i386.c (ix86_scalar_mode_supported_p): Don't return unconditional true for decimal float modes.

	* config/i386/i386.c (ix86_scalar_mode_supported_p): Don't return
	unconditional true for decimal float modes.
	* config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): Ditto.
	* config/s390/s390.c (s390_scalar_mode_supported_p): Ditto.

	* lib/target-supports.exp (check_effective_target_dfp_nocache):
	Check support via mode instead of C type.
	(check_effective_target_dfprt_nocache): Ditto.
	(check_effective_target_hard_dfp): Ditto.

From-SVN: r152030

6 files changed, 22 insertions, 6 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index c32bf1b..36ecde8 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2009-09-22  Janis Johnson  <janis187@us.ibm.com>
+
+	* config/i386/i386.c (ix86_scalar_mode_supported_p): Don't return
+	unconditional true for decimal float modes.
+	* config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): Ditto.
+	* config/s390/s390.c (s390_scalar_mode_supported_p): Ditto.
+
 2009-09-22  Loren J. Rittle  <ljrittle@acm.org>
 
 	* unwind-dw2-fde-glibc.c: Define and use USE_PT_GNU_EH_FRAME.
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index bda1c5f..7c21542 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -28066,7 +28066,7 @@ static bool
 ix86_scalar_mode_supported_p (enum machine_mode mode)
 {
   if (DECIMAL_FLOAT_MODE_P (mode))
-    return true;
+    return default_decimal_float_supported_p ();
   else if (mode == TFmode)
     return true;
   else
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index a4b59c6..83d9ee8 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -25403,7 +25403,7 @@ static bool
 rs6000_scalar_mode_supported_p (enum machine_mode mode)
 {
   if (DECIMAL_FLOAT_MODE_P (mode))
-    return true;
+    return default_decimal_float_supported_p ();
   else
     return default_scalar_mode_supported_p (mode);
 }
diff --git a/gcc/config/s390/s390.c b/gcc/config/s390/s390.c
index 7054e45..e439b01 100644
--- a/gcc/config/s390/s390.c
+++ b/gcc/config/s390/s390.c
@@ -366,7 +366,7 @@ static bool
 s390_scalar_mode_supported_p (enum machine_mode mode)
 {
   if (DECIMAL_FLOAT_MODE_P (mode))
-    return true;
+    return default_decimal_float_supported_p ();
   else
     return default_scalar_mode_supported_p (mode);
 }
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 981e8e3..6db9d35 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,10 @@
+2009-09-22  Janis Johnson  <janis187@us.ibm.com>
+
+	* lib/target-supports.exp (check_effective_target_dfp_nocache):
+	Check support via mode instead of C type.
+	(check_effective_target_dfprt_nocache): Ditto.
+	(check_effective_target_hard_dfp): Ditto.
+
 2009-09-22  Richard Guenther  <rguenther@suse.de>
 
 	PR middle-end/41395
diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp
index 9189938..0e29668 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -1295,7 +1295,7 @@ proc check_effective_target_fixed_point { } {
 proc check_effective_target_dfp_nocache { } {
     verbose "check_effective_target_dfp_nocache: compiling source" 2
     set ret [check_no_compiler_messages_nocache dfp object {
-        _Decimal32 x; _Decimal64 y; _Decimal128 z;
+	float x __attribute__((mode(DD)));
     }]
     verbose "check_effective_target_dfp_nocache: returning $ret" 2
     return $ret
@@ -1303,7 +1303,8 @@ proc check_effective_target_dfp_nocache { } {
 
 proc check_effective_target_dfprt_nocache { } {
     return [check_runtime_nocache dfprt {
-	_Decimal32 x = 1.2df; _Decimal64 y = 2.3dd; _Decimal128 z;
+	typedef float d64 __attribute__((mode(DD)));
+	d64 x = 1.2df; y = 2.3dd; z;
 	int main () { z = x + y; return 0; }
     }]
 }
@@ -3069,7 +3070,8 @@ proc check_effective_target_pow10 { } {
 
 proc check_effective_target_hard_dfp {} {
     return [check_no_messages_and_pattern hard_dfp "!adddd3" assembly {
-	_Decimal64 x, y, z;
+	typedef float d64 __attribute__((mode(DD)));
+	d64 x, y, z;
 	void foo (void) { z = x + y; }
     }]
 }