This patch replaces the target macros SF_SIZE, DF_SIZE, XF_SIZE and TF_SIZE, used to tell libgcc the number of bits in the mantissas of floating-point modes, with __LIBGCC_SF_MANT_DIG__ etc. macros defined if -fbuilding-libgcc for all floating-point modes. Various libgcc logic to determine default values of the macros based on other target macros such as LIBGCC2_LONG_DOUBLE_TYPE_SIZE can thus be removed.
Bootstrapped with no regressions on x86_64-unknown-linux-gnu. OK to commit? gcc: 2014-09-05 Joseph Myers <jos...@codesourcery.com> * config/i386/cygming.h (TF_SIZE): Remove. * config/i386/darwin.h (TF_SIZE): Remove. * config/i386/dragonfly.h (TF_SIZE): Remove. * config/i386/freebsd.h (TF_SIZE): Remove. * config/i386/gnu-user-common.h (TF_SIZE): Remove. * config/i386/openbsdelf.h (TF_SIZE): Remove. * config/i386/sol2.h (TF_SIZE): Remove. * config/ia64/hpux.h (XF_SIZE, TF_SIZE): Remove. * config/ia64/linux.h (TF_SIZE): Remove. * doc/tm.texi.in (SF_SIZE, DF_SIZE, XF_SIZE, TF_SIZE): Remove. * doc/tm.texi: Regenerate. * system.h (SF_SIZE, DF_SIZE, XF_SIZE, TF_SIZE): Poison. gcc/c-family: 2014-09-05 Joseph Myers <jos...@codesourcery.com> * c-cppbuiltin.c (c_cpp_builtins): Define macros for mantissa digits of floating-point modes if -fbuilding-libgcc. libgcc: 2014-09-05 Joseph Myers <jos...@codesourcery.com> * libgcc2.c (SF_SIZE): Change all uses to __LIBGCC_SF_MANT_DIG__. (DF_SIZE): Change all uses to __LIBGCC_DF_MANT_DIG__. (XF_SIZE): Change all uses to __LIBGCC_XF_MANT_DIG__. (TF_SIZE): Change all uses to __LIBGCC_TF_MANT_DIG__. * libgcc2.h (SF_SIZE): Change to __LIBGCC_SF_MANT_DIG__. Give error if not defined and LIBGCC2_HAS_SF_MODE is defined. (DF_SIZE): Change to __LIBGCC_DF_MANT_DIG__. Give error if not defined and LIBGCC2_HAS_DF_MODE is defined. (XF_SIZE): Change to __LIBGCC_XF_MANT_DIG__. Give error if not defined and LIBGCC2_HAS_XF_MODE is defined. (TF_SIZE): Change to __LIBGCC_TF_MANT_DIG__. Give error if not defined and LIBGCC2_HAS_TF_MODE is defined. Index: gcc/c-family/c-cppbuiltin.c =================================================================== --- gcc/c-family/c-cppbuiltin.c (revision 214954) +++ gcc/c-family/c-cppbuiltin.c (working copy) @@ -944,6 +944,20 @@ c_cpp_builtins (cpp_reader *pfile) /* For libgcc-internal use only. */ if (flag_building_libgcc) { + /* Properties of floating-point modes for libgcc2.c. */ + for (enum machine_mode mode = GET_CLASS_NARROWEST_MODE (MODE_FLOAT); + mode != VOIDmode; + mode = GET_MODE_WIDER_MODE (mode)) + { + const char *name = GET_MODE_NAME (mode); + char *macro_name + = (char *) alloca (strlen (name) + + sizeof ("__LIBGCC__MANT_DIG__")); + sprintf (macro_name, "__LIBGCC_%s_MANT_DIG__", name); + builtin_define_with_int_value (macro_name, + REAL_MODE_FORMAT (mode)->p); + } + /* For libgcc crtstuff.c and libgcc2.c. */ builtin_define_with_int_value ("__LIBGCC_EH_TABLES_CAN_BE_READ_ONLY__", EH_TABLES_CAN_BE_READ_ONLY); Index: