PATCH [2/n] X32: Turn on 64bit and check models for x32

[H.J. Lu]

Hi,

This patch turns on 64bit and check models for x32.  OK for trunk?

Thanks.

H.J.
---
2011-07-09  H.J. Lu  <hongjiu...@intel.com>

        * config/i386/i386.c (ix86_option_override_internal): Turn on
        OPTION_MASK_ISA_64BIT for TARGET_X32.  Only allow small and
        small PIC models for TARGET_X32.

diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 04cb07d..c852719 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -2973,6 +2973,9 @@ ix86_option_override_internal (bool main_args_p)
   SUBSUBTARGET_OVERRIDE_OPTIONS;
 #endif
 
+  if (TARGET_X32)
+    ix86_isa_flags |= OPTION_MASK_ISA_64BIT;
+
   /* -fPIC is the default for x86_64.  */
   if (TARGET_MACHO && TARGET_64BIT)
     flag_pic = 2;
@@ -3064,6 +3067,9 @@ ix86_option_override_internal (bool main_args_p)
          if (!TARGET_64BIT)
            error ("code model %qs not supported in the %s bit mode",
                   "medium", "32");
+         else if (TARGET_X32)
+           error ("code model %qs not supported in x32 mode",
+                  "medium");
          break;
 
        case CM_LARGE:
@@ -3073,6 +3079,9 @@ ix86_option_override_internal (bool main_args_p)
          if (!TARGET_64BIT)
            error ("code model %qs not supported in the %s bit mode",
                   "large", "32");
+         else if (TARGET_X32)
+           error ("code model %qs not supported in x32 mode",
+                  "medium");
          break;
 
        case CM_32: