floatunsisf.c, [...]: New files.

* config/floatunsisf.c, config/floatunsidf.c,
	config/floatunsixf.c, config/floatunsitf.c: New files.
	* config/ia64/t-hpux: Add floatunsitf.c.
	* config/ia64/ia64.c (ia64_init_libfuncs): Use
	_U_Qfcnvxuf_dbl_to_quad for unsigned DImode-to-TFmode conversion.

From-SVN: r107558

gcc/ChangeLog

@@ -1,3 +1,11 @@
+2005-11-27  Joseph S. Myers  <joseph@codesourcery.com>
+
+	* config/floatunsisf.c, config/floatunsidf.c,
+	config/floatunsixf.c, config/floatunsitf.c: New files.
+	* config/ia64/t-hpux: Add floatunsitf.c.
+	* config/ia64/ia64.c (ia64_init_libfuncs): Use
+	_U_Qfcnvxuf_dbl_to_quad for unsigned DImode-to-TFmode conversion.
+
 2005-11-26  Richard Henderson  <rth@redhat.com>
 
 	* c-lex.c (pragma_lex): Rename from c_lex.

gcc/config/floatunsidf.c

@@ -0,0 +1,15 @@
+/* Public domain.  */
+typedef int SItype __attribute__ ((mode (SI)));
+typedef unsigned int USItype __attribute__ ((mode (SI)));
+typedef float DFtype __attribute__ ((mode (DF)));
+
+DFtype
+__floatunsidf (USItype u)
+{
+  SItype s = (SItype) u;
+  DFtype r = (DFtype) s;
+  if (s < 0)
+    r += (DFtype)2.0 * (DFtype) ((USItype) 1
+				 << (sizeof (USItype) * __CHAR_BIT__ - 1));
+  return r;
+}

gcc/config/floatunsisf.c

@@ -0,0 +1,18 @@
+/* Public domain.  */
+typedef int SItype __attribute__ ((mode (SI)));
+typedef unsigned int USItype __attribute__ ((mode (SI)));
+typedef float SFtype __attribute__ ((mode (SF)));
+
+SFtype
+__floatunsisf (USItype u)
+{
+  SItype s = (SItype) u;
+  if (s < 0)
+    {
+      /* As in expand_float, compute (u & 1) | (u >> 1) to ensure
+	 correct rounding if a nonzero bit is shifted out.  */
+      return (SFtype) 2.0 * (SFtype) (SItype) ((u & 1) | (u >> 1));
+    }
+  else
+    return (SFtype) s;
+}

gcc/config/floatunsitf.c

@@ -0,0 +1,15 @@
+/* Public domain.  */
+typedef int SItype __attribute__ ((mode (SI)));
+typedef unsigned int USItype __attribute__ ((mode (SI)));
+typedef float TFtype __attribute__ ((mode (TF)));
+
+TFtype
+__floatunsitf (USItype u)
+{
+  SItype s = (SItype) u;
+  TFtype r = (TFtype) s;
+  if (s < 0)
+    r += (TFtype)2.0 * (TFtype) ((USItype) 1
+				 << (sizeof (USItype) * __CHAR_BIT__ - 1));
+  return r;
+}

gcc/config/floatunsixf.c

@@ -0,0 +1,15 @@
+/* Public domain.  */
+typedef int SItype __attribute__ ((mode (SI)));
+typedef unsigned int USItype __attribute__ ((mode (SI)));
+typedef float XFtype __attribute__ ((mode (XF)));
+
+XFtype
+__floatunsixf (USItype u)
+{
+  SItype s = (SItype) u;
+  XFtype r = (XFtype) s;
+  if (s < 0)
+    r += (XFtype)2.0 * (XFtype) ((USItype) 1
+				 << (sizeof (USItype) * __CHAR_BIT__ - 1));
+  return r;
+}

gcc/config/ia64/ia64.c

@@ -8437,6 +8437,9 @@ ia64_init_libfuncs (void)
 
   set_conv_libfunc (sfloat_optab, TFmode, SImode, "_U_Qfcnvxf_sgl_to_quad");
   set_conv_libfunc (sfloat_optab, TFmode, DImode, "_U_Qfcnvxf_dbl_to_quad");
+  /* HP-UX 11.23 libc does not have a function for unsigned
+     SImode-to-TFmode conversion.  */
+  set_conv_libfunc (ufloat_optab, TFmode, DImode, "_U_Qfcnvxuf_dbl_to_quad");
 }
 
 /* Rename all the TFmode libfuncs using the HPUX conventions.  */

gcc/config/ia64/t-hpux

@@ -9,7 +9,7 @@ MULTILIB_MATCHES =
 
 # Support routines for HP-UX 128 bit floats.
 
-LIB2FUNCS_EXTRA=quadlib.c
+LIB2FUNCS_EXTRA=quadlib.c $(srcdir)/config/floatunsitf.c
 
 quadlib.c: $(srcdir)/config/ia64/quadlib.c
 	cat $(srcdir)/config/ia64/quadlib.c > quadlib.c