gcc/config/i386/cygming.h =================================================================== --- gcc/config/i386/cygming.h (revision 214954) +++ gcc/config/i386/cygming.h (working copy) @@ -343,7 +343,6 @@ do { \ #undef LIBGCC2_HAS_TF_MODE #define LIBGCC2_HAS_TF_MODE 1 #define LIBGCC2_TF_CEXT q -#define TF_SIZE 113 /* Output function declarations at the end of the file. */ #undef TARGET_ASM_FILE_END Index: gcc/config/i386/darwin.h =================================================================== --- gcc/config/i386/darwin.h (revision 214954) +++ gcc/config/i386/darwin.h (working copy) @@ -157,7 +157,6 @@ extern int darwin_emit_branch_islands; #undef LIBGCC2_HAS_TF_MODE #define LIBGCC2_HAS_TF_MODE 1 #define LIBGCC2_TF_CEXT q -#define TF_SIZE 113 #undef TARGET_ASM_FILE_END #define TARGET_ASM_FILE_END darwin_file_end Index: gcc/config/i386/dragonfly.h =================================================================== --- gcc/config/i386/dragonfly.h (revision 214954) +++ gcc/config/i386/dragonfly.h (working copy) @@ -93,7 +93,6 @@ see the files COPYING3 and COPYING.RUNTIME respect #undef LIBGCC2_HAS_TF_MODE #define LIBGCC2_HAS_TF_MODE 1 #define LIBGCC2_TF_CEXT q -#define TF_SIZE 113 /* Static stack checking is supported by means of probes. */ #define STACK_CHECK_STATIC_BUILTIN 1 Index: gcc/config/i386/freebsd.h =================================================================== --- gcc/config/i386/freebsd.h (revision 214954) +++ gcc/config/i386/freebsd.h (working copy) @@ -135,7 +135,6 @@ along with GCC; see the file COPYING3. If not see #undef LIBGCC2_HAS_TF_MODE #define LIBGCC2_HAS_TF_MODE 1 #define LIBGCC2_TF_CEXT q -#define TF_SIZE 113 /* Static stack checking is supported by means of probes. */ #define STACK_CHECK_STATIC_BUILTIN 1 Index: gcc/config/i386/gnu-user-common.h =================================================================== --- gcc/config/i386/gnu-user-common.h (revision 214954) +++ gcc/config/i386/gnu-user-common.h (working copy) @@ -61,7 +61,6 @@ along with GCC; see the file COPYING3. If not see #undef LIBGCC2_HAS_TF_MODE #define LIBGCC2_HAS_TF_MODE 1 #define LIBGCC2_TF_CEXT q -#define TF_SIZE 113 #define TARGET_ASM_FILE_END file_end_indicate_exec_stack Index: gcc/config/i386/openbsdelf.h =================================================================== --- gcc/config/i386/openbsdelf.h (revision 214954) +++ gcc/config/i386/openbsdelf.h (working copy) @@ -116,4 +116,3 @@ along with GCC; see the file COPYING3. If not see #undef LIBGCC2_HAS_TF_MODE #define LIBGCC2_HAS_TF_MODE 1 #define LIBGCC2_TF_CEXT q -#define TF_SIZE 113 Index: gcc/config/i386/sol2.h =================================================================== --- gcc/config/i386/sol2.h (revision 214954) +++ gcc/config/i386/sol2.h (working copy) @@ -241,4 +241,3 @@ along with GCC; see the file COPYING3. If not see #undef LIBGCC2_HAS_TF_MODE #define LIBGCC2_HAS_TF_MODE 1 #define LIBGCC2_TF_CEXT