libphobos: Parallelize the libphobos testsuite

The removal of the check programs in libphobos means that all tests
will now be compiled one at a time, causing a notable slowdown in
comparison with the previous method of testing.

libphobos/ChangeLog:

2019-04-12  Iain Buclaw  <ibuclaw@gdcproject.org>

	* testsuite/Makefile.am:
	* testsuite/Makefile.am (AUTOMAKE_OPTIONS): Remove dejagnu.
	(RUNTEST): Remove variable.
	(RUNTESTDEFAULTFLAGS, check_p_subno, check_p_numbers0,
	check_p_numbers1, check_p_numbers2, check_p_numbers3,
	check_p_numbers4, check_p_numbers5, check_p_numbers6, check_p_numbers,
	check_p_subdirs, check_DEJAGNU_libphobos_targets): New variables.
	(site.exp, %/site.exp, check-DEJAGNU, check-am, clean-local): New
	rules written so that all the *.exp files are ran parallelized.
	(CLEANFILES): Add *.exe, *.o, and site.exp.
	* testsuite/Makefile.in: Regenerate.

From-SVN: r270303

2 files changed, 224 insertions, 69 deletions

diff --git a/libphobos/testsuite/Makefile.am b/libphobos/testsuite/Makefile.am
index def102941a7..55b2ba42640 100644
--- a/libphobos/testsuite/Makefile.am
+++ b/libphobos/testsuite/Makefile.am
@@ -17,7 +17,7 @@
 
