Hi! Ping.
On Wed, 13 Jul 2016 12:37:07 +0200, I wrote: > As discussed before, "offloading compilation is slow; I suppose because > of having to invoke several tools (LTO streaming -> mkoffload -> offload > compilers, assemblers, linkers -> combine the resulting images; but I > have not done a detailed analysis on that)". For this reason it is > beneficial (that is, it is measurable in libgomp testing wall time) to > limit offload compilation to the one (in the OpenACC case) offload target > that we're actually going to test (that is, execute). Another reason is > that -foffload=-fdump-tree-[...] produces clashes (that is, > unpredicatable outcome) in the file names of offload compilations' dump > files' names. Here is a patch to implement that, to specify > -foffload=[...] during libgomp OpenACC testing. As that has been > challenged before: > > | [...] there actually is a difference between offload_plugins and > | offload_targets (for example, "intelmic" > | vs. "x86_64-intelmicemul-linux-gnu"), and I'm using both variables -- > | to avoid having to translate the more specific > | "x86_64-intelmicemul-linux-gnu" (which we required in the test harness) > | into the less specific "intelmic" (for plugin loading) in > | libgomp/target.c. I can do that, so that we can continue to use just a > | single offload_targets variable, but I consider that a less elegant > | solution. > > OK for trunk? > > commit 5fdb515826769ebb36bc5c49a3ffac4d17a8a589 > Author: Thomas Schwinge <tho...@codesourcery.com> > Date: Wed Jul 13 11:37:16 2016 +0200 > > libgomp: In OpenACC testing, cycle though $offload_targets, and by > default only build for the offload target that we're actually going to test > > libgomp/ > * plugin/configfrag.ac: Enumerate both offload plugins and offload > targets. > (OFFLOAD_PLUGINS): Renamed from OFFLOAD_TARGETS. > * target.c (gomp_target_init): Adjust to that. > * testsuite/lib/libgomp.exp: Likewise. > (offload_targets_s, offload_targets_s_openacc): Remove variables. > (offload_target_to_openacc_device_type): New proc. > (check_effective_target_openacc_nvidia_accel_selected) > (check_effective_target_openacc_host_selected): Examine > $openacc_device_type instead of $offload_target_openacc. > * Makefile.in: Regenerate. > * config.h.in: Likewise. > * configure: Likewise. > * testsuite/Makefile.in: Likewise. > * testsuite/libgomp.oacc-c++/c++.exp: Cycle through > $offload_targets (plus "disable") instead of > $offload_targets_s_openacc, and add "-foffload=$offload_target" to > tagopt. > * testsuite/libgomp.oacc-c/c.exp: Likewise. > * testsuite/libgomp.oacc-fortran/fortran.exp: Likewise. > --- > libgomp/Makefile.in | 1 + > libgomp/config.h.in | 4 +- > libgomp/configure | 44 +++++++------ > libgomp/plugin/configfrag.ac | 39 +++++++----- > libgomp/target.c | 8 +-- > libgomp/testsuite/Makefile.in | 1 + > libgomp/testsuite/lib/libgomp.exp | 72 > ++++++++++------------ > libgomp/testsuite/libgomp.oacc-c++/c++.exp | 30 +++++---- > libgomp/testsuite/libgomp.oacc-c/c.exp | 30 +++++---- > libgomp/testsuite/libgomp.oacc-fortran/fortran.exp | 22 ++++--- > 10 files changed, 142 insertions(+), 109 deletions(-) > > diff --git libgomp/Makefile.in libgomp/Makefile.in > index 88c8517..33be8c7 100644 > --- libgomp/Makefile.in > +++ libgomp/Makefile.in > @@ -380,6 +380,7 @@ mkdir_p = @mkdir_p@ > multi_basedir = @multi_basedir@ > offload_additional_lib_paths = @offload_additional_lib_paths@ > offload_additional_options = @offload_additional_options@ > +offload_plugins = @offload_plugins@ > offload_targets = @offload_targets@ > oldincludedir = @oldincludedir@ > pdfdir = @pdfdir@ > diff --git libgomp/config.h.in libgomp/config.h.in > index 226ac53..28f7b2d 100644 > --- libgomp/config.h.in > +++ libgomp/config.h.in > @@ -98,8 +98,8 @@ > */ > #undef LT_OBJDIR > > -/* Define to offload targets, separated by commas. */ > -#undef OFFLOAD_TARGETS > +/* Define to offload plugins, separated by commas. */ > +#undef OFFLOAD_PLUGINS > > /* Name of package */ > #undef PACKAGE > diff --git libgomp/configure libgomp/configure > index 8d03eb6..4baab20 100755 > --- libgomp/configure > +++ libgomp/configure > @@ -633,6 +633,8 @@ PLUGIN_NVPTX_FALSE > PLUGIN_NVPTX_TRUE > offload_additional_lib_paths > offload_additional_options > +offload_targets > +offload_plugins > PLUGIN_HSA_LIBS > PLUGIN_HSA_LDFLAGS > PLUGIN_HSA_CPPFLAGS > @@ -646,7 +648,6 @@ PLUGIN_NVPTX_CPPFLAGS > PLUGIN_NVPTX > CUDA_DRIVER_LIB > CUDA_DRIVER_INCLUDE > -offload_targets > libtool_VERSION > ac_ct_FC > FCFLAGS > @@ -11145,7 +11146,7 @@ else > lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 > lt_status=$lt_dlunknown > cat > conftest.$ac_ext <<_LT_EOF > -#line 11148 "configure" > +#line 11149 "configure" > #include "confdefs.h" > > #if HAVE_DLFCN_H > @@ -11251,7 +11252,7 @@ else > lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 > lt_status=$lt_dlunknown > cat > conftest.$ac_ext <<_LT_EOF > -#line 11254 "configure" > +#line 11255 "configure" > #include "confdefs.h" > > #if HAVE_DLFCN_H > @@ -15140,8 +15141,6 @@ esac > # see the files COPYING3 and COPYING.RUNTIME respectively. If not, see > # <http://www.gnu.org/licenses/>. > > -offload_targets= > - > plugin_support=yes > { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlsym in -ldl" >&5 > $as_echo_n "checking for dlsym in -ldl... " >&6; } > @@ -15320,7 +15319,13 @@ PLUGIN_HSA_LIBS= > > > > -# Get offload targets and path to install tree of offloading compiler. > +# Parse offload targets, and figure out libgomp plugin, and configure the > +# corresponding offload compiler. offload_plugins and offload_targets will > be > +# populated in the same order. > +offload_plugins= > +offload_targets= > + > + > offload_additional_options= > offload_additional_lib_paths= > > @@ -15329,13 +15334,13 @@ if test x"$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/=.*//'` > - tgt_name= > + tgt_plugin= > case $tgt in > *-intelmic-* | *-intelmicemul-*) > - tgt_name=intelmic > + tgt_plugin=intelmic > ;; > nvptx*) > - tgt_name=nvptx > + tgt_plugin=nvptx > PLUGIN_NVPTX=$tgt > PLUGIN_NVPTX_CPPFLAGS=$CUDA_DRIVER_CPPFLAGS > PLUGIN_NVPTX_LDFLAGS=$CUDA_DRIVER_LDFLAGS > @@ -15373,7 +15378,7 @@ rm -f core conftest.err conftest.$ac_objext \ > ;; > esac > ;; > - hsa*) > + hsa) > case "${target}" in > x86_64-*-*) > case " ${CC} ${CFLAGS} " in > @@ -15381,7 +15386,7 @@ rm -f core conftest.err conftest.$ac_objext \ > PLUGIN_HSA=0 > ;; > *) > - tgt_name=hsa > + tgt_plugin=hsa > PLUGIN_HSA=$tgt > PLUGIN_HSA_CPPFLAGS=$HSA_RUNTIME_CPPFLAGS > PLUGIN_HSA_LDFLAGS="$HSA_RUNTIME_LDFLAGS $HSA_KMT_LDFLAGS" > @@ -15414,7 +15419,7 @@ rm -f core conftest.err conftest.