As seen in PR98144, building insn-extract.o with rtl checking takes some memory, and it doesn't work on 32bit architectures at all (PR97314). Richard suggested on irc to disable rtl checking for this auto-generated file, like it's already done for genconditions.c. Patching it like done for genconditons.c. Ok for the trunk?
Matthias --- a/gcc/genextract.c +++ b/gcc/genextract.c @@ -365,6 +365,8 @@ print_header (void) #define IN_TARGET_CODE 1\n\ #include \"config.h\"\n\ #include \"system.h\"\n\ +#undef ENABLE_RTL_CHECKING\n\ +#undef ENABLE_RTL_FLAG_CHECKING\n\ #include \"coretypes.h\"\n\ #include \"tm.h\"\n\ #include \"rtl.h\"\n\