gcc:

        * config.gcc (epiphany-*-*): New architecture.
        (epiphany-*-elf): New configuration.
        * config/epiphany, common/config/epiphany : New directories.
        * doc/extend.texi (disinterrupt attribute): Add Epiphany.
        (interrupt attribute): Add Epiphany.
        (long_call, short_call attribute): Add Epiphany.
        * doc/invoke.texi (Options): Add Epiphany options.
        * doc/md.texi (Machine Constraints): Add Epiphany constraints.
        * doc/install.texi (Options specification):
        Add --with-stack-offset=@var{num} description.
        (host/target specific issues): Add epiphany-*-elf.
        * doc/contrib.texi (Contributors): Mention Epiphany port.
gcc/testsuite:
        * gcc.c-torture/execute/ieee/mul-subnormal-single-1.x:
        Disable test on Epiphany.
        * gcc.c-torture/execute/20101011-1.c: Disable test on Epiphany.
        * gcc.dg/stack-usage-1.c [__epiphany__] (SIZE): Define.
        * gcc.dg/pragma-pack-3.c: Disable test on Epiphany.
        * g++.dg/parse/pragma3.C: Likewise.
        * stackalign/builtin-apply-2.c (STACK_ARGUMENTS_SIZE): Define.
        (bar): Use it.
        * gcc.dg/weak/typeof-2.c [epiphany-*-*]: Add option -mshort-calls.
        * gcc.dg/tls/thr-cse-1.c: Likewise.
        * g++.dg/opt/devirt2.C: Likewise.
        * gcc.dg/20020312-2.c [epiphany-*-*] (PIC_REG): Define.
        * gcc.dg/builtin-apply2.c [__epiphany__]: (STACK_ARGUMENTS_SIZE): 20.
        * gcc.target/epiphany: New directory.
libgcc:
        * config.host (epiphany-*-elf*): New configuration.
        * config/epiphany: New Directory.
contrib:
        * contrib-list.mk: Add Epiphany configurations.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@181016 138bc75d-0d04-0410-961f-82ee72b054a4

30 files changed, 1821 insertions, 0 deletions

diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index 0a94c951341..ae5e4636c64 100644
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,3 +1,8 @@
+2011-11-05  Joern Rennecke  <joern.rennecke@embecosm.com>
+
+	* config.host (epiphany-*-elf*): New configuration.
+	* config/epiphany: New Directory.
+
 2011-11-05  Ralf Corsépius  <ralf.corsepius@rtems.org>
 
 	* config.host (avr-*-rtems*): Add config/avr/t-rtems.
diff --git a/libgcc/config.host b/libgcc/config.host
index 183417981f7..36297feb498 100644
--- a/libgcc/config.host
+++ b/libgcc/config.host
@@ -433,6 +433,10 @@ cris-*-elf)
 cris-*-linux* | crisv32-*-linux*)
 	tmake_file="$tmake_file cris/t-cris t-fdpbit cris/t-linux"
 	;;
+epiphany-*-elf*)
+	tmake_file="epiphany/t-epiphany t-fdpbit epiphany/t-custom-eqsf"
+	extra_parts="$extra_parts crti.o crtint.o crtrunc.o crtm1reg-r43.o crtm1reg-r63.o crtn.o"
+	;;
 fr30-*-elf)
 	tmake_file="$tmake_file fr30/t-fr30 t-fdpbit"
 	extra_parts="$extra_parts crti.o crtn.o"
diff --git a/libgcc/config/epiphany/crti.S b/libgcc/config/epiphany/crti.S
new file mode 100644
index 00000000000..527d9264775
--- /dev/null
+++ b/libgcc/config/epiphany/crti.S
@@ -0,0 +1,34 @@
+# Start .init and .fini sections.
+# Copyright (C) 2010, 2011 Free Software Foundation, Inc.
+# Contributed by Embecosm on behalf of Adapteva, Inc.
+#
+# This file 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 3, or (at your option)
+# any later version.
+#
+# 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.
+#
+# Under Section 7 of GPL version 3, you are granted additional
+# permissions described in the GCC Runtime Library Exception, version
+# 3.1, as published by the Free Software Foundation.
+#
+# You should have received a copy of the GNU General Public License and
+# a copy of the GCC Runtime Library Exception along with this program;
+# see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+# <http://www.gnu.org/licenses/>.
+
+	.section .init
+	.global	init
+	.balign 2
+init:
+	str lr,[sp],-4
+
+	.section .fini
+	.global	fini
+	.balign 2
+fini:
+	str lr,[sp],-4
diff --git a/libgcc/config/epiphany/crtint.S b/libgcc/config/epiphany/crtint.S
new file mode 100644
index 00000000000..e66b34e0652
--- /dev/null
+++ b/libgcc/config/epiphany/crtint.S
@@ -0,0 +1,27 @@
+# initialize config for -mfp-mode=int
+# Copyright (C) 2011 Free Software Foundation, Inc.
+# Contributed by Embecosm on behalf of Adapteva, Inc.
+#
+# This file 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 3, or (at your option)
+# any later version.
+#
+# 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.
+#
+# Under Section 7 of GPL version 3, you are granted additional
+# permissions described in the GCC Runtime Library Exception, version
+# 3.1, as published by the Free Software Foundation.
+#
+# You should have received a copy of the GNU General Public License and
+# a copy of the GCC Runtime Library Exception along with this program;
+# see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+# <http://www.gnu.org/licenses/>.
+
+	.section .init
+	mov r0, %low(#524288)
+	movt r0, %high(#524288)
+	movts config,r0
diff --git a/libgcc/config/epiphany/crtm1reg-r43.S b/libgcc/config/epiphany/crtm1reg-r43.S
new file mode 100644
index 00000000000..02ef9f2025c
--- /dev/null
+++ b/libgcc/config/epiphany/crtm1reg-r43.S
@@ -0,0 +1,26 @@
+# initialize config for -m1reg-r43
+# Copyright (C) 2011 Free Software Foundation, Inc.
+# Contributed by Embecosm on behalf of Adapteva, Inc.
+#
+# This file 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 3, or (at your option)
+# any later version.
+#
+# 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.
+#
+# Under Section 7 of GPL version 3, you are granted additional
+# permissions described in the GCC Runtime Library Exception, version
+# 3.1, as published by the Free Software Foundation.
+#
+# You should have received a copy of the GNU General Public License and
+# a copy of the GCC Runtime Library Exception along with this program;
+# see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+# <http://www.gnu.org/licenses/>.
+
+	.section .init
+	mov r0, 0
+	sub r43,r0,1
diff --git a/libgcc/config/epiphany/crtm1reg-r63.S b/libgcc/config/epiphany/crtm1reg-r63.S
new file mode 100644
index 00000000000..8bd9fb605cb
--- /dev/null
+++ b/libgcc/config/epiphany/crtm1reg-r63.S
@@ -0,0 +1,26 @@
+# initialize config for -m1reg-r63
+# Copyright (C) 2011 Free Software Foundation, Inc.
+# Contributed by Embecosm on behalf of Adapteva, Inc.
+#
+# This file 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 3, or (at your option)
+# any later version.
+#
+# 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.
+#
+# Under Section 7 of GPL version 3, you are granted additional
+# permissions described in the GCC Runtime Library Exception, version
+# 3.1, as published by the Free Software Foundation.
+#
+# You should have received a copy of the GNU General Public License and
+# a copy of the GCC Runtime Library Exception along with this program;
+# see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+# <http://www.gnu.org/licenses/>.
+
+	.section .init
+	mov r0, 0
+	sub r63,r0,1
diff --git a/libgcc/config/epiphany/crtn.S b/libgcc/config/epiphany/crtn.S
new file mode 100644
index 00000000000..2c326bf7b96
--- /dev/null
+++ b/libgcc/config/epiphany/crtn.S
@@ -0,0 +1,32 @@
+# End .init and .fini sections.
