On Aug 12, 2012, at 1:04 PM, Diego Novillo wrote: > Other than the bootstrap change, the patches make no functional > changes to the compiler. Everything should build as it does now > in trunk.
In my gcc/Makefile, I see: CFLAGS = -g CXXFLAGS = -g -O2 This makes builds in the gcc directory default to -O2, before they were -O0. -O0 aides in debugging for people that develop the compiler. Do you see this? I think: # Remove the -O2: for historical reasons, unless bootstrapping we prefer # optimizations to be activated explicitly by the toplevel. case "$CC" in */prev-gcc/xgcc*) ;; *) CFLAGS=`echo $CFLAGS | sed "s/-O[[s0-9]]* *//" ` ;; esac AC_SUBST(CFLAGS) in configure.ac does this. I think if CXXFLAGS is also so done, we'd gain parity.
