gcc:

	* config.gcc (i[34567]86-*-solaris2*): Default with_arch_32 to
	pentiumpro on Solaris 8 and 9/x86.
	* doc/install.texi (Specific, i?86-*-solaris2.[89]): Recommend GNU as.
	Document SSE/SSE2 support.
	* doc/sourcebuild.texi (Effective-Target Keywords): Document sse.

	gcc/testsuite:
	* lib/target-supports.exp (check_effective_target_sse): New proc.
	* gcc.target/i386/sol2-check.h: New file.
	* gcc.target/i386/sse-check.h (ILL_INSN, ILL_INSN_LEN): Define.
	Include sol2-check.h.
	(main) Only run do_test () if sol2_check ().
	* gcc.target/i386/sse2-check.h: Likewise.
	* gcc.target/i386/sse3-check.h: Likewise.
	* gcc.dg/vect/tree-vect.h (check_vect) [__i386__ || __x86_64__]
	[__sun__ && __svr4__]: Execute SSE2 instruction.
	* gcc.target/i386/math-torture/math-torture.exp: Only add options
	with -msse to MATH_TORTURE_OPTIONS if check_effective_target_sse.
	* g++.dg/debug/dwarf2/const2b.C: Use dg-require-effective-target sse.
	* g++.dg/ext/vector14.C: Likewise.
	* g++.dg/other/mmintrin.C: Likewise.
	* gcc.dg/20020418-1.c: Likewise.
	* gcc.dg/debug/dwarf2/const-2b.c: Likewise.
	* gcc.dg/format/ms_unnamed-1.c: Likewise.
	* gcc.dg/format/unnamed-1.c: Likewise.
	Adapt dg-warning line number.
	* gcc.dg/graphite/pr40281.c: Likewise.
	* gcc.dg/pr32176.c: Likewise.
	* gcc.dg/pr40550.c: Likewise.
	* gcc.dg/prefetch-loop-arrays-1.c: Likewise.
	* gcc.dg/torture/pr36891.c: Likewise.
	* gcc.target/i386/20020218-1.c: Likewise.
	* gcc.target/i386/20020523.c: Likewise.
	* gcc.target/i386/abi-1.c: Likewise.
	* gcc.target/i386/brokensqrt.c: Likewise.
	* gcc.target/i386/fastcall-sseregparm.c: Likewise.
	* gcc.target/i386/pr13366.c: Likewise.
	* gcc.target/i386/pr13685.c: Likewise.
	* gcc.target/i386/pr24306.c: Likewise.
	* gcc.target/i386/pr31486.c: Likewise.
	* gcc.target/i386/pr32065-1.c: Likewise.
	* gcc.target/i386/pr32065-2.c: Likewise.
	* gcc.target/i386/pr32389.c: Likewise.
	* gcc.target/i386/pr38824.c: Likewise.
	* gcc.target/i386/pr38931.c: Likewise.
	* gcc.target/i386/pr39592-1.c: Likewise.
	* gcc.target/i386/pr43766.c: Likewise.
	* gcc.target/i386/recip-divf.c: Likewise.
	* gcc.target/i386/recip-sqrtf.c: Likewise.
	* gcc.target/i386/recip-vec-divf.c: Likewise.
	* gcc.target/i386/recip-vec-sqrtf.c: Likewise.
	* gcc.target/i386/sse-1.c: Likewise.
	* gcc.target/i386/sse-16.c: Likewise.
	* gcc.target/i386/sse-2.c: Likewise.
	* gcc.target/i386/sse-20.c: Likewise.
	* gcc.target/i386/sse-3.c: Likewise.
	* gcc.target/i386/sse-7.c: Likewise.
	* gcc.target/i386/sse-9.c: Likewise.
	* gcc.target/i386/sse-addps-1.c: Likewise.
	* gcc.target/i386/sse-addss-1.c: Likewise.
	* gcc.target/i386/sse-andnps-1.c: Likewise.
	* gcc.target/i386/sse-andps-1.c: Likewise.
	* gcc.target/i386/sse-cmpss-1.c: Likewise.
	* gcc.target/i386/sse-comiss-1.c: Likewise.
	* gcc.target/i386/sse-comiss-2.c: Likewise.