$ac_objext \ > LDFLAGS=$PLUGIN_HSA_save_LDFLAGS > LIBS=$PLUGIN_HSA_save_LIBS > case $PLUGIN_HSA in > - hsa*) > + hsa) > HSA_PLUGIN=0 > as_fn_error "HSA run-time package required for HSA support" > "$LINENO" 5 > ;; > @@ -15431,16 +15436,19 @@ rm -f core conftest.err conftest.$ac_objext \ > as_fn_error "unknown offload target specified" "$LINENO" 5 > ;; > esac > - if test x"$tgt_name" = x; then > + if test x"$tgt_plugin" = x; then > # Don't configure libgomp for this offloading target if we don't build > # the corresponding plugin. > continue > - elif test x"$offload_targets" = x; then > - offload_targets=$tgt_name > + elif test x"$offload_plugins" = x; then > + offload_plugins=$tgt_plugin > + offload_targets=$tgt > else > - offload_targets=$offload_targets,$tgt_name > + offload_plugins=$offload_plugins,$tgt_plugin > + offload_targets=$offload_targets,$tgt > fi > - if test "$tgt_name" = hsa; then > + # Configure additional search paths. > + if test "$tgt_plugin" = hsa; then > # Offloading compilation is all handled by the target compiler. > : > elif test x"$tgt_dir" != x; then > @@ -15454,7 +15462,7 @@ rm -f core conftest.err conftest.$ac_objext \ > fi > > cat >>confdefs.h <<_ACEOF > -#define OFFLOAD_TARGETS "$offload_targets" > +#define OFFLOAD_PLUGINS "$offload_plugins" > _ACEOF > > if test $PLUGIN_NVPTX = 1; then > diff --git libgomp/plugin/configfrag.ac libgomp/plugin/configfrag.ac > index 88b4156..de0a6f6 100644 > --- libgomp/plugin/configfrag.ac > +++ libgomp/plugin/configfrag.ac > @@ -26,8 +26,6 @@ > # see the files COPYING3 and COPYING.RUNTIME respectively. If not, see > # <http://www.gnu.org/licenses/>. > > -offload_targets= > -AC_SUBST(offload_targets) > plugin_support=yes > AC_CHECK_LIB(dl, dlsym, , [plugin_support=no]) > if test x"$plugin_support" = xyes; then > @@ -142,7 +140,13 @@ AC_SUBST(PLUGIN_HSA_LIBS) > > > > -# Get offload targets and path to install tree of offloading compiler. > +# Parse offload targets, and figure out libgomp plugin, and configure the > +# corresponding offload compiler. offload_plugins and offload_targets will > be > +# populated in the same order. > +offload_plugins= > +offload_targets= > +AC_SUBST(offload_plugins) > +AC_SUBST(offload_targets) > offload_additional_options= > offload_additional_lib_paths= > AC_SUBST(offload_additional_options) > @@ -151,13 +155,13 @@ 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/=.*//'` > - tgt_name= > + tgt_plugin= > case $tgt in > *-intelmic-* | *-intelmicemul-*) > - tgt_name=intelmic > + tgt_plugin=intelmic > ;; > nvptx*) > - tgt_name=nvptx > + tgt_plugin=nvptx > PLUGIN_NVPTX=$tgt > PLUGIN_NVPTX_CPPFLAGS=$CUDA_DRIVER_CPPFLAGS > PLUGIN_NVPTX_LDFLAGS=$CUDA_DRIVER_LDFLAGS > @@ -184,7 +188,7 @@ if test x"$enable_offload_targets" != x; then > ;; > esac > ;; > - hsa*) > + hsa) > case "${target}" in > x86_64-*-*) > case " ${CC} ${CFLAGS} " in > @@ -192,7 +196,7 @@ if test x"$enable_offload_targets" != x; then > PLUGIN_HSA=0 > ;; > *) > - tgt_name=hsa > + tgt_plugin=hsa > PLUGIN_HSA=$tgt > PLUGIN_HSA_CPPFLAGS=$HSA_RUNTIME_CPPFLAGS > PLUGIN_HSA_LDFLAGS="$HSA_RUNTIME_LDFLAGS $HSA_KMT_LDFLAGS" > @@ -214,7 +218,7 @@ if test x"$enable_offload_targets" != x; then > LDFLAGS=$PLUGIN_HSA_save_LDFLAGS > LIBS=$PLUGIN_HSA_save_LIBS > case $PLUGIN_HSA in > - hsa*) > + hsa) > HSA_PLUGIN=0 > AC_MSG_ERROR([HSA run-time package required for HSA > support]) > ;; > @@ -231,16 +235,19 @@ if test x"$enable_offload_targets" != x; then > AC_MSG_ERROR([unknown offload target specified]) > ;; > esac > - if test x"$tgt_name" = x; then > + if test x"$tgt_plugin" = x; then > # Don't configure libgomp for this offloading target if we don't build > # the corresponding plugin. > continue > - elif test x"$offload_targets" = x; then > - offload_targets=$tgt_name > + elif test x"$offload_plugins" = x; then > + offload_plugins=$tgt_plugin > + offload_targets=$tgt > else > - offload_targets=$offload_targets,$tgt_name > + offload_plugins=$offload_plugins,$tgt_plugin > + offload_targets=$offload_targets,$tgt > fi > - if test "$tgt_name" = hsa; then > + # Configure additional search paths. > + if test "$tgt_plugin" = hsa; then > # Offloading compilation is all handled by the target compiler. > : > elif test x"$tgt_dir" != x; then > @@ -252,8 +259,8 @@ if test x"$enable_offload_targets" != x; then > fi > done > fi > -AC_DEFINE_UNQUOTED(OFFLOAD_TARGETS, "$offload_targets", > - [Define to offload targets, separated by commas.]) > +AC_DEFINE_UNQUOTED(OFFLOAD_PLUGINS, "$offload_plugins", > + [Define to offload plugins, separated by commas.]) > AM_CONDITIONAL([PLUGIN_NVPTX], [test $PLUGIN_NVPTX = 1]) > AC_DEFINE_UNQUOTED([PLUGIN_NVPTX], [$PLUGIN_NVPTX], > [Define to 1 if the NVIDIA plugin is built, 0 if not.]) > diff --git libgomp/target.c libgomp/target.c > index 48b9ab8..2b7e627 100644 > --- libgomp/target.c > +++ libgomp/target.c > @@ -2474,9 +2474,9 @@ gomp_target_fini (void) > } > } > > -/* This function initializes the runtime needed for offloading. > - It parses the list of offload targets and tries to load the plugins for > - these targets. On return, the variables NUM_DEVICES and > NUM_DEVICES_OPENMP > +/* This function initializes the runtime for offloading. > + It parses the list of offload plugins, and tries to load these. > + On return, the variables NUM_DEVICES and NUM_DEVICES_OPENMP > will be set, and the array DEVICES initialized, containing descriptors for > corresponding devices, first the GOMP_OFFLOAD_CAP_OPENMP_400 ones, follows > by the others. */ > @@ -2493,7 +2493,7 @@ gomp_target_init (void) > num_devices = 0; > devices = NULL; > > - cur = OFFLOAD_TARGETS; > + cur = OFFLOAD_PLUGINS; > if (*cur) > do > { > diff --git libgomp/testsuite/Makefile.in libgomp/testsuite/Makefile.in > index 4dbb406..2092dcd 100644 > --- libgomp/testsuite/Makefile.in > +++ libgomp/testsuite/Makefile.in > @@ -223,6 +223,7 @@ mkdir_p = @mkdir_p@ > multi_basedir = @multi_basedir@ > offload_additional_lib_paths = @offload_additional_lib_paths@ > offload_additional_options = @offload_additional_options@ > +offload_plugins = @offload_plugins@ > offload_targets = @offload_targets@ > oldincludedir = @oldincludedir@ > pdfdir = @pdfdir@ > diff --git libgomp/testsuite/lib/libgomp.exp libgomp/testsuite/lib/libgomp.exp > index 1cb4991..4a25421 100644 > --- libgomp/testsuite/lib/libgomp.exp > +++ libgomp/testsuite/lib/libgomp.exp > @@ -36,28 +36,6 @@ load_gcc_lib fortran-modules.exp > # Try to load a test support file, built during libgomp configuration. > load_file libgomp-test-support.exp > > -# Populate offload_targets_s (offloading targets separated by a space), and > -# offload_targets_s_openacc (the same, but with OpenACC names; OpenACC spells > -# some of them a little differently). > -set offload_targets_s [split $offload_targets ","] > -set offload_targets_s_openacc {} > -foreach offload_target_openacc $offload_targets_s { > - # Translate to OpenACC names, or skip if not yet supported. > - switch $offload_target_openacc { > - intelmic { > - continue > - } > - nvptx { > - set offload_target_openacc "nvidia" > - } > - hsa { > - continue > - } > - } > - lappend offload_targets_s_openacc "$offload_target_openacc" > -} > -lappend offload_targets_s_openacc "host" > - > set dg-do-what-default run > > # > @@ -135,9 +113,9 @@ proc libgomp_init { args } { > set always_ld_library_path ".:${blddir}/.libs" > > # Add liboffloadmic build directory in LD_LIBRARY_PATH to support > - # non-fallback testing for Intel MIC targets > + # Intel MIC offloading testing. > global offload_targets > - if { [string match "*,intelmic,*" ",$offload_targets,"] } { > + if { [string match "*,*-intelmic*,*" ",$offload_targets,"] } { > append always_ld_library_path ":${blddir}/../liboffloadmic/.libs" > append always_ld_library_path ":${blddir}/../liboffloadmic/plugin/.libs" > # libstdc++ is required by liboffloadmic > @@ -245,8 +223,7 @@ 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. > + # Help GCC to find offload compilers' mkoffload. > global offload_additional_options > if { $offload_additional_options != "" } { > lappend ALWAYS_CFLAGS "additional_flags=${offload_additional_options}" > @@ -322,6 +299,28 @@ proc libgomp_option_proc { option } { > } > } > > +# Translate offload target to OpenACC device type. Return the empty string > if > +# not suitable or not yet supported, and "host" for offload target "disable". > +proc offload_target_to_openacc_device_type { offload_target } { > + switch -glob $offload_target { > + disable { > + return "host" > + } > + hsa { > + return "" > + } > + *-intelmic* { > + return "" > + } > + nvptx* { > + return "nvidia" > + } > + default { > + error "Unknwon offload target: $offload_target" > + } > + } > +} > + > # Return 1 if offload device is available. > proc check_effective_target_offload_device { } { > return [check_runtime_nocache offload_device_available_ { > @@ -373,29 +372,22 @@ proc > check_effective_target_openacc_nvidia_accel_present { } { > } "" ] > } > > -# Return 1 if at least one nvidia board is present, and the nvidia device > type > -# is selected by default by means of setting the environment variable > -# ACC_DEVICE_TYPE. > +# Return 1 if at least one nvidia board is present, and the OpenACC "nvidia" > +# device type is selected. > > proc check_effective_target_openacc_nvidia_accel_selected { } { > if { ![check_effective_target_openacc_nvidia_accel_present] } { > return 0; > } > - global offload_target_openacc > - if { $offload_target_openacc == "nvidia" } { > - return 1; > - } > - return 0; > + global openacc_device_type > + return [string match "nvidia" $openacc_device_type] > } > > -# Return 1 if the host target is selected for offloaded > +# Return 1 if the OpenACC "host" device type is selected. > > proc check_effective_target_openacc_host_selected { } { > - global offload_target_openacc > - if { $offload_target_openacc == "host" } { > - return 1; > - } > - return 0; > + global openacc_device_type > + return [string match "host" $openacc_device_type] > } > > # Return 1 if the selected OMP device is actually a HSA device > diff --git libgomp/testsuite/libgomp.oacc-c++/c++.exp > libgomp/testsuite/libgomp.oacc-c++/c++.exp > index 608b298..befb921 