[PATCH 4/4] OpenMP 4.0 offloading to Intel MIC: non-fallback testingkyukhin/gomp4-offload

2014-10-30  Andrey Turetskiy  <andrey.turetskiy@intel.com>
	    Ilya Verbin  <ilya.verbin@intel.com>

libgomp/
	* Makefile.in: Regenerate.
	* configure: Regenerate.
	* configure.ac: Set up offload_additional_options,
	offload_additional_lib_paths and offload_targets.
	* testsuite/Makefile.am: Overrule site.exp.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/lib/libgomp.exp (libgomp_init): Append
	offload_additional_lib_paths to LD_LIBRARY_PATH.  Append
	offload_additional_options to ALWAYS_CFLAGS.  Append liboffloadmic
	build directory to LD_LIBRARY_PATH for intelmic offload targets.

6 files changed, 74 insertions, 2 deletions

diff --git a/libgomp/Makefile.in b/libgomp/Makefile.in
index 5cd666f8ec6..8e4774f6c0e 100644
--- a/libgomp/Makefile.in
+++ b/libgomp/Makefile.in
@@ -268,6 +268,9 @@ lt_host_flags = @lt_host_flags@
 mandir = @mandir@
 mkdir_p = @mkdir_p@
 multi_basedir = @multi_basedir@
+offload_additional_lib_paths = @offload_additional_lib_paths@
+offload_additional_options = @offload_additional_options@
+offload_targets = @offload_targets@
 oldincludedir = @oldincludedir@
 pdfdir = @pdfdir@
 prefix = @prefix@
diff --git a/libgomp/configure b/libgomp/configure
index 7cd20b1bca1..19f36c6db0c 100755
--- a/libgomp/configure
+++ b/libgomp/configure
@@ -616,6 +616,9 @@ OMP_LOCK_SIZE
 USE_FORTRAN_FALSE
 USE_FORTRAN_TRUE
 link_gomp
+offload_additional_lib_paths
+offload_additional_options
+offload_targets
 XLDFLAGS
 XCFLAGS
 config_path
@@ -11094,7 +11097,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11097 "configure"
+#line 11100 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11200,7 +11203,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11203 "configure"
+#line 11206 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -16207,9 +16210,13 @@ else
   multilib_arg=
 fi
 
+# Get accel target and path to install tree of accel compiler
+offload_additional_options=
+offload_additional_lib_paths=
 offload_targets=
 if test x"$enable_offload_targets" != x; then
   for tgt in `echo $enable_offload_targets | sed -e 's#,# #g'`; do
+    tgt_dir=`echo $tgt | grep '=' | sed 's/.*=//'`
     tgt=`echo $tgt | sed 's/=.*//'`
     case $tgt in
       *-intelmic-* | *-intelmicemul-*)
@@ -16222,6 +16229,13 @@ if test x"$enable_offload_targets" != x; then
     else
       offload_targets=$offload_targets,$tgt_name
     fi
+    if test x"$tgt_dir" != x; then
+      offload_additional_options="$offload_additional_options -B$tgt_dir/libexec/gcc/\$(target_alias)/\$(gcc_version) -B$tgt_dir/bin"
+      offload_additional_lib_paths="$offload_additional_lib_paths:$tgt_dir/lib64:$tgt_dir/lib"
+    else
+      offload_additional_options="$offload_additional_options -B\$(libexecdir)/gcc/\$(target_alias)/\$(gcc_version) -B\$(bindir)"
+      offload_additional_lib_paths="$offload_additional_lib_paths:$toolexeclibdir"
+    fi
   done
 fi
 
@@ -16230,6 +16244,9 @@ cat >>confdefs.h <<_ACEOF
 _ACEOF
 
 
+
+
+
 # Set up the set of libraries that we need to link against for libgomp.
 # Note that the GOMP_SELF_SPEC in gcc.c may force -pthread,
 # which will force linkage against -lpthread (or equivalent for the system).
diff --git a/libgomp/configure.ac b/libgomp/configure.ac
index 3f34ff8ee5f..cea63660c5a 100644
--- a/libgomp/configure.ac
+++ b/libgomp/configure.ac
@@ -280,9 +280,13 @@ else
   multilib_arg=
 fi
 
+# Get accel target and path to install tree of accel compiler
+offload_additional_options=
+offload_additional_lib_paths=
 offload_targets=
 if test x"$enable_offload_targets" != x; then
   for tgt in `echo $enable_offload_targets | sed -e 's#,# #g'`; do
+    tgt_dir=`echo $tgt | grep '=' | sed 's/.*=//'`
     tgt=`echo $tgt | sed 's/=.*//'`
     case $tgt in
       *-intelmic-* | *-intelmicemul-*)
@@ -295,10 +299,20 @@ if test x"$enable_offload_targets" != x; then
     else
       offload_targets=$offload_targets,$tgt_name
     fi
+    if test x"$tgt_dir" != x; then
+      offload_additional_options="$offload_additional_options -B$tgt_dir/libexec/gcc/\$(target_alias)/\$(gcc_version) -B$tgt_dir/bin"
+      offload_additional_lib_paths="$offload_additional_lib_paths:$tgt_dir/lib64:$tgt_dir/lib"
+    else
+      offload_additional_options="$offload_additional_options -B\$(libexecdir)/gcc/\$(target_alias)/\$(gcc_version) -B\$(bindir)"
+      offload_additional_lib_paths="$offload_additional_lib_paths:$toolexeclibdir"
+    fi
   done
 fi
 AC_DEFINE_UNQUOTED(OFFLOAD_TARGETS, "$offload_targets",
   [Define to hold the list of target names suitable for offloading.])
+AC_SUBST(offload_targets)
+AC_SUBST(offload_additional_options)
+AC_SUBST(offload_additional_lib_paths)
 
