[gcc/devel/c++-modules] Missing __divtf3@@GCC_4.4.0 on ia64

[gcc/devel/c++-modules] Missing __divtf3@@GCC_4.4.0 on ia64

[Nathan Sidwell]

https://gcc.gnu.org/g:0ecf5229723ec99e6b5099dd68d48bd925da6b0d

commit 0ecf5229723ec99e6b5099dd68d48bd925da6b0d
Author: Andreas Schwab <schwab@suse.de>
Date:   Thu Nov 21 15:15:40 2013 +0100

    Missing __divtf3@@GCC_4.4.0 on ia64
    
    gcc/testsuite/
            PR libfortran/59227
            * gfortran.dg/erf_3.F90: Remove XFAIL on ia64-*-linux*.
    
    libgcc/
            PR target/59230
            PR libfortran/59227
            * config/ia64/t-softfp-compat (softfp_file_list): Filter out
            soft-fp/divtf3.c.
            (LIB2ADD): Add config/ia64/divtf3.c.
            * config/ia64/divtf3.c: New file.

Diff:
---
 gcc/testsuite/gfortran.dg/erf_3.F90 | 3 ---
 libgcc/config/ia64/divtf3.c         | 9 +++++++++
 libgcc/config/ia64/t-softfp-compat  | 3 +++
 3 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/gcc/testsuite/gfortran.dg/erf_3.F90 b/gcc/testsuite/gfortran.dg/erf_3.F90
index 69ac8430d96..2e3d58b445b 100644
--- a/gcc/testsuite/gfortran.dg/erf_3.F90
+++ b/gcc/testsuite/gfortran.dg/erf_3.F90
@@ -1,4 +1,3 @@
-! { dg-do run { xfail ia64-*-linux* } }
 ! { dg-options "-fno-range-check -ffree-line-length-none -O0" }
 ! { dg-add-options ieee }
 ! { dg-skip-if "PR libfortran/59313" { hppa*-*-hpux* } }
@@ -6,8 +5,6 @@
 ! Check that simplification functions and runtime library agree on ERF,
 ! ERFC and ERFC_SCALED, for quadruple-precision.
 !
-! XFAILed for IA64 Linux because of a glibc bug:
-! http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59227
 
 program test
   use, intrinsic :: iso_fortran_env
diff --git a/libgcc/config/ia64/divtf3.c b/libgcc/config/ia64/divtf3.c
new file mode 100644
index 00000000000..e1afa296f6d
--- /dev/null
+++ b/libgcc/config/ia64/divtf3.c
@@ -0,0 +1,9 @@
+#ifdef SHARED
+#define __divtf3 __divtf3_shared
+#endif
+
+#include "soft-fp/divtf3.c"
+
+#ifdef SHARED
+asm (".symver __divtf3_shared, __divtf3@@GCC_4.4.0");
+#endif
diff --git a/libgcc/config/ia64/t-softfp-compat b/libgcc/config/ia64/t-softfp-compat
index 00f45d51cd0..38bcea719ea 100644
--- a/libgcc/config/ia64/t-softfp-compat
+++ b/libgcc/config/ia64/t-softfp-compat
@@ -5,3 +5,6 @@ libgcc1-tf-functions = __divxf3  _fixtfdi _fixunstfdi _floatditf
 LIB1ASMFUNCS := $(filter-out $(libgcc1-tf-functions), $(LIB1ASMFUNCS))
 libgcc1-tf-compats = $(addsuffix .S, $(libgcc1-tf-functions))
 LIB2ADD += $(addprefix $(srcdir)/config/ia64/, $(libgcc1-tf-compats))
+# Wrap divtf3.c to set the default symbol version
+softfp_file_list := $(filter-out $(srcdir)/soft-fp/divtf3.c, $(softfp_file_list))
+LIB2ADD += $(srcdir)/config/ia64/divtf3.c