2009-02-19 Basile Starynkevitch <basile@starynkevitch.net>

	MELT branch merged with trunk r144284



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/melt-branch@144287 138bc75d-0d04-0410-961f-82ee72b054a4

10 files changed, 142 insertions, 2 deletions

diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index ea7a9156196..b845937b30b 100644
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,3 +1,23 @@
+2009-02-12  Uros Bizjak  <ubizjak@gmail.com>
+
+	* config.host (ia64*-*-linux*): Add t-softfp to tmake_file.
+	* config/ia64/tf-signs.c (__copysigntf3, __fabstf2): Prototype.
+
+2009-02-12  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* config.host (ia64*-*-linux*): Add ia64/t-fprules-softfp and
+	ia64/t-softfp-compat to tmake_file.
+
+	* Makefile.in (gen-hide-list): Ignore .*_compat and .*@.*.
+
+	* config/ia64/__divxf3.asm: New.
+	* config/ia64/_fixtfdi.asm: Likewise.
+	* config/ia64/_fixunstfdi.asm: Likewise.
+	* config/ia64/_floatditf.asm: Likewise.
+	* config/ia64/t-fprules-softfp: Likewise.
+	* config/ia64/t-softfp-compat: Likewise.
+	* config/ia64/tf-signs.c: Likewise.
+
 2009-01-18  Ben Elliston  <bje@au.ibm.com>
 
 	* config/i386/32/tf-signs.c (__copysigntf3, __fabstf2): Prototype.
diff --git a/libgcc/Makefile.in b/libgcc/Makefile.in
index 5718a501830..c9c36d5fa16 100644
--- a/libgcc/Makefile.in
+++ b/libgcc/Makefile.in
@@ -265,7 +265,9 @@ ASM_HIDDEN_OP = @asm_hidden_op@
 
