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Remove LIBGCC2_HAS_?F_MODE target macros. 

This patch removes the LIBGCC2_HAS_{SF,DF,XF,TF}_MODE target macros,
replacing them by predefines with -fbuilding-libgcc, together with a
target hook that can influence those predefines when needed.

The new default is that a floating-point mode is supported in libgcc
if (a) it passes the scalar_mode_supported_p hook (otherwise it's not
plausible for it to be supported in libgcc) and (b) it's one of those
four modes (since those are the modes for which libgcc hardcodes the
possibility of support).  The target hook can override the default
choice (in either direction) for modes that pass
scalar_mode_supported_p (although overriding in the direction of
returning true when the default would return false only makes sense if
all relevant functions are specially defined in libgcc for that
particular target).

The previous default settings depended on various settings such as
LIBGCC2_LONG_DOUBLE_TYPE_SIZE, as well as targets defining the above
target macros if the default wasn't correct.

The default scalar_mode_supported_p only declares a floating-point
mode to be supported if it matches one of float / double / long
double.  This means that in most cases where a mode is only supported
conditionally in libgcc (TFmode only supported if it's the mode of
long double, most commonly), the default gets things right.  Overrides
were needed in the following cases:

* SFmode would always have been supported in libgcc (the condition was
  BITS_PER_UNIT == 8, true for all current targets), but pdp11
  defaults to 64-bit float, and in that case SFmode would fail
  scalar_mode_supported_p.  I don't know if libgcc actually built for
  pdp11 (and the port may well no longer be being used), but this
  patch adds a scalar_mode_supported_p hook to it to ensure SFmode is
  treated as supported.

* Certain i386 and ia64 targets need the new hook to match the
  existing cases for when XFmode or TFmode support is present in
  libgcc.  For i386, the hook can always declare XFmode to be
  supported - the cases where it's not are the cases where long double
  is TFmode, in which case XFmode fails scalar_mode_supported_p[*] -
  but TFmode support needs to be conditional.  (And of the targets not
  defining LIBGCC2_HAS_TF_MODE before this patch, some defined
  LONG_DOUBLE_TYPE_SIZE to 64, so ensuring LIBGCC2_HAS_TF_MODE would
  always be false, while others did not define it, so allowing it to
  be true in the -mlong-double-128 case.  This patch matches that
  logic, although I suspect all the latter targets would have been
  broken if you tried to enable -mlong-double-128 by default, for lack
  of the soft-fp TFmode support in libgcc, which is separately
  configured.)

  [*] I don't know if it's deliberate not to support __float80 at all
  with -mlong-double-128.

In order to implement the default version of the new hook,
insn-modes.h was made to contain macros such as HAVE_TFmode for each
machine mode, so the default hook can contain conditionals on whether
XFmode and TFmode exist (to match the hardcoding of a list of modes in
libgcc).  This is also used in fortran/trans-types.c; previously it
had a conditional on defined(LIBGCC2_HAS_TF_MODE) (a bit dubious,
since it ignored the value of the macro), which is replaced by testing
defined(HAVE_TFmode), in conjunction with requiring
targetm.libgcc_floating_mode_supported_p.

(Fortran is testing something stronger than that hook: not only is
libgcc support required, but also libm or equivalent.  Thus, it has a
test for ENABLE_LIBQUADMATH_SUPPORT in the case that the mode is
TFmode and that's not the same as any of the three standard types.
The old and new tests are intended to accept exactly the same set of
modes for all targets.)

Apart from the four target macros eliminated by this patch, it gets us
closer to eliminating LIBGCC2_LONG_DOUBLE_TYPE_SIZE as well, though a
few more places using that macro need changing first.

Bootstrapped with no regressions on x86_64-unknown-linux-gnu; also
built cc1 for crosses to ia64-elf and pdp11-none as a minimal test of
changes for those targets.