+# Copyright (C) 2010, 2011 Free Software Foundation, Inc.
+# Contributed by Embecosm on behalf of Adapteva, Inc.
+#
+# This file 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 3, or (at your option)
+# any later version.
+#
+# 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.
+#
+# Under Section 7 of GPL version 3, you are granted additional
+# permissions described in the GCC Runtime Library Exception, version
+# 3.1, as published by the Free Software Foundation.
+#
+# You should have received a copy of the GNU General Public License and
+# a copy of the GCC Runtime Library Exception along with this program;
+# see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+# <http://www.gnu.org/licenses/>.
+
+	.section .init
+	ldr lr,[sp,4]
+	add sp,sp,16
+	jr lr
+
+	.section .fini
+	ldr lr,[sp,4]
+	add sp,sp,16
+	jr lr
diff --git a/libgcc/config/epiphany/crtrunc.S b/libgcc/config/epiphany/crtrunc.S
new file mode 100644
index 00000000000..37b0507b491
--- /dev/null
+++ b/libgcc/config/epiphany/crtrunc.S
@@ -0,0 +1,26 @@
+# initialize config for -mfp-mode=truncate
+# Copyright (C) 2011 Free Software Foundation, Inc.
+# Contributed by Embecosm on behalf of Adapteva, Inc.
+#
+# This file 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 3, or (at your option)
+# any later version.
+#
+# 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.
+#
+# Under Section 7 of GPL version 3, you are granted additional
+# permissions described in the GCC Runtime Library Exception, version
+# 3.1, as published by the Free Software Foundation.
+#
+# You should have received a copy of the GNU General Public License and
+# a copy of the GCC Runtime Library Exception along with this program;
+# see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+# <http://www.gnu.org/licenses/>.
+
+	.section .init
+	mov r0, 1
+	movts config,r0
diff --git a/libgcc/config/epiphany/divsi3-float.S b/libgcc/config/epiphany/divsi3-float.S
new file mode 100644
index 00000000000..31a0506946e
--- /dev/null
+++ b/libgcc/config/epiphany/divsi3-float.S
@@ -0,0 +1,77 @@
+/* Signed 32 bit division optimized for Epiphany.
+   Copyright (C) 2009, 2011 Free Software Foundation, Inc.
+   Contributed by Embecosm on behalf of Adapteva, Inc.
+
+This file is part of GCC.
+
+This file 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 3, or (at your option) any
+later version.
+
+This file 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.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "epiphany-asm.h"
+
+	FSTAB (__divsi3,T_UINT)
+	.global SYM(__divsi3)
+	.balign 4
+	HIDDEN_FUNC(__divsi3)
+SYM(__divsi3):
+	float TMP2,r0
+	  mov TMP4,0
+	float TMP1,r1
+	  sub TMP0,TMP4,r0
+	beq .Lret_r0
+	movgt r0,TMP0
+	sub TMP0,TMP4,r1
+	movgt r1,TMP0
+	mov TMP0,1
+	sub TMP2,TMP2,TMP1
+	asr TMP3,TMP2,31 ; save sign
+	lsl TMP2,TMP2,1
+	blt .Lret0
+	sub TMP1,TMP2,1 ; rounding compensation, avoid overflow
+	movgte TMP2,TMP1
+	lsr TMP2,TMP2,24
+	lsl r1,r1,TMP2
+	lsl TMP0,TMP0,TMP2
+	sub TMP1,r0,r1
+	movgteu r0,TMP1
+	movgteu TMP4,TMP0
+	lsl TMP5,TMP0,1
+	sub TMP1,r0,r1
+	movgteu r0,TMP1
+	movgteu TMP4,TMP5
+	sub TMP1,r1,1
+	mov r1,%low(.L0step)
+	movt r1,%high(.L0step)
+	lsl TMP2,TMP2,3
+	sub r1,r1,TMP2
+	jr r1
+	.rep 30
+	lsl r0,r0,1
+	sub.l r1,r0,TMP1
+	movgteu r0,r1
+	.endr
+.L0step:sub r1,TMP0,1 ; mask result bits from steps ...
+	and r0,r0,r1
+	orr r0,r0,TMP4 ; ... and combine with first bit.
+	eor r0,r0,TMP3 ; restore sign
+	sub r0,r0,TMP3
+.Lret_r0:rts
+.Lret0:	mov r0,0
+	rts
+	ENDFUNC(__divsi3)
diff --git a/libgcc/config/epiphany/divsi3.S b/libgcc/config/epiphany/divsi3.S
new file mode 100644
index 00000000000..bdb2860dc0d
--- /dev/null
+++ b/libgcc/config/epiphany/divsi3.S
@@ -0,0 +1,92 @@
+/* Signed 32 bit division optimized for Epiphany.
+   Copyright (C) 2009 Free Software Foundation, Inc.
+   Contributed by Embecosm on behalf of Adapteva, Inc.
+
+This file is part of GCC.
+
+This file 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 3, or (at your option) any
+later version.
+
+This file 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.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "epiphany-asm.h"
+
+	FSTAB (__divsi3,T_INT)
+	.global SYM(__divsi3)
+	.balign 4
+	HIDDEN_FUNC(__divsi3)
+SYM(__divsi3):
+	mov r12,0
+	sub r2,r12,r0
+	movlt r2,r0
+	sub r3,r12,r1
+	movlt r3,r1
+	sub r19,r2,r3
+	bltu .Lret0
+	movt r12,0x4000
+	orr r16,r2,r12
+	orr r18,r3,r12
+	 fsub r16,r16,r12
+	fsub r18,r18,r12
+	 movt r12,0x4b80
+	lsr r19,r3,23
+	lsr r17,r2,23
+	movt r17,0x4b80
+	fsub r17,r17,r12
+	 movt r19,0x4b80
+	fsub r19,r19,r12
+	 mov r12,%low(.L0step)
+	movt r12,%high(.L0step)
+	mov r20,0
+	mov r21,1
+	movne r16,r17
+	lsr r17,r3,23
+	movne r18,r19
+	eor r1,r1,r0 ; save sign
+	asr r19,r1,31
+	lsr r1,r16,23
+	lsr r0,r18,23
+	sub r1,r1,r0 ; calculate bit number difference.
+	lsl r3,r3,r1
+	lsr r16,r3,1
+	lsl r0,r21,r1
+	lsl r1,r1,3
+	sub r12,r12,r1
+	sub r3,r2,r3
+	movgteu r2,r3
+	movgteu r20,r0
+	lsr r0,r0,1
+	add r17,r0,r20
+	sub r3,r2,r16
+	movgteu r2,r3
+	movgteu r20,r17
+	sub r16,r16,1
+	jr r12
+	.rep 30
+	lsl r2,r2,1
+	sub r3,r2,r16
+	movgteu r2,r3
+	.endr
+	sub r0,r0,1 ; mask result bits from steps ...
+	and r0,r0,r2
+	orr r20,r0,r20 ; ... and combine with first bit.
+.L0step:eor r0,r20,r19 ; restore sign
+	sub r0,r0,r19
+	rts
+.Lret0:	mov r0,0
+	rts
+	ENDFUNC(__divsi3)
diff --git a/libgcc/config/epiphany/divsi3.c b/libgcc/config/epiphany/divsi3.c
new file mode 100644
index 00000000000..c15aaf3eef6
--- /dev/null
+++ b/libgcc/config/epiphany/divsi3.c
@@ -0,0 +1,120 @@
+/* Generic signed 32 bit division implementation.
+   Copyright (C) 2009 Free Software Foundation, Inc.
+   Contributed by Embecosm on behalf of Adapteva, Inc.
