Patch ieee128-lib-patch010b

3 files changed, 92 insertions, 0 deletions

diff --git a/libgcc/config/rs6000/float128-decimal.c b/libgcc/config/rs6000/float128-decimal.c
index e69de29..31af26b 100644
--- a/libgcc/config/rs6000/float128-decimal.c
+++ b/libgcc/config/rs6000/float128-decimal.c
@@ -0,0 +1,78 @@
+/* Provide missing conversions between IEEE 128-bit floating point and Decimal
+   floating point for PowerPC.
+
+   Copyright (C) 2020 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Michael Meissner (meissner@linux.ibm.com)
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   In addition to the permissions in the GNU Lesser 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 Lesser 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.)
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+extern __float128 __dpd_trunctdkf (_Decimal128);
+extern __float128 __dpd_truncddkf (_Decimal64);
+extern __float128 __dpd_truncsdkf (_Decimal64);
+extern _Decimal128 __dpd_extendkftd (__float128);
+extern _Decimal64 __dpd_trunckfdd (__float128);
+extern _Decimal32 __dpd_trunckfsd (__float128);
+
+__float128
+__dpd_trunctdkf (_Decimal128 x)
+{
+  __ibm128 ibm = (__ibm128) x;
+  return (__float128) ibm;
+}
+
+__float128
+__dpd_truncddkf (_Decimal64 x)
+{
+  __ibm128 ibm = (__ibm128) x;
+  return (__float128) ibm;
+}
+
+__float128
+__dpd_truncsdkf (_Decimal64 x)
+{
+  __ibm128 ibm = (__ibm128) x;
+  return (__float128) ibm;
+}
+
+_Decimal128
+__dpd_extendkftd (__float128 x)
+{
+  __ibm128 ibm = (__ibm128) x;
+  return (_Decimal128) ibm;
+}
+
+_Decimal64
+__dpd_trunckfdd (__float128 x)
+{
+  __ibm128 ibm = (__ibm128) x;
+  return (_Decimal64) ibm;
+}
+
+_Decimal32
+__dpd_trunckfsd (__float128 x)
+{
+  __ibm128 ibm = (__ibm128) x;
+  return (_Decimal32) ibm;
+}
diff --git a/libgcc/config/rs6000/float128-decimal.ver b/libgcc/config/rs6000/float128-decimal.ver
index e69de29..08c15e2 100644
--- a/libgcc/config/rs6000/float128-decimal.ver
+++ b/libgcc/config/rs6000/float128-decimal.ver
@@ -0,0 +1,7 @@
+GCC_10.0.0 {
+  # float128 <-> decimal conversions
+  __dpd_extendkftd
+  __dpd_trunckfdd
+  __dpd_trunckfsd
+  __dpd_trunctdkf
+}
diff --git a/libgcc/config/rs6000/t-float128-decimal b/libgcc/config/rs6000/t-float128-decimal
index e69de29..2854c51 100644
--- a/libgcc/config/rs6000/t-float128-decimal
+++ b/libgcc/config/rs6000/t-float128-decimal
@@ -0,0 +1,7 @@
+# Add support for doing conversions between IEEE 128-bit floating point and
+# Decimal types if glibc does not provide the necessary functions.
+
+LIB2ADD		+= $(srcdir)/config/rs6000/float128-decimal.c
+SHLIB_MAPFILES	+= $(srcdir)/config/rs6000/float128-decimal.ver
+
+float128-decimal$(objext) : INTERNAL_CFLAGS += -mno-gnu-attribute