gcc:
	* target.def (libgcc_floating_mode_supported_p): New hook.
	* targhooks.c (default_libgcc_floating_mode_supported_p): New
	function.
	* targhooks.h (default_libgcc_floating_mode_supported_p): Declare.
	* doc/tm.texi.in (LIBGCC2_HAS_DF_MODE, LIBGCC2_HAS_XF_MODE)
	(LIBGCC2_HAS_TF_MODE): Remove.
	(TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P): New @hook.
	* doc/tm.texi: Regenerate.
	* genmodes.c (emit_insn_modes_h): Define HAVE_%smode for each
	machine mode.
	* system.h (LIBGCC2_HAS_SF_MODE, LIBGCC2_HAS_DF_MODE)
	(LIBGCC2_HAS_XF_MODE, LIBGCC2_HAS_TF_MODE): Poison.
	* config/i386/cygming.h (LIBGCC2_HAS_TF_MODE): Remove.
	* config/i386/darwin.h (LIBGCC2_HAS_TF_MODE): Remove.
	* config/i386/djgpp.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Define.
	* config/i386/dragonfly.h (LIBGCC2_HAS_TF_MODE): Remove.
	* config/i386/freebsd.h (LIBGCC2_HAS_TF_MODE): Remove.
	* config/i386/gnu-user-common.h (LIBGCC2_HAS_TF_MODE): Remove.
	* config/i386/i386-interix.h (IX86_NO_LIBGCC_TFMODE): Define.
	* config/i386/i386.c (ix86_libgcc_floating_mode_supported_p): New
	function.
	(TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P): Define.
	* config/i386/i386elf.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Define.
	* config/i386/lynx.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Define.
	* config/i386/netbsd-elf.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Define.
	* config/i386/netbsd64.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Define.
	* config/i386/nto.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Define.
	* config/i386/openbsd.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Define.
	* config/i386/openbsdelf.h (LIBGCC2_HAS_TF_MODE): Remove.
	* config/i386/rtemself.h (IX86_NO_LIBGCC_TFMODE): Define.
	* config/i386/sol2.h (LIBGCC2_HAS_TF_MODE): Remove.
	* config/i386/vx-common.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Define.
	* config/ia64/elf.h (IA64_NO_LIBGCC_TFMODE): Define.
	* config/ia64/freebsd.h (IA64_NO_LIBGCC_TFMODE): Define.
	* config/ia64/hpux.h (LIBGCC2_HAS_XF_MODE, LIBGCC2_HAS_TF_MODE):
	Remove.
	* config/ia64/ia64.c (TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P):
	New macro.
	(ia64_libgcc_floating_mode_supported_p): New function.
	* config/ia64/linux.h (LIBGCC2_HAS_TF_MODE): Remove.
	* config/ia64/vms.h (IA64_NO_LIBGCC_XFMODE)
	(IA64_NO_LIBGCC_TFMODE): Define.
	* config/msp430/msp430.h (LIBGCC2_HAS_DF_MODE): Remove.
	* config/pdp11/pdp11.c (TARGET_SCALAR_MODE_SUPPORTED_P): New
	macro.
	(pdp11_scalar_mode_supported_p): New function.
	* config/rl78/rl78.h (LIBGCC2_HAS_DF_MODE): Remove.
	* config/rx/rx.h (LIBGCC2_HAS_DF_MODE): Remove.

gcc/c-family:
	* c-cppbuiltin.c (c_cpp_builtins): Define __LIBGCC_HAS_%s_MODE__
	macros for floating-point modes.

gcc/fortran:
	* trans-types.c (gfc_init_kinds): Check
	targetm.libgcc_floating_mode_supported_p for floating-point
	modes.  Check HAVE_TFmode instead of LIBGCC2_HAS_TF_MODE.

libgcc:
	* libgcc2.h (LIBGCC2_HAS_SF_MODE): Define using
	__LIBGCC_HAS_SF_MODE__.
	(LIBGCC2_HAS_DF_MODE): Define using __LIBGCC_HAS_DF_MODE__.
	(LIBGCC2_HAS_XF_MODE): Define using __LIBGCC_HAS_XF_MODE__.
	(LIBGCC2_HAS_TF_MODE): Define using __LIBGCC_HAS_TF_MODE__.
	* config/libbid/bid_gcc_intrinsics.h
	(LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Do not define.
	(LIBGCC2_HAS_XF_MODE): Define using __LIBGCC_HAS_XF_MODE__.
	(LIBGCC2_HAS_TF_MODE): Define using __LIBGCC_HAS_TF_MODE__.
	* fixed-bit.h (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Do not define.
	(LIBGCC2_HAS_SF_MODE): Define using __LIBGCC_HAS_SF_MODE__.
	(LIBGCC2_HAS_DF_MODE): Define using __LIBGCC_HAS_DF_MODE__.

From-SVN: r215215
This commit is contained in:
Joseph Myers 2014-09-12 13:05:18 +01:00 committed by Joseph Myers
parent 2813904b11
commit 8cc4b7a26d
44 changed files with 279 additions and 112 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

50
gcc/ChangeLog
View File

@ -1,3 +1,53 @@
2014-09-12 Joseph Myers <joseph@codesourcery.com>
* target.def (libgcc_floating_mode_supported_p): New hook.
* targhooks.c (default_libgcc_floating_mode_supported_p): New
function.
* targhooks.h (default_libgcc_floating_mode_supported_p): Declare.
* doc/tm.texi.in (LIBGCC2_HAS_DF_MODE, LIBGCC2_HAS_XF_MODE)
(LIBGCC2_HAS_TF_MODE): Remove.
(TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P): New @hook.
* doc/tm.texi: Regenerate.
* genmodes.c (emit_insn_modes_h): Define HAVE_%smode for each
machine mode.
* system.h (LIBGCC2_HAS_SF_MODE, LIBGCC2_HAS_DF_MODE)
(LIBGCC2_HAS_XF_MODE, LIBGCC2_HAS_TF_MODE): Poison.
* config/i386/cygming.h (LIBGCC2_HAS_TF_MODE): Remove.
* config/i386/darwin.h (LIBGCC2_HAS_TF_MODE): Remove.
* config/i386/djgpp.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Define.
* config/i386/dragonfly.h (LIBGCC2_HAS_TF_MODE): Remove.
* config/i386/freebsd.h (LIBGCC2_HAS_TF_MODE): Remove.
* config/i386/gnu-user-common.h (LIBGCC2_HAS_TF_MODE): Remove.
* config/i386/i386-interix.h (IX86_NO_LIBGCC_TFMODE): Define.
* config/i386/i386.c (ix86_libgcc_floating_mode_supported_p): New
function.
(TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P): Define.
* config/i386/i386elf.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Define.
* config/i386/lynx.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Define.
* config/i386/netbsd-elf.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Define.
* config/i386/netbsd64.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Define.
* config/i386/nto.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Define.
* config/i386/openbsd.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Define.
* config/i386/openbsdelf.h (LIBGCC2_HAS_TF_MODE): Remove.
* config/i386/rtemself.h (IX86_NO_LIBGCC_TFMODE): Define.
* config/i386/sol2.h (LIBGCC2_HAS_TF_MODE): Remove.
* config/i386/vx-common.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Define.
* config/ia64/elf.h (IA64_NO_LIBGCC_TFMODE): Define.
* config/ia64/freebsd.h (IA64_NO_LIBGCC_TFMODE): Define.
* config/ia64/hpux.h (LIBGCC2_HAS_XF_MODE, LIBGCC2_HAS_TF_MODE):
Remove.
* config/ia64/ia64.c (TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P):
New macro.
(ia64_libgcc_floating_mode_supported_p): New function.
* config/ia64/linux.h (LIBGCC2_HAS_TF_MODE): Remove.
* config/ia64/vms.h (IA64_NO_LIBGCC_XFMODE)
(IA64_NO_LIBGCC_TFMODE): Define.
* config/msp430/msp430.h (LIBGCC2_HAS_DF_MODE): Remove.
* config/pdp11/pdp11.c (TARGET_SCALAR_MODE_SUPPORTED_P): New
macro.
(pdp11_scalar_mode_supported_p): New function.
* config/rl78/rl78.h (LIBGCC2_HAS_DF_MODE): Remove.
* config/rx/rx.h (LIBGCC2_HAS_DF_MODE): Remove.
2014-09-12 Richard Biener <rguenther@suse.de>
PR middle-end/63237