 # Set up the set of libraries that we need to link against for libgomp.
 # Note that the GOMP_SELF_SPEC in gcc.c may force -pthread,
diff --git a/libgomp/testsuite/Makefile.am b/libgomp/testsuite/Makefile.am
index 561b7e25448..9cc103a1c4d 100644
--- a/libgomp/testsuite/Makefile.am
+++ b/libgomp/testsuite/Makefile.am
@@ -11,3 +11,8 @@ EXPECT = $(shell if test -f $(top_builddir)/../expect/expect; then \
 _RUNTEST = $(shell if test -f $(top_srcdir)/../dejagnu/runtest; then \
 	     echo $(top_srcdir)/../dejagnu/runtest; else echo runtest; fi)
 RUNTEST = "$(_RUNTEST) $(AM_RUNTESTFLAGS)"
+
+# Used for support non-fallback offloading.
+export OFFLOAD_TARGETS = $(offload_targets)
+export OFFLOAD_ADDITIONAL_OPTIONS = $(offload_additional_options)
+export OFFLOAD_ADDITIONAL_LIB_PATHS = $(offload_additional_lib_paths)
diff --git a/libgomp/testsuite/Makefile.in b/libgomp/testsuite/Makefile.in
index 5273eaa2b35..2f845f0c7cb 100644
--- a/libgomp/testsuite/Makefile.in
+++ b/libgomp/testsuite/Makefile.in
@@ -184,6 +184,9 @@ lt_host_flags = @lt_host_flags@
 mandir = @mandir@
 mkdir_p = @mkdir_p@
 multi_basedir = @multi_basedir@
+offload_additional_lib_paths = @offload_additional_lib_paths@
+offload_additional_options = @offload_additional_options@
+offload_targets = @offload_targets@
 oldincludedir = @oldincludedir@
 pdfdir = @pdfdir@
 prefix = @prefix@
@@ -408,6 +411,11 @@ uninstall-am:
 	uninstall uninstall-am
 
 
+# Used for support non-fallback offloading.
+export OFFLOAD_TARGETS = $(offload_targets)
+export OFFLOAD_ADDITIONAL_OPTIONS = $(offload_additional_options)
+export OFFLOAD_ADDITIONAL_LIB_PATHS = $(offload_additional_lib_paths)
+
 # Tell versions [3.59,3.63) of GNU make to not export all variables.
 # Otherwise a system limit (for SysV at least) may be exceeded.
 .NOEXPORT:
diff --git a/libgomp/testsuite/lib/libgomp.exp b/libgomp/testsuite/lib/libgomp.exp
index 071e22fbf30..a1546847323 100644
--- a/libgomp/testsuite/lib/libgomp.exp
+++ b/libgomp/testsuite/lib/libgomp.exp
@@ -107,6 +107,25 @@ proc libgomp_init { args } {
     # Compute what needs to be put into LD_LIBRARY_PATH
     set always_ld_library_path ".:${blddir}/.libs"
 
+    # Get offload-related variables from environment (exported by Makefile)
+    set offload_targets [getenv OFFLOAD_TARGETS]
+    set offload_additional_options [getenv OFFLOAD_ADDITIONAL_OPTIONS]
+    set offload_additional_lib_paths [getenv OFFLOAD_ADDITIONAL_LIB_PATHS]
+
+    # Add liboffloadmic build directory in LD_LIBRARY_PATH to support
+    # non-fallback testing for Intel MIC targets
+    if { [string match "*-intelmic-*" $offload_targets]
+	|| [string match "*-intelmicemul-*" $offload_targets] } {
+	append always_ld_library_path ":${blddir}/../liboffloadmic/.libs"
+	append always_ld_library_path ":${blddir}/../liboffloadmic/plugin/.libs"
+	# libstdc++ is required by liboffloadmic
+	append always_ld_library_path ":${blddir}/../libstdc++-v3/src/.libs"
+    }
+
+    if { $offload_additional_lib_paths != "" } {
+	append always_ld_library_path "${offload_additional_lib_paths}"
+    }
+
     # Compute what needs to be added to the existing LD_LIBRARY_PATH.
     if {$gccdir != ""} {
 	# Add AIX pthread directory first.
@@ -169,6 +188,12 @@ proc libgomp_init { args } {
 
     # Disable color diagnostics
     lappend ALWAYS_CFLAGS "additional_flags=-fdiagnostics-color=never"
+
+    # Used for support non-fallback offloading.
+    # Help GCC to find target mkoffload.
+    if { $offload_additional_options != "" } {
+	lappend ALWAYS_CFLAGS "additional_flags=${offload_additional_options}"
+    }
 }
 
 #