 # Process this file with automake to produce Makefile.in.
 
-AUTOMAKE_OPTIONS = foreign dejagnu
+AUTOMAKE_OPTIONS = foreign
 
 # Setup the testing framework, if you have one
 EXPECT = $(shell if test -f $(top_builddir)/../expect/expect; then \
@@ -25,8 +25,110 @@ 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)
+RUNTESTDEFAULTFLAGS = --tool $$tool --srcdir $$srcdir
+
+check_p_subno=$(word 2,$(subst _, ,$*))
+check_p_numbers0:=1 2 3 4 5 6 7 8 9
+check_p_numbers1:=0 $(check_p_numbers0)
+check_p_numbers2:=$(foreach i,$(check_p_numbers0),$(addprefix $(i),$(check_p_numbers1)))
+check_p_numbers3:=$(addprefix 0,$(check_p_numbers1)) $(check_p_numbers2)
+check_p_numbers4:=$(foreach i,$(check_p_numbers0),$(addprefix $(i),$(check_p_numbers3)))
+check_p_numbers5:=$(addprefix 0,$(check_p_numbers3)) $(check_p_numbers4)
+check_p_numbers6:=$(foreach i,$(check_p_numbers0),$(addprefix $(i),$(check_p_numbers5)))
+check_p_numbers:=$(check_p_numbers0) $(check_p_numbers2) $(check_p_numbers4) $(check_p_numbers6)
+check_p_subdirs=$(wordlist 1,$(if $(GCC_TEST_PARALLEL_SLOTS),$(GCC_TEST_PARALLEL_SLOTS),10),$(check_p_numbers))
+check_DEJAGNU_libphobos_targets = $(addprefix check-DEJAGNUlibphobos,$(check_p_subdirs))
+$(check_DEJAGNU_libphobos_targets): check-DEJAGNUlibphobos%: libphobos%/site.exp
+
+site.exp: Makefile $(EXTRA_DEJAGNU_SITE_CONFIG)
+	@echo 'Making a new site.exp file ...'
+	@echo '## these variables are automatically generated by make ##' >site.tmp
+	@echo '# Do not edit here.  If you wish to override these values' >>site.tmp
+	@echo '# edit the last section' >>site.tmp
+	@echo 'set srcdir "$(srcdir)"' >>site.tmp
+	@echo "set objdir `pwd`" >>site.tmp
+	@echo 'set build_alias "$(build_alias)"' >>site.tmp
+	@echo 'set build_triplet $(build_triplet)' >>site.tmp
+	@echo 'set host_alias "$(host_alias)"' >>site.tmp
+	@echo 'set host_triplet $(host_triplet)' >>site.tmp
+	@echo 'set target_alias "$(target_alias)"' >>site.tmp
+	@echo 'set target_triplet $(target_triplet)' >>site.tmp
+	@list='$(EXTRA_DEJAGNU_SITE_CONFIG)'; for f in $$list; do \
+	  echo "## Begin content included from file $$f.  Do not modify. ##" \
+	   && cat `test -f "$$f" || echo '$(srcdir)/'`$$f \
+	   && echo "## End content included from file $$f. ##" \
+	   || exit 1; \
+	 done >> site.tmp
+	@echo "## End of auto-generated content; you can edit from here. ##" >> site.tmp
+	@if test -f site.exp; then \
+	   sed -e '1,/^## End of auto-generated content.*##/d' site.exp >> site.tmp; \
+	fi
+	@-rm -f site.bak
+	@test ! -f site.exp || mv site.exp site.bak
+	@mv site.tmp site.exp
+
+%/site.exp: site.exp
+	-@test -d $* || mkdir $*
+	@srcdir=`cd $(srcdir); ${PWD_COMMAND}`;
+	@objdir=`${PWD_COMMAND}`/$*; \
+	sed -e "s|^set srcdir .*$$|set srcdir $$srcdir|" \
+	    -e "s|^set objdir .*$$|set objdir $$objdir|" \
+	    site.exp > $*/site.exp.tmp
+	@-rm -f $*/site.bak
+	@test ! -f $*/site.exp || mv $*/site.exp $*/site.bak
+	@mv $*/site.exp.tmp $*/site.exp
+
+# Run the testsuite in normal mode.
+check-DEJAGNU $(check_DEJAGNU_libphobos_targets): check-DEJAGNU%: site.exp
+	$(if $*,@)AR="$(AR)"; export AR; \
+	RANLIB="$(RANLIB)"; export RANLIB; \
+	if [ -z "$*" ] && [ -n "$(filter -j%, $(MFLAGS))" ]; then \
+	  rm -rf libphobos-parallel || true; \
+	  mkdir libphobos-parallel; \
+	  $(MAKE) $(AM_MAKEFLAGS) $(check_DEJAGNU_libphobos_targets); \
+	  rm -rf libphobos-parallel || true; \
+	  for idx in $(check_p_subdirs); do \
+	    if [ -d libphobos$$idx ]; then \
+	      mv -f libphobos$$idx/libphobos.sum libphobos$$idx/libphobos.sum.sep; \
+	      mv -f libphobos$$idx/libphobos.log libphobos$$idx/libphobos.log.sep; \
+	    fi; \
+	  done; \
+	  $(SHELL) $(srcdir)/../../contrib/dg-extract-results.sh \
+	    libphobos[0-9]*/libphobos.sum.sep > libphobos.sum; \
+	  $(SHELL) $(srcdir)/../../contrib/dg-extract-results.sh -L \
+	    libphobos[0-9]*/libphobos.log.sep > libphobos.log; \
+	  exit 0; \
+	fi; \
+	srcdir=`$(am__cd) $(srcdir) && pwd`; export srcdir; \
+	EXPECT=$(EXPECT); export EXPECT; \
+	runtest=$(_RUNTEST); \
+	if [ -z "$$runtest" ]; then runtest=runtest; fi; \
+	tool=libphobos; \
+	if [ -n "$*" ]; then \
+	  if [ -f libphobos-parallel/finished ]; then rm -rf "$*"; exit 0; fi; \
+	  GCC_RUNTEST_PARALLELIZE_DIR=`${PWD_COMMAND}`/libphobos-parallel; \
+	  export GCC_RUNTEST_PARALLELIZE_DIR; \
+	  cd "$*"; \
+	fi; \
+	if $(SHELL) -c "$$runtest --version" > /dev/null 2>&1; then \
+	  $$runtest $(AM_RUNTESTFLAGS) $(RUNTESTDEFAULTFLAGS) \
+		    $(RUNTESTFLAGS); \
+	  if [ -n "$*" ]; then \
+	    touch $$GCC_RUNTEST_PARALLELIZE_DIR/finished; \
+	  fi; \
+	else \
+	  echo "WARNING: could not find \`runtest'" 1>&2; :;\
+	fi
+
+check-am:
+	$(MAKE) $(AM_MAKEFLAGS) check-DEJAGNU
+
+.PHONY: check-DEJAGNU
 
 AM_MAKEFLAGS = "EXEEXT=$(EXEEXT)"
 