5
gcc/c-family/ChangeLog
View File

@ -1,3 +1,8 @@
2014-09-12 Joseph Myers <joseph@codesourcery.com>
* c-cppbuiltin.c (c_cpp_builtins): Define __LIBGCC_HAS_%s_MODE__
macros for floating-point modes.
2014-09-11 Marc Glisse <marc.glisse@inria.fr>
PR target/58757

7
gcc/c-family/c-cppbuiltin.c
View File

@ -949,6 +949,13 @@ c_cpp_builtins (cpp_reader *pfile)
sprintf (macro_name, "__LIBGCC_%s_MANT_DIG__", name);
builtin_define_with_int_value (macro_name,
REAL_MODE_FORMAT (mode)->p);
if (!targetm.scalar_mode_supported_p (mode)
|| !targetm.libgcc_floating_mode_supported_p (mode))
continue;
macro_name = (char *) alloca (strlen (name)
+ sizeof ("__LIBGCC_HAS__MODE__"));
sprintf (macro_name, "__LIBGCC_HAS_%s_MODE__", name);
cpp_define (pfile, macro_name);
}
/* For libgcc crtstuff.c and libgcc2.c. */

2
gcc/config/i386/cygming.h
View File

@ -340,8 +340,6 @@ do { \
asm_output_aligned_bss ((FILE), (DECL), (NAME), (SIZE), (ALIGN))
/* Put all *tf routines in libgcc. */
#undef LIBGCC2_HAS_TF_MODE
#define LIBGCC2_HAS_TF_MODE 1
#define LIBGCC2_TF_CEXT q
/* Output function declarations at the end of the file. */

2
gcc/config/i386/darwin.h
View File

@ -154,8 +154,6 @@ extern int darwin_emit_branch_islands;
#define SHIFT_DOUBLE_OMITS_COUNT 0
/* Put all *tf routines in libgcc. */
#undef LIBGCC2_HAS_TF_MODE
#define LIBGCC2_HAS_TF_MODE 1
#define LIBGCC2_TF_CEXT q
#undef TARGET_ASM_FILE_END

2
gcc/config/i386/djgpp.h
View File

@ -177,3 +177,5 @@ while (0)
/* Support for C++ templates. */
#undef MAKE_DECL_ONE_ONLY
#define MAKE_DECL_ONE_ONLY(DECL) (DECL_WEAK (DECL) = 1)
#define IX86_MAYBE_NO_LIBGCC_TFMODE

2
gcc/config/i386/dragonfly.h
View File

@ -90,8 +90,6 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
#define TARGET_96_ROUND_53_LONG_DOUBLE (!TARGET_64BIT)
/* Put all *tf routines in libgcc. */
#undef LIBGCC2_HAS_TF_MODE
#define LIBGCC2_HAS_TF_MODE 1
#define LIBGCC2_TF_CEXT q
/* Static stack checking is supported by means of probes. */

2
gcc/config/i386/freebsd.h
View File

@ -132,8 +132,6 @@ along with GCC; see the file COPYING3. If not see
#define TARGET_96_ROUND_53_LONG_DOUBLE (!TARGET_64BIT)
/* Put all *tf routines in libgcc. */
#undef LIBGCC2_HAS_TF_MODE
#define LIBGCC2_HAS_TF_MODE 1
#define LIBGCC2_TF_CEXT q
/* Static stack checking is supported by means of probes. */

2
gcc/config/i386/gnu-user-common.h
View File

@ -58,8 +58,6 @@ along with GCC; see the file COPYING3. If not see
GNU_USER_TARGET_ENDFILE_SPEC
/* Put all *tf routines in libgcc. */
#undef LIBGCC2_HAS_TF_MODE
#define LIBGCC2_HAS_TF_MODE 1
#define LIBGCC2_TF_CEXT q
#define TARGET_ASM_FILE_END file_end_indicate_exec_stack

