* RFA: Test ability to access i386 SSE registers
@ 2004-05-12 5:26 Jim Blandy
2004-05-12 6:09 ` Daniel Jacobowitz
0 siblings, 1 reply; 4+ messages in thread
From: Jim Blandy @ 2004-05-12 5:26 UTC (permalink / raw)
To: gdb-patches
It's late; there is surely some Kool-Aid around here I have forgotten
to drink.
2004-05-12 Jim Blandy <jimb@redhat.com>
* gdb.arch/i386-sse.exp, gdb.arch/i386-sse.c: New tests.
Index: gdb/testsuite/gdb.arch/i386-sse.c
===================================================================
RCS file: gdb/testsuite/gdb.arch/i386-sse.c
diff -N gdb/testsuite/gdb.arch/i386-sse.c
*** gdb/testsuite/gdb.arch/i386-sse.c 1 Jan 1970 00:00:00 -0000
--- gdb/testsuite/gdb.arch/i386-sse.c 12 May 2004 05:23:51 -0000
***************
*** 0 ****
--- 1,106 ----
+ /* Test program for SSE registers.
+
+ Copyright 2004 Free Software Foundation, Inc.
+
+ This file is part of GDB.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+ #include <stdio.h>
+
+
+ typedef struct {
+ float f[4];
+ } v4sf_t;
+
+
+ v4sf_t data[8] =
+ {
+ { { 0.0, 0.25, 0.50, 0.75 } },
+ { { 1.0, 1.25, 1.50, 1.75 } },
+ { { 2.0, 2.25, 2.50, 2.75 } },
+ { { 3.0, 3.25, 3.50, 3.75 } },
+ { { 4.0, 4.25, 4.50, 4.75 } },
+ { { 5.0, 5.25, 5.50, 5.75 } },
+ { { 6.0, 6.25, 6.50, 6.75 } },
+ { { 7.0, 7.25, 7.50, 7.75 } },
+ };
+
+
+ void
+ cpuid (int op, int *eax, int *ebx, int *ecx, int *edx)
+ {
+ __asm__("cpuid"
+ : "=a" (*eax), "=b" (*ebx), "=c" (*ecx), "=d" (*edx)
+ : "0" (op));
+ }
+
+
+ /* After executing 'cpuid' with %eax set to 1, this bit of %edx is set
+ if the processor supports the SSE extensions. */
+ #define CPUID_EDX_SSE (1 << 25)
+
+
+ int
+ have_sse (void)
+ {
+ int eax, ebx, ecx, edx;
+
+ cpuid (1, &eax, &ebx, &ecx, &edx);
+
+ if (edx & CPUID_EDX_SSE)
+ return 1;
+ else
+ return 0;
+ }
+
+ int
+ main (int argc, char **argv)
+ {
+ if (have_sse ())
+ {
+ asm ("movaps 0(%0), %%xmm0\n\t"
+ "movaps 16(%0), %%xmm1\n\t"
+ "movaps 32(%0), %%xmm2\n\t"
+ "movaps 48(%0), %%xmm3\n\t"
+ "movaps 64(%0), %%xmm4\n\t"
+ "movaps 80(%0), %%xmm5\n\t"
+ "movaps 96(%0), %%xmm6\n\t"
+ "movaps 112(%0), %%xmm7\n\t"
+ : /* no output operands */
+ : "r" (data)
+ : "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7");
+
+ puts ("Hi!"); /* first breakpoint here */
+
+ asm (
+ "movaps %%xmm0, 0(%0)\n\t"
+ "movaps %%xmm1, 16(%0)\n\t"
+ "movaps %%xmm2, 32(%0)\n\t"
+ "movaps %%xmm3, 48(%0)\n\t"
+ "movaps %%xmm4, 64(%0)\n\t"
+ "movaps %%xmm5, 80(%0)\n\t"
+ "movaps %%xmm6, 96(%0)\n\t"
+ "movaps %%xmm7, 112(%0)\n\t"
+ : /* no output operands */
+ : "r" (data)
+ : "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7");
+
+ puts ("Bye!"); /* second breakpoint here */
+ }
+
+ return 0;
+ }
Index: gdb/testsuite/gdb.arch/i386-sse.exp
===================================================================
RCS file: gdb/testsuite/gdb.arch/i386-sse.exp
diff -N gdb/testsuite/gdb.arch/i386-sse.exp
*** gdb/testsuite/gdb.arch/i386-sse.exp 1 Jan 1970 00:00:00 -0000
--- gdb/testsuite/gdb.arch/i386-sse.exp 12 May 2004 05:23:51 -0000
***************
*** 0 ****
--- 1,74 ----
+ # Copyright 2004 Free Software Foundation, Inc.
