* gdb.arch/i386-cpuid.h: New helper file.
+2004-06-07 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.
+
2004-06-07 Randolph Chung <tausq@debian.org>
* gdb.base/shlib-call.exp: Allow breakpoint to be added after inferior
--- /dev/null
+/* 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;
+}
--- /dev/null
+/* 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;
+}
--- /dev/null
+# 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\[$r\]"
+}
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