[PATCH] Implement vect_cmdline_needed properly on sparc.

[PATCH] Implement vect_cmdline_needed properly on sparc.

[David Miller]

I've been wondering why gen-vect-11{,c}.c were failing when running
the testsuite with a compiler defaulting to ultrasparc3 or later.

The problem is that now that we turn on VIS by default for those chips
we need to check this properly in the testsuite target support
predicates.

Luckily we have the __VIS__ define now, so we can just check that.

Committed to trunk.

gcc/testsuite/

	* lib/target-supports.exp (check_effective_target_sparc_vis): New.
	(check_effective_target_vect_cmdline_needed): Use it when sparc*-*-*
---
 gcc/testsuite/ChangeLog               |    5 +++++
 gcc/testsuite/lib/target-supports.exp |   17 +++++++++++++++++
 2 files changed, 22 insertions(+), 0 deletions(-)

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 1e46164..0b7167b 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2011-11-08  David S. Miller  <davem@davemloft.net>
+
+	* lib/target-supports.exp (check_effective_target_sparc_vis): New.
+	(check_effective_target_vect_cmdline_needed): Use it when sparc*-*-*
+
 2011-11-08  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
 
 	PR fortran/50404
diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp
index 437e181..6e30233 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -1775,6 +1775,7 @@ proc check_effective_target_vect_cmdline_needed { } {
 	     || ([istarget powerpc*-*-*]
 		 && ([check_effective_target_powerpc_spe]
 		     || [check_effective_target_powerpc_altivec]))
+	     || ([istarget sparc*-*-*] && [check_effective_target_sparc_vis])
              || [istarget spu-*-*]
 	     || ([istarget arm*-*-*] && [check_effective_target_arm_neon]) } {
 	   set et_vect_cmdline_needed_saved 0
@@ -2489,6 +2490,22 @@ proc check_effective_target_ultrasparc_vis3_hw { } {
     } "-mcpu=niagara3"]
 }
 
+# Return 1 if this is a Sparc target with VIS enabled.
+
+proc check_effective_target_sparc_vis { } {
+    if { [istarget sparc*-*-*] } {
+	return [check_no_compiler_messages sparc_vis object {
+	    #ifndef __VIS__
+	    #error not VIS
+	    #else
+	    int dummy;
+	    #endif
+	}]
+    } else {
+	return 0
+    }
+}
+
 # Return 1 if the target supports hardware vector shift operation.
 
 proc check_effective_target_vect_shift { } {
-- 
1.7.6.401.g6a319