-CLEANFILES = *.log *.sum
+CLEANFILES = *.exe *.log *.o *.sum site.exp
+
+# To remove runtest-parallel directories.
+clean-local:
+	rm -rf libphobos*
diff --git a/libphobos/testsuite/Makefile.in b/libphobos/testsuite/Makefile.in
index 78107d22680..b81209b9251 100644
--- a/libphobos/testsuite/Makefile.in
+++ b/libphobos/testsuite/Makefile.in
@@ -133,8 +133,6 @@ am__can_run_installinfo = \
     *) (install-info --version) >/dev/null 2>&1;; \
   esac
 am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)
-DEJATOOL = $(PACKAGE)
-RUNTESTDEFAULTFLAGS = --tool $$tool --srcdir $$srcdir
 ACLOCAL = @ACLOCAL@
 AMTAR = @AMTAR@
 AM_DEFAULT_VERBOSITY = @AM_DEFAULT_VERBOSITY@
@@ -278,7 +276,7 @@ target_vendor = @target_vendor@
 top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
-AUTOMAKE_OPTIONS = foreign dejagnu
+AUTOMAKE_OPTIONS = foreign
 
 # Setup the testing framework, if you have one
 EXPECT = $(shell if test -f $(top_builddir)/../expect/expect; then \
@@ -287,9 +285,20 @@ 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)
+RUNTESTDEFAULTFLAGS = --tool $$tool --srcdir $$srcdir
+check_p_subno = $(word 2,$(subst _, ,$*))
+check_p_numbers0 := 1 2 3 4 5 6 7 8 9
+check_p_numbers1 := 0 $(check_p_numbers0)
+check_p_numbers2 := $(foreach i,$(check_p_numbers0),$(addprefix $(i),$(check_p_numbers1)))
+check_p_numbers3 := $(addprefix 0,$(check_p_numbers1)) $(check_p_numbers2)
+check_p_numbers4 := $(foreach i,$(check_p_numbers0),$(addprefix $(i),$(check_p_numbers3)))
+check_p_numbers5 := $(addprefix 0,$(check_p_numbers3)) $(check_p_numbers4)
+check_p_numbers6 := $(foreach i,$(check_p_numbers0),$(addprefix $(i),$(check_p_numbers5)))
+check_p_numbers := $(check_p_numbers0) $(check_p_numbers2) $(check_p_numbers4) $(check_p_numbers6)
+check_p_subdirs = $(wordlist 1,$(if $(GCC_TEST_PARALLEL_SLOTS),$(GCC_TEST_PARALLEL_SLOTS),10),$(check_p_numbers))
+check_DEJAGNU_libphobos_targets = $(addprefix check-DEJAGNUlibphobos,$(check_p_subdirs))
 AM_MAKEFLAGS = "EXEEXT=$(EXEEXT)"
-CLEANFILES = *.log *.sum
+CLEANFILES = *.exe *.log *.o *.sum site.exp
 all: all-am
 
 .SUFFIXES:
@@ -336,52 +345,7 @@ ctags CTAGS:
 
 cscope cscopelist:
 