+
+ # This program is free software; you can redistribute it and/or modify
+ # it under the terms of the GNU General Public License as published by
+ # the Free Software Foundation; either version 2 of the License, or
+ # (at your option) any later version.
+ #
+ # This program is distributed in the hope that it will be useful,
+ # but WITHOUT ANY WARRANTY; without even the implied warranty of
+ # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ # GNU General Public License for more details.
+ #
+ # You should have received a copy of the GNU General Public License
+ # along with this program; if not, write to the Free Software
+ # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+ # Please email any bugs, comments, and/or additions to this file to:
+ # bug-gdb@gnu.org
+
+ # This file is part of the gdb testsuite.
+
+ if $tracelevel {
+ strace $tracelevel
+ }
+
+ set prms_id 0
+ set bug_id 0
+
+ if ![istarget "i?86-*-*"] then {
+ verbose "Skipping i386 SSE tests."
+ return
+ }
+
+ set testfile "i386-sse"
+ set srcfile ${testfile}.c
+ set binfile ${objdir}/${subdir}/${testfile}
+ if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
+ gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
+ }
+
+ gdb_exit
+ gdb_start
+ gdb_reinitialize_dir $srcdir/$subdir
+ gdb_load ${binfile}
+
+ if ![runto_main] then {
+ gdb_suppress_tests
+ }
+
+ gdb_test "break [gdb_get_line_number "first breakpoint here"]" \
+ "Breakpoint .* at .*i386-sse.c.*" \
+ "set breakpoint in main"
+ gdb_continue_to_breakpoint "continue to first breakpoint in main"
+
+ foreach r {0 1 2 3 4 5 6 7} {
+ gdb_test "print \$xmm$r.v4_float" \
+ ".. = {$r, $r.25, $r.5, $r.75}.*" \
+ "check contents of %xmm$r"
+ }
+
+ foreach r {0 1 2 3 4 5 6 7} {
+ gdb_test "set var \$xmm$r.v4_float\[0\] = $r + 10" "" "set %xmm$r"
+ }
+
+ gdb_test "break [gdb_get_line_number "second breakpoint here"]" \
+ "Breakpoint .* at .*i386-sse.c.*" \
+ "set breakpoint in main"
+ gdb_continue_to_breakpoint "continue to second breakpoint in main"
+
+ foreach r {0 1 2 3 4 5 6 7} {
+ gdb_test "print data\[$r\]" \
+ ".. = {f = {[expr $r + 10], $r.25, $r.5, $r.75}}.*" \
+ "check contents of data\[$r\]"
+ }
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: RFA: Test ability to access i386 SSE registers
2004-05-12 5:26 RFA: Test ability to access i386 SSE registers Jim Blandy
@ 2004-05-12 6:09 ` Daniel Jacobowitz
2004-05-12 6:40 ` Jim Blandy
0 siblings, 1 reply; 4+ messages in thread
From: Daniel Jacobowitz @ 2004-05-12 6:09 UTC (permalink / raw)
To: Jim Blandy; +Cc: gdb-patches
On Wed, May 12, 2004 at 12:25:40AM -0500, Jim Blandy wrote:
>
> It's late; there is surely some Kool-Aid around here I have forgotten
> to drink.
There better be!
> + if ![runto_main] then {
> + gdb_suppress_tests
> + }
> +
> + gdb_test "break [gdb_get_line_number "first breakpoint here"]" \
> + "Breakpoint .* at .*i386-sse.c.*" \
> + "set breakpoint in main"
> + gdb_continue_to_breakpoint "continue to first breakpoint in main"
So, all that trouble to make the SSE testcase not use movaps if it
isn't available... and you never check in the test script?
If you're going to be thorough in the test case, be more thorough. See
gcc.dg/i386-cpuid.h in GCC.