+
+This file is part of GCC.
+
+This file 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 3, or (at your option) any
+later version.
+
+This file 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.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+typedef union { unsigned int i; float f; } fu;
+
+/* Although the semantics of the function ask for signed / unsigned inputs,
+   for the actual implementation we use unsigned numbers.  */
+unsigned int __divsi3 (unsigned int a, unsigned int b);
+
+unsigned int
+__divsi3 (unsigned int a, unsigned int b)
+{
+  unsigned int sign = (int) (a ^ b) >> 31;
+  unsigned int d, t, s0, s1, s2, r0, r1;
+  fu u0, u1, u2, u1b, u2b;
+
+  a = abs (a);
+  b = abs (b);
+
+  if (b > a)
+    return 0;
+
+  /* Compute difference in number of bits in S0.  */
+  u0.i = 0x40000000;
+  u1b.i = u2b.i = u0.i;
+  u1.i = a;
+  u2.i = b;
+  u1.i = a | u0.i;
+  t = 0x4b800000 | ((a >> 23) & 0xffff);
+  if (a >> 23)
+    {
+      u1.i = t;
+      u1b.i = 0x4b800000;
+    }
+  u2.i = b | u0.i;
+  t = 0x4b800000 | ((b >> 23) & 0xffff);
+  if (b >> 23)
+    {
+      u2.i = t;
+      u2b.i = 0x4b800000;
+    }
+  u1.f = u1.f - u1b.f;
+  u2.f = u2.f - u2b.f;
+  s1 = u1.i >> 23;
+  s2 = u2.i >> 23;
+  s0 = s1 - s2;
+
+  b <<= s0;
+  d = b - 1;
+
+  r0 = 1 << s0;
+  r1 = 0;
+  t = a - b;
+  if (t <= a)
+    {
+      a = t;
+      r1 = r0;
+    }
+
+#define STEP(n) case n: a += a; t = a - d; if (t <= a) a = t;
+  switch (s0)
+    {
+    STEP (31)
+    STEP (30)
+    STEP (29)
+    STEP (28)
+    STEP (27)
+    STEP (26)
+    STEP (25)
+    STEP (24)
+    STEP (23)
+    STEP (22)
+    STEP (21)
+    STEP (20)
+    STEP (19)
+    STEP (18)
+    STEP (17)
+    STEP (16)
+    STEP (15)
+    STEP (14)
+    STEP (13)
+    STEP (12)
+    STEP (11)
+    STEP (10)
+    STEP (9)
+    STEP (8)
+    STEP (7)
+    STEP (6)
+    STEP (5)
+    STEP (4)
+    STEP (3)
+    STEP (2)
+    STEP (1)
+    case 0: ;
+    }
+  r0 = r1 | (r0-1 & a);
+  return (r0 ^ sign) - sign;
+}
diff --git a/libgcc/config/epiphany/epiphany-asm.h b/libgcc/config/epiphany/epiphany-asm.h
new file mode 100644
index 00000000000..e86f7efd894
--- /dev/null
+++ b/libgcc/config/epiphany/epiphany-asm.h
@@ -0,0 +1,53 @@
+/* Copyright (C) 1995, 1997, 2007, 2008, 2009, 2011
+   Free Software Foundation, Inc.
+   Contributed by Embecosm on behalf of Adapteva, 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 3, or (at your option) any later
+version.
+
+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.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+/* ANSI concatenation macros.  */
+
+#define CONCAT1(a, b) CONCAT2(a, b)
+#define CONCAT2(a, b) a ## b
+#define STRINGIFY2(a, b) STRINGIFY(a##b)
+#define STRINGIFY(a) #a
+
+/* Use the right prefix for global labels.  */
+
+#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x)
+
+#define FSTAB(X,T)	.stabs	STRINGIFY2(X##:F,T),36,0,__LINE__,SYM(X)
+#define FUNC(X)		.type SYM(X),@function
+#define HIDDEN_FUNC(X)	FUNC(X)` .hidden SYM(X)
+#define ENDFUNC0(X)	CONCAT1(.Lfe_,X): .size X,CONCAT1(.Lfe_,X)-X
+#define ENDFUNC(X)	ENDFUNC0(SYM(X))
+
+#define TMP0	r12
+#define TMP1	r16
+#define TMP2	r17
+#define TMP3	r18
+#define TMP4	r19
+#define TMP5	r20
+
+#define T_INT (0,1)
+	.stabs	"int:t(0,1)=r(0,1);-2147483648;2147483647;",128,0,1,0
+#define T_UINT (0,2)
+	.stabs	"unsigned int:t(0,2)=r(0,2);0;037777777777;",128,0,1,0
diff --git a/libgcc/config/epiphany/ieee-754/eqsf2.S b/libgcc/config/epiphany/ieee-754/eqsf2.S
new file mode 100644
index 00000000000..3c04e2a94fc
--- /dev/null
+++ b/libgcc/config/epiphany/ieee-754/eqsf2.S
@@ -0,0 +1,50 @@
+/* Copyright (C) 2008, 2009 Free Software Foundation, Inc.
+   Contributed by Embecosm on behalf of Adapteva, 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 3, or (at your option) any later
+version.
+
+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.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "../epiphany-asm.h"
+
+	/* Assumption: NaNs have all bits 10..30 and one of bit 0..9 set.  */
+
+	FSTAB (__eqsf2,T_INT)
+	.global SYM(__eqsf2)
+	.balign 4
+	HIDDEN_FUNC(__eqsf2)
+SYM(__eqsf2):
+	sub	TMP0,r0,r1
+	beq	.Lno_bdiff
+	orr	TMP0,r0,r1
+	add	TMP0,TMP0,TMP0
+	rts
+.Lno_bdiff:
+#ifndef FLOAT_FORMAT_MOTOROLA
+	mov	TMP0,0xffff
+	movt	TMP0,0x7f
+	add	TMP0,TMP0,r0
+#else
+	add	TMP0,r0,0x3ff
+#endif
+	eor	TMP0,TMP0,r0
+	lsr	TMP0,TMP0,31
+	rts
+	ENDFUNC(__eqsf2)
diff --git a/libgcc/config/epiphany/ieee-754/fast_div.S b/libgcc/config/epiphany/ieee-754/fast_div.S
new file mode 100644
index 00000000000..a6cf748c620
--- /dev/null
+++ b/libgcc/config/epiphany/ieee-754/fast_div.S
@@ -0,0 +1,124 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   Contributed by Embecosm on behalf of Adapteva, 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 3, or (at your option) any later
+version.
+
+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.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "../epiphany-asm.h"
+
+.section _fast_div_text,"a",@progbits;
+  .balign 8;
+_fast_div_table:
+.word 0x007fffff//   mantissa mask
+.word 0x40257ebb//   hold constant a = 2.58586
+
+.word 0x3f000000//   hold constant 126 shifted to bits [30:23]
+.word 0xc0ba2e88//   hold constant b = -5.81818
+
+.word 0x4087c1e8//   hold constant c = 4.24242
+.word 0x40000000//  to hold constant 2 for Newton-Raphson iterations
+
+ .global SYM(__fast_recipsf2)
+ FUNC(__fast_recipsf2)
+SYM(__fast_recipsf2):
+
+//###################
+//# input operands:
+//###################
+// Divisor
+//R0
+// Function address (used with negative offsets to read _fast_div_table)
+//R1
+/* Scratch registers:  two single (TMP0/TMP5) and two pairs.  */
+#define P0L TMP1
+#define P0H TMP2
+#define P1L TMP3
+#define P1H TMP4
+
+//#########################################
+//# Constants to be used in the algorithm
+//#########################################
+ldrd P0L , [ R1 , -3 ]
+
+ldrd P1L , [ R1 , -2 ]
+
+
+
+//#############################################################################
+//#                       The Algorithm
+//#
+//# Operation: C=A/B
+//# stage 1 - find the reciprocal 1/B according to the following scheme:
+//#  B = (2^E)*m                                (1<m<2, E=e-127)
+//#  1/B = 1/((2^E)*m) = 1/((2^(E+1))*m1)          (0.5<m1<1)
+//#      = (2^-(E+1))*(1/m1) = (2^E1)*(1/m1)
+//#
+//# Now we can find the new exponent:
+//# e1 = E1+127 = -E-1+127 = -e+127-1+127 = 253-e **
+//# 1/m1 alreadt has the exponent 127, so we have to add 126-e.
