runtime: introduce build targets for running benchmarks

This introduces the "bench" build target, which can be used to run
all benchmarks.

It is also possible to run subsets of benchmarks with the
"package/check" build targets by setting GOBENCH to a matching regex.

From-SVN: r212212

libgo/Makefile.am

@@ -1996,6 +1996,7 @@ BUILDPACKAGE = \
 	$(LTGOCOMPILE) -I . -c -fgo-pkgpath=`echo $@ | sed -e 's/.lo$$//' -e 's/-go$$//'` -o $@ $$files
 
 GOTESTFLAGS =
+GOBENCH = 
 
 # Check a package.
 CHECK = \
@@ -2015,6 +2016,8 @@ CHECK = \
 	rm -f $@-testsum $@-testlog; \
 	if test "$(USE_DEJAGNU)" = "yes"; then \
 	  $(SHELL) $(srcdir)/testsuite/gotest --dejagnu=yes --basedir=$(srcdir) --srcdir=$(srcdir)/go/$(@D) --pkgpath="$(@D)" --pkgfiles="$(go_$(subst /,_,$(@D))_files)" --testname="$(@D)" --goarch="$(GOARCH)" $(GOTESTFLAGS) $(go_$(subst /,_,$(@D))_test_files); \
+	elif test "$(GOBENCH)" != ""; then \
+	  $(SHELL) $(srcdir)/testsuite/gotest --basedir=$(srcdir) --srcdir=$(srcdir)/go/$(@D) --pkgpath="$(@D)" --pkgfiles="$(go_$(subst /,_,$(@D))_files)" --goarch="$(GOARCH)" --bench="$(GOBENCH)" $(GOTESTFLAGS) $(go_$(subst /,_,$(@D))_test_files); \
 	else \
 	  if $(SHELL) $(srcdir)/testsuite/gotest --basedir=$(srcdir) --srcdir=$(srcdir)/go/$(@D) --pkgpath="$(@D)" --pkgfiles="$(go_$(subst /,_,$(@D))_files)" --goarch="$(GOARCH)" $(GOTESTFLAGS) $(go_$(subst /,_,$(@D))_test_files) >>$@-testlog 2>&1; then \
 	    echo "PASS: $(@D)" >> $@-testlog; \
@@ -3845,6 +3848,9 @@ check-am:
 check-multi:
 	$(MULTIDO) $(AM_MAKEFLAGS) DO=check-am multi-do # $(MAKE)
 
+bench:
+	-@$(MAKE) -k $(TEST_PACKAGES) GOBENCH=.
+
 MOSTLYCLEAN_FILES = libgo.head libgo.sum.sep libgo.log.sep
 
 mostlyclean-local:

libgo/Makefile.in

@@ -2066,6 +2066,7 @@ BUILDPACKAGE = \
 	$(LTGOCOMPILE) -I . -c -fgo-pkgpath=`echo $@ | sed -e 's/.lo$$//' -e 's/-go$$//'` -o $@ $$files
 
 GOTESTFLAGS = 
+GOBENCH = 
 
 # Check a package.
 CHECK = \
@@ -2085,6 +2086,8 @@ CHECK = \
 	rm -f $@-testsum $@-testlog; \
 	if test "$(USE_DEJAGNU)" = "yes"; then \
 	  $(SHELL) $(srcdir)/testsuite/gotest --dejagnu=yes --basedir=$(srcdir) --srcdir=$(srcdir)/go/$(@D) --pkgpath="$(@D)" --pkgfiles="$(go_$(subst /,_,$(@D))_files)" --testname="$(@D)" --goarch="$(GOARCH)" $(GOTESTFLAGS) $(go_$(subst /,_,$(@D))_test_files); \
+	elif test "$(GOBENCH)" != ""; then \
+	  $(SHELL) $(srcdir)/testsuite/gotest --basedir=$(srcdir) --srcdir=$(srcdir)/go/$(@D) --pkgpath="$(@D)" --pkgfiles="$(go_$(subst /,_,$(@D))_files)" --goarch="$(GOARCH)" --bench="$(GOBENCH)" $(GOTESTFLAGS) $(go_$(subst /,_,$(@D))_test_files); \
 	else \
 	  if $(SHELL) $(srcdir)/testsuite/gotest --basedir=$(srcdir) --srcdir=$(srcdir)/go/$(@D) --pkgpath="$(@D)" --pkgfiles="$(go_$(subst /,_,$(@D))_files)" --goarch="$(GOARCH)" $(GOTESTFLAGS) $(go_$(subst /,_,$(@D))_test_files) >>$@-testlog 2>&1; then \
 	    echo "PASS: $(@D)" >> $@-testlog; \
@@ -6083,6 +6086,9 @@ check-am:
 check-multi:
 	$(MULTIDO) $(AM_MAKEFLAGS) DO=check-am multi-do # $(MAKE)
 
+bench:
+	-@$(MAKE) -k $(TEST_PACKAGES) GOBENCH=.
+
 mostlyclean-local:
 	find . -name '*.lo' -print | xargs $(LIBTOOL) --mode=clean rm -f
 	find . -name '*.$(OBJEXT)' -print | xargs rm -f

libgo/testsuite/gotest

@@ -36,6 +36,7 @@ dejagnu=no
 GOARCH=""
 timeout=240
 testname=""
+bench=""
 trace=false
 while $loop; do
 	case "x$1" in
@@ -124,6 +125,15 @@ while $loop; do
 		testname=`echo $1 | sed -e 's/^--testname=//'`
 		shift
 		;;
+	x--bench)
+		bench=$2
+		shift
+		shift
+		;;
+	x--bench=*)
+		bench=`echo $1 | sed -e 's/^--bench=//'`
+		shift
+		;;
 	x--trace)
 		trace=true
 		shift
@@ -473,20 +483,28 @@ xno)
 	fi
 	${GL} *.o ${GOLIBS}
 
-	if test "$trace" = "true"; then
-	    echo ./a.out -test.short -test.timeout=${timeout}s "$@"
-	fi
-	./a.out -test.short -test.timeout=${timeout}s "$@" &
-	pid=$!
-	(sleep `expr $timeout + 10`
-	    echo > gotest-timeout
-	    echo "timed out in gotest" 1>&2
-	    kill -9 $pid) &
-	alarmpid=$!
-	wait $pid
-	status=$?
-	if ! test -f gotest-timeout; then
-	    kill $alarmpid
+	if test "$bench" = ""; then
+		if test "$trace" = "true"; then
+		    echo ./a.out -test.short -test.timeout=${timeout}s "$@"
+		fi
+		./a.out -test.short -test.timeout=${timeout}s "$@" &
+		pid=$!
+		(sleep `expr $timeout + 10`
+		    echo > gotest-timeout
+		    echo "timed out in gotest" 1>&2
+		    kill -9 $pid) &
+		alarmpid=$!
+		wait $pid
+		status=$?
+		if ! test -f gotest-timeout; then
+		    kill $alarmpid
+		fi
+	else
+		if test "$trace" = "true"; then
+		    echo ./a.out -test.run=^\$ -test.bench="${bench}" "$@"
+		fi
+		./a.out -test.run=^\$ -test.bench="${bench}" "$@"
+		status=$?
 	fi
 	exit $status
 	;;