Ping?
> -----Original Message-----
> From: Tony Wang [mailto:tony.w...@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.w...@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/fdiv
> > and dmul/ddiv function in
libgcc
> >
> > Ping?
> >
> > > -----Original Message-----
> > > From: Tony Wang [mailto:tony.w...@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 <tony.w...@arm.com>
> > >
> > > * 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 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 = a * b;
> > > + return 0;
> > > +}
> > > +
> > > +int
> > > +bar ()
> > > +{
> > > + volatile double a;
> > > + volatile double b;
> > > + volatile double c = 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 = a / b;
> > > + return 0;
> > > +}
> > > +
> > > +int
> > > +bar ()
> > > +{
> > > + volatile double a;
> > > + volatile double b;
> > > + volatile double c = 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 == "" } {
> > > + 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] == 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] != 1 } {
> > > + pass "scan-symbol-no $args does not exist"
> > > + } else {
> > > + fail "scan-symbol-no $args exists"
> > > + }
> > > +}
> > > +
> > > set additional_prunes ""
> > > set dg_runtest_extra_prunes ""
