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Re: [PATCH] Build *-match.o as early as possible
- From: Richard Biener <richard dot guenther at gmail dot com>
- To: Segher Boessenkool <segher at kernel dot crashing dot org>,gcc-patches at gcc dot gnu dot org
- Date: Mon, 03 Aug 2015 17:27:27 +0200
- Subject: Re: [PATCH] Build *-match.o as early as possible
- Authentication-results: sourceware.org; auth=none
- References: <09e1ad477fcb2e9f0878f1e7e27385603c77c827 dot 1438613840 dot git dot segher at kernel dot crashing dot org>
On August 3, 2015 5:03:05 PM GMT+02:00, Segher Boessenkool <segher@kernel.crashing.org> wrote:
>The two files *-match.o files always finish building last, so if we
>start building them as soon as possible (instead of pretty late) the
>total build time will be less on a parallel build.
>
>Bootstrapped and tested on powerpc64-linux. Is this okay for trunk?
OK.
Richard.
>
>Segher
>
>
>2014-080-3 Segher Boessenkool <segher@kernel.crashing.org>
>
> * Makefile.in (OBJS): Put gimple-match.o and generic-match.o first.
>
>---
> gcc/Makefile.in | 10 +++++-----
> 1 file changed, 5 insertions(+), 5 deletions(-)
>
>diff --git a/gcc/Makefile.in b/gcc/Makefile.in
>index be259e8..683c42a 100644
>--- a/gcc/Makefile.in
>+++ b/gcc/Makefile.in
>@@ -1162,10 +1162,12 @@ C_COMMON_OBJS = c-family/c-common.o
>c-family/c-cppbuiltin.o c-family/c-dump.o \
> c-family/array-notation-common.o c-family/cilk.o c-family/c-ubsan.o
>
> # 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.
>+# We put the *-match.o and 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 = \
>+ gimple-match.o \
>+ generic-match.o \
> insn-attrtab.o \
> insn-automata.o \
> insn-dfatab.o \
>@@ -1260,8 +1262,6 @@ OBJS = \
> gimple-fold.o \
> gimple-laddress.o \
> gimple-low.o \
>- gimple-match.o \
>- generic-match.o \
> gimple-pretty-print.o \
> gimple-ssa-isolate-paths.o \
> gimple-ssa-strength-reduction.o \