2
gcc/config/i386/i386-interix.h
View File

@ -143,6 +143,8 @@ do { \
#undef LIBGCC2_LONG_DOUBLE_TYPE_SIZE
#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
#define IX86_NO_LIBGCC_TFMODE
#undef TARGET_LIBC_HAS_FUNCTION
#define TARGET_LIBC_HAS_FUNCTION no_c99_libc_has_function

29
gcc/config/i386/i386.c
View File

@ -41218,6 +41218,31 @@ ix86_vector_mode_supported_p (enum machine_mode mode)
return false;
}
/* Implement target hook libgcc_floating_mode_supported_p. */
static bool
ix86_libgcc_floating_mode_supported_p (enum machine_mode mode)
{
switch (mode)
{
case SFmode:
case DFmode:
case XFmode:
return true;
case TFmode:
#ifdef IX86_NO_LIBGCC_TFMODE
return false;
#elif defined IX86_MAYBE_NO_LIBGCC_TFMODE
return TARGET_LONG_DOUBLE_128;
#else
return true;
#endif
default:
return false;
}
}
/* Target hook for c_mode_for_suffix. */
static enum machine_mode
ix86_c_mode_for_suffix (char suffix)
@ -47283,6 +47308,10 @@ ix86_atomic_assign_expand_fenv (tree *hold, tree *clear, tree *update)
#undef TARGET_VECTOR_MODE_SUPPORTED_P
#define TARGET_VECTOR_MODE_SUPPORTED_P ix86_vector_mode_supported_p
#undef TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P
#define TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P \
ix86_libgcc_floating_mode_supported_p
#undef TARGET_C_MODE_FOR_SUFFIX
#define TARGET_C_MODE_FOR_SUFFIX ix86_c_mode_for_suffix

2
gcc/config/i386/i386elf.h
View File

@ -101,3 +101,5 @@ along with GCC; see the file COPYING3. If not see
#undef ASM_OUTPUT_ALIGNED_BSS
#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
#define IX86_MAYBE_NO_LIBGCC_TFMODE

2
gcc/config/i386/lynx.h
View File

@ -85,3 +85,5 @@ along with GCC; see the file COPYING3. If not see
TLS is detected by configure. We undefine it here. */
#undef HAVE_AS_TLS
#define IX86_MAYBE_NO_LIBGCC_TFMODE

2
gcc/config/i386/netbsd-elf.h
View File

@ -119,3 +119,5 @@ along with GCC; see the file COPYING3. If not see
#define DEFAULT_PCC_STRUCT_RETURN 1
#define HAVE_ENABLE_EXECUTE_STACK
#define IX86_MAYBE_NO_LIBGCC_TFMODE

2
gcc/config/i386/netbsd64.h
View File

@ -67,3 +67,5 @@ along with GCC; see the file COPYING3. If not see
}
#define HAVE_ENABLE_EXECUTE_STACK
#define IX86_MAYBE_NO_LIBGCC_TFMODE

2
gcc/config/i386/nto.h
View File

@ -103,3 +103,5 @@ crti.o%s \
#define TARGET_POSIX_IO
#undef DBX_REGISTER_NUMBER
#define IX86_MAYBE_NO_LIBGCC_TFMODE

2
gcc/config/i386/openbsd.h
View File

@ -99,3 +99,5 @@ along with GCC; see the file COPYING3. If not see
#undef ASM_QUAD
#define TARGET_HAVE_NAMED_SECTIONS false
#define IX86_MAYBE_NO_LIBGCC_TFMODE

2
gcc/config/i386/openbsdelf.h
View File

@ -113,6 +113,4 @@ along with GCC; see the file COPYING3. If not see
#define HAVE_ENABLE_EXECUTE_STACK
/* Put all *tf routines in libgcc. */
#undef LIBGCC2_HAS_TF_MODE
#define LIBGCC2_HAS_TF_MODE 1
#define LIBGCC2_TF_CEXT q

2
gcc/config/i386/rtemself.h
View File

@ -38,3 +38,5 @@ along with GCC; see the file COPYING3. If not see
#else
#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 80
#endif
#define IX86_NO_LIBGCC_TFMODE

2
gcc/config/i386/sol2.h
View File

@ -238,6 +238,4 @@ along with GCC; see the file COPYING3. If not see
#endif
/* Put all *tf routines in libgcc. */
#undef LIBGCC2_HAS_TF_MODE
#define LIBGCC2_HAS_TF_MODE 1
#define LIBGCC2_TF_CEXT q

2
gcc/config/i386/vx-common.h
View File

@ -31,3 +31,5 @@ along with GCC; see the file COPYING3. If not see
#undef DBX_REGISTER_NUMBER
#define DBX_REGISTER_NUMBER(n) svr4_dbx_register_map[n]
#define IX86_MAYBE_NO_LIBGCC_TFMODE

2
gcc/config/ia64/elf.h
View File

@ -65,4 +65,6 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}}}\
crti.o%s crtbegin.o%s"
#define IA64_NO_LIBGCC_TFMODE
/* End of elf.h */

2
gcc/config/ia64/freebsd.h
View File

@ -50,3 +50,5 @@ along with GCC; see the file COPYING3. If not see
#define TARGET_ELF 1
#define JMP_BUF_SIZE 76
#define IA64_NO_LIBGCC_TFMODE