+//# the exponent might underflow, which we can detect as a sign change.
+//# Since the architeture uses flush-to-zero for subnormals, we can
+//# give the result 0. then.
+//#
+//# The 1/m1 term with 0.5<m1<1 is approximated with the Chebyshev polynomial
+//# 1/m1 = 2.58586*(m1^2) - 5.81818*m1 + 4.24242
+//#
+//# Next step is to use two iterations of Newton-Raphson algorithm to complete
+//# the reciprocal calculation.
+//#
+//# Final result is achieved by multiplying A with 1/B
+//#############################################################################
+
+
+
+// R0 exponent and sign "replacement" into TMP0
+AND TMP0,R0,P0L		 ;
+ORR TMP0,TMP0,P1L
+SUB TMP5,R0,TMP0 // R0 sign/exponent extraction into TMP5
+// Calculate new mantissa
+FMADD P1H,TMP0,P0H	         ;
+		// Calculate new exponent offset 126 - "old exponent"
+		SUB P1L,P1L,TMP5
+	ldrd P0L , [ R1 , -1 ]
+FMADD P0L,TMP0,P1H	         ;
+		eor P1H,r0,P1L // check for overflow (N-BIT).
+		blt .Lret_0
+// P0L exponent and sign "replacement"
+sub P0L,P0L,TMP5
+
+// Newton-Raphson iteration #1
+MOV TMP0,P0H	         ;
+FMSUB P0H,R0,P0L	 ;
+FMUL  P0L,P0H,P0L	 ;
+// Newton-Raphson iteration #2
+FMSUB TMP0,R0,P0L	;
+FMUL  R0,TMP0,P0L	         ;
+jr lr
+.Lret_0:ldrd P0L , [ R1 , -3 ]
+	lsr TMP0,r0,31 ; extract sign
+	lsl TMP0,TMP0,31
+	add P0L,P0L,r0 ; check for NaN input
+	eor P0L,P0L,r0
+	movgte r0,TMP0
+	jr lr
+// Quotient calculation is expected by the caller: FMUL quotient,divident,R0
+        ;
+	ENDFUNC(__fast_recipsf2)
diff --git a/libgcc/config/epiphany/ieee-754/gtesf2.S b/libgcc/config/epiphany/ieee-754/gtesf2.S
new file mode 100644
index 00000000000..615dde4fd8a
--- /dev/null
+++ b/libgcc/config/epiphany/ieee-754/gtesf2.S
@@ -0,0 +1,66 @@
+/* Copyright (C) 2008, 2009 Free Software Foundation, Inc.
+   Contributed by Embecosm on behalf of Adapteva, 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 3, or (at your option) any later
+version.
+
+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.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "../epiphany-asm.h"
+
+	/* Assumptions: NaNs have all bits 10..30 and one of bit 0..9 set.
+			after sub: AC = ~Borrow.
+	   clobber: TMP0
+	   output: gt / gte indicates greater / greater or equal.  */
+
+	FSTAB (__gtesf2,T_INT)
+	.global SYM(__gtesf2)
+	.balign 4
+	HIDDEN_FUNC(__gtesf2)
+SYM(__gtesf2):
+#ifndef FLOAT_FORMAT_MOTOROLA
+	mov	TMP0,0xffff
+	movt	TMP0,0x7f
+	add	TMP0,TMP0,r0
+	eor	TMP0,TMP0,r0
+	blt	.Lret
+	mov	TMP0,0xffff
+	movt	TMP0,0x7f
+	add	TMP0,TMP0,r1
+#else
+	add	TMP0,r0,0x3ff; check for r0 NaN
+	eor	TMP0,TMP0,r0
+	blt	.Lret
+	add	TMP0,r1,0x3ff; check for r1 NaN
+#endif
+	eor	TMP0,TMP0,r1
+	blt	.Lret
+	and	TMP0,r0,r1
+	blt	.Lneg
+	orr	TMP0,r0,r1
+	lsl	TMP0,TMP0,1
+	beq	.Lret
+	sub	TMP0,r0,r1
+.Lret:
+	rts
+	.balign 4
+.Lneg:
+	sub	TMP0,r1,r0
+	rts
+	ENDFUNC(__gtesf2)
diff --git a/libgcc/config/epiphany/ieee-754/ordsf2.S b/libgcc/config/epiphany/ieee-754/ordsf2.S
new file mode 100644
index 00000000000..8493660102c
--- /dev/null
+++ b/libgcc/config/epiphany/ieee-754/ordsf2.S
@@ -0,0 +1,50 @@
+/* Copyright (C) 2008, 2009, 2011 Free Software Foundation, Inc.
+   Contributed by Embecosm on behalf of Adapteva, 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 3, or (at your option) any later
+version.
+
+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.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "../epiphany-asm.h"
+
+	FSTAB (__ordsf2,T_INT)
+	.global SYM(__ordsf2)
+	.balign 8,,2
+	HIDDEN_FUNC(__ordsf2)
+SYM(__ordsf2):
+#ifndef FLOAT_FORMAT_MOTOROLA
+	mov	TMP0,0
+	movt	TMP0,0xff00
+	lsl	TMP1,r0,1
+	sub	TMP1,TMP1,TMP0
+	bgtu	.Lret
+	lsl	TMP1,r1,1
+	sub	TMP1,TMP1,TMP0
+.Lret:	rts /* ordered: lteu */
+#else
+	/* Assumption: NaNs have all bits 9..30 and one of bit 0..8 set.  */
+	lsl	TMP0,r0,1
+	add	TMP0,TMP0,0x3fe
+	bgteu	.Lret
+	lsl	TMP0,r1,1
+	add	TMP0,TMP0,0x3fe
+.Lret:	rts /* ordered: ltu */
+#endif
+	ENDFUNC(__ordsf2)
diff --git a/libgcc/config/epiphany/ieee-754/uneqsf2.S b/libgcc/config/epiphany/ieee-754/uneqsf2.S
new file mode 100644
index 00000000000..cba04d3946c
--- /dev/null
+++ b/libgcc/config/epiphany/ieee-754/uneqsf2.S
@@ -0,0 +1,45 @@
+/* Copyright (C) 2008, 2009, 2011 Free Software Foundation, Inc.
+   Contributed by Embecosm on behalf of Adapteva, 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 3, or (at your option) any later
+version.
+
+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.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "../epiphany-asm.h"
+
+	FSTAB (__uneqsf2,T_INT)
+	.global SYM(__uneqsf2)
+	.balign 8,,2
+	HIDDEN_FUNC(__uneqsf2)
+SYM(__uneqsf2):
+        sub     TMP0,r0,r1
+        beq     .Lret
+        orr     TMP0,r0,r1
+        add     TMP0,TMP0,TMP0
+        beq     .Lret
+	mov	TMP0,1
+	movt	TMP0,0xff00
+	lsl	TMP1,r0,1
+	sub	TMP1,TMP0,TMP1
+	blteu	.Lret
+	lsl	TMP1,r1,1
+	sub	TMP1,TMP0,TMP1
+.Lret:	rts /* uneq: lteu */
+	ENDFUNC(__uneqsf2)
diff --git a/libgcc/config/epiphany/modsi3-float.S b/libgcc/config/epiphany/modsi3-float.S
new file mode 100644
index 00000000000..b789412ac1f
--- /dev/null
+++ b/libgcc/config/epiphany/modsi3-float.S
@@ -0,0 +1,65 @@
+/* Unsigned 32 bit division optimized for Epiphany.
