From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 25690 invoked by alias); 28 Aug 2014 06:02:26 -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 25660 invoked by uid 89); 28 Aug 2014 06:02:26 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.3 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, 28 Aug 2014 06:02:25 +0000 Received: from cam-owa1.Emea.Arm.com (fw-tnat.cambridge.arm.com [217.140.96.21]) by service87.mimecast.com; Thu, 28 Aug 2014 07:02:22 +0100 Received: from shawin188 ([10.1.255.212]) by cam-owa1.Emea.Arm.com with Microsoft SMTPSVC(6.0.3790.3959); Thu, 28 Aug 2014 07:02:21 +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, 28 Aug 2014 06:02:00 -0000 Message-ID: <000501cfc285$a1ca43a0$e55ecae0$@arm.com> MIME-Version: 1.0 X-MC-Unique: 114082807022207201 Content-Type: text/plain; charset=WINDOWS-1252 Content-Transfer-Encoding: quoted-printable X-IsSubscribed: yes X-SW-Source: 2014-08/txt/msg02538.txt.bz2 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 a= nd dmul/ddiv function in libgcc >=20 > Step 3: Test cases to verify the code size reduction. >=20 > gcc/gcc/testsuite/ChangeLog: > 2014-08-21 Tony Wang >=20 > * 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-symbo= l-yes, > scan-symbol-no to scan a user defined symbol in final elf file >=20 > BR, > Tony >=20 > diff --git a/gcc/testsuite/gcc.target/arm/size-optimization-ieee-1.c b/gc= c/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/gc= c/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; > } >=20 > +# 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 ""