8
gcc/config/ia64/hpux.h
View File

@ -189,14 +189,6 @@ do { \
#define FLOAT_LIB_COMPARE_RETURNS_BOOL(MODE, COMPARISON) ((MODE) == TFmode)
/* Put all *xf routines in libgcc, regardless of long double size. */
#undef LIBGCC2_HAS_XF_MODE
#define LIBGCC2_HAS_XF_MODE 1
/* Put all *tf routines in libgcc, regardless of long double size. */
#undef LIBGCC2_HAS_TF_MODE
#define LIBGCC2_HAS_TF_MODE 1
/* HP-UX headers are C++-compatible. */
#define NO_IMPLICIT_EXTERN_C

35
gcc/config/ia64/ia64.c
View File

@ -319,6 +319,7 @@ static rtx ia64_struct_value_rtx (tree, int);
static tree ia64_gimplify_va_arg (tree, tree, gimple_seq *, gimple_seq *);
static bool ia64_scalar_mode_supported_p (enum machine_mode mode);
static bool ia64_vector_mode_supported_p (enum machine_mode mode);
static bool ia64_libgcc_floating_mode_supported_p (enum machine_mode mode);
static bool ia64_legitimate_constant_p (enum machine_mode, rtx);
static bool ia64_legitimate_address_p (enum machine_mode, rtx, bool);
static bool ia64_cannot_force_const_mem (enum machine_mode, rtx);
@ -598,6 +599,10 @@ static const struct attribute_spec ia64_attribute_table[] =
#undef TARGET_VECTOR_MODE_SUPPORTED_P
#define TARGET_VECTOR_MODE_SUPPORTED_P ia64_vector_mode_supported_p
#undef TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P
#define TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P \
ia64_libgcc_floating_mode_supported_p
/* ia64 architecture manual 4.4.7: ... reads, writes, and flushes may occur
in an order different from the specified program order. */
#undef TARGET_RELAXED_ORDERING
@ -10939,6 +10944,36 @@ ia64_vector_mode_supported_p (enum machine_mode mode)
}
}
/* Implement TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P. */
static bool
ia64_libgcc_floating_mode_supported_p (enum machine_mode mode)
{
switch (mode)
{
case SFmode:
case DFmode:
return true;
case XFmode:
#ifdef IA64_NO_LIBGCC_XFMODE
return false;
#else
return true;
#endif
case TFmode:
#ifdef IA64_NO_LIBGCC_TFMODE
return false;
#else
return true;
#endif
default:
return false;
}
}
/* Implement the FUNCTION_PROFILER macro. */
void

2
gcc/config/ia64/linux.h
View File

@ -77,8 +77,6 @@ do { \
#define LINK_EH_SPEC ""
/* Put all *tf routines in libgcc. */
#undef LIBGCC2_HAS_TF_MODE
#define LIBGCC2_HAS_TF_MODE 1
#undef LIBGCC2_TF_CEXT
#define LIBGCC2_TF_CEXT q

3
gcc/config/ia64/vms.h
View File

@ -154,3 +154,6 @@ STATIC func_ptr __CTOR_LIST__[1] \
/* Default values for _CRTL_VER and _VMS_VER. */
#define VMS_DEFAULT_CRTL_VER 80300000
#define VMS_DEFAULT_VMS_VER 80300000
#define IA64_NO_LIBGCC_XFMODE
#define IA64_NO_LIBGCC_TFMODE

1
gcc/config/msp430/msp430.h
View File

@ -112,7 +112,6 @@ extern bool msp430x;
#define DOUBLE_TYPE_SIZE 64
#define LONG_DOUBLE_TYPE_SIZE 64 /*DOUBLE_TYPE_SIZE*/
#define LIBGCC2_HAS_DF_MODE 1
#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
#define DEFAULT_SIGNED_CHAR 0

16
gcc/config/pdp11/pdp11.c
View File

@ -157,6 +157,8 @@ static void pdp11_function_arg_advance (cumulative_args_t,
enum machine_mode, const_tree, bool);
static void pdp11_conditional_register_usage (void);
static bool pdp11_legitimate_constant_p (enum machine_mode, rtx);
static bool pdp11_scalar_mode_supported_p (enum machine_mode);
/* Initialize the GCC target structure. */
#undef TARGET_ASM_BYTE_OP
@ -223,6 +225,9 @@ static bool pdp11_legitimate_constant_p (enum machine_mode, rtx);
#undef TARGET_LEGITIMATE_CONSTANT_P
#define TARGET_LEGITIMATE_CONSTANT_P pdp11_legitimate_constant_p
#undef TARGET_SCALAR_MODE_SUPPORTED_P
#define TARGET_SCALAR_MODE_SUPPORTED_P pdp11_scalar_mode_supported_p
/* A helper function to determine if REGNO should be saved in the
current function's stack frame. */
@ -1901,4 +1906,15 @@ pdp11_legitimate_constant_p (enum machine_mode mode ATTRIBUTE_UNUSED, rtx x)
return GET_CODE (x) != CONST_DOUBLE || legitimate_const_double_p (x);
}
/* Implement TARGET_SCALAR_MODE_SUPPORTED_P. */
static bool
pdp11_scalar_mode_supported_p (enum machine_mode mode)
{
/* Support SFmode even with -mfloat64. */
if (mode == SFmode)
return true;
return default_scalar_mode_supported_p (mode);
}
struct gcc_target targetm = TARGET_INITIALIZER;

