PATCH RFA: Reorder objects in libbackend.a for faster parallel build
Ian Lance Taylor
iant@google.com
Tue Jan 23 02:42:00 GMT 2007
As we all know, insn-attrtab.o and friends take a long time to
compile, and typically a parallel make of gcc will stall until
insn-attrtab.o has finished building. On a multi-processor system, it
would be better if the parallel make started building insn-attrtab.o
earlier.
>From looking through the GNU make code, it appears to do a depth first
search through all the dependencies, starting a job for each goal
whose dependencies are all satisfied at that point. Then it repeats
until all the goals are built.
Therefore, the way to start building insn-attrtab.o as soon as
possible is to move it as early as possible in the list of
dependencies. That is what this patch does.
I also sorted and reformatted the list of .o files to make them look
more organized.
Tested with a bootstrap on i686-pc-linux-gnu.
OK for mainline?
Ian
2007-01-22 Ian Lance Taylor <iant@google.com>
* Makefile.in (OBJS-common): Reformat, alphabetize, but put
insn-*.o first.
(OBJS-archive): Reformat, alphabetize.
(OBJS): Change out_object_file to OBJS-md.
Index: Makefile.in
===================================================================
--- Makefile.in (revision 121050)
+++ Makefile.in (working copy)
@@ -933,61 +933,247 @@ C_AND_OBJC_OBJS = attribs.o c-errors.o c
C_OBJS = c-lang.o stub-objc.o $(C_AND_OBJC_OBJS)
# Language-independent object files.
+# We put the insn-*.o files first so that a parallel make will build
+# them sooner, because they are large and otherwise tend to be the
+# last objects to finish building.
OBJS-common = \
- double-int.o tree-chrec.o tree-scalar-evolution.o tree-data-ref.o \
- tree-cfg.o tree-dfa.o tree-eh.o tree-ssa.o tree-optimize.o tree-gimple.o \
- gimplify.o tree-pretty-print.o tree-into-ssa.o tree-ssa-ter.o \
- tree-outof-ssa.o tree-ssa-ccp.o tree-vn.o tree-ssa-uncprop.o \
- tree-ssa-dce.o tree-ssa-copy.o tree-nrv.o tree-ssa-copyrename.o \
- tree-ssa-pre.o tree-ssa-live.o tree-ssa-operands.o tree-ssa-alias.o \
- tree-ssa-phiopt.o tree-ssa-forwprop.o tree-nested.o tree-ssa-dse.o \
- tree-ssa-dom.o domwalk.o tree-tailcall.o gimple-low.o tree-iterator.o \
- omp-low.o tree-phinodes.o tree-ssanames.o tree-sra.o tree-complex.o \
- tree-vect-generic.o tree-ssa-loop.o tree-ssa-loop-niter.o \
- tree-ssa-loop-manip.o tree-ssa-threadupdate.o tree-ssa-threadedge.o \
- tree-vectorizer.o tree-vect-analyze.o tree-vect-transform.o \
- tree-vect-patterns.o tree-ssa-loop-prefetch.o tree-ssa-coalesce.o \
- tree-ssa-loop-ivcanon.o tree-ssa-propagate.o tree-ssa-address.o \
- tree-ssa-math-opts.o tree-affine.o \
- tree-ssa-loop-ivopts.o tree-if-conv.o tree-ssa-loop-unswitch.o \
- alias.o bb-reorder.o bitmap.o builtins.o caller-save.o calls.o \
- cfg.o cfganal.o cfgbuild.o cfgcleanup.o cfglayout.o cfgloop.o \
- cfgloopanal.o cfgloopmanip.o loop-init.o loop-unswitch.o loop-unroll.o \
- cfgrtl.o combine.o convert.o coverage.o cse.o cselib.o \