+   Copyright (C) 2009, 2011 Free Software Foundation, Inc.
+   Contributed by Embecosm on behalf of Adapteva, Inc.
+
+This file is part of GCC.
+
+This file 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 3, or (at your option) any
+later version.
+
+This file 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.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "epiphany-asm.h"
+
+	FSTAB (__modsi3,T_UINT)
+	.global SYM(__modsi3)
+	.balign 4
+	HIDDEN_FUNC(__modsi3)
+SYM(__modsi3):
+	asr TMP3,r0,31 ; save sign
+	 float TMP0,r0
+	float TMP1,r1
+	 mov r2,0
+	sub TMP4,r2,r0
+	beq .Lret_r0
+	movgt r0,TMP4
+	sub TMP2,r2,r1
+	movlte TMP2,r1
+	sub r2,TMP0,TMP1
+	lsl r2,r2,1
+	blte .L0step
+	asr TMP4,r2,24
+	lsl r2,TMP4,3
+	mov TMP4,%low(.L0step)
+	movt TMP4,%high(.L0step)
+	sub r2,TMP4,r2
+	jr r2
+#define STEP(n) lsl.l r2,TMP2,n` sub r2,r0,r2` movgteu r0,r2
+	.balign 8,,2
+	STEP(31)` STEP(30)` STEP(29)` STEP(28)`
+	STEP(27)` STEP(26)` STEP(25)` STEP(24)`
+	STEP(23)` STEP(22)` STEP(21)` STEP(20)`
+	STEP(19)` STEP(18)` STEP(17)` STEP(16)`
+	STEP(15)` STEP(14)` STEP(13)` STEP(12)`
+	STEP(11)` STEP(10)` STEP(9)`  STEP(8)`
+	STEP(7)` STEP(6)` STEP(5)` STEP(4)` STEP(3)` STEP(2)` STEP(1)
+.L0step:STEP(0)
+	eor r0,r0,TMP3 ; restore sign
+	sub r0,r0,TMP3
+.Lret_r0:
+	rts
+	ENDFUNC(__modsi3)
diff --git a/libgcc/config/epiphany/modsi3.S b/libgcc/config/epiphany/modsi3.S
new file mode 100644
index 00000000000..d969b79c933
--- /dev/null
+++ b/libgcc/config/epiphany/modsi3.S
@@ -0,0 +1,77 @@
+/* Signed 32 bit modulo optimized for Epiphany.
+   Copyright (C) 2009 Free Software Foundation, Inc.
+   Contributed by Embecosm on behalf of Adapteva, Inc.
+
+This file is part of GCC.
+
+This file 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 3, or (at your option) any
+later version.
+
+This file 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.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "epiphany-asm.h"
+
+	FSTAB (__modsi3,T_INT)
+	.global SYM(__modsi3)
+	.balign 4
+	HIDDEN_FUNC(__modsi3)
+SYM(__modsi3):
+	asr r17,r0,31 ; save sign
+	mov r2,0
+	sub r3,r2,r0
+	movgt r0,r3
+	sub r3,r2,r1
+	movgt r1,r3
+	movt r2,0xa000 ; 0xa0000000
+	orr r3,r2,r0
+	lsr r15,r0,16
+	movt r15,0xa800
+	movne r3,r15
+	lsr r16,r2,2 ; 0x28000000
+	and r15,r3,r16
+	fadd r12,r3,r15
+	 orr r3,r2,r1
+	lsr r2,r1,16
+	movt r2,0xa800
+	movne r3,r2
+	and r2,r16,r3
+	fadd r3,r3,r2
+	 sub r2,r0,r1
+	bltu .Lret_a
+	lsr r12,r12,23
+	mov r2,%low(.L0step)
+	movt r2,%high(.L0step)
+	lsr r3,r3,23
+	sub r3,r12,r3 ; calculate bit number difference.
+	lsl r3,r3,3
+	sub r2,r2,r3
+	jr r2
+/*              lsl_l r2,r1,n`               sub r2,r0,r2` movgteu r0,r2  */
+#define STEP(n) .long 0x0006441f | (n) << 5` sub r2,r0,r2` movgteu r0,r2
+	.balign 8,,2
+	STEP(31)` STEP(30)` STEP(29)` STEP(28)`
+	STEP(27)` STEP(26)` STEP(25)` STEP(24)`
+	STEP(23)` STEP(22)` STEP(21)` STEP(20)`
+	STEP(19)` STEP(18)` STEP(17)` STEP(16)`
+	STEP(15)` STEP(14)` STEP(13)` STEP(12)`
+	STEP(11)` STEP(10)` STEP(9)`  STEP(8)`
+	STEP(7)` STEP(6)` STEP(5)` STEP(4)` STEP(3)` STEP(2)` STEP(1)
+.L0step:STEP(0)
+.Lret_a:eor r0,r0,r17 ; restore sign
+	sub r0,r0,r17
+	rts
+	ENDFUNC(__modsi3)
diff --git a/libgcc/config/epiphany/modsi3.c b/libgcc/config/epiphany/modsi3.c
new file mode 100644
index 00000000000..feee3d1ea25
--- /dev/null
+++ b/libgcc/config/epiphany/modsi3.c
@@ -0,0 +1,106 @@
+/* Generic signed 32 bit modulo implementation.
+   Copyright (C) 2009 Free Software Foundation, Inc.
+   Contributed by Embecosm on behalf of Adapteva, Inc.
+
+This file is part of GCC.
+
+This file 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 3, or (at your option) any
+later version.
+
+This file 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.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+typedef union { unsigned int i; float f; } fu;
+
+unsigned int __modsi3 (unsigned int a, unsigned int b);
+
+unsigned int
+__modsi3 (unsigned int a, unsigned int b)
+{
+  unsigned int sign = (int) a >> 31;
+  unsigned int d, t, s0, s1, s2, r0, r1;
+  fu u0, u1, u2, u1b, u2b;
+
+  a = abs (a);
+  b = abs (b);
+
+  if (b > a)
+    goto ret_a;
+
+  /* Compute difference in number of bits in S0.  */
+  u0.i = 0x40000000;
+  u1b.i = u2b.i = u0.i;
+  u1.i = a;
+  u2.i = b;
+  u1.i = a | u0.i;
+  t = 0x4b800000 | ((a >> 23) & 0xffff);
+  if (a >> 23)
+    {
+      u1.i = t;
+      u1b.i = 0x4b800000;
+    }
+  u2.i = b | u0.i;
+  t = 0x4b800000 | ((b >> 23) & 0xffff);
+  if (b >> 23)
+    {
+      u2.i = t;
+      u2b.i = 0x4b800000;
+    }
+  u1.f = u1.f - u1b.f;
+  u2.f = u2.f - u2b.f;
+  s1 = u1.i >> 23;
+  s2 = u2.i >> 23;
+  s0 = s1 - s2;
+
+#define STEP(n) case n: d = b << n; t = a - d; if (t <= a) a = t;
+  switch (s0)
+    {
+    STEP (31)
+    STEP (30)
+    STEP (29)
+    STEP (28)
+    STEP (27)
+    STEP (26)
+    STEP (25)
+    STEP (24)
+    STEP (23)
+    STEP (22)
+    STEP (21)
+    STEP (20)
+    STEP (19)
+    STEP (18)
+    STEP (17)
+    STEP (16)
+    STEP (15)
+    STEP (14)
+    STEP (13)
+    STEP (12)
+    STEP (11)
+    STEP (10)
+    STEP (9)
+    STEP (8)
+    STEP (7)
+    STEP (6)
+    STEP (5)
+    STEP (4)
+    STEP (3)
+    STEP (2)
+    STEP (1)
+    STEP (0)
+    }
+ ret_a:
+  return (a ^ sign) - sign;
+}
diff --git a/libgcc/config/epiphany/mulsi3.c b/libgcc/config/epiphany/mulsi3.c
new file mode 100644
index 00000000000..148361d92be
--- /dev/null
+++ b/libgcc/config/epiphany/mulsi3.c
@@ -0,0 +1,39 @@
+/* Generic 32 bit multiply.