	* gcc.target/i386/sse-comiss-3.c: Likewise.
	* gcc.target/i386/sse-comiss-4.c: Likewise.
	* gcc.target/i386/sse-comiss-5.c: Likewise.
	* gcc.target/i386/sse-comiss-6.c: Likewise.
	* gcc.target/i386/sse-copysignf-vec.c: Likewise.
	* gcc.target/i386/sse-cvtsi2ss-1.c: Likewise.
	* gcc.target/i386/sse-cvtsi2ss-2.c: Likewise.
	* gcc.target/i386/sse-cvtss2si-1.c: Likewise.
	* gcc.target/i386/sse-cvtss2si-2.c: Likewise.
	* gcc.target/i386/sse-cvttss2si-1.c: Likewise.
	* gcc.target/i386/sse-cvttss2si-2.c: Likewise.
	* gcc.target/i386/sse-divps-1.c: Likewise.
	* gcc.target/i386/sse-divss-1.c: Likewise.
	* gcc.target/i386/sse-init-v4hi-1.c: Likewise.
	* gcc.target/i386/sse-init-v4sf-1.c: Likewise.
	* gcc.target/i386/sse-maxps-1.c: Likewise.
	* gcc.target/i386/sse-maxss-1.c: Likewise.
	* gcc.target/i386/sse-minps-1.c: Likewise.
	* gcc.target/i386/sse-minss-1.c: Likewise.
	* gcc.target/i386/sse-movaps-1.c: Likewise.
	* gcc.target/i386/sse-movaps-2.c: Likewise.
	* gcc.target/i386/sse-movhlps-1.c: Likewise.
	* gcc.target/i386/sse-movhps-1.c: Likewise.
	* gcc.target/i386/sse-movhps-2.c: Likewise.
	* gcc.target/i386/sse-movlhps-1.c: Likewise.
	* gcc.target/i386/sse-movmskps-1.c: Likewise.
	* gcc.target/i386/sse-movntps-1.c: Likewise.
	* gcc.target/i386/sse-movss-1.c: Likewise.
	* gcc.target/i386/sse-movss-2.c: Likewise.
	* gcc.target/i386/sse-movss-3.c: Likewise.
	* gcc.target/i386/sse-movups-1.c: Likewise.
	* gcc.target/i386/sse-movups-2.c: Likewise.
	* gcc.target/i386/sse-mulps-1.c: Likewise.
	* gcc.target/i386/sse-mulss-1.c: Likewise.
	* gcc.target/i386/sse-orps-1.c: Likewise.
	* gcc.target/i386/sse-rcpps-1.c: Likewise.
	* gcc.target/i386/sse-recip-vec.c: Likewise.
	* gcc.target/i386/sse-recip.c: Likewise.
	* gcc.target/i386/sse-rsqrtps-1.c: Likewise.
	* gcc.target/i386/sse-set-ps-1.c: Likewise.
	* gcc.target/i386/sse-sqrtps-1.c: Likewise.
	* gcc.target/i386/sse-subps-1.c: Likewise.
	* gcc.target/i386/sse-subss-1.c: Likewise.
	* gcc.target/i386/sse-ucomiss-1.c: Likewise.
	* gcc.target/i386/sse-ucomiss-2.c: Likewise.
	* gcc.target/i386/sse-ucomiss-3.c: Likewise.
	* gcc.target/i386/sse-ucomiss-4.c: Likewise.
	* gcc.target/i386/sse-ucomiss-5.c: Likewise.
	* gcc.target/i386/sse-ucomiss-6.c: Likewise.
	* gcc.target/i386/sse-unpckhps-1.c: Likewise.
	* gcc.target/i386/sse-unpcklps-1.c: Likewise.
	* gcc.target/i386/sse-xorps-1.c: Likewise.
	* gcc.target/i386/ssefn-1.c: Likewise.
	* gcc.target/i386/ssefn-3.c: Likewise.
	* gcc.target/i386/sseregparm-1.c: Likewise.
	* gcc.target/i386/stackalign/return-3.c: Likewise.
	* gcc.target/i386/vectorize1.c: Likewise.
	* gcc.target/i386/vperm-v4sf-1.c: Likewise.
	* gcc.target/i386/xorps-sse.c: Likewise.
	* gfortran.dg/pr28158.f90: Likewise.
	* gfortran.dg/pr30667.f: Likewise.
	* gnat.dg/loop_optimization7.adb: Likewise.
	* gnat.dg/sse_nolib.adb: Likewise.