1
gcc/config/rl78/rl78.h
View File

@ -98,7 +98,6 @@
#define DOUBLE_TYPE_SIZE 32 /*64*/
#define LONG_DOUBLE_TYPE_SIZE 64 /*DOUBLE_TYPE_SIZE*/
#define LIBGCC2_HAS_DF_MODE 1
#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
#define DEFAULT_SIGNED_CHAR 0

2
gcc/config/rx/rx.h
View File

@ -131,10 +131,8 @@
#define LONG_DOUBLE_TYPE_SIZE DOUBLE_TYPE_SIZE
#ifdef __RX_32BIT_DOUBLES__
#define LIBGCC2_HAS_DF_MODE 0
#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 32
#else
#define LIBGCC2_HAS_DF_MODE 1
#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
#endif

31
gcc/doc/tm.texi
View File

@ -1549,29 +1549,6 @@ if you want routines in @file{libgcc2.a} for a size other than
default is @code{LONG_DOUBLE_TYPE_SIZE}.
@end defmac
@defmac LIBGCC2_HAS_DF_MODE
Define this macro if neither @code{DOUBLE_TYPE_SIZE} nor
@code{LIBGCC2_LONG_DOUBLE_TYPE_SIZE} is
@code{DFmode} but you want @code{DFmode} routines in @file{libgcc2.a}
anyway. If you don't define this and either @code{DOUBLE_TYPE_SIZE}
or @code{LIBGCC2_LONG_DOUBLE_TYPE_SIZE} is 64 then the default is 1,
otherwise it is 0.
@end defmac
@defmac LIBGCC2_HAS_XF_MODE
Define this macro if @code{LIBGCC2_LONG_DOUBLE_TYPE_SIZE} is not
@code{XFmode} but you want @code{XFmode} routines in @file{libgcc2.a}
anyway. If you don't define this and @code{LIBGCC2_LONG_DOUBLE_TYPE_SIZE}
is 80 then the default is 1, otherwise it is 0.
@end defmac
@defmac LIBGCC2_HAS_TF_MODE
Define this macro if @code{LIBGCC2_LONG_DOUBLE_TYPE_SIZE} is not
@code{TFmode} but you want @code{TFmode} routines in @file{libgcc2.a}
anyway. If you don't define this and @code{LIBGCC2_LONG_DOUBLE_TYPE_SIZE}
is 128 then the default is 1, otherwise it is 0.
@end defmac
@defmac LIBGCC2_GNU_PREFIX
This macro corresponds to the @code{TARGET_LIBFUNC_GNU_PREFIX} target
hook and should be defined if that hook is overriden to be true. It
@ -4226,6 +4203,14 @@ If this hook allows @code{val} to have a scalar mode, then
@code{int8x8x3_t}s in registers rather than forcing them onto the stack.
@end deftypefn
@deftypefn {Target Hook} bool TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P (enum machine_mode @var{mode})
Define this to return nonzero if libgcc provides support for the
floating-point mode @var{mode}, which is known to pass
@code{TARGET_SCALAR_MODE_SUPPORTED_P}. The default version of this
hook returns true for all of @code{SFmode}, @code{DFmode},
@code{XFmode} and @code{TFmode}, if such modes exist.
@end deftypefn
@deftypefn {Target Hook} bool TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P (enum machine_mode @var{mode})
Define this to return nonzero for machine modes for which the port has
small register classes. If this target hook returns nonzero for a given

25
gcc/doc/tm.texi.in
View File

@ -1391,29 +1391,6 @@ if you want routines in @file{libgcc2.a} for a size other than
default is @code{LONG_DOUBLE_TYPE_SIZE}.
@end defmac
@defmac LIBGCC2_HAS_DF_MODE
Define this macro if neither @code{DOUBLE_TYPE_SIZE} nor
@code{LIBGCC2_LONG_DOUBLE_TYPE_SIZE} is
@code{DFmode} but you want @code{DFmode} routines in @file{libgcc2.a}
anyway. If you don't define this and either @code{DOUBLE_TYPE_SIZE}
or @code{LIBGCC2_LONG_DOUBLE_TYPE_SIZE} is 64 then the default is 1,
otherwise it is 0.
@end defmac
@defmac LIBGCC2_HAS_XF_MODE
Define this macro if @code{LIBGCC2_LONG_DOUBLE_TYPE_SIZE} is not
@code{XFmode} but you want @code{XFmode} routines in @file{libgcc2.a}
anyway. If you don't define this and @code{LIBGCC2_LONG_DOUBLE_TYPE_SIZE}
is 80 then the default is 1, otherwise it is 0.
@end defmac
@defmac LIBGCC2_HAS_TF_MODE
Define this macro if @code{LIBGCC2_LONG_DOUBLE_TYPE_SIZE} is not
@code{TFmode} but you want @code{TFmode} routines in @file{libgcc2.a}
anyway. If you don't define this and @code{LIBGCC2_LONG_DOUBLE_TYPE_SIZE}
is 128 then the default is 1, otherwise it is 0.
@end defmac
@defmac LIBGCC2_GNU_PREFIX
This macro corresponds to the @code{TARGET_LIBFUNC_GNU_PREFIX} target
hook and should be defined if that hook is overriden to be true. It
@ -3530,6 +3507,8 @@ stack.
@hook TARGET_ARRAY_MODE_SUPPORTED_P
@hook TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P
@hook TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P
@hook TARGET_FLAGS_REGNUM

