4 files changed, 92 insertions, 0 deletions
diff --git a/libgcc/config/gcn/lib2-bswapti2.c b/libgcc/config/gcn/lib2-bswapti2.c
new file mode 100644
index 0000000..c19b70b
--- /dev/null
+++ b/libgcc/config/gcn/lib2-bswapti2.c
@@ -0,0 +1,47 @@
+/* Copyright (C) 2021 Free Software Foundation, 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.
+
+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 "lib2-gcn.h"
+
+UTItype
+__bswapti2 (UTItype x)
+{
+  UDItype lo, hi, outlo, outhi;
+  lo = (UDItype) x;
+  hi = (UDItype) (x >> 64);
+  outhi = (lo >> 56) & 0xff;
+  outhi |= ((lo >> 48) & 0xff) << 8;
+  outhi |= ((lo >> 40) & 0xff) << 16;
+  outhi |= ((lo >> 32) & 0xff) << 24;
+  outhi |= ((lo >> 24) & 0xff) << 32;
+  outhi |= ((lo >> 16) & 0xff) << 40;
+  outhi |= ((lo >> 8) & 0xff) << 48;
+  outhi |= (lo & 0xff) << 56;
+  outlo = (hi >> 56) & 0xff;
+  outlo |= ((hi >> 48) & 0xff) << 8;
+  outlo |= ((hi >> 40) & 0xff) << 16;
+  outlo |= ((hi >> 32) & 0xff) << 24;
+  outlo |= ((hi >> 24) & 0xff) << 32;
+  outlo |= ((hi >> 16) & 0xff) << 40;
+  outlo |= ((hi >> 8) & 0xff) << 48;
+  outlo |= (hi & 0xff) << 56;
+  return ((UTItype) outhi << 64) | outlo;
+}
diff --git a/libgcc/config/gcn/lib2-divmod-di.c b/libgcc/config/gcn/lib2-divmod-di.c
new file mode 100644
index 0000000..ceb3962
--- /dev/null
+++ b/libgcc/config/gcn/lib2-divmod-di.c
@@ -0,0 +1,35 @@
+/* Copyright (C) 2021 Free Software Foundation, Inc.
+   Contributed by Mentor Graphics, 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.
+
+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 "lib2-gcn.h"
+
+/* We really want DImode here: override LIBGCC2_UNITS_PER_WORD.  */
+#define LIBGCC2_UNITS_PER_WORD 4
+#define TARGET_HAS_NO_HW_DIVIDE
+
+#define L_divmoddi4
+#define L_divdi3
+#define L_moddi3
+#define L_udivdi3
+#define L_umoddi3
+
+#include "libgcc2.c"
diff --git a/libgcc/config/gcn/lib2-gcn.h b/libgcc/config/gcn/lib2-gcn.h
index 9223d73..155cf7c 100644
--- a/libgcc/config/gcn/lib2-gcn.h
+++ b/libgcc/config/gcn/lib2-gcn.h
@@ -33,9 +33,17 @@ typedef short HItype __attribute__ ((mode (HI)));
 typedef unsigned short UHItype __attribute__ ((mode (HI)));
 typedef int SItype __attribute__ ((mode (SI)));
 typedef unsigned int USItype __attribute__ ((mode (SI)));
+typedef int DItype __attribute__ ((mode (DI)));
+typedef unsigned int UDItype __attribute__ ((mode (DI)));
+typedef int TItype __attribute__ ((mode (TI)));
+typedef unsigned int UTItype __attribute__ ((mode (TI)));
 typedef int word_type __attribute__ ((mode (__word__)));
 
 /* Exported functions.  */
+extern DItype __divdi3 (DItype, DItype);
+extern DItype __moddi3 (DItype, DItype);
+extern UDItype __udivdi3 (UDItype, UDItype);
+extern UDItype __umoddi3 (UDItype, UDItype);
 extern SItype __divsi3 (SItype, SItype);
 extern SItype __modsi3 (SItype, SItype);
 extern USItype __udivsi3 (USItype, USItype);
diff --git a/libgcc/config/gcn/t-amdgcn b/libgcc/config/gcn/t-amdgcn
index fe7b5fa..38bde54 100644
--- a/libgcc/config/gcn/t-amdgcn
+++ b/libgcc/config/gcn/t-amdgcn
@@ -1,6 +1,8 @@
 LIB2ADD += $(srcdir)/config/gcn/atomic.c \
 	   $(srcdir)/config/gcn/lib2-divmod.c \
 	   $(srcdir)/config/gcn/lib2-divmod-hi.c \
+	   $(srcdir)/config/gcn/lib2-divmod-di.c \
+	   $(srcdir)/config/gcn/lib2-bswapti2.c \
 	   $(srcdir)/config/gcn/unwind-gcn.c
 
 LIB2ADDEH=