Backport:

	2005-11-22  Joseph S. Myers  <joseph@codesourcery.com>
	* config/fp-bit.c (clzusi): New function.
	(si_to_float, usi_to_float): Use it to compute proper shift.
	(usi_to_float): Preserve guard bits when shifting right.
	* libgcc2.c (__floatundixf, __floatunditf, __floatundidf,
	__floatundisf): New functions.
	* libgcc2.h (__floatundixf, __floatunditf, __floatundidf,
	__floatundisf): Declare.
	* mklibgcc.in (lib2funcs): Add _floatundidf, _floatundisf,
	_floatundixf, and _floatunditf.
	* optabs.c (expand_float): If target does not define a pattern for
	signed or unsigned conversion, use an unsigned libcall instead of
	a signed one.
	(init_optabs): Initialize ufloat_optab.

	2005-11-22  Joseph S. Myers  <joseph@codesourcery.com>
	* gcc.c-torture/execute/floatunsisf-1.c: New test.

	2005-11-25  Joseph S. Myers  <joseph@codesourcery.com>
	* config/rs6000/rs6000.c (rs6000_init_libfuncs): Use _q_utoq for
	unsigned conversions from SImode to TFmode.

	2005-11-25  Alan Modra  <amodra@bigpond.net.au>
	* config/rs6000/ppc64-fp.c (__floatunditf): New function.
	(__floatundidf, __floatundisf): Likewise.

	2005-11-25  Joseph S. Myers  <joseph@codesourcery.com>
	* config/sparc/sparc.c (sparc_init_libfuncs): Use _Q_utoq and
	_Q_ulltoq for unsigned conversions from SImode and DImode to
	TFmode.

	2005-11-25  Joseph S. Myers  <joseph@codesourcery.com>
	* gcc.dg/torture/fp-int-convert-float.c,
	gcc.dg/torture/fp-int-convert-double.c,
	gcc.dg/torture/fp-int-convert-long-double.c,
	gcc.dg/torture/fp-int-convert-timode.c,
	gcc.dg/torture/fp-int-convert-float80.c,
	gcc.dg/torture/fp-int-convert-float80-timode.c,
	gcc.dg/torture/fp-int-convert-float128.c,
	gcc.dg/torture/fp-int-convert-float128-timode.c,
	gcc.dg/torture/fp-int-convert.h: New files.

	2005-11-27  Joseph S. Myers  <joseph@codesourcery.com>
	* config/floatunsisf.c, config/floatunsidf.c,
	config/floatunsixf.c, config/floatunsitf.c: New files.
	* config/ia64/t-hpux: Add floatunsitf.c.
	* config/ia64/ia64.c (ia64_init_libfuncs): Use
	_U_Qfcnvxuf_dbl_to_quad for unsigned DImode-to-TFmode conversion.

	2005-11-28  Joseph S. Myers  <joseph@codesourcery.com>
	* config/fp-bit.h (LSHIFT): Take shift count parameter.
	* config/fp-bit.c (_fpadd_parts): Shift in one go instead of one
	bit at a time.

	2005-11-28  Joseph S. Myers  <joseph@codesourcery.com>
	* config/fp-bit.c (isnan, isinf, pack_d, unpack_d): Use
	__builtin_expect.

	2005-11-29  Joseph S. Myers  <joseph@codesourcery.com>
	* gcc.dg/torture/fp-int-convert-timode.c: XFAIL only on lp64
	targets.
	* gcc.dg/torture/fp-int-convert-float128-timode.c: XFAIL also for
	LP64 ia64.

	2005-12-04  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
	* pa/pa.c (pa_hpux_init_libfuncs): Add _U_Qfcnvxf_usgl_to_quad and
	_U_Qfcnvxf_udbl_to_quad to set of initialized libfuncs.
	* pa/quadlib.c (_U_Qfcnvxf_usgl_to_quad, _U_Qfcnvxf_udbl_to_quad): New
	functions.

	2005-12-05  Joseph S. Myers  <joseph@codesourcery.com>
	* doc/libgcc.texi (__floatunsisf, __floatunsidf, __floatunsitf,
	__floatunsixf, __floatundisf, __floatundidf, __floatunditf,
	__floatundixf, __floatuntisf, __floatuntidf, __floatuntitf,
	__floatuntixf, __powisf2, __powidf2, __powixf2, __mulsc3,
	__muldc3, __multc3, __mulxc3, __divsc3, __divdc3, __divtc3,
	__divxc3): Document.

