From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 18854 invoked by alias); 4 Sep 2014 02:16:43 -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 18723 invoked by uid 89); 4 Sep 2014 02:16:42 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.4 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; Thu, 04 Sep 2014 02:16:40 +0000 Received: from cam-owa2.Emea.Arm.com (fw-tnat.cambridge.arm.com [217.140.96.21]) by service87.mimecast.com; Thu, 04 Sep 2014 03:16:37 +0100 Received: from shawin188 ([10.1.255.212]) by cam-owa2.Emea.Arm.com with Microsoft SMTPSVC(6.0.3790.3959); Thu, 4 Sep 2014 03:16:35 +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: Thu, 04 Sep 2014 02:16:00 -0000 Message-ID: <000601cfc7e6$3d807cf0$b88176d0$@arm.com> MIME-Version: 1.0 X-MC-Unique: 114090403163800101 Content-Type: text/plain; charset=WINDOWS-1252 Content-Transfer-Encoding: quoted-printable X-IsSubscribed: yes X-SW-Source: 2014-09/txt/msg00286.txt.bz2 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 fmul/fd= iv and dmul/ddiv function in libgcc >=20 > Ping? >=20 > > -----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-sym= bol-yes, > > scan-symbol-no to scan a user defined symbol in final elf file > > > > 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-dg.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 ""