- dbxout.o ddg.o tree-ssa-loop-ch.o loop-invariant.o tree-ssa-loop-im.o \
- debug.o df-core.o df-problems.o df-scan.o dfp.o diagnostic.o dojump.o \
- dominance.o loop-doloop.o \
- dwarf2asm.o dwarf2out.o emit-rtl.o except.o explow.o loop-iv.o \
- expmed.o expr.o final.o flow.o fold-const.o function.o fwprop.o gcse.o \
- genrtl.o ggc-common.o global.o graph.o gtype-desc.o \
- haifa-sched.o hooks.o ifcvt.o insn-attrtab.o insn-emit.o insn-modes.o \
- insn-extract.o insn-opinit.o insn-output.o insn-peep.o insn-recog.o \
- integrate.o intl.o jump.o langhooks.o lcm.o lists.o local-alloc.o \
- mode-switching.o modulo-sched.o optabs.o options.o opts.o opts-common.o \
- params.o postreload.o postreload-gcse.o predict.o \
- insn-preds.o insn-automata.o pointer-set.o \
- print-rtl.o print-tree.o profile.o value-prof.o var-tracking.o \
- real.o recog.o reg-stack.o regclass.o regmove.o regrename.o \
- reload.o reload1.o reorg.o resource.o rtl.o rtlanal.o rtl-error.o \
- sbitmap.o sched-deps.o sched-ebb.o sched-rgn.o sched-vis.o sdbout.o \
- see.o simplify-rtx.o sreal.o stmt.o stor-layout.o stringpool.o \
- struct-equiv.o targhooks.o timevar.o toplev.o tracer.o tree.o tree-dump.o \
- varasm.o varray.o vec.o version.o vmsdbgout.o xcoffout.o alloc-pool.o \
- et-forest.o cfghooks.o bt-load.o pretty-print.o $(GGC) web.o passes.o \
- tree-profile.o rtlhooks.o cfgexpand.o lambda-mat.o \
- lambda-trans.o lambda-code.o tree-loop-linear.o tree-ssa-sink.o \
- tree-vrp.o tree-stdarg.o tree-cfgcleanup.o tree-ssa-reassoc.o \
- tree-ssa-structalias.o tree-object-size.o \
- rtl-factoring.o
-
+ insn-attrtab.o \
+ insn-automata.o \
+ insn-emit.o \
+ insn-extract.o \
+ insn-modes.o \
+ insn-opinit.o \
+ insn-output.o \
+ insn-peep.o \
+ insn-preds.o \
+ insn-recog.o \
+ $(GGC) \
+ alias.o \
+ alloc-pool.o \
+ bb-reorder.o \
+ bitmap.o \
+ bt-load.o \
+ builtins.o \
+ caller-save.o \
+ calls.o \
+ cfg.o \
+ cfganal.o \
+ cfgbuild.o \
+ cfgcleanup.o \
+ cfgexpand.o \
+ cfghooks.o \
+ cfglayout.o \
+ cfgloop.o \
+ cfgloopanal.o \
+ cfgloopmanip.o \
+ cfgrtl.o \
+ combine.o \
+ convert.o \
+ coverage.o \
+ cse.o \
+ cselib.o \
+ dbxout.o \
+ ddg.o \
+ debug.o \
+ df-core.o \
+ df-problems.o \
+ df-scan.o \
+ dfp.o \
+ diagnostic.o \
+ dojump.o \
+ dominance.o \
+ domwalk.o \
+ double-int.o \
+ dwarf2asm.o \
+ dwarf2out.o \
+ emit-rtl.o \
+ et-forest.o \
+ except.o \
+ explow.o \
+ expmed.o \
+ expr.o \
+ final.o \
+ flow.o \
+ fold-const.o \
+ function.o \
+ fwprop.o \
+ gcse.o \
+ genrtl.o \
+ ggc-common.o \
+ gimple-low.o \
+ gimplify.o \
+ global.o \
+ graph.o \
+ gtype-desc.o \
+ haifa-sched.o \
+ hooks.o \
+ ifcvt.o \
+ integrate.o \
+ intl.o \
+ jump.o \
+ lambda-code.o \
+ lambda-mat.o \
+ lambda-trans.o \
+ langhooks.o \
+ lcm.o \
+ lists.o \
+ local-alloc.o \
+ loop-doloop.o \
+ loop-init.o \
+ loop-invariant.o \
+ loop-iv.o \
+ loop-unroll.o \
+ loop-unswitch.o \
+ mode-switching.o \
+ modulo-sched.o \
+ omp-low.o \
+ optabs.o \
+ options.o \
+ opts-common.o \
+ opts.o \
+ params.o \
+ passes.o \
+ pointer-set.o \
