ffi.c (ffi_prep_args64): Correct long double handling.

	* src/powerpc/ffi.c (ffi_prep_args64): Correct long double handling.
	(ffi_closure_helper_LINUX64): Fix typo.
	* testsuite/libffi.call/cls_align_longdouble.c: Pass -mlong-double-128
	for powerpc64-*-*.
	* testsuite/libffi.call/float.c: Likewise.
	* testsuite/libffi.call/float2.c: Likewise.

From-SVN: r77522

libffi/ChangeLog

+2004-02-09  Alan Modra  <amodra@bigpond.net.au>
+
+	* src/powerpc/ffi.c (ffi_prep_args64): Correct long double handling.
+	(ffi_closure_helper_LINUX64): Fix typo.
+	* testsuite/libffi.call/cls_align_longdouble.c: Pass -mlong-double-128
+	for powerpc64-*-*.
+	* testsuite/libffi.call/float.c: Likewise.
+	* testsuite/libffi.call/float2.c: Likewise.
+
 2004-02-08  Alan Modra  <amodra@bigpond.net.au>
 
 	* src/powerpc/ffi.c (ffi_prep_cif_machdep <FFI_LINUX64>): Correct

libffi/src/powerpc/ffi.c

@@ -369,10 +369,27 @@ void hidden ffi_prep_args64(extended_cif *ecif, unsigned long *const stack)
 	  FFI_ASSERT(flags & FLAG_FP_ARGUMENTS);
 	  break;
 
-	case FFI_TYPE_STRUCT:
 #if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
 	case FFI_TYPE_LONGDOUBLE:
+	  double_tmp = ((double *) *p_argv)[0];
+	  *(double *) next_arg = double_tmp;
+	  if (++next_arg == gpr_end)
+	    next_arg = rest;
+	  if (fparg_count < NUM_FPR_ARG_REGISTERS64)
+	    *fpr_base++ = double_tmp;
+	  fparg_count++;
+	  double_tmp = ((double *) *p_argv)[1];
+	  *(double *) next_arg = double_tmp;
+	  if (++next_arg == gpr_end)
+	    next_arg = rest;
+	  if (fparg_count < NUM_FPR_ARG_REGISTERS64)
+	    *fpr_base++ = double_tmp;
+	  fparg_count++;
+	  FFI_ASSERT(flags & FLAG_FP_ARGUMENTS);
+	  break;
 #endif
+
+	case FFI_TYPE_STRUCT:
 	  words = ((*ptr)->size + 7) / 8;
 	  if (next_arg >= gpr_base && next_arg + words > gpr_end)
 	    {
@@ -1079,7 +1096,7 @@ ffi_closure_helper_LINUX64 (ffi_closure *closure, void *rvalue,
 
 #if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
 	case FFI_TYPE_LONGDOUBLE:
-	  if (prf + 1 < end_pfr)
+	  if (pfr + 1 < end_pfr)
 	    {
 	      avalue[i] = pfr;
 	      pfr += 2;

libffi/testsuite/libffi.call/cls_align_longdouble.c

@@ -5,6 +5,8 @@
    Originator:	<hos@tamanegi.org> 20031203	 */
 
 /* { dg-do run { xfail mips*-*-* arm*-*-* strongarm*-*-* xscale*-*-* } } */
+/* { dg-options -mlong-double-128 { target powerpc64*-*-* } } */
+
 #include "ffitest.h"
 
 typedef struct cls_struct_align {

libffi/testsuite/libffi.call/float.c

@@ -5,6 +5,8 @@
    Originator:	From the original ffitest.c  */
 
 /* { dg-do run } */
+/* { dg-options -mlong-double-128 { target powerpc64*-*-* } } */
+
 #include "ffitest.h"
 
 static int floating(int a, float b, double c, long double d, int e)
@@ -28,8 +30,6 @@ int main (void)
   double d;
   long double ld;
   signed int si2;
-  
-
 
   args[0] = &ffi_type_sint;
   values[0] = &si1;
@@ -41,7 +41,7 @@ int main (void)
   values[3] = &ld;
   args[4] = &ffi_type_sint;
   values[4] = &si2;
-    
+
   /* Initialize the cif */
   CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 5,
 		     &ffi_type_sint, args) == FFI_OK);
@@ -51,15 +51,14 @@ int main (void)
   d = (double)1.0/(double)3.0;
   ld = 2.71828182846L;
   si2 = 10;
-  
+
   floating (si1, f, d, ld, si2);
-  
+
   ffi_call(&cif, FFI_FN(floating), &rint, values);
-  
+
   printf ("%d vs %d\n", (int)rint, floating (si1, f, d, ld, si2));
-  
+
   CHECK(rint == floating(si1, f, d, ld, si2));
-  
+
   exit (0);
 }
-  

libffi/testsuite/libffi.call/float2.c

@@ -5,6 +5,8 @@
    Originator:	From the original ffitest.c  */
 
 /* { dg-do run } */
+/* { dg-options -mlong-double-128 { target powerpc64*-*-* } } */
+
 #include "ffitest.h"
 #include "float.h"
 
@@ -23,14 +25,14 @@ int main (void)
 
   args[0] = &ffi_type_float;
   values[0] = &f;
-  
+
   /* Initialize the cif */
-  CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1, 
+  CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1,
 		     &ffi_type_longdouble, args) == FFI_OK);
-  
+
   f = 3.14159;
-  
-#if 1 
+
+#if 1
   /* This is ifdef'd out for now. long double support under SunOS/gcc
      is pretty much non-existent.  You'll get the odd bus error in library
      routines like printf().  */
@@ -38,14 +40,14 @@ int main (void)
 #endif
   ld = 666;
   ffi_call(&cif, FFI_FN(ldblit), &ld, values);
-  
-#if 1 
+
+#if 1
   /* This is ifdef'd out for now. long double support under SunOS/gcc
      is pretty much non-existent.  You'll get the odd bus error in library
      routines like printf().  */
   printf ("%Lf, %Lf, %Lf, %Lf\n", ld, ldblit(f), ld - ldblit(f), LDBL_EPSILON);
 #endif
-  
+
   /* These are not always the same!! Check for a reasonable delta */
   /*@-realcompare@*/
   if (ld - ldblit(f) < LDBL_EPSILON)