	2005-12-15  Joseph S. Myers  <joseph@codesourcery.com>
	* libgcc2.h (SF_SIZE, DF_SIZE, XF_SIZE, TF_SIZE): Define.
	* libgcc2.c (__floatdixf, __floatundixf, __floatditf,
	__floatunditf): Use #error if type sizes don't match requirements
	of implementation.
	(__floatdisf, __floatdidf): Unify.  Possibly use XFmode or TFmode
	as wider floating-point type.  Use #error if type sizes don't
	match requirements of implementation.  Avoid overflow in computing
	Wtype_MAXp1_F * Wtype_MAXp1_F.  When special casing conversion,
	shift one more bit.  Cast 1 to DWtype or UDWtype for shifting.
	(__floatundisf, __floatundidf): Likewise.
	* config/ia64/hpux.h (XF_SIZE, TF_SIZE): Define.
	* config/ia64/ia64.c (ia64_init_libfuncs): Use
	_U_Qfcnvfxt_quad_to_quad and _U_Qfcnvxf_quad_to_quad for
	TFmode-TImode conversions.
	* doc/tm.texi (SF_SIZE, DF_SIZE, XF_SIZE, TF_SIZE): Document.

	2005-12-15  Joseph S. Myers  <joseph@codesourcery.com>
	* gcc.dg/torture/fp-int-convert-timode.c: Only XFAIL for LP64 IA64
	HP-UX.

	2005-12-21  Joseph S. Myers  <joseph@codesourcery.com>
	* config/arm/t-arm-elf (LIB1ASMFUNCS): Add _floatundidf and
	_floatundisf.

	2005-12-28  Alan Modra  <amodra@bigpond.net.au>
	* gcc.dg/torture/fp-int-convert-timode.c: Don't test IBM
	Extended Double long doubles or repeat tests when long double is
	the same size as double.

	2006-01-05  Richard Earnshaw  <rearnsha@arm.com>
	* arm/t-netbsd (LIB2FUNCS_EXTRA): Define.

	2006-01-20  Alan Modra  <amodra@bigpond.net.au>
	* libgcc2.c (__floatdisf, __floatdidf): Don't use IBM Extended
	Double TFmode.
	(__floatundisf, __floatundidf): Likewise.
	* libgcc2.h (IS_IBM_EXTENDED): Define.

	2006-04-18  Joseph S. Myers  <joseph@codesourcery.com>
	* config/soft-fp: New directory.  From glibc.
	* config/soft-fp/t-softfp: New.
	* config/soft-fp/README: New.
	* mklibgcc.in: Handle LIB2FUNCS_EXCLUDE.
	* Makefile.in (LIB2FUNCS_EXCLUDE, SFP_MACHINE): New.
	(libgcc.mk): Pass LIB2FUNCS_EXCLUDE.
	(LIBGCC_DEPS): Add $(SFP_MACHINE).
	* config.gcc: Use rs6000/t-fprules-fpbit or
	rs6000/t-fprules-softfp and soft-fp/t-softfp together with
	rs6000/t-fprules.
	* config/rs6000/sfp-machine.h: New.  Based on glibc.
	* config/rs6000/t-fprules-fpbit, config/rs6000/t-fprules-softfp:
	New.
	* config/rs6000/t-fprules: Remove fp-bit rules.
	* config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Use +=.
	* config/rs6000/t-linux64: Likewise.  Remove duplicates from
	LIB2FUNCS_EXTRA.  Remove fp-bit rules.
	(softfp_wrap_start, softfp_wrap_end): New.


git-svn-id: https://gcc.gnu.org/svn/gcc/branches/csl/sourcerygxx-4_1@117624 138bc75d-0d04-0410-961f-82ee72b054a4

2 files changed, 62 insertions, 1 deletions

diff --git a/gcc/doc/libgcc.texi b/gcc/doc/libgcc.texi
index 8d71f957d7d..c97bd8b7497 100644
--- a/gcc/doc/libgcc.texi
+++ b/gcc/doc/libgcc.texi
@@ -1,4 +1,4 @@
-@c Copyright (C) 2003, 2004 Free Software Foundation, Inc.
+@c Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc.
 @c This is part of the GCC manual.
 @c For copying conditions, see the file gcc.texi.
 @c Contributed by Aldy Hernandez <aldy@quesejoda.com>
@@ -356,6 +356,27 @@ These functions convert @var{i}, a signed long, to floating point.
 These functions convert @var{i}, a signed long long, to floating point.
 @end deftypefn
 