+ postreload-gcse.o \
+ postreload.o \
+ predict.o \
+ pretty-print.o \
+ print-rtl.o \
+ print-tree.o \
+ profile.o \
+ real.o \
+ recog.o \
+ reg-stack.o \
+ regclass.o \
+ regmove.o \
+ regrename.o \
+ reload.o \
+ reload1.o \
+ reorg.o \
+ resource.o \
+ rtl-error.o \
+ rtl-factoring.o \
+ rtl.o \
+ rtlanal.o \
+ rtlhooks.o \
+ sbitmap.o \
+ sched-deps.o \
+ sched-ebb.o \
+ sched-rgn.o \
+ sched-vis.o \
+ sdbout.o \
+ see.o \
+ simplify-rtx.o \
+ sreal.o \
+ stmt.o \
+ stor-layout.o \
+ stringpool.o \
+ struct-equiv.o \
+ targhooks.o \
+ timevar.o \
+ toplev.o \
+ tracer.o \
+ tree-affine.o \
+ tree-cfg.o \
+ tree-cfgcleanup.o \
+ tree-chrec.o \
+ tree-complex.o \
+ tree-data-ref.o \
+ tree-dfa.o \
+ tree-dump.o \
+ tree-eh.o \
+ tree-gimple.o \
+ tree-if-conv.o \
+ tree-into-ssa.o \
+ tree-iterator.o \
+ tree-loop-linear.o \
+ tree-nested.o \
+ tree-nrv.o \
+ tree-object-size.o \
+ tree-optimize.o \
+ tree-outof-ssa.o \
+ tree-phinodes.o \
+ tree-pretty-print.o \
+ tree-profile.o \
+ tree-scalar-evolution.o \
+ tree-sra.o \
+ tree-ssa-address.o \
+ tree-ssa-alias.o \
+ tree-ssa-ccp.o \
+ tree-ssa-coalesce.o \
+ tree-ssa-copy.o \
+ tree-ssa-copyrename.o \
+ tree-ssa-dce.o \
+ tree-ssa-dom.o \
+ tree-ssa-dse.o \
+ tree-ssa-forwprop.o \
+ tree-ssa-live.o \
+ tree-ssa-loop-ch.o \
+ tree-ssa-loop-im.o \
+ tree-ssa-loop-ivcanon.o \
+ tree-ssa-loop-ivopts.o \
+ tree-ssa-loop-manip.o \
+ tree-ssa-loop-niter.o \
+ tree-ssa-loop-prefetch.o \
+ tree-ssa-loop-unswitch.o \
+ tree-ssa-loop.o \
+ tree-ssa-math-opts.o \
+ tree-ssa-operands.o \
+ tree-ssa-phiopt.o \
+ tree-ssa-pre.o \
+ tree-ssa-propagate.o \
+ tree-ssa-reassoc.o \
+ tree-ssa-sink.o \
+ tree-ssa-structalias.o \
+ tree-ssa-ter.o \
+ tree-ssa-threadedge.o \
+ tree-ssa-threadupdate.o \
+ tree-ssa-uncprop.o \
+ tree-ssa.o \
+ tree-ssanames.o \
+ tree-stdarg.o \
+ tree-tailcall.o \
+ tree-vect-analyze.o \
+ tree-vect-generic.o \
+ tree-vect-patterns.o \
+ tree-vect-transform.o \
+ tree-vectorizer.o \
+ tree-vn.o \
+ tree-vrp.o \
+ tree.o \
+ value-prof.o \
+ var-tracking.o \
+ varasm.o \
+ varray.o \
+ vec.o \
+ version.o \
+ vmsdbgout.o \
+ web.o \
+ xcoffout.o
+# Target object files.
OBJS-md = $(out_object_file)
-OBJS-archive = $(EXTRA_OBJS) $(host_hook_obj) tree-inline.o \
- cgraph.o cgraphunit.o cgraphbuild.o tree-nomudflap.o ipa.o ipa-inline.o \
- ipa-utils.o ipa-reference.o ipa-pure-const.o ipa-type-escape.o \
- ipa-prop.o ipa-cp.o varpool.o
-OBJS = $(OBJS-common) $(out_object_file) $(OBJS-archive)
+# Language independent object files which are not used by all languages.
+OBJS-archive = \
+ $(EXTRA_OBJS) \
+ $(host_hook_obj) \
+ cgraph.o \
+ cgraphbuild.o \
+ cgraphunit.o \
+ ipa-cp.o \
+ ipa-inline.o \
+ ipa-prop.o \
+ ipa-pure-const.o \
+ ipa-reference.o \
+ ipa-type-escape.o \
+ ipa-utils.o \
+ ipa.o \
+ tree-inline.o \
+ tree-nomudflap.o \
+ varpool.o
+
+OBJS = $(OBJS-common) $(OBJS-md) $(OBJS-archive)
OBJS-onestep = libbackend.o $(OBJS-archive)
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