+   Copyright (C) 2009 Free Software Foundation, Inc.
+   Contributed by Embecosm on behalf of Adapteva, Inc.
+
+This file is part of GCC.
+
+This file 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 3, or (at your option) any
+later version.
+
+This file 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.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+unsigned int
+__mulsi3 (unsigned int a, unsigned int b)
+{
+  unsigned int r = 0;
+
+  while (a)
+    {
+      if (a & 1)
+	r += b;
+      a >>= 1;
+      b <<= 1;
+    }
+  return r;
+}
diff --git a/libgcc/config/epiphany/t-custom-eqsf b/libgcc/config/epiphany/t-custom-eqsf
new file mode 100644
index 00000000000..3b5a54acef2
--- /dev/null
+++ b/libgcc/config/epiphany/t-custom-eqsf
@@ -0,0 +1 @@
+FPBIT_FUNCS := $(filter-out _eq_sf,$(FPBIT_FUNCS))
diff --git a/libgcc/config/epiphany/t-epiphany b/libgcc/config/epiphany/t-epiphany
new file mode 100644
index 00000000000..4b67f5d4690
--- /dev/null
+++ b/libgcc/config/epiphany/t-epiphany
@@ -0,0 +1,35 @@
+# Copyright (C) 1997, 1998, 1999, 2001, 2002, 2003,
+# 2004, 2009, 2010, 2011 Free Software Foundation, Inc.
+# Contributed by Embecosm on behalf of Adapteva, 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 3, or (at your option)
+# any later version.
+#
+# 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 COPYING3.  If not see
+# <http://www.gnu.org/licenses/>.
+
+LIB2ADD_ST = $(srcdir)/config/epiphany/modsi3-float.S \
+	     $(srcdir)/config/epiphany/divsi3-float.S \
+	     $(srcdir)/config/epiphany/udivsi3-float.S \
+	     $(srcdir)/config/epiphany/umodsi3-float.S \
+	     $(srcdir)/config/epiphany/ieee-754/eqsf2.S \
+	     $(srcdir)/config/epiphany/ieee-754/gtesf2.S \
+	     $(srcdir)/config/epiphany/ieee-754/ordsf2.S \
+	     $(srcdir)/config/epiphany/ieee-754/uneqsf2.S \
+	     $(srcdir)/config/epiphany/ieee-754/fast_div.S
+
+# .init/.fini section routines
+
+crtint.o crtrunc.o crtm1reg-r43.o crtm1reg-r63.o : \
+  %.o: $(srcdir)/config/epiphany/%.S $(GCC_PASSES) $(CONFIG_H)
+	$(crt_compile) -c -x assembler-with-cpp $<
diff --git a/libgcc/config/epiphany/udivsi3-float.S b/libgcc/config/epiphany/udivsi3-float.S
new file mode 100644
index 00000000000..5c960dce5f0
--- /dev/null
+++ b/libgcc/config/epiphany/udivsi3-float.S
@@ -0,0 +1,83 @@
+/* Unsigned 32 bit division optimized for Epiphany.
+   Copyright (C) 2009, 2011 Free Software Foundation, Inc.
+   Contributed by Embecosm on behalf of Adapteva, Inc.
+
+This file is part of GCC.
+
+This file 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 3, or (at your option) any
+later version.
+
+This file 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.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "epiphany-asm.h"
+
+	FSTAB (__udivsi3,T_UINT)
+	.global SYM(__udivsi3)
+	.balign 4
+	HIDDEN_FUNC(__udivsi3)
+SYM(__udivsi3):
+	sub TMP0,r0,r1
+	bltu .Lret0
+	float TMP2,r0
+	  mov TMP1,%low(0xb0800000) ; ??? this would be faster with small data
+	float TMP3,r1
+	  movt TMP1,%high(0xb0800000)
+	asr TMP0,r0,8
+	sub TMP0,TMP0,TMP1
+	movt TMP1,%high(0x00810000)
+	movgteu TMP2,TMP0
+	bblt .Lret1
+	sub TMP2,TMP2,TMP1
+	sub TMP2,TMP2,TMP3
+	mov TMP3,0
+	movltu TMP2,TMP3
+	lsr TMP2,TMP2,23
+	lsl r1,r1,TMP2
+	mov TMP0,1
+	lsl TMP0,TMP0,TMP2
+	sub r0,r0,r1
+	bltu .Ladd_back
+	add TMP3,TMP3,TMP0
+	sub r0,r0,r1
+	bltu .Ladd_back
+.Lsub_loop:; More than two iterations are rare, so it makes sense to leave
+           ; this label here to reduce average branch penalties.
+	add TMP3,TMP3,TMP0
+	sub r0,r0,r1
+	bgteu .Lsub_loop
+.Ladd_back:
+	add r0,r0,r1
+	sub TMP1,r1,1
+	mov r1,%low(.L0step)
+	movt r1,%high(.L0step)
+	lsl TMP2,TMP2,3
+	sub r1,r1,TMP2
+	jr r1
+	.rep 30
+	lsl r0,r0,1
+	sub.l r1,r0,TMP1
+	movgteu r0,r1
+	.endr
+.L0step:sub r1,TMP0,1 ; mask result bits from steps ...
+	and r0,r0,r1
+	orr r0,r0,TMP3 ; ... and combine with first bits.
+	rts
+.Lret0:	mov r0,0
+	rts
+.Lret1:	mov r0,1
+	rts
+	ENDFUNC(__udivsi3)
diff --git a/libgcc/config/epiphany/udivsi3-float.c b/libgcc/config/epiphany/udivsi3-float.c
new file mode 100644
index 00000000000..c7f10590c49
--- /dev/null
+++ b/libgcc/config/epiphany/udivsi3-float.c
@@ -0,0 +1,125 @@
+/* Generic unsigned 32 bit division implementation.
+   Copyright (C) 2009, 2011 Free Software Foundation, Inc.
+   Contributed by Embecosm on behalf of Adapteva, Inc.
+
+This file is part of GCC.
+
+This file 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 3, or (at your option) any
+later version.