 define gen-hide-list
 $(NM) -pg $< | \
-  $(AWK) 'NF == 3 && $$2 !~ /^[UN]$$/ { print "\t$(ASM_HIDDEN_OP)", $$3 }' > $@T
+  $(AWK) 'NF == 3 && $$2 !~ /^[UN]$$/ && $$3 !~ /.*_compat/ \
+         && $$3 !~ /.*@.*/ \
+	 { print "\t$(ASM_HIDDEN_OP)", $$3 }' > $@T
 mv -f $@T $@
 endef
 else
diff --git a/libgcc/config.host b/libgcc/config.host
index 655ef953ce8..5352363fc72 100644
--- a/libgcc/config.host
+++ b/libgcc/config.host
@@ -350,7 +350,7 @@ ia64*-*-freebsd*)
 	;;
 ia64*-*-linux*)
 	extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o crtfastmath.o"
-	tmake_file="ia64/t-ia64"
+	tmake_file="ia64/t-ia64 t-softfp ia64/t-fprules-softfp ia64/t-softfp-compat"
 	;;
 ia64*-*-hpux*)
 	;;
diff --git a/libgcc/config/ia64/__divxf3.asm b/libgcc/config/ia64/__divxf3.asm
new file mode 100644
index 00000000000..f741bdaf9bc
--- /dev/null
+++ b/libgcc/config/ia64/__divxf3.asm
@@ -0,0 +1,11 @@
+#ifdef SHARED
+#define __divtf3 __divtf3_compat
+#endif
+
+#define L__divxf3
+#include "config/ia64/lib1funcs.asm"
+
+#ifdef SHARED
+#undef __divtf3
+.symver __divtf3_compat, __divtf3@GCC_3.0
+#endif
diff --git a/libgcc/config/ia64/_fixtfdi.asm b/libgcc/config/ia64/_fixtfdi.asm
new file mode 100644
index 00000000000..4d13c808c51
--- /dev/null
+++ b/libgcc/config/ia64/_fixtfdi.asm
@@ -0,0 +1,11 @@
+#ifdef SHARED
+#define __fixtfti __fixtfti_compat
+#endif
+
+#define L_fixtfdi
+#include "config/ia64/lib1funcs.asm"
+
+#ifdef SHARED
+#undef __fixtfti
+.symver __fixtfti_compat, __fixtfti@GCC_3.0
+#endif
diff --git a/libgcc/config/ia64/_fixunstfdi.asm b/libgcc/config/ia64/_fixunstfdi.asm
new file mode 100644
index 00000000000..b722d9e90dc
--- /dev/null
+++ b/libgcc/config/ia64/_fixunstfdi.asm
@@ -0,0 +1,11 @@
+#ifdef SHARED
+#define __fixunstfti __fixunstfti_compat
+#endif
+
+#define L_fixunstfdi
+#include "config/ia64/lib1funcs.asm"
+
+#ifdef SHARED
+#undef __fixunstfti
+.symver __fixunstfti_compat, __fixunstfti@GCC_3.0
+#endif
diff --git a/libgcc/config/ia64/_floatditf.asm b/libgcc/config/ia64/_floatditf.asm
new file mode 100644
index 00000000000..21d77028176
--- /dev/null
+++ b/libgcc/config/ia64/_floatditf.asm
@@ -0,0 +1,11 @@
+#ifdef SHARED
+#define __floattitf __floattitf_compat
+#endif
+
+#define L_floatditf
+#include "config/ia64/lib1funcs.asm"
+
+#ifdef SHARED
+#undef __floattitf
+.symver __floattitf_compat, __floattitf@GCC_3.0
+#endif
diff --git a/libgcc/config/ia64/t-fprules-softfp b/libgcc/config/ia64/t-fprules-softfp
new file mode 100644
index 00000000000..90acc376ec9
--- /dev/null
+++ b/libgcc/config/ia64/t-fprules-softfp
@@ -0,0 +1,2 @@
+# Provide fallbacks for __builtin_copysignq and __builtin_fabsq.
+LIB2ADD += $(srcdir)/config/ia64/tf-signs.c
diff --git a/libgcc/config/ia64/t-softfp-compat b/libgcc/config/ia64/t-softfp-compat
new file mode 100644
index 00000000000..d3dad68c48f
--- /dev/null
+++ b/libgcc/config/ia64/t-softfp-compat
@@ -0,0 +1,7 @@
+# Filter out the following TImode functions and provide backward binary
+# compatibility.
+# Replace __dvxf3 _fixtfdi _fixunstfdi _floatditf
+libgcc1-tf-functions = __divxf3  _fixtfdi _fixunstfdi _floatditf
+LIB1ASMFUNCS := $(filter-out $(libgcc1-tf-functions), $(LIB1ASMFUNCS))
+libgcc1-tf-compats = $(addsuffix .asm, $(libgcc1-tf-functions))
+LIB2ADD += $(addprefix $(srcdir)/config/ia64/, $(libgcc1-tf-compats))
diff --git a/libgcc/config/ia64/tf-signs.c b/libgcc/config/ia64/tf-signs.c
new file mode 100644
index 00000000000..8035740ab01
--- /dev/null
+++ b/libgcc/config/ia64/tf-signs.c
@@ -0,0 +1,65 @@
+/* Copyright (C) 2008 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 2, or (at your option) any later
+version.
+
+In addition to the permissions in the GNU General Public License, the
+Free Software Foundation gives you unlimited permission to link the
+compiled version of this file into combinations with other programs,
+and to distribute those combinations without any restriction coming
+from the use of this file.  (The General Public License restrictions
+do apply in other respects; for example, they cover modification of
+the file, and distribution when not linked into a combine
+executable.)
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING.  If not, write to the Free
+Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301, USA.  */
+
+union _FP_UNION_Q
+{
+   __float128 flt;
+   struct 
+   {
+      unsigned long frac1 : 64;
+      unsigned long frac0 : 48;
+      unsigned exp : 15;
+      unsigned sign : 1;
+   } bits __attribute__((packed));
+};
+
+__float128 __copysigntf3 (__float128, __float128);
+__float128 __fabstf2 (__float128);
+
+__float128
+__copysigntf3 (__float128 a, __float128 b)
+{
+  union _FP_UNION_Q A, B;
+
+  A.flt = a;
+  B.flt = b;
+  A.bits.sign = B.bits.sign;
+
+  return A.flt;
+}
+
+__float128
+__fabstf2 (__float128 a)
+{
+  union _FP_UNION_Q A;
+
+  A.flt = a;
+  A.bits.sign = 0;
+
+  return A.flt;
+}