http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33190
--- Comment #6 from Steven Bosscher <steven at gcc dot gnu.org> 2012-06-26 22:21:17 UTC --- (In reply to comment #2) > Learned some more. (For reference, this is all from Fr 17 Aug 21:29:16 UTC > 2007 (revision 127595).) > > Not defined by any target, but used in the main sources: I have gone over these again. Some of the macros listed were actually used in libgcc or they are target hooks. A couple have also already been removed in the mean time. The updated list looks like this: IFCVT_EXTRA_FIELDS (doc/tm.texi.in config/frv/frv.c config/frv/frv.h) SYSROOT_HEADERS_SUFFIX_SPEC (cppdefault.c gcc.c doc/tm.texi.in) LARGEST_EXPONENT_IS_NORMAL (defaults.h doc/tm.texi.in config/arm/arm.h ../libgcc/fp-bit.c) SHORT_FRACT_TYPE_SIZE (tree.c defaults.h doc/tm.texi.in config/arm/arm.h config/mips/mips.h) FRACT_TYPE_SIZE (tree.c defaults.h doc/tm.texi.in config/arm/arm.h config/mips/mips.h) LONG_FRACT_TYPE_SIZE (tree.c defaults.h doc/tm.texi.in config/arm/arm.h config/mips/mips.h) LONG_LONG_FRACT_TYPE_SIZE (tree.c defaults.h doc/tm.texi.in config/arm/arm.h config/mips/mips.h) SHORT_ACCUM_TYPE_SIZE (tree.c defaults.h doc/tm.texi.in config/arm/arm.h config/mips/mips.h) ACCUM_TYPE_SIZE (tree.c defaults.h doc/tm.texi.in config/arm/arm.h config/mips/mips.h) LONG_ACCUM_TYPE_SIZE (tree.c defaults.h doc/tm.texi.in config/arm/arm.h config/mips/mips.h) LONG_LONG_ACCUM_TYPE_SIZE (tree.c defaults.h doc/tm.texi.in config/arm/arm.h config/mips/mips.h) LIBGCC2_HAS_DF_MODE (doc/tm.texi.in config/rl78/rl78.h config/rx/rx.h ../libgcc/fixed-bit.h ../libgcc/libgcc2.c ../libgcc/libgcc2.h) SF_SIZE (doc/tm.texi.in ../libgcc/libgcc2.c ../libgcc/libgcc2.h) DF_SIZE (doc/tm.texi.in ../libgcc/libgcc2.c ../libgcc/libgcc2.h) INTMAX_TYPE (defaults.h doc/tm.texi.in c-family/c-common.c fortran/trans- types.c fortran/iso-c-binding.def) UINTMAX_TYPE (defaults.h doc/tm.texi.in c-family/c-common.c) STACK_CHECK_PROTECT (explow.c defaults.h doc/tm.texi.in config/alpha/alpha.c config/i386/i386.c config/ia64/ia64.c config/rs6000/rs6000.c config/sparc/sparc.c config/ia64/hpux.h config/ia64/vms.h config/rs6000/freebsd64.h config/rs6000/linux64.h) STACK_CHECK_MAX_FRAME_SIZE (explow.c function.c reload1.c defaults.h doc/tm.texi.in) STACK_CHECK_FIXED_FRAME_SIZE (reload1.c defaults.h doc/tm.texi.in) STACK_CHECK_MAX_VAR_SIZE (calls.c function.c gimplify.c defaults.h doc/tm.texi.in ada/gcc-interface/decl.c) GEN_ERRNO_RTX (builtins.c doc/tm.texi.in) ASM_OUTPUT_POOL_EPILOGUE (varasm.c doc/tm.texi.in) ASM_OUTPUT_SIZE_DIRECTIVE (defaults.h doc/tm.texi.in config/elfos.h config/openbsd.h config/mips/mips.c config/pa/pa.c config/alpha/elf.h config/bfin/bfin.h config/c6x/c6x.h config/i386/sol2.h config/lm32/lm32.h config/mcore/mcore-elf.h config/rs6000/sysv4.h config/rx/rx.h config/sparc/sol2.h) DEBUG_SYMS_TEXT (dbxout.c xcoffout.h doc/tm.texi.in) DBX_TYPE_DECL_STABS_CODE (dbxout.c xcoffout.h doc/tm.texi.in) DBX_STATIC_CONST_VAR_CODE (dbxout.c xcoffout.h doc/tm.texi.in) DBX_REGPARM_STABS_CODE (dbxout.c xcoffout.h doc/tm.texi.in) DBX_REGPARM_STABS_LETTER (dbxout.c xcoffout.h doc/tm.texi.in) DBX_BLOCKS_FUNCTION_RELATIVE (dbxout.c doc/tm.texi.in config/dbxcoff.h config/dbxelf.h) DBX_OUTPUT_MAIN_SOURCE_FILENAME (dbxout.c xcoffout.h doc/tm.texi.in) NO_DBX_MAIN_SOURCE_DIRECTORY (dbxout.c xcoffout.h doc/tm.texi.in) NO_DBX_GCC_MARKER (dbxout.c xcoffout.h doc/tm.texi.in) DBX_OUTPUT_MAIN_SOURCE_FILE_END (dbxout.c xcoffout.h doc/tm.texi.in) CASE_USE_BIT_TESTS (stmt.c doc/tm.texi.in) VECTOR_STORE_FLAG_VALUE (simplify-rtx.c doc/rtl.texi doc/tm.texi.in) POWI_MAX_MULTS (tree-ssa-math-opts.c doc/tm.texi.in)