Richard, Your SYMBOL_REF_FLAGS RTX patches broke bootstrap on AIX.
- David /nasfarm/edelsohn/src/src/libgcc/libgcc2.c: In function '__eprintf': /nasfarm/edelsohn/src/src/libgcc/libgcc2.c:2126:1: internal compiler error: RTL flag check: SYMBOL_REF_FLAGS used with unexpected rtx code 'const' in rs6000_delegitimize_address, at config/rs6000/rs6000.c:6863
