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# This whole file adapted from libgomp.c/c.exp.
if [info exists lang_library_path] then {
unset lang_library_path
unset lang_link_flags
}
if [info exists lang_test_file_found] then {
unset lang_test_file_found
}
if [info exists lang_include_flags] then {
unset lang_include_flags
}
load_lib libgomp-dg.exp
load_gcc_lib gcc-dg.exp
load_gcc_lib torture-options.exp
proc check_effective_target_c { } {
return 1
}
proc check_effective_target_c++ { } {
return 0
}
# Initialize dg.
dg-init
torture-init
# Turn on OpenACC.
lappend ALWAYS_CFLAGS "additional_flags=-fopenacc"
# Gather a list of all tests.
set tests [lsort [concat \
[find $srcdir/$subdir *.c] \
[find $srcdir/$subdir/../libgomp.oacc-c-c++-common *.c]]]
set ld_library_path $always_ld_library_path
append ld_library_path [gcc-set-multilib-library-path $GCC_UNDER_TEST]
set_ld_library_path_env_vars
# Test with all available offload targets, and with offloading disabled.
set SAVE_ALWAYS_CFLAGS "$ALWAYS_CFLAGS"
foreach offload_target [concat [split $offload_targets ","] "disable"] {
set ALWAYS_CFLAGS "$SAVE_ALWAYS_CFLAGS"
global openacc_device_type
set openacc_device_type [offload_target_to_openacc_device_type $offload_target]
set tagopt "-DACC_DEVICE_TYPE_$openacc_device_type=1"
switch $openacc_device_type {
"" {
unsupported "$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 offloading: supported, but hardware not accessible"
continue
}
# Copy ptx file (TEMPORARY)
remote_download host $srcdir/libgomp.oacc-c-c++-common/subr.ptx
# Where timer.h lives
lappend ALWAYS_CFLAGS "additional_flags=-I${srcdir}/libgomp.oacc-c-c++-common"
set acc_mem_shared 0
}
radeon {
if { ![check_effective_target_openacc_radeon_accel_present] } {
# Don't bother; execution testing is going to FAIL.
untested "$subdir $offload_target offloading: supported, but hardware not accessible"
continue
}
set acc_mem_shared 0
}
default {
error "Unknown OpenACC device type: $openacc_device_type (offload target: $offload_target)"
}
}
set tagopt "$tagopt -DACC_MEM_SHARED=$acc_mem_shared"
# To avoid compilation overhead, and to keep simple '-foffload=[...]'
# handling in test cases, by default only build for the offload target
# that we're actually going to test.
set tagopt "$tagopt -foffload=$offload_target"
# Force usage of the corresponding OpenACC device type.
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
# testing for test cases that deal with offloading, which most of all
# OpenACC test cases are. We enable torture testing, but limit it to
# -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 -glob $offload_target {
disable {
set-torture-options [list \
{ -O2 } ]
}
default {
set-torture-options [list \
{ -O0 } \
{ -O2 } ]
}
}
gcc-dg-runtest $tests "$tagopt" ""
}
unset offload_target
# All done.
torture-finish
dg-finish
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