[PATCH 40/52] ia64: New hook implementation ia64_c_mode_for_floating_type

[Kewen Lin <linkw@linux.ibm.com>]

This is to remove macros {FLOAT,{,LONG_}DOUBLE}_TYPE_SIZE
defines in ia64 port, and add new port specific hook
implementation ia64_c_mode_for_floating_type.

gcc/ChangeLog:

	* config/ia64/ia64.cc (ia64_c_mode_for_floating_type): New
	function.
	(TARGET_C_MODE_FOR_FLOATING_TYPE): New macro.
	* config/ia64/ia64.h (FLOAT_TYPE_SIZE): Remove.
	(DOUBLE_TYPE_SIZE): Likewise.
	(LONG_DOUBLE_TYPE_SIZE): Likewise.
---
 gcc/config/ia64/ia64.cc | 18 ++++++++++++++++++
 gcc/config/ia64/ia64.h  | 12 ------------
 2 files changed, 18 insertions(+), 12 deletions(-)

diff --git a/gcc/config/ia64/ia64.cc b/gcc/config/ia64/ia64.cc
index ac3d56073ac..cd6ed895211 100644
--- a/gcc/config/ia64/ia64.cc
+++ b/gcc/config/ia64/ia64.cc
@@ -321,6 +321,7 @@ static const char *ia64_invalid_conversion (const_tree, const_tree);
 static const char *ia64_invalid_unary_op (int, const_tree);
 static const char *ia64_invalid_binary_op (int, const_tree, const_tree);
 static machine_mode ia64_c_mode_for_suffix (char);
+static machine_mode ia64_c_mode_for_floating_type (enum tree_index);
 static void ia64_trampoline_init (rtx, tree, rtx);
 static void ia64_override_options_after_change (void);
 static bool ia64_member_type_forces_blk (const_tree, machine_mode);
@@ -637,6 +638,9 @@ static const scoped_attribute_specs *const ia64_attribute_table[] =
 #undef TARGET_C_MODE_FOR_SUFFIX
 #define TARGET_C_MODE_FOR_SUFFIX ia64_c_mode_for_suffix
 
+#undef TARGET_C_MODE_FOR_FLOATING_TYPE
+#define TARGET_C_MODE_FOR_FLOATING_TYPE ia64_c_mode_for_floating_type
+
 #undef TARGET_CAN_ELIMINATE
 #define TARGET_CAN_ELIMINATE ia64_can_eliminate
 
@@ -11329,6 +11333,20 @@ ia64_c_mode_for_suffix (char suffix)
   return VOIDmode;
 }
 
+/* Implement TARGET_C_MODE_FOR_FLOATING_TYPE.  Return DFmode, XFmode
+   or TFmode for TI_LONG_DOUBLE_TYPE which is for long double type,
+   go with the default one for the others.  */
+
+static machine_mode
+ia64_c_mode_for_floating_type (enum tree_index ti)
+{
+  /* long double is XFmode normally, and TFmode for HPUX.  It should be
+     TFmode for VMS as well but we only support up to DFmode now.  */
+  if (ti == TI_LONG_DOUBLE_TYPE)
+    return TARGET_HPUX ? TFmode : (TARGET_ABI_OPEN_VMS ? DFmode : XFmode);
+  return default_mode_for_floating_type (ti);
+}
+
 static GTY(()) rtx ia64_dconst_0_5_rtx;
 
 rtx
diff --git a/gcc/config/ia64/ia64.h b/gcc/config/ia64/ia64.h
index b7f9d654f90..763b1c3ed48 100644
--- a/gcc/config/ia64/ia64.h
+++ b/gcc/config/ia64/ia64.h
@@ -236,18 +236,6 @@ while (0)
 
 #define LONG_LONG_TYPE_SIZE 64
 
-#define FLOAT_TYPE_SIZE 32
-
-#define DOUBLE_TYPE_SIZE 64
-
-/* long double is XFmode normally, and TFmode for HPUX.  It should be
-   TFmode for VMS as well but we only support up to DFmode now.  */
-#define LONG_DOUBLE_TYPE_SIZE \
-  (TARGET_HPUX ? 128 \
-   : TARGET_ABI_OPEN_VMS ? 64 \
-   : 80)
-
-
 #define DEFAULT_SIGNED_CHAR 1
 
 /* A C expression for a string describing the name of the data type to use for
-- 
2.43.0