--
Daniel Jacobowitz
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: RFA: Test ability to access i386 SSE registers
2004-05-12 6:09 ` Daniel Jacobowitz
@ 2004-05-12 6:40 ` Jim Blandy
2004-06-07 15:40 ` Jim Blandy
0 siblings, 1 reply; 4+ messages in thread
From: Jim Blandy @ 2004-05-12 6:40 UTC (permalink / raw)
To: Daniel Jacobowitz; +Cc: gdb-patches
Daniel Jacobowitz <drow@false.org> writes:
> On Wed, May 12, 2004 at 12:25:40AM -0500, Jim Blandy wrote:
> >
> > It's late; there is surely some Kool-Aid around here I have forgotten
> > to drink.
>
> There better be!
>
> > + if ![runto_main] then {
> > + gdb_suppress_tests
> > + }
> > +
> > + gdb_test "break [gdb_get_line_number "first breakpoint here"]" \
> > + "Breakpoint .* at .*i386-sse.c.*" \
> > + "set breakpoint in main"
> > + gdb_continue_to_breakpoint "continue to first breakpoint in main"
>
> So, all that trouble to make the SSE testcase not use movaps if it
> isn't available... and you never check in the test script?
Oh yeah. That was it. [vacant stare]
> If you're going to be thorough in the test case, be more thorough. See
> gcc.dg/i386-cpuid.h in GCC.
Okay. How about:
2004-05-12 Jim Blandy <jimb@redhat.com>
* gdb.arch/i386-sse.exp, gdb.arch/i386-sse.c: New tests.
* gdb.arch/i386-cpuid.h: New helper file.
Index: gdb/testsuite/gdb.arch/i386-cpuid.h
===================================================================
RCS file: gdb/testsuite/gdb.arch/i386-cpuid.h
diff -N gdb/testsuite/gdb.arch/i386-cpuid.h
*** gdb/testsuite/gdb.arch/i386-cpuid.h 1 Jan 1970 00:00:00 -0000
--- gdb/testsuite/gdb.arch/i386-cpuid.h 12 May 2004 06:38:44 -0000
***************
*** 0 ****
--- 1,77 ----
+ /* Helper file for i386 platform. Runtime check for MMX/SSE/SSE2 support.
+
+ Copyright 2004 Free Software Foundation, Inc.
+
+ This file is part of GDB.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+ /* Used by 20020523-2.c and i386-sse-6.c, and possibly others. */
+ /* Plagarized from 20020523-2.c. */
+ /* Plagarized from gcc. */
+
+ #define bit_CMOV (1 << 15)
+ #define bit_MMX (1 << 23)
+ #define bit_SSE (1 << 25)
+ #define bit_SSE2 (1 << 26)
+
+ #ifndef NOINLINE
+ #define NOINLINE __attribute__ ((noinline))
+ #endif
+
+ unsigned int i386_cpuid (void) NOINLINE;
+
+ unsigned int NOINLINE
+ i386_cpuid (void)
+ {
+ int fl1, fl2;
+
+ #ifndef __x86_64__
+ /* See if we can use cpuid. On AMD64 we always can. */
+ __asm__ ("pushfl; pushfl; popl %0; movl %0,%1; xorl %2,%0;"
+ "pushl %0; popfl; pushfl; popl %0; popfl"
+ : "=&r" (fl1), "=&r" (fl2)
+ : "i" (0x00200000));
+ if (((fl1 ^ fl2) & 0x00200000) == 0)
+ return (0);
+ #endif
+
+ /* Host supports cpuid. See if cpuid gives capabilities, try
+ CPUID(0). Preserve %ebx and %ecx; cpuid insn clobbers these, we
+ don't need their CPUID values here, and %ebx may be the PIC
+ register. */
+ #ifdef __x86_64__
+ __asm__ ("pushq %%rcx; pushq %%rbx; cpuid; popq %%rbx; popq %%rcx"
+ : "=a" (fl1) : "0" (0) : "rdx", "cc");
+ #else
+ __asm__ ("pushl %%ecx; pushl %%ebx; cpuid; popl %%ebx; popl %%ecx"
+ : "=a" (fl1) : "0" (0) : "edx", "cc");
+ #endif
+ if (fl1 == 0)
+ return (0);
+
+ /* Invoke CPUID(1), return %edx; caller can examine bits to
+ determine what's supported. */
+ #ifdef __x86_64__
+ __asm__ ("pushq %%rcx; pushq %%rbx; cpuid; popq %%rbx; popq %%rcx"
+ : "=d" (fl2), "=a" (fl1) : "1" (1) : "cc");
+ #else
+ __asm__ ("pushl %%ecx; pushl %%ebx; cpuid; popl %%ebx; popl %%ecx"
+ : "=d" (fl2), "=a" (fl1) : "1" (1) : "cc");
+ #endif
+
+ return fl2;
+ }
Index: gdb/testsuite/gdb.arch/i386-sse.c
===================================================================
RCS file: gdb/testsuite/gdb.arch/i386-sse.c
diff -N gdb/testsuite/gdb.arch/i386-sse.c
*** gdb/testsuite/gdb.arch/i386-sse.c 1 Jan 1970 00:00:00 -0000
--- gdb/testsuite/gdb.arch/i386-sse.c 12 May 2004 06:38:44 -0000
***************
*** 0 ****
--- 1,90 ----
+ /* Test program for SSE registers.
