re PR middle-end/18785 (isdigit builtin function fails with EBCDIC character sets)
PR 18785
libcpp:
* charset.c (LAST_POSSIBLY_BASIC_SOURCE_CHAR): New helper macro.
(cpp_host_to_exec_charset): New function.
* include/cpplib.h: Declare cpp_host_to_exec_charset.
gcc:
* langhooks.h (struct lang_hooks): Add to_target_charset.
* langhooks.c (lhd_to_target_charset): New function.
* langhooks-def.h: Declare lhd_to_target_charset.
(LANG_HOOKS_TO_TARGET_CHARSET): New macro.
(LANG_HOOKS_INITIALIZER): Update.
* c-common.c (c_common_to_target_charset): New function.
* c-common.h: Declare it.
* c-objc-common.h (LANG_HOOKS_TO_TARGET_CHARSET): Set to
c_common_to_target_charset.
* defaults.c (TARGET_BELL, TARGET_BS, TARGET_CR, TARGET_DIGIT0)
(TARGET_ESC, TARGET_FF, TARGET_NEWLINE, TARGET_TAB, TARGET_VT):
Delete definitions.
* system.h: Poison them.
* doc/tm.texi: Don't discuss them.
* builtins.c (fold_builtin_isdigit): Use lang_hooks.to_target_charset.
* c-pretty-print.c (pp_c_integer_constant): Don't use pp_c_char.
(pp_c_char): Do not attempt to generate letter escapes for
newline, tab, etc.
* config/arm/arm.c (output_ascii_pseudo_op): Likewise.
* config/mips/mips.c (mips_output_ascii): Likewise.
gcc/cp:
* cp-objcp-common.h (LANG_HOOKS_TO_TARGET_CHARSET): Set to
c_common_to_target_charset. Delete bogus comment.
gcc/testsuite:
* gcc.dg/charset/builtin1.c: New test.
From-SVN: r95304
c5ff069dc4