+
+This file 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.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+typedef union { unsigned int i; float f; } fu;
+
+unsigned int __udivsi3 (unsigned int a, unsigned int b);
+
+unsigned int
+__udivsi3 (unsigned int a, unsigned int b)
+{
+  unsigned int d, t, s0, s1, s2, r0, r1;
+  fu u0, u1, u2,  u1b, u2b;
+
+  if (b > a)
+    return 0;
+  if ((int) b < 0)
+    return 1;
+
+  /* Assuming B is nonzero, compute S0 such that 0 <= S0,
+     (B << S0+1) does not overflow,
+     A < 4.01 * (B << S0), with S0 choosen as small as possible
+     without taking to much time calculating.  */
+#ifdef CONVERT_UNSIGNED
+  u0.f = a;
+  u1.f = b;
+#else /* !CONVERT_UNSIGNED */
+  u0.f = (int) a;
+  u1.f = (int) b;
+#ifdef CONCISE
+  if (a < 0)
+    u0.i = (a >> 8) - 0x00800000 + 0x3f800000 + (31 << 23);
+#else /* To use flag seting / cmove, this can be written as:  */
+ {
+  unsigned c = 0xff800000 - 0x4f000000;
+  t = (int)a >> 8;
+  if (t >= c)
+    u0.i = (t - c);
+ }
+#endif
+#endif /* !CONVERT_UNSIGNED */
+  s0 = u0.i + 1 /* Compensate for rounding errors.  */
+	    - 0x00800000 /* adjust by one */ ;
+  s0 = s0 - u1.i;
+  s0 = (int)s0 >= 0 ? s0 : 0;
+  s0 >>= 23;
+
+  b <<= s0;
+  r1 = 0;
+
+  r0 = 1 << s0;
+  a = ((t=a) - b);
+  if (a <= t)
+    {
+      r1 += r0;
+      a = ((t=a) - b);
+      if (a <= t)
+	do {
+	  r1 += r0;
+	  a = ((t=a) - b);
+	} while (a <= t);
+    }
+  a += b;
+  d = b - 1;
+
+#define STEP(n) case n: a += a; t = a - d; if (t <= a) a = t;
+  switch (s0)
+    {
+    STEP (31)
+    STEP (30)
+    STEP (29)
+    STEP (28)
+    STEP (27)
+    STEP (26)
+    STEP (25)
+    STEP (24)
+    STEP (23)
+    STEP (22)
+    STEP (21)
+    STEP (20)
+    STEP (19)
+    STEP (18)
+    STEP (17)
+    STEP (16)
+    STEP (15)
+    STEP (14)
+    STEP (13)
+    STEP (12)
+    STEP (11)
+    STEP (10)
+    STEP (9)
+    STEP (8)
+    STEP (7)
+    STEP (6)
+    STEP (5)
+    STEP (4)
+    STEP (3)
+    STEP (2)
+    STEP (1)
+    case 0: ;
+    }
+  r0 = r1 | (r0-1 & a);
+  return r0;
+}
diff --git a/libgcc/config/epiphany/udivsi3.S b/libgcc/config/epiphany/udivsi3.S
new file mode 100644
index 00000000000..1396281f73a
--- /dev/null
+++ b/libgcc/config/epiphany/udivsi3.S
@@ -0,0 +1,85 @@
+/* Unsigned 32 bit division optimized for Epiphany.
+   Copyright (C) 2009 Free Software Foundation, Inc.
+   Contributed by Embecosm on behalf of Adapteva, Inc.
+
+This file is part of GCC.
+
+This file 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 3, or (at your option) any
+later version.
+
+This file 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.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "epiphany-asm.h"
+
+	FSTAB (__udivsi3,T_UINT)
+	.global SYM(__udivsi3)
+	.balign 4
+	HIDDEN_FUNC(__udivsi3)
+SYM(__udivsi3):
+	sub r3,r0,r1
+	bltu .Lret0
+	mov r3,0x95
+	lsl r12,r3,23 ; 0x4a800000
+	lsl r3,r3,30 ; 0x40000000
+	orr r16,r0,r3
+	orr r2,r1,r3
+	 fsub r16,r16,r3
+	fsub r2,r2,r3
+	 lsr r3,r1,21
+	lsr r17,r0,21
+	movt r17,0x4a80
+	fsub r17,r17,r12
+	 movt r3,0x4a80
+	fsub r3,r3,r12
+	 mov r12,%low(.L0step)
+	movt r12,%high(.L0step)
+	mov r21,1
+	movne r16,r17
+	lsr r17,r1,21
+	movne r2,r3
+	lsr r3,r16,23 ; must mask lower bits of r2 in case op0 was ..
+	lsr r2,r2,23 ; .. shifted and op1 was not.
+	sub r3,r3,r2 ; calculate bit number difference.
+	lsl r1,r1,r3
+	lsr r16,r1,1
+	lsl r2,r21,r3
+	lsl r3,r3,3
+	sub r12,r12,r3
+	sub r3,r0,r1
+	movltu r3,r0
+	mov r0,0
+	movgteu r0,r2
+	lsr r2,r2,1
+	add r17,r2,r0
+	sub r1,r3,r16
+	movgteu r3,r1
+	movgteu r0,r17
+	sub r16,r16,1
+	jr r12
+	.rep 30
+	lsl r3,r3,1
+	sub r1,r3,r16
+	movgteu r3,r1
+	.endr
+	sub r2,r2,1 ; mask result bits from steps ...
+	and r3,r3,r2
+	orr r0,r0,r3 ; ... and combine with first bits.
+	nop
+.L0step:rts
+.Lret0:	mov r0,0
+	rts
+	ENDFUNC(__udivsi3)
diff --git a/libgcc/config/epiphany/udivsi3.c b/libgcc/config/epiphany/udivsi3.c
new file mode 100644
index 00000000000..cd34c6d761c
--- /dev/null
+++ b/libgcc/config/epiphany/udivsi3.c
@@ -0,0 +1,114 @@
+/* Generic unsigned 32 bit division implementation.
+   Copyright (C) 2009 Free Software Foundation, Inc.
+   Contributed by Embecosm on behalf of Adapteva, Inc.
+
+This file is part of GCC.
+
+This file 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 3, or (at your option) any
+later version.
+
+This file 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.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+typedef union { unsigned int i; float f; } fu;
+
+unsigned int __udivsi3 (unsigned int a, unsigned int b);
+
+unsigned int
+__udivsi3 (unsigned int a, unsigned int b)
+{
+  unsigned int d, t, s0, s1, s2, r0, r1;
+  fu u0, u1, u2,  u1b, u2b;
+
+  if (b > a)
+    return 0;
+
+  /* Compute difference in number of bits in S0.  */
+  u0.i = 0x40000000;
+  u1b.i = u2b.i = u0.i;
+  u1.i = a;
+  u2.i = b;
+  u1.i = a | u0.i;
+  t = 0x4b800000 | ((a >> 23) & 0xffff);
+  if (a >> 23)
+    {
+      u1.i = t;
+      u1b.i = 0x4b800000;
+    }
+  u2.i = b | u0.i;
+  t = 0x4b800000 | ((b >> 23) & 0xffff);
+  if (b >> 23)
+    {
+      u2.i = t;
+      u2b.i = 0x4b800000;
+    }
+  u1.f = u1.f - u1b.f;
+  u2.f = u2.f - u2b.f;
+  s1 = u1.i >> 23;
+  s2 = u2.i >> 23;
+  s0 = s1 - s2;
+
+  b <<= s0;
+  d = b - 1;
+
+  r0 = 1 << s0;
+  r1 = 0;
+  t = a - b;
+  if (t <= a)
+    {
+      a = t;
+      r1 = r0;
+    }
+
+#define STEP(n) case n: a += a; t = a - d; if (t <= a) a = t;
+  switch (s0)
+    {
+    STEP (31)
+    STEP (30)
+    STEP (29)
+    STEP (28)
+    STEP (27)
+    STEP (26)
+    STEP (25)
+    STEP (24)
+    STEP (23)
+    STEP (22)
+    STEP (21)
+    STEP (20)
+    STEP (19)
+    STEP (18)
+    STEP (17)
+    STEP (16)
+    STEP (15)
+    STEP (14)
+    STEP (13)
+    STEP (12)
+    STEP (11)
+    STEP (10)
+    STEP (9)
+    STEP (8)
+    STEP (7)
+    STEP (6)
+    STEP (5)
+    STEP (4)
+    STEP (3)
+    STEP (2)
+    STEP (1)
+    case 0: ;
+    }
+  r0 = r1 | (r0-1 & a);
+  return r0;
+}
diff --git a/libgcc/config/epiphany/umodsi3-float.S b/libgcc/config/epiphany/umodsi3-float.S
new file mode 100644
index 00000000000..ca5db48906c
--- /dev/null
+++ b/libgcc/config/epiphany/umodsi3-float.S
@@ -0,0 +1,63 @@
+/* Unsigned 32 bit division optimized for Epiphany.
