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Oddly enough some of the bugs need fixing _before_ removing the support, or else IAMCU would regress. Furthermore a new IAMCU test can be put in place only _after_ removing the support. 1: assorted IAMCU CPU checking fixes 2: drop L1OM/K1OM support from gas 3: add another IAMCU testcase 4: unify CPU flag on/off processing 5: never set i386_cpu_flags' "unused" field 6: don't accept base architectures as extensions Jan