From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 29844 invoked by alias); 26 Sep 2014 02:11:37 -0000 Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org Received: (qmail 29756 invoked by uid 89); 26 Sep 2014 02:11:36 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.5 required=5.0 tests=AWL,BAYES_00,SPF_PASS autolearn=ham version=3.3.2 X-HELO: service87.mimecast.com Received: from service87.mimecast.com (HELO service87.mimecast.com) (91.220.42.44) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Fri, 26 Sep 2014 02:11:35 +0000 Received: from cam-owa2.Emea.Arm.com (fw-tnat.cambridge.arm.com [217.140.96.21]) by service87.mimecast.com; Fri, 26 Sep 2014 03:11:32 +0100 Received: from shawin188 ([10.1.255.212]) by cam-owa2.Emea.Arm.com with Microsoft SMTPSVC(6.0.3790.3959); Fri, 26 Sep 2014 03:11:30 +0100 From: "Tony Wang" To: Cc: "Richard Earnshaw" , "Ramana Radhakrishnan" References: In-Reply-To: Subject: RE: [PATCH 3/3,ARM,libgcc]Code size optimization for the fmul/fdiv and dmul/ddiv function in libgcc Date: Fri, 26 Sep 2014 02:11:00 -0000 Message-ID: <000201cfd92f$29eaae90$7dc00bb0$@arm.com> MIME-Version: 1.0 X-MC-Unique: 114092603113202001 Content-Type: text/plain; charset=WINDOWS-1252 Content-Transfer-Encoding: quoted-printable X-IsSubscribed: yes X-SW-Source: 2014-09/txt/msg02343.txt.bz2 Ping?=09 > -----Original Message----- > From: Tony Wang [mailto:tony.wang@arm.com] > Sent: Tuesday, September 16, 2014 11:01 AM > To: 'gcc-patches@gcc.gnu.org' > Cc: Richard Earnshaw; Ramana Radhakrishnan > Subject: RE: [PATCH 3/3,ARM,libgcc]Code size optimization for the fmul/fd= iv and dmul/ddiv function in libgcc >=20 > Ping? >=20 > > -----Original Message----- > > From: Tony Wang [mailto:tony.wang@arm.com] > > Sent: Thursday, September 04, 2014 10:16 AM > > To: 'gcc-patches@gcc.gnu.org' > > Cc: Richard Earnshaw; Ramana Radhakrishnan > > Subject: RE: [PATCH 3/3,ARM,libgcc]Code size optimization for the fmul/= fdiv and dmul/ddiv function in libgcc > > > > Ping 2? > > > > > -----Original Message----- > > > From: Tony Wang [mailto:tony.wang@arm.com] > > > Sent: Thursday, August 28, 2014 2:02 PM > > > To: 'gcc-patches@gcc.gnu.org' > > > Cc: Richard Earnshaw; Ramana Radhakrishnan > > > Subject: RE: [PATCH 3/3,ARM,libgcc]Code size optimization for the fmu= l/fdiv and dmul/ddiv function in libgcc > > > > > > Ping? > > > > > > > -----Original Message----- > > > > From: Tony Wang [mailto:tony.wang@arm.com] > > > > Sent: Thursday, August 21, 2014 2:15 PM > > > > To: 'gcc-patches@gcc.gnu.org' > > > > Subject: [PATCH 3/3,ARM,libgcc]Code size optimization for the fmul/= fdiv and dmul/ddiv function in libgcc > > > > > > > > Step 3: Test cases to verify the code size reduction. > > > > > > > > gcc/gcc/testsuite/ChangeLog: > > > > 2014-08-21 Tony Wang > > > > > > > > * gcc.target/arm/size-optimization-ieee-1.c: New test case > > > > * gcc.target/arm/size-optimization-ieee-2.c: New test case > > > > * lib/gcc-dg.exp: Add new function scan-symbol-common, scan= -symbol-yes, > > > > scan-symbol-no to scan a user defined symbol in final elf f= ile > > > > > > > > BR, > > > > Tony > > > > > > > > diff --git a/gcc/testsuite/gcc.target/arm/size-optimization-ieee-1.c b/gcc/testsuite/gcc.target/arm/size- > > > > optimization-ieee-1.c > > > > new file mode 100644 > > > > index 0000000..46e9cdf > > > > --- /dev/null > > > > +++ b/gcc/testsuite/gcc.target/arm/size-optimization-ieee-1.c > > > > @@ -0,0 +1,30 @@ > > > > +/* { dg-do link { target { arm_thumb2_ok } } } */ > > > > +/* { dg-options "-Wl,--gc-sections" } */ > > > > +int > > > > +foo () > > > > +{ > > > > + volatile float a; > > > > + volatile float b; > > > > + volatile float c =3D a * b; > > > > + return 0; > > > > +} > > > > + > > > > +int > > > > +bar () > > > > +{ > > > > + volatile double a; > > > > + volatile double b; > > > > + volatile double c =3D a * b; > > > > + return 0; > > > > +} > > > > + > > > > +int > > > > +main () > > > > +{ > > > > + foo (); > > > > + bar (); > > > > + return 0; > > > > +} > > > > +/* { dg-final { scan-symbol-no "__aeabi_fdiv" } } */ > > > > +/* { dg-final { scan-symbol-no "__aeabi_ddiv" } } */ > > > > + > > > > diff --git a/gcc/testsuite/gcc.target/arm/size-optimization-ieee-2.c b/gcc/testsuite/gcc.target/arm/size- > > > > optimization-ieee-2.c > > > > new file mode 100644 > > > > index 0000000..5007d62 > > > > --- /dev/null > > > > +++ b/gcc/testsuite/gcc.target/arm/size-optimization-ieee-2.c > > > > @@ -0,0 +1,30 @@ > > > > +/* { dg-do link { target { arm_thumb2_ok } } } */ > > > > +/* { dg-options "-Wl,--gc-sections" } */ > > > > +int > > > > +foo () > > > > +{ > > > > + volatile float a; > > > > + volatile float b; > > > > + volatile float c =3D a / b; > > > > + return 0; > > > > +} > > > > + > > > > +int > > > > +bar () > > > > +{ > > > > + volatile double a; > > > > + volatile double b; > > > > + volatile double c =3D a / b; > > > > + return 0; > > > > +} > > > > + > > > > +int > > > > +main () > > > > +{ > > > > + foo (); > > > > + bar (); > > > > + return 0; > > > > +} > > > > +/* { dg-final { scan-symbol-yes "__aeabi_fmul" } } */ > > > > +/* { dg-final { scan-symbol-yes "__aeabi_dmul" } } */ > > > > + > > > > diff --git a/gcc/testsuite/lib/gcc-dg.exp b/gcc/testsuite/lib/gcc-d= g.exp > > > > index 3390caa..0d52e95 100644 > > > > --- a/gcc/testsuite/lib/gcc-dg.exp > > > > +++ b/gcc/testsuite/lib/gcc-dg.exp > > > > @@ -880,5 +880,57 @@ proc gdb-exists { args } { > > > > return 0; > > > > } > > > > > > > > +# Scan the OUTPUT_FILE for a symbol. Return 1 if it present, or > > > > +# return 0 if it doesn't present > > > > + > > > > +proc scan-symbol-common { args } { > > > > + global nm > > > > + global base_dir > > > > + > > > > + set testcase [testname-for-summary] > > > > + set output_file "[file rootname [file tail $testcase]].exe" > > > > + > > > > + # Find nm like we find g++ in g++.exp. > > > > + if ![info exists nm] { > > > > + set nm [findfile $base_dir/../../../binutils/nm \ > > > > + $base_dir/../../../binutils/nm \ > > > > + [findfile $base_dir/../../nm $base_dir/../../nm \ > > > > + [findfile $base_dir/nm $base_dir/nm \ > > > > + [transform nm]]]] > > > > + verbose -log "nm is $nm" > > > > + } > > > > + > > > > + if { $output_file =3D=3D "" } { > > > > + fail "scan-symbol-not $args: dump file does not exist" > > > > + return > > > > + } > > > > + > > > > + set fd [open "| $nm $output_file" r] > > > > + set text [read $fd] > > > > + close $fd > > > > + > > > > + if [regexp -- [lindex $args 0] $text] { > > > > + return 1 > > > > + } else { > > > > + return 0 > > > > + } > > > > +} > > > > + > > > > +proc scan-symbol-yes { args } { > > > > + if { [scan-symbol-common $args] =3D=3D 1 } { > > > > + pass "scan-symbol-yes $args exists" > > > > + } else { > > > > + fail "scan-symbol-yes $args does not exist" > > > > + } > > > > +} > > > > + > > > > +proc scan-symbol-no { args } { > > > > + if { [scan-symbol-common $args] !=3D 1 } { > > > > + pass "scan-symbol-no $args does not exist" > > > > + } else { > > > > + fail "scan-symbol-no $args exists" > > > > + } > > > > +} > > > > + > > > > set additional_prunes "" > > > > set dg_runtest_extra_prunes ""