+
+ Copyright 2004 Free Software Foundation, Inc.
+
+ This file is part of GDB.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+ #include <stdio.h>
+ #include "i386-cpuid.h"
+
+ typedef struct {
+ float f[4];
+ } v4sf_t;
+
+
+ v4sf_t data[8] =
+ {
+ { { 0.0, 0.25, 0.50, 0.75 } },
+ { { 1.0, 1.25, 1.50, 1.75 } },
+ { { 2.0, 2.25, 2.50, 2.75 } },
+ { { 3.0, 3.25, 3.50, 3.75 } },
+ { { 4.0, 4.25, 4.50, 4.75 } },
+ { { 5.0, 5.25, 5.50, 5.75 } },
+ { { 6.0, 6.25, 6.50, 6.75 } },
+ { { 7.0, 7.25, 7.50, 7.75 } },
+ };
+
+
+ int
+ have_sse (void)
+ {
+ int edx = i386_cpuid ();
+
+ if (edx & bit_SSE)
+ return 1;
+ else
+ return 0;
+ }
+
+ int
+ main (int argc, char **argv)
+ {
+ if (have_sse ())
+ {
+ asm ("movaps 0(%0), %%xmm0\n\t"
+ "movaps 16(%0), %%xmm1\n\t"
+ "movaps 32(%0), %%xmm2\n\t"
+ "movaps 48(%0), %%xmm3\n\t"
+ "movaps 64(%0), %%xmm4\n\t"
+ "movaps 80(%0), %%xmm5\n\t"
+ "movaps 96(%0), %%xmm6\n\t"
+ "movaps 112(%0), %%xmm7\n\t"
+ : /* no output operands */
+ : "r" (data)
+ : "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7");
+
+ puts ("Hi!"); /* first breakpoint here */
+
+ asm (
+ "movaps %%xmm0, 0(%0)\n\t"
+ "movaps %%xmm1, 16(%0)\n\t"
+ "movaps %%xmm2, 32(%0)\n\t"
+ "movaps %%xmm3, 48(%0)\n\t"
+ "movaps %%xmm4, 64(%0)\n\t"
+ "movaps %%xmm5, 80(%0)\n\t"
+ "movaps %%xmm6, 96(%0)\n\t"
+ "movaps %%xmm7, 112(%0)\n\t"
+ : /* no output operands */
+ : "r" (data)
+ : "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7");
+
+ puts ("Bye!"); /* second breakpoint here */
+ }
+
+ return 0;
+ }
Index: gdb/testsuite/gdb.arch/i386-sse.exp
===================================================================
RCS file: gdb/testsuite/gdb.arch/i386-sse.exp
diff -N gdb/testsuite/gdb.arch/i386-sse.exp
*** gdb/testsuite/gdb.arch/i386-sse.exp 1 Jan 1970 00:00:00 -0000
--- gdb/testsuite/gdb.arch/i386-sse.exp 12 May 2004 06:38:44 -0000
***************
*** 0 ****
--- 1,91 ----
+ # Copyright 2004 Free Software Foundation, Inc.
+
+ # This program is free software; you can redistribute it and/or modify
+ # it under the terms of the GNU General Public License as published by
+ # the Free Software Foundation; either version 2 of the License, or
+ # (at your option) any later version.
+ #
+ # This program is distributed in the hope that it will be useful,
+ # but WITHOUT ANY WARRANTY; without even the implied warranty of
+ # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ # GNU General Public License for more details.