q -#define TF_SIZE 113 Index: gcc/config/ia64/hpux.h =================================================================== --- gcc/config/ia64/hpux.h (revision 214954) +++ gcc/config/ia64/hpux.h (working copy) @@ -192,12 +192,10 @@ do { \ /* Put all *xf routines in libgcc, regardless of long double size. */ #undef LIBGCC2_HAS_XF_MODE #define LIBGCC2_HAS_XF_MODE 1 -#define XF_SIZE 64 /* Put all *tf routines in libgcc, regardless of long double size. */ #undef LIBGCC2_HAS_TF_MODE #define LIBGCC2_HAS_TF_MODE 1 -#define TF_SIZE 113 /* HP-UX headers are C++-compatible. */ #define NO_IMPLICIT_EXTERN_C Index: gcc/config/ia64/linux.h =================================================================== --- gcc/config/ia64/linux.h (revision 214954) +++ gcc/config/ia64/linux.h (working copy) @@ -81,7 +81,6 @@ do { \ #define LIBGCC2_HAS_TF_MODE 1 #undef LIBGCC2_TF_CEXT #define LIBGCC2_TF_CEXT q -#define TF_SIZE 113 #undef TARGET_INIT_LIBFUNCS #define TARGET_INIT_LIBFUNCS ia64_soft_fp_init_libfuncs Index: gcc/doc/tm.texi =================================================================== --- gcc/doc/tm.texi (revision 214954) +++ gcc/doc/tm.texi (working copy) @@ -1602,20 +1602,6 @@ uses this macro should also arrange to use @file{t the libgcc @file{config.host}. @end defmac -@defmac SF_SIZE -@defmacx DF_SIZE -@defmacx XF_SIZE -@defmacx TF_SIZE -Define these macros to be the size in bits of the mantissa of -@code{SFmode}, @code{DFmode}, @code{XFmode} and @code{TFmode} values, -if the defaults in @file{libgcc2.h} are inappropriate. By default, -@code{FLT_MANT_DIG} is used for @code{SF_SIZE}, @code{LDBL_MANT_DIG} -for @code{XF_SIZE} and @code{TF_SIZE}, and @code{DBL_MANT_DIG} or -@code{LDBL_MANT_DIG} for @code{DF_SIZE} according to whether -@code{DOUBLE_TYPE_SIZE} or -@code{LIBGCC2_LONG_DOUBLE_TYPE_SIZE} is 64. -@end defmac - @defmac TARGET_FLT_EVAL_METHOD A C expression for the value for @code{FLT_EVAL_METHOD} in @file{float.h}, assuming, if applicable, that the floating-point control word is in its Index: gcc/doc/tm.texi.in =================================================================== --- gcc/doc/tm.texi.in (revision 214954) +++ gcc/doc/tm.texi.in (working copy) @@ -1444,20 +1444,6 @@ uses this macro should also arrange to use @file{t the libgcc @file{config.host}. @end defmac -@defmac SF_SIZE -@defmacx DF_SIZE -@defmacx XF_SIZE -@defmacx TF_SIZE -Define these macros to be the size in bits of the mantissa of -@code{SFmode}, @code{DFmode}, @code{XFmode} and @code{TFmode} values, -if the defaults in @file{libgcc2.h} are inappropriate. By default, -@code{FLT_MANT_DIG} is used for @code{SF_SIZE}, @code{LDBL_MANT_DIG} -for @code{XF_SIZE} and @code{TF_SIZE}, and @code{DBL_MANT_DIG} or -@code{LDBL_MANT_DIG} for @code{DF_SIZE} according to whether -@code{DOUBLE_TYPE_SIZE} or -@code{LIBGCC2_LONG_DOUBLE_TYPE_SIZE} is 64. -@end defmac - @defmac TARGET_FLT_EVAL_METHOD A C expression for