100644 > --- libgomp/testsuite/libgomp.oacc-c++/c++.exp > +++ libgomp/testsuite/libgomp.oacc-c++/c++.exp > @@ -70,18 +70,23 @@ if { $lang_test_file_found } { > set libstdcxx_includes "" > } > > - # Test OpenACC with available accelerators. > - foreach offload_target_openacc $offload_targets_s_openacc { > - set tagopt "-DACC_DEVICE_TYPE_$offload_target_openacc=1" > + # Test with all offload targets, and with offloading disabled. > + foreach offload_target [concat [split $offload_targets ","] "disable"] { > + set openacc_device_type [offload_target_to_openacc_device_type > $offload_target] > + set tagopt "-DACC_DEVICE_TYPE_$openacc_device_type=1" > > - switch $offload_target_openacc { > - host { > + switch $openacc_device_type { > + "" { > + untested "$subdir $offload_target offloading" > + continue > + } > + "host" { > set acc_mem_shared 1 > } > - nvidia { > + "nvidia" { > if { ![check_effective_target_openacc_nvidia_accel_present] } { > # Don't bother; execution testing is going to FAIL. > - untested "$subdir $offload_target_openacc offloading" > + untested "$subdir $offload_target offloading" > continue > } > > @@ -94,12 +99,15 @@ if { $lang_test_file_found } { > set acc_mem_shared 0 > } > default { > - set acc_mem_shared 0 > + error "Unknwon OpenACC device type: $openacc_device_type > (offload target: $offload_target)" > } > } > set tagopt "$tagopt -DACC_MEM_SHARED=$acc_mem_shared" > > - setenv ACC_DEVICE_TYPE $offload_target_openacc > + # To avoid overhead, by default only build for the offload target that > + # we're actually going to test. > + set tagopt "$tagopt -foffload=$offload_target" > + setenv ACC_DEVICE_TYPE $openacc_device_type > > # To get better test coverage for device-specific code that is only > # ever used in offloading configurations, we'd like more thorough > @@ -108,8 +116,8 @@ if { $lang_test_file_found } { > # -O0 and -O2 only, to avoid testing times exploding too much, under > # the assumption that between -O0 and -O[something] there is the > # biggest difference in the overall structure of the generated code. > - switch $offload_target_openacc { > - host { > + switch $offload_target { > + "disable" { > set-torture-options [list \ > { -O2 } ] > } > diff --git libgomp/testsuite/libgomp.oacc-c/c.exp > libgomp/testsuite/libgomp.oacc-c/c.exp > index b509a10..5355b87 100644 > --- libgomp/testsuite/libgomp.oacc-c/c.exp > +++ libgomp/testsuite/libgomp.oacc-c/c.exp > @@ -31,20 +31,25 @@ set ld_library_path $always_ld_library_path > append ld_library_path [gcc-set-multilib-library-path $GCC_UNDER_TEST] > set_ld_library_path_env_vars > > -# Test OpenACC with available accelerators. > +# Test with all offload targets, and with offloading disabled. > set SAVE_ALWAYS_CFLAGS "$ALWAYS_CFLAGS" > -foreach offload_target_openacc $offload_targets_s_openacc { > +foreach offload_target [concat [split $offload_targets ","] "disable"] { > set ALWAYS_CFLAGS "$SAVE_ALWAYS_CFLAGS" > - set tagopt "-DACC_DEVICE_TYPE_$offload_target_openacc=1" > + set openacc_device_type [offload_target_to_openacc_device_type > $offload_target] > + set tagopt "-DACC_DEVICE_TYPE_$openacc_device_type=1" > > - switch $offload_target_openacc { > - host { > + switch $openacc_device_type { > + "" { > + untested "$subdir $offload_target offloading" > + continue > + } > + "host" { > set acc_mem_shared 1 > } > - nvidia { > + "nvidia" { > if { ![check_effective_target_openacc_nvidia_accel_present] } { > # Don't bother; execution testing is going to FAIL. > - untested "$subdir $offload_target_openacc offloading" > + untested "$subdir $offload_target offloading" > continue > } > > @@ -57,12 +62,15 @@ foreach offload_target_openacc $offload_targets_s_openacc > { > set acc_mem_shared 0 > } > default { > - set acc_mem_shared 0 > + error "Unknwon OpenACC device type: $openacc_device_type (offload > target: $offload_target)" > } > } > set tagopt "$tagopt -DACC_MEM_SHARED=$acc_mem_shared" > > - setenv ACC_DEVICE_TYPE $offload_target_openacc > + # To avoid overhead, by default only build for the offload target that > + # we're actually going to test. > + set tagopt "$tagopt -foffload=$offload_target" > + setenv ACC_DEVICE_TYPE $openacc_device_type > > # To get better test coverage for device-specific code that is only > # ever used in offloading configurations, we'd like more thorough > @@ -71,8 +79,8 @@ foreach offload_target_openacc $offload_targets_s_openacc { > # -O0 and -O2 only, to avoid testing times exploding too much, under > # the assumption that between -O0 and -O[something] there is the > # biggest difference in the overall structure of the generated code. > - switch $offload_target_openacc { > - host { > + switch $offload_target { > + "disable" { > set-torture-options [list \ > { -O2 } ] > } > diff --git libgomp/testsuite/libgomp.oacc-fortran/fortran.exp > libgomp/testsuite/libgomp.oacc-fortran/fortran.exp > index 2d6b647..8507b67 100644 > --- libgomp/testsuite/libgomp.oacc-fortran/fortran.exp > +++ libgomp/testsuite/libgomp.oacc-fortran/fortran.exp > @@ -65,30 +65,38 @@ if { $lang_test_file_found } { > append ld_library_path [gcc-set-multilib-library-path $GCC_UNDER_TEST] > set_ld_library_path_env_vars > > - # Test OpenACC with available accelerators. > - foreach offload_target_openacc $offload_targets_s_openacc { > - set tagopt "-DACC_DEVICE_TYPE_$offload_target_openacc=1" > + # Test with all offload targets, and with offloading disabled. > + foreach offload_target [concat [split $offload_targets ","] "disable"] { > + set openacc_device_type [offload_target_to_openacc_device_type > $offload_target] > + set tagopt "-DACC_DEVICE_TYPE_$openacc_device_type=1" > > - switch $offload_target_openacc { > + switch $openacc_device_type { > + "" { > + untested "$subdir $offload_target offloading" > + continue > + } > host { > set acc_mem_shared 1 > } > nvidia { > if { ![check_effective_target_openacc_nvidia_accel_present] } { > # Don't bother; execution testing is going to FAIL. > - untested "$subdir $offload_target_openacc offloading" > + untested "$subdir $offload_target offloading" > continue > } > > set acc_mem_shared 0 > } > default { > - set acc_mem_shared 0 > + error "Unknwon OpenACC device type: $openacc_device_type > (offload target: $offload_target)" > } > } > set tagopt "$tagopt -DACC_MEM_SHARED=$acc_mem_shared" > > - setenv ACC_DEVICE_TYPE $offload_target_openacc > + # To avoid overhead, by default only build for the offload target that > + # we're actually going to test. > + set tagopt "$tagopt -foffload=$offload_target" > + setenv ACC_DEVICE_TYPE $openacc_device_type > > # For Fortran we're doing torture testing, as Fortran has far more tests > # with arrays etc. that testing just -O0 or -O2 is insufficient, that is Grüße Thomas