+ #
+ # You should have received a copy of the GNU General Public License
+ # along with this program; if not, write to the Free Software
+ # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+ # Please email any bugs, comments, and/or additions to this file to:
+ # bug-gdb@gnu.org
+
+ # This file is part of the gdb testsuite.
+
+ if $tracelevel {
+ strace $tracelevel
+ }
+
+ set prms_id 0
+ set bug_id 0
+
+ if ![istarget "i?86-*-*"] then {
+ verbose "Skipping i386 SSE tests."
+ return
+ }
+
+ set testfile "i386-sse"
+ set srcfile ${testfile}.c
+ set binfile ${objdir}/${subdir}/${testfile}
+ if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
+ gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
+ }
+
+ gdb_exit
+ gdb_start
+ gdb_reinitialize_dir $srcdir/$subdir
+ gdb_load ${binfile}
+
+ if ![runto_main] then {
+ gdb_suppress_tests
+ }
+
+ send_gdb "print have_sse ()\r"
+ gdb_expect {
+ -re ".. = 1\r\n$gdb_prompt " {
+ pass "check whether processor supports SSE"
+ }
+ -re ".. = 0\r\n$gdb_prompt " {
+ verbose "processor does not support SSE; skipping SSE tests"
+ return
+ }
+ -re ".*$gdb_prompt $" {
+ fail "check whether processor supports SSE"
+ }
+ timeout {
+ fail "check whether processor supports SSE (timeout)"
+ }
+ }
+
+ gdb_test "break [gdb_get_line_number "first breakpoint here"]" \
+ "Breakpoint .* at .*i386-sse.c.*" \
+ "set breakpoint in main"
+ gdb_continue_to_breakpoint "continue to first breakpoint in main"
+
+ foreach r {0 1 2 3 4 5 6 7} {
+ gdb_test "print \$xmm$r.v4_float" \
+ ".. = {$r, $r.25, $r.5, $r.75}.*" \
+ "check contents of %xmm$r"
+ }
+
+ foreach r {0 1 2 3 4 5 6 7} {
+ gdb_test "set var \$xmm$r.v4_float\[0\] = $r + 10" "" "set %xmm$r"
+ }
+
+ gdb_test "break [gdb_get_line_number "second breakpoint here"]" \
+ "Breakpoint .* at .*i386-sse.c.*" \
+ "set breakpoint in main"
+ gdb_continue_to_breakpoint "continue to second breakpoint in main"
+
+ foreach r {0 1 2 3 4 5 6 7} {
+ gdb_test "print data\[$r\]" \
+ ".. = {f = {[expr $r + 10], $r.25, $r.5, $r.75}}.*" \
+ "check contents of data\[$r\]"
+ }
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: RFA: Test ability to access i386 SSE registers
2004-05-12 6:40 ` Jim Blandy
@ 2004-06-07 15:40 ` Jim Blandy
0 siblings, 0 replies; 4+ messages in thread
From: Jim Blandy @ 2004-06-07 15:40 UTC (permalink / raw)
To: gdb-patches
Jim Blandy <jimb@redhat.com> writes:
> Daniel Jacobowitz <drow@false.org> writes:
>
> > On Wed, May 12, 2004 at 12:25:40AM -0500, Jim Blandy wrote:
> > >
> > > It's late; there is surely some Kool-Aid around here I have forgotten
> > > to drink.
> >
> > There better be!
> >
> > > + if ![runto_main] then {
> > > + gdb_suppress_tests
> > > + }
> > > +
> > > + gdb_test "break [gdb_get_line_number "first breakpoint here"]" \
> > > + "Breakpoint .* at .*i386-sse.c.*" \
> > > + "set breakpoint in main"
> > > + gdb_continue_to_breakpoint "continue to first breakpoint in main"
> >
> > So, all that trouble to make the SSE testcase not use movaps if it
> > isn't available... and you never check in the test script?
>
> Oh yeah. That was it. [vacant stare]
>
> > If you're going to be thorough in the test case, be more thorough. See
> > gcc.dg/i386-cpuid.h in GCC.
>
> Okay. How about:
>
> 2004-05-12 Jim Blandy <jimb@redhat.com>
>
> * gdb.arch/i386-sse.exp, gdb.arch/i386-sse.c: New tests.
> * gdb.arch/i386-cpuid.h: New helper file.
I've committed this test as revised.
^ permalink raw reply [flat|nested] 4+ messages in thread
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2004-06-07 15:40 ` Jim Blandy
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