	libgfortran:
	* config/fpu-387.h [__sun__ && __svr4__] Include <signal.h>,
	<ucontext.h>.
	(sigill_caught): New.
	(sigill_hdlr): New function
	(has_sse) [__sun__ && __svr4__]: Check if SSE instruction causes
	SIGILL.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@162073 138bc75d-0d04-0410-961f-82ee72b054a4

2 files changed, 55 insertions, 1 deletions

diff --git a/libgfortran/ChangeLog b/libgfortran/ChangeLog
index 943e8e1db51..0a69beba590 100644
--- a/libgfortran/ChangeLog
+++ b/libgfortran/ChangeLog
@@ -1,3 +1,12 @@
+2010-07-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	* config/fpu-387.h [__sun__ && __svr4__] Include <signal.h>,
+	<ucontext.h>.
+	(sigill_caught): New.
+	(sigill_hdlr): New function
+	(has_sse) [__sun__ && __svr4__]: Check if SSE instruction causes
+	SIGILL.
+
 2010-07-11  Kai Tietz  <kai.tietz@onevision.com>
 
 	PR libfortran/44698
diff --git a/libgfortran/config/fpu-387.h b/libgfortran/config/fpu-387.h
index 573fabcac6d..5fe51b2d209 100644
--- a/libgfortran/config/fpu-387.h
+++ b/libgfortran/config/fpu-387.h
@@ -1,5 +1,5 @@
 /* FPU-related code for x86 and x86_64 processors.
-   Copyright 2005, 2007, 2009 Free Software Foundation, Inc.
+   Copyright 2005, 2007, 2009, 2010 Free Software Foundation, Inc.
    Contributed by Francois-Xavier Coudert <coudert@clipper.ens.fr>
 
 This file is part of the GNU Fortran 95 runtime library (libgfortran).
@@ -27,6 +27,26 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 #include "cpuid.h"
 #endif
 
+#if defined(__sun__) && defined(__svr4__)
+#include <signal.h>
+#include <ucontext.h>
+
+static volatile sig_atomic_t sigill_caught;
+
+static void
+sigill_hdlr (int sig __attribute((unused)),
+	     siginfo_t *sip __attribute__((unused)),
+	     ucontext_t *ucp)
+{
+  sigill_caught = 1;
+  /* Set PC to the instruction after the faulting one to skip over it,
+     otherwise we enter an infinite loop.  4 is the size of the stmxcsr
+     instruction.  */
+  ucp->uc_mcontext.gregs[EIP] += 4;
+  setcontext (ucp);
+}
+#endif
+
 static int
 has_sse (void)
 {
@@ -36,6 +56,31 @@ has_sse (void)
   if (!__get_cpuid (1, &eax, &ebx, &ecx, &edx))
     return 0;
 
+#if defined(__sun__) && defined(__svr4__)
+  /* Solaris 2 before Solaris 9 4/04 cannot execute SSE instructions even
+     if the CPU supports them.  Programs receive SIGILL instead, so check
+     for that at runtime.  */
+
+  if (edx & bit_SSE)
+    {
+      struct sigaction act, oact;
+      unsigned int cw_sse;
+
+      act.sa_handler = sigill_hdlr;
+      sigemptyset (&act.sa_mask);
+      /* Need to set SA_SIGINFO so a ucontext_t * is passed to the handler.  */
+      act.sa_flags = SA_SIGINFO;
+      sigaction (SIGILL, &act, &oact);
+
+      asm volatile ("stmxcsr %0" : "=m" (cw_sse));
+
+      sigaction (SIGILL, &oact, NULL);
+
+      if (sigill_caught)
+	return 0;
+    }
+#endif /* __sun__ && __svr4__ */
+
   return edx & bit_SSE;
 #else
   return 1;