoup/gpdb,lisakowen/gpdb,xuegang/gpdb,royc1/gpdb,chrishajas/gpdb,xuegang/gpdb,royc1/gpdb,lintzc/gpdb,edespino/gpdb,yuanzhao/gpdb,pavanvd/postgres-xl,adam8157/gpdb,foyzur/gpdb,rvs/gpdb,Chibin/gpdb,CraigHarris/gpdb