+   Copyright (C) 2009, 2011 Free Software Foundation, Inc.
+   Contributed by Embecosm on behalf of Adapteva, Inc.
+
+This file is part of GCC.
+
+This file 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 3, or (at your option) any
+later version.
+
+This file 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.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "epiphany-asm.h"
+
+/* Because we handle a divident with bit 31 set with truncating integer
+   arithmetic, there is no rounding-related overflow.  */
+	FSTAB (__umodsi3,T_UINT)
+	.global SYM(__umodsi3)
+	.balign 4
+	HIDDEN_FUNC(__umodsi3)
+SYM(__umodsi3):
+	float r2,r0
+	  mov TMP1,%low(0xb0800000) ; ??? this would be faster with small data
+	float TMP2,r1
+	  movt TMP1,%high(0xb0800000)
+	asr TMP0,r0,8
+	sub TMP0,TMP0,TMP1
+	mov TMP1,%low(.L0step)
+	movgteu r2,TMP0
+	sub r2,r2,TMP2
+	blteu .L0step
+	asr r2,r2,23
+	movt TMP1,%high(.L0step)
+	lsl TMP2,r2,3
+	lsl r2,r1,r2` sub r2,r0,r2` movgteu r0,r2 ; STEP(r2)
+	sub r2,TMP1,TMP2
+	jr r2
+#define STEP(n) lsl.l r2,r1,n` sub r2,r0,r2` movgteu r0,r2
+	.balign 8,,2
+	STEP(31)` STEP(30)` STEP(29)` STEP(28)`
+	STEP(27)` STEP(26)` STEP(25)` STEP(24)`
+	STEP(23)` STEP(22)` STEP(21)` STEP(20)`
+	STEP(19)` STEP(18)` STEP(17)` STEP(16)`
+	STEP(15)` STEP(14)` STEP(13)` STEP(12)`
+	STEP(11)` STEP(10)` STEP(9)`  STEP(8)`
+	STEP(7)` STEP(6)` STEP(5)` STEP(4)` STEP(3)` STEP(2)` STEP(1)
+.L0step:STEP(0)
+.Lret_r0:
+	rts
+	ENDFUNC(__umodsi3)
diff --git a/libgcc/config/epiphany/umodsi3.S b/libgcc/config/epiphany/umodsi3.S
new file mode 100644
index 00000000000..6f808fdc7aa
--- /dev/null
+++ b/libgcc/config/epiphany/umodsi3.S
@@ -0,0 +1,70 @@
+/* Unsigned 32 bit modulo optimized for Epiphany.
+   Copyright (C) 2009 Free Software Foundation, Inc.
+   Contributed by Embecosm on behalf of Adapteva, Inc.
+
+This file is part of GCC.
+
+This file 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 3, or (at your option) any
+later version.
+
+This file 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.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "epiphany-asm.h"
+
+	FSTAB (__umodsi3,T_UINT)
+	.global SYM(__umodsi3)
+	.balign 4
+	HIDDEN_FUNC(__umodsi3)
+SYM(__umodsi3):
+	mov r2,5
+	lsl r2,r2,29 ; 0xa0000000
+	orr r3,r2,r0
+	lsr r15,r0,16
+	movt r15,0xa800
+	movne r3,r15
+	lsr r16,r2,2 ; 0x28000000
+	and r15,r3,r16
+	fadd r12,r3,r15
+	 orr r3,r2,r1
+	lsr r2,r1,16
+	movt r2,0xa800
+	movne r3,r2
+	and r2,r16,r3
+	fadd r3,r3,r2
+	 sub r2,r0,r1
+	bltu .Lret_a
+	lsr r12,r12,23
+	mov r2,%low(.L0step)
+	movt r2,%high(.L0step)
+	lsr r3,r3,23
+	sub r3,r12,r3 ; calculate bit number difference.
+	lsl r3,r3,3
+	sub r2,r2,r3
+	jr r2
+/*              lsl_l r2,r1,n`               sub r2,r0,r2` movgteu r0,r2  */
+#define STEP(n) .long 0x0006441f | (n) << 5` sub r2,r0,r2` movgteu r0,r2
+	.balign 8,,2
+	STEP(31)` STEP(30)` STEP(29)` STEP(28)`
+	STEP(27)` STEP(26)` STEP(25)` STEP(24)`
+	STEP(23)` STEP(22)` STEP(21)` STEP(20)`
+	STEP(19)` STEP(18)` STEP(17)` STEP(16)`
+	STEP(15)` STEP(14)` STEP(13)` STEP(12)`
+	STEP(11)` STEP(10)` STEP(9)`  STEP(8)`
+	STEP(7)` STEP(6)` STEP(5)` STEP(4)` STEP(3)` STEP(2)` STEP(1)
+.L0step:STEP(0)
+.Lret_a:rts
+	ENDFUNC(__umodsi3)
diff --git a/libgcc/config/epiphany/umodsi3.c b/libgcc/config/epiphany/umodsi3.c
new file mode 100644
index 00000000000..609a250f14a
--- /dev/null
+++ b/libgcc/config/epiphany/umodsi3.c
@@ -0,0 +1,101 @@
+/* Generic unsigned 32 bit modulo implementation.
+   Copyright (C) 2009 Free Software Foundation, Inc.
+   Contributed by Embecosm on behalf of Adapteva, Inc.
+
+This file is part of GCC.
+
+This file 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 3, or (at your option) any
+later version.
+
+This file 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.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+typedef union { unsigned int i; float f; } fu;
+
+unsigned int __umodsi3 (unsigned int a, unsigned int b);
+
+unsigned int
+__umodsi3 (unsigned int a, unsigned int b)
+{
+  unsigned int d, t, s0, s1, s2, r0, r1;
+  fu u0, u1, u2,  u1b, u2b;
+
+  if (b > a)
+    return a;
+
+  /* Compute difference in number of bits in S0.  */
+  u0.i = 0x40000000;
+  u1b.i = u2b.i = u0.i;
+  u1.i = a;
+  u2.i = b;
+  u1.i = a | u0.i;
+  t = 0x4b800000 | ((a >> 23) & 0xffff);
+  if (a >> 23)
+    {
+      u1.i = t;
+      u1b.i = 0x4b800000;
+    }
+  u2.i = b | u0.i;
+  t = 0x4b800000 | ((b >> 23) & 0xffff);
+  if (b >> 23)
+    {
+      u2.i = t;
+      u2b.i = 0x4b800000;
+    }
+  u1.f = u1.f - u1b.f;
+  u2.f = u2.f - u2b.f;
+  s1 = u1.i >> 23;
+  s2 = u2.i >> 23;
+  s0 = s1 - s2;
+
+#define STEP(n) case n: d = b << n; t = a - d; if (t <= a) a = t;
+  switch (s0)
+    {
+    STEP (31)
+    STEP (30)
+    STEP (29)
+    STEP (28)
+    STEP (27)
+    STEP (26)
+    STEP (25)
+    STEP (24)
+    STEP (23)
+    STEP (22)
+    STEP (21)
+    STEP (20)
+    STEP (19)
+    STEP (18)
+    STEP (17)
+    STEP (16)
+    STEP (15)
+    STEP (14)
+    STEP (13)
+    STEP (12)
+    STEP (11)
+    STEP (10)
+    STEP (9)
+    STEP (8)
+    STEP (7)
+    STEP (6)
+    STEP (5)
+    STEP (4)
+    STEP (3)
+    STEP (2)
+    STEP (1)
+    STEP (0)
+    }
+  return a;
+}