6
gcc/fortran/ChangeLog
View File

@ -1,3 +1,9 @@
2014-09-12 Joseph Myers <joseph@codesourcery.com>
* trans-types.c (gfc_init_kinds): Check
targetm.libgcc_floating_mode_supported_p for floating-point
modes. Check HAVE_TFmode instead of LIBGCC2_HAS_TF_MODE.
2014-09-05 Joost VandeVondele <vondele@gcc.gnu.org>
PR fortran/62245

9
gcc/fortran/trans-types.c
View File

@ -31,8 +31,8 @@ along with GCC; see the file COPYING3. If not see
BOOL_TYPE_SIZE, BITS_PER_UNIT, POINTER_SIZE,
INT_TYPE_SIZE, CHAR_TYPE_SIZE, SHORT_TYPE_SIZE,
LONG_TYPE_SIZE, LONG_LONG_TYPE_SIZE,
FLOAT_TYPE_SIZE, DOUBLE_TYPE_SIZE,
LONG_DOUBLE_TYPE_SIZE and LIBGCC2_HAS_TF_MODE. */
FLOAT_TYPE_SIZE, DOUBLE_TYPE_SIZE and
LONG_DOUBLE_TYPE_SIZE. */
#include "tree.h"
#include "stor-layout.h"
#include "stringpool.h"
@ -427,10 +427,13 @@ gfc_init_kinds (void)
/* Only let float, double, long double and __float128 go through.
Runtime support for others is not provided, so they would be
useless. */
if (!targetm.libgcc_floating_mode_supported_p ((enum machine_mode)
mode))
continue;
if (mode != TYPE_MODE (float_type_node)
&& (mode != TYPE_MODE (double_type_node))
&& (mode != TYPE_MODE (long_double_type_node))
#if defined(LIBGCC2_HAS_TF_MODE) && defined(ENABLE_LIBQUADMATH_SUPPORT)
#if defined(HAVE_TFmode) && defined(ENABLE_LIBQUADMATH_SUPPORT)
&& (mode != TFmode)
#endif
)

1
gcc/genmodes.c
View File

@ -1029,6 +1029,7 @@ enum machine_mode\n{");
int count_ = printf (" %smode,", m->name);
printf ("%*s/* %s:%d */\n", 27 - count_, "",
trim_filename (m->file), m->line);
printf ("#define HAVE_%smode\n", m->name);
}
puts (" MAX_MACHINE_MODE,\n");

3
gcc/system.h
View File

@ -846,7 +846,8 @@ extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN;
CAN_DEBUG_WITHOUT_FP UNLIKELY_EXECUTED_TEXT_SECTION_NAME \
HOT_TEXT_SECTION_NAME LEGITIMATE_CONSTANT_P ALWAYS_STRIP_DOTDOT \
OUTPUT_ADDR_CONST_EXTRA SMALL_REGISTER_CLASSES ASM_OUTPUT_IDENT \
ASM_BYTE_OP MEMBER_TYPE_FORCES_BLK
ASM_BYTE_OP MEMBER_TYPE_FORCES_BLK LIBGCC2_HAS_SF_MODE \
LIBGCC2_HAS_DF_MODE LIBGCC2_HAS_XF_MODE LIBGCC2_HAS_TF_MODE
/* Target macros only used for code built for the target, that have
moved to libgcc-tm.h or have never been present elsewhere. */

10
gcc/target.def
View File

@ -2985,6 +2985,16 @@ If this hook allows @code{val} to have a scalar mode, then\n\
bool, (enum machine_mode mode, unsigned HOST_WIDE_INT nelems),
hook_bool_mode_uhwi_false)
DEFHOOK
(libgcc_floating_mode_supported_p,
"Define this to return nonzero if libgcc provides support for the \n\
floating-point mode @var{mode}, which is known to pass \n\
@code{TARGET_SCALAR_MODE_SUPPORTED_P}. The default version of this \n\
hook returns true for all of @code{SFmode}, @code{DFmode}, \n\
@code{XFmode} and @code{TFmode}, if such modes exist.",
bool, (enum machine_mode mode),
default_libgcc_floating_mode_supported_p)
/* Compute cost of moving data from a register of class FROM to one of
TO, using MODE. */
DEFHOOK

27
gcc/targhooks.c
View File

@ -424,6 +424,33 @@ default_scalar_mode_supported_p (enum machine_mode mode)
}
}
/* Return true if libgcc supports floating-point mode MODE (known to
be supported as a scalar mode). */
bool
default_libgcc_floating_mode_supported_p (enum machine_mode mode)
{
switch (mode)
{
#ifdef HAVE_SFmode
case SFmode:
#endif
#ifdef HAVE_DFmode
case DFmode:
#endif
#ifdef HAVE_XFmode
case XFmode:
#endif
#ifdef HAVE_TFmode
case TFmode:
#endif
return true;
default:
return false;
}
}
/* Make some target macros useable by target-independent code. */
bool
targhook_words_big_endian (void)

1
gcc/targhooks.h
View File

@ -67,6 +67,7 @@ extern bool default_print_operand_punct_valid_p (unsigned char);
extern tree default_mangle_assembler_name (const char *);
extern bool default_scalar_mode_supported_p (enum machine_mode);
extern bool default_libgcc_floating_mode_supported_p (enum machine_mode);
extern bool targhook_words_big_endian (void);
extern bool targhook_float_words_big_endian (void);
extern bool default_float_exceptions_rounding_supported_p (void);