-
-check-DEJAGNU: site.exp
-	srcdir='$(srcdir)'; export srcdir; \
-	EXPECT=$(EXPECT); export EXPECT; \
-	if $(SHELL) -c "$(RUNTEST) --version" > /dev/null 2>&1; then \
-	  exit_status=0; l='$(DEJATOOL)'; for tool in $$l; do \
-	    if $(RUNTEST) $(AM_RUNTESTFLAGS) $(RUNTESTDEFAULTFLAGS) $(RUNTESTFLAGS); \
-	    then :; else exit_status=1; fi; \
-	  done; \
-	else echo "WARNING: could not find '$(RUNTEST)'" 1>&2; :;\
-	fi; \
-	exit $$exit_status
-site.exp: Makefile $(EXTRA_DEJAGNU_SITE_CONFIG)
-	@echo 'Making a new site.exp file ...'
-	@echo '## these variables are automatically generated by make ##' >site.tmp
-	@echo '# Do not edit here.  If you wish to override these values' >>site.tmp
-	@echo '# edit the last section' >>site.tmp
-	@echo 'set srcdir "$(srcdir)"' >>site.tmp
-	@echo "set objdir `pwd`" >>site.tmp
-	@echo 'set build_alias "$(build_alias)"' >>site.tmp
-	@echo 'set build_triplet $(build_triplet)' >>site.tmp
-	@echo 'set host_alias "$(host_alias)"' >>site.tmp
-	@echo 'set host_triplet $(host_triplet)' >>site.tmp
-	@echo 'set target_alias "$(target_alias)"' >>site.tmp
-	@echo 'set target_triplet $(target_triplet)' >>site.tmp
-	@list='$(EXTRA_DEJAGNU_SITE_CONFIG)'; for f in $$list; do \
-	  echo "## Begin content included from file $$f.  Do not modify. ##" \
-	   && cat `test -f "$$f" || echo '$(srcdir)/'`$$f \
-	   && echo "## End content included from file $$f. ##" \
-	   || exit 1; \
-	 done >> site.tmp
-	@echo "## End of auto-generated content; you can edit from here. ##" >> site.tmp
-	@if test -f site.exp; then \
-	   sed -e '1,/^## End of auto-generated content.*##/d' site.exp >> site.tmp; \
-	 fi
-	@-rm -f site.bak
-	@test ! -f site.exp || mv site.exp site.bak
-	@mv site.tmp site.exp
-
-distclean-DEJAGNU:
-	-rm -f site.exp site.bak
-	-l='$(DEJATOOL)'; for tool in $$l; do \
-	  rm -f $$tool.sum $$tool.log; \
-	done
 check-am: all-am
-	$(MAKE) $(AM_MAKEFLAGS) check-DEJAGNU
 check: check-am
 all-am: Makefile
 installdirs:
@@ -418,11 +382,11 @@ maintainer-clean-generic:
 	@echo "it deletes files that may require special tools to rebuild."
 clean: clean-am
 
-clean-am: clean-generic clean-libtool mostlyclean-am
+clean-am: clean-generic clean-libtool clean-local mostlyclean-am
 
 distclean: distclean-am
 	-rm -f Makefile
-distclean-am: clean-am distclean-DEJAGNU distclean-generic
+distclean-am: clean-am distclean-generic
 
 dvi: dvi-am
 
@@ -482,23 +446,112 @@ ps-am:
 
 uninstall-am:
 
-.MAKE: check-am install-am install-strip
-
-.PHONY: all all-am check check-DEJAGNU check-am clean clean-generic \
-	clean-libtool cscopelist-am ctags-am distclean \
-	distclean-DEJAGNU distclean-generic distclean-libtool dvi \
-	dvi-am html html-am info info-am install install-am \
-	install-data install-data-am install-dvi install-dvi-am \
-	install-exec install-exec-am install-html install-html-am \
-	install-info install-info-am install-man install-pdf \
-	install-pdf-am install-ps install-ps-am install-strip \
-	installcheck installcheck-am installdirs maintainer-clean \
-	maintainer-clean-generic mostlyclean mostlyclean-generic \
-	mostlyclean-libtool pdf pdf-am ps ps-am tags-am uninstall \
-	uninstall-am
+.MAKE: install-am install-strip
+
+.PHONY: all all-am check check-am clean clean-generic clean-libtool \
+	clean-local cscopelist-am ctags-am distclean distclean-generic \
+	distclean-libtool dvi dvi-am html html-am info info-am install \
+	install-am install-data install-data-am install-dvi \
+	install-dvi-am install-exec install-exec-am install-html \
+	install-html-am install-info install-info-am install-man \
+	install-pdf install-pdf-am install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	tags-am uninstall uninstall-am
 