+@deftypefn {Runtime Function} float __floatunsisf (unsigned int @var{i})
+@deftypefnx {Runtime Function} double __floatunsidf (unsigned int @var{i})
+@deftypefnx {Runtime Function} {long double} __floatunsitf (unsigned int @var{i})
+@deftypefnx {Runtime Function} {long double} __floatunsixf (unsigned int @var{i})
+These functions convert @var{i}, an unsigned integer, to floating point.
+@end deftypefn
+
+@deftypefn {Runtime Function} float __floatundisf (unsigned long @var{i})
+@deftypefnx {Runtime Function} double __floatundidf (unsigned long @var{i})
+@deftypefnx {Runtime Function} {long double} __floatunditf (unsigned long @var{i})
+@deftypefnx {Runtime Function} {long double} __floatundixf (unsigned long @var{i})
+These functions convert @var{i}, an unsigned long, to floating point.
+@end deftypefn
+
+@deftypefn {Runtime Function} float __floatuntisf (unsigned long long @var{i})
+@deftypefnx {Runtime Function} double __floatuntidf (unsigned long long @var{i})
+@deftypefnx {Runtime Function} {long double} __floatuntitf (unsigned long long @var{i})
+@deftypefnx {Runtime Function} {long double} __floatuntixf (unsigned long long @var{i})
+These functions convert @var{i}, an unsigned long long, to floating point.
+@end deftypefn
+
 @subsection Comparison functions
 
 There are two sets of basic comparison functions.
@@ -438,6 +459,32 @@ These functions return a value greater than zero if neither argument
 is NaN, and @var{a} is strictly greater than @var{b}.
 @end deftypefn
 
+@subsection Other floating-point functions
+
+@deftypefn {Runtime Function} float __powisf2 (float @var{a}, int @var{b})
+@deftypefnx {Runtime Function} double __powidf2 (double @var{a}, int @var{b})
+@deftypefnx {Runtime Function} {long double} __powitf2 (long double @var{a}, int @var{b})
+@deftypefnx {Runtime Function} {long double} __powixf2 (long double @var{a}, int @var{b})
+These functions convert raise @var{a} to the power @var{b}.
+@end deftypefn
+
+@deftypefn {Runtime Function} {complex float} __mulsc3 (float @var{a}, float @var{b}, float @var{c}, float @var{d})
+@deftypefnx {Runtime Function} {complex double} __muldc3 (double @var{a}, double @var{b}, double @var{c}, double @var{d})
+@deftypefnx {Runtime Function} {complex long double} __multc3 (long double @var{a}, long double @var{b}, long double @var{c}, long double @var{d})
+@deftypefnx {Runtime Function} {complex long double} __mulxc3 (long double @var{a}, long double @var{b}, long double @var{c}, long double @var{d})
+These functions return the product of @math{@var{a} + i@var{b}} and
+@math{@var{c} + i@var{d}}, following the rules of C99 Annex G@.
+@end deftypefn
+
+@deftypefn {Runtime Function} {complex float} __divsc3 (float @var{a}, float @var{b}, float @var{c}, float @var{d})
+@deftypefnx {Runtime Function} {complex double} __divdc3 (double @var{a}, double @var{b}, double @var{c}, double @var{d})
+@deftypefnx {Runtime Function} {complex long double} __divtc3 (long double @var{a}, long double @var{b}, long double @var{c}, long double @var{d})
+@deftypefnx {Runtime Function} {complex long double} __divxc3 (long double @var{a}, long double @var{b}, long double @var{c}, long double @var{d})
+These functions return the quotient of @math{@var{a} + i@var{b}} and
+@math{@var{c} + i@var{d}} (i.e., @math{(@var{a} + i@var{b}) / (@var{c}
++ i@var{d})}), following the rules of C99 Annex G@.
+@end deftypefn
+
 @node Exception handling routines
 @section Language-independent routines for exception handling
 
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi
index 0f6a9f90beb..32f93fa5f0b 100644
--- a/gcc/doc/tm.texi
+++ b/gcc/doc/tm.texi
@@ -1556,6 +1556,20 @@ 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 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{LIBGCC2_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