15
libgcc/ChangeLog
View File

@ -1,3 +1,18 @@
2014-09-12 Joseph Myers <joseph@codesourcery.com>
* libgcc2.h (LIBGCC2_HAS_SF_MODE): Define using
__LIBGCC_HAS_SF_MODE__.
(LIBGCC2_HAS_DF_MODE): Define using __LIBGCC_HAS_DF_MODE__.
(LIBGCC2_HAS_XF_MODE): Define using __LIBGCC_HAS_XF_MODE__.
(LIBGCC2_HAS_TF_MODE): Define using __LIBGCC_HAS_TF_MODE__.
* config/libbid/bid_gcc_intrinsics.h
(LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Do not define.
(LIBGCC2_HAS_XF_MODE): Define using __LIBGCC_HAS_XF_MODE__.
(LIBGCC2_HAS_TF_MODE): Define using __LIBGCC_HAS_TF_MODE__.
* fixed-bit.h (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Do not define.
(LIBGCC2_HAS_SF_MODE): Define using __LIBGCC_HAS_SF_MODE__.
(LIBGCC2_HAS_DF_MODE): Define using __LIBGCC_HAS_DF_MODE__.
2014-09-11 Georg-Johann Lay <avr@gjlay.de>
PR target/63223

18
libgcc/config/libbid/bid_gcc_intrinsics.h
View File

@ -31,18 +31,16 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
#include "tm.h"
#include "libgcc_tm.h"
#ifndef LIBGCC2_LONG_DOUBLE_TYPE_SIZE
#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE LONG_DOUBLE_TYPE_SIZE
#ifdef __LIBGCC_HAS_XF_MODE__
#define LIBGCC2_HAS_XF_MODE 1
#else
#define LIBGCC2_HAS_XF_MODE 0
#endif
#ifndef LIBGCC2_HAS_XF_MODE
#define LIBGCC2_HAS_XF_MODE \
(BITS_PER_UNIT == 8 && LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 80)
#endif
#ifndef LIBGCC2_HAS_TF_MODE
#define LIBGCC2_HAS_TF_MODE \
(BITS_PER_UNIT == 8 && LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 128)
#ifdef __LIBGCC_HAS_TF_MODE__
#define LIBGCC2_HAS_TF_MODE 1
#else
#define LIBGCC2_HAS_TF_MODE 0
#endif
#ifndef BID_HAS_XF_MODE

19
libgcc/fixed-bit.h
View File

@ -45,19 +45,16 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
Ex: If we define FROM_QQ and TO_SI, the conversion from QQ to SI is
generated. */
#ifndef LIBGCC2_LONG_DOUBLE_TYPE_SIZE
#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE LONG_DOUBLE_TYPE_SIZE
#ifdef __LIBGCC_HAS_SF_MODE__
#define LIBGCC2_HAS_SF_MODE 1
#else
#define LIBGCC2_HAS_SF_MODE 0
#endif
#ifndef LIBGCC2_HAS_SF_MODE
#define LIBGCC2_HAS_SF_MODE (BITS_PER_UNIT == 8)
#endif
#ifndef LIBGCC2_HAS_DF_MODE
#define LIBGCC2_HAS_DF_MODE \
(BITS_PER_UNIT == 8 \
&& (__SIZEOF_DOUBLE__ * __CHAR_BIT__ == 64 \
|| LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 64))
#ifdef __LIBGCC_HAS_DF_MODE__
#define LIBGCC2_HAS_DF_MODE 1
#else
#define LIBGCC2_HAS_DF_MODE 0
#endif
typedef int QItype __attribute__ ((mode (QI)));

29
libgcc/libgcc2.h
View File

@ -38,25 +38,28 @@ extern void __eprintf (const char *, const char *, unsigned int, const char *)
#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE LONG_DOUBLE_TYPE_SIZE
#endif
#ifndef LIBGCC2_HAS_SF_MODE
#define LIBGCC2_HAS_SF_MODE (BITS_PER_UNIT == 8)
#ifdef __LIBGCC_HAS_SF_MODE__
#define LIBGCC2_HAS_SF_MODE 1
#else
#define LIBGCC2_HAS_SF_MODE 0
#endif
#ifndef LIBGCC2_HAS_DF_MODE
#define LIBGCC2_HAS_DF_MODE \
(BITS_PER_UNIT == 8 \
&& (__SIZEOF_DOUBLE__ * __CHAR_BIT__ == 64 \
|| LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 64))
#ifdef __LIBGCC_HAS_DF_MODE__
#define LIBGCC2_HAS_DF_MODE 1
#else
#define LIBGCC2_HAS_DF_MODE 0
#endif
#ifndef LIBGCC2_HAS_XF_MODE
#define LIBGCC2_HAS_XF_MODE \
(BITS_PER_UNIT == 8 && LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 80)
#ifdef __LIBGCC_HAS_XF_MODE__
#define LIBGCC2_HAS_XF_MODE 1
#else
#define LIBGCC2_HAS_XF_MODE 0
#endif
#ifndef LIBGCC2_HAS_TF_MODE
#define LIBGCC2_HAS_TF_MODE \
(BITS_PER_UNIT == 8 && LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 128)
#ifdef __LIBGCC_HAS_TF_MODE__
#define LIBGCC2_HAS_TF_MODE 1
#else
#define LIBGCC2_HAS_TF_MODE 0
#endif
#ifndef __LIBGCC_SF_MANT_DIG__