 .PRECIOUS: Makefile
 
+$(check_DEJAGNU_libphobos_targets): check-DEJAGNUlibphobos%: libphobos%/site.exp
+
+site.exp: Makefile $(EXTRA_DEJAGNU_SITE_CONFIG)
+	@echo 'Making a new site.exp file ...'
+	@echo '## these variables are automatically generated by make ##' >site.tmp
+	@echo '# Do not edit here.  If you wish to override these values' >>site.tmp
+	@echo '# edit the last section' >>site.tmp
+	@echo 'set srcdir "$(srcdir)"' >>site.tmp
+	@echo "set objdir `pwd`" >>site.tmp
+	@echo 'set build_alias "$(build_alias)"' >>site.tmp
+	@echo 'set build_triplet $(build_triplet)' >>site.tmp
+	@echo 'set host_alias "$(host_alias)"' >>site.tmp
+	@echo 'set host_triplet $(host_triplet)' >>site.tmp
+	@echo 'set target_alias "$(target_alias)"' >>site.tmp
+	@echo 'set target_triplet $(target_triplet)' >>site.tmp
+	@list='$(EXTRA_DEJAGNU_SITE_CONFIG)'; for f in $$list; do \
+	  echo "## Begin content included from file $$f.  Do not modify. ##" \
+	   && cat `test -f "$$f" || echo '$(srcdir)/'`$$f \
+	   && echo "## End content included from file $$f. ##" \
+	   || exit 1; \
+	 done >> site.tmp
+	@echo "## End of auto-generated content; you can edit from here. ##" >> site.tmp
+	@if test -f site.exp; then \
+	   sed -e '1,/^## End of auto-generated content.*##/d' site.exp >> site.tmp; \
+	fi
+	@-rm -f site.bak
+	@test ! -f site.exp || mv site.exp site.bak
+	@mv site.tmp site.exp
+
+%/site.exp: site.exp
+	-@test -d $* || mkdir $*
+	@srcdir=`cd $(srcdir); ${PWD_COMMAND}`;
+	@objdir=`${PWD_COMMAND}`/$*; \
+	sed -e "s|^set srcdir .*$$|set srcdir $$srcdir|" \
+	    -e "s|^set objdir .*$$|set objdir $$objdir|" \
+	    site.exp > $*/site.exp.tmp
+	@-rm -f $*/site.bak
+	@test ! -f $*/site.exp || mv $*/site.exp $*/site.bak
+	@mv $*/site.exp.tmp $*/site.exp
+
+# Run the testsuite in normal mode.
+check-DEJAGNU $(check_DEJAGNU_libphobos_targets): check-DEJAGNU%: site.exp
+	$(if $*,@)AR="$(AR)"; export AR; \
+	RANLIB="$(RANLIB)"; export RANLIB; \
+	if [ -z "$*" ] && [ -n "$(filter -j%, $(MFLAGS))" ]; then \
+	  rm -rf libphobos-parallel || true; \
+	  mkdir libphobos-parallel; \
+	  $(MAKE) $(AM_MAKEFLAGS) $(check_DEJAGNU_libphobos_targets); \
+	  rm -rf libphobos-parallel || true; \
+	  for idx in $(check_p_subdirs); do \
+	    if [ -d libphobos$$idx ]; then \
+	      mv -f libphobos$$idx/libphobos.sum libphobos$$idx/libphobos.sum.sep; \
+	      mv -f libphobos$$idx/libphobos.log libphobos$$idx/libphobos.log.sep; \
+	    fi; \
+	  done; \
+	  $(SHELL) $(srcdir)/../../contrib/dg-extract-results.sh \
+	    libphobos[0-9]*/libphobos.sum.sep > libphobos.sum; \
+	  $(SHELL) $(srcdir)/../../contrib/dg-extract-results.sh -L \
+	    libphobos[0-9]*/libphobos.log.sep > libphobos.log; \
+	  exit 0; \
+	fi; \
+	srcdir=`$(am__cd) $(srcdir) && pwd`; export srcdir; \
+	EXPECT=$(EXPECT); export EXPECT; \
+	runtest=$(_RUNTEST); \
+	if [ -z "$$runtest" ]; then runtest=runtest; fi; \
+	tool=libphobos; \
+	if [ -n "$*" ]; then \
+	  if [ -f libphobos-parallel/finished ]; then rm -rf "$*"; exit 0; fi; \
+	  GCC_RUNTEST_PARALLELIZE_DIR=`${PWD_COMMAND}`/libphobos-parallel; \
+	  export GCC_RUNTEST_PARALLELIZE_DIR; \
+	  cd "$*"; \
+	fi; \
+	if $(SHELL) -c "$$runtest --version" > /dev/null 2>&1; then \
+	  $$runtest $(AM_RUNTESTFLAGS) $(RUNTESTDEFAULTFLAGS) \
+		    $(RUNTESTFLAGS); \
+	  if [ -n "$*" ]; then \
+	    touch $$GCC_RUNTEST_PARALLELIZE_DIR/finished; \
+	  fi; \
+	else \
+	  echo "WARNING: could not find \`runtest'" 1>&2; :;\
+	fi
+
+check-am:
+	$(MAKE) $(AM_MAKEFLAGS) check-DEJAGNU
+
+.PHONY: check-DEJAGNU
+
+# To remove runtest-parallel directories.
+clean-local:
+	rm -rf libphobos*
 
 # 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.