the value for @code{FLT_EVAL_METHOD} in @file{float.h}, assuming, if applicable, that the floating-point control word is in its Index: gcc/system.h =================================================================== --- gcc/system.h (revision 214954) +++ gcc/system.h (working copy) @@ -934,7 +934,7 @@ extern void fancy_abort (const char *, int, const REG_CLASS_FROM_CONSTRAINT REG_CLASS_FOR_CONSTRAINT \ EXTRA_CONSTRAINT_STR EXTRA_MEMORY_CONSTRAINT \ EXTRA_ADDRESS_CONSTRAINT CONST_DOUBLE_OK_FOR_CONSTRAINT_P \ - CALLER_SAVE_PROFITABLE + CALLER_SAVE_PROFITABLE SF_SIZE DF_SIZE XF_SIZE TF_SIZE /* Hooks that are no longer used. */ #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE \ Index: libgcc/libgcc2.c =================================================================== --- libgcc/libgcc2.c (revision 214954) +++ libgcc/libgcc2.c (working copy) @@ -1506,7 +1506,7 @@ __fixsfdi (SFtype a) XFtype __floatdixf (DWtype u) { -#if W_TYPE_SIZE > XF_SIZE +#if W_TYPE_SIZE > __LIBGCC_XF_MANT_DIG__ # error #endif XFtype d = (Wtype) (u >> W_TYPE_SIZE); @@ -1520,7 +1520,7 @@ __floatdixf (DWtype u) XFtype __floatundixf (UDWtype u) { -#if W_TYPE_SIZE > XF_SIZE +#if W_TYPE_SIZE > __LIBGCC_XF_MANT_DIG__ # error #endif XFtype d = (UWtype) (u >> W_TYPE_SIZE); @@ -1534,7 +1534,7 @@ __floatundixf (UDWtype u) TFtype __floatditf (DWtype u) { -#if W_TYPE_SIZE > TF_SIZE +#if W_TYPE_SIZE > __LIBGCC_TF_MANT_DIG__ # error #endif TFtype d = (Wtype) (u >> W_TYPE_SIZE); @@ -1548,7 +1548,7 @@ __floatditf (DWtype u) TFtype __floatunditf (UDWtype u) { -#if W_TYPE_SIZE > TF_SIZE +#if W_TYPE_SIZE > __LIBGCC_TF_MANT_DIG__ # error #endif TFtype d = (UWtype) (u >> W_TYPE_SIZE); @@ -1568,11 +1568,11 @@ __floatunditf (UDWtype u) #if defined(L_floatdisf) #define FUNC __floatdisf #define FSTYPE SFtype -#define FSSIZE SF_SIZE +#define FSSIZE __LIBGCC_SF_MANT_DIG__ #else #define FUNC __floatdidf #define FSTYPE DFtype -#define FSSIZE DF_SIZE +#define FSSIZE __LIBGCC_DF_MANT_DIG__ #endif FSTYPE @@ -1584,18 +1584,18 @@ FUNC (DWtype u) f *= Wtype_MAXp1_F; f += (UWtype)u; return f; -#elif (LIBGCC2_HAS_DF_MODE && F_MODE_OK (DF_SIZE)) \ - || (LIBGCC2_HAS_XF_MODE && F_MODE_OK (XF_SIZE)) \ - || (LIBGCC2_HAS_TF_MODE && F_MODE_OK (TF_SIZE)) +#elif (LIBGCC2_HAS_DF_MODE && F_MODE_OK (__LIBGCC_DF_MANT_DIG__)) \ + || (LIBGCC2_HAS_XF_MODE && F_MODE_OK (__LIBGCC_XF_MANT_DIG__)) \ + || (LIBGCC2_HAS_TF_MODE && F_MODE_OK (__LIBGCC_TF_MANT_DIG__)) -#if (LIBGCC2_HAS_DF_MODE && F_MODE_OK (DF_SIZE)) -# define FSIZE DF_SIZE +#if (LIBGCC2_HAS_DF_MODE && F_MODE_OK (__LIBGCC_DF_MANT_DIG__)) +# define FSIZE __LIBGCC_DF_MANT_DIG__ # define FTYPE DFtype -#elif (LIBGCC2_HAS_XF_MODE && F_MODE_OK (XF_SIZE)) -# define FSIZE XF_SIZE +#elif (LIBGCC2_HAS_XF_MODE && F_MODE_OK (__LIBGCC_XF_MANT_DIG__)) +# define FSIZE __LIBGCC_XF_MANT_DIG__ # define FTYPE XFtype -#elif (LIBGCC2_HAS_TF_MODE && F_MODE_OK (TF_SIZE)) -# define FSIZE TF_SIZE +#elif (LIBGCC2_HAS_TF_MODE && F_MODE_OK (__LIBGCC_TF_MANT_DIG__)) +# define FSIZE __LIBGCC_TF_MANT_DIG__ # define FTYPE TFtype #else # error @@ -1684,11 +1684,11 @@ FUNC (DWtype u) #if defined(L_floatundisf) #define FUNC __floatundisf #define FSTYPE SFtype -#define FSSIZE SF_SIZE +#define FSSIZE __LIBGCC_SF_MANT_DIG__ #else #define FUNC __floatundidf #define FSTYPE DFtype -#define FSSIZE DF_SIZE +#define FSSIZE __LIBGCC_DF_MANT_DIG__ #endif FSTYPE @@ -1700,18 +1700,18 @@ FUNC (UDWtype u) f *= Wtype_MAXp1_F; f += (UWtype)u; return f; -#elif (LIBGCC2_HAS_DF_MODE && F_MODE_OK (DF_SIZE)) \ - || (LIBGCC2_HAS_XF_MODE && F_MODE_OK (XF_SIZE)) \ - || (LIBGCC2_HAS_TF_MODE && F_MODE_OK (TF_SIZE)) +#elif (LIBGCC2_HAS_DF_MODE && F_MODE_OK (__LIBGCC_DF_MANT_DIG__)) \ + || (LIBGCC2_HAS_XF_MODE && F_MODE_OK (__LIBGCC_XF_MANT_DIG__)) \ + || (LIBGCC2_HAS_TF_MODE && F_MODE_OK (__LIBGCC_TF_MANT_DIG__)) -#if (LIBGCC2_HAS_DF_MODE && F_MODE_OK (DF_SIZE)) -# define FSIZE DF_SIZE +#if (LIBGCC2_HAS_DF_MODE && F_MODE_OK (__LIBGCC_DF_MANT_DIG__)) +# define FSIZE __LIBGCC_DF_MANT_DIG__ # define FTYPE DFtype -#elif (LIBGCC2_HAS_XF_MODE && F_MODE_OK (XF_SIZE)) -# define FSIZE XF_SIZE +#elif (LIBGCC2_HAS_XF_MODE && F_MODE_OK (__LIBGCC_XF_MANT_DIG__)) +# define FSIZE __LIBGCC_XF_MANT_DIG__ # define FTYPE XFtype -#elif (LIBGCC2_HAS_TF_MODE && F_MODE_OK (TF_SIZE)) -# define FSIZE TF_SIZE +#elif (LIBGCC2_HAS_TF_MODE && F_MODE_OK (__LIBGCC_TF_MANT_DIG__)) +# define FSIZE __LIBGCC_TF_MANT_DIG__ # define FTYPE TFtype #else # error Index: libgcc/libgcc2.h =================================================================== --- libgcc/libgcc2.h (revision 214954) +++ libgcc/libgcc2.h (working copy) @@ -59,41 +59,35 @@ extern void __eprintf (const char *, const char *, (BITS_PER_UNIT == 8 && LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 128) #endif -#ifndef SF_SIZE +#ifndef __LIBGCC_SF_MANT_DIG__ #if LIBGCC2_HAS_SF_MODE -#define SF_SIZE FLT_MANT_DIG +#error __LIBGCC_SF_MANT_DIG__ not defined #else -#define SF_SIZE 0 +#define __LIBGCC_SF_MANT_DIG__ 0 #endif #endif -#ifndef DF_SIZE +#ifndef __LIBGCC_DF_MANT_DIG__ #if LIBGCC2_HAS_DF_MODE -#if __SIZEOF_DOUBLE__ * __CHAR_BIT__ == 64 -#define DF_SIZE DBL_MANT_DIG -#elif LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 64 -#define DF_SIZE LDBL_MANT_DIG +#error __LIBGCC_DF_MANT_DIG__ not defined #else -#define DF_SIZE 0 +#define __LIBGCC_DF_MANT_DIG__ 0 #endif -#else -#define DF_SIZE 0 #endif -#endif -#ifndef XF_SIZE +#ifndef __LIBGCC_XF_MANT_DIG__ #if LIBGCC2_HAS_XF_MODE -#define XF_SIZE LDBL_MANT_DIG +#error __LIBGCC_XF_MANT_DIG__ not defined #else -#define XF_SIZE 0 +#define __LIBGCC_XF_MANT_DIG__ 0 #endif #endif -#ifndef TF_SIZE +#ifndef __LIBGCC_TF_MANT_DIG__ #if LIBGCC2_HAS_TF_MODE -#define TF_SIZE LDBL_MANT_DIG +#error __LIBGCC_TF_MANT_DIG__ not defined #else -#define TF_SIZE 0 +#define __LIBGCC_TF_MANT_DIG__ 0 #endif #endif -- Joseph S. Myers jos...@codesourcery.com