re PR target/20928 (ICE: unrecognizable insns with -fPIC -O1)

	PR target/20928
	* i386.c (legitimize_pic_address): Deal with large immediates.

	* gcc.c-torture/compile/pr20928.c: New test.

From-SVN: r106284

gcc/ChangeLog

 2005-10-31  Jan Hubicka  <jh@suse.cz>
 
+	PR target/20928
+	* i386.c (legitimize_pic_address): Deal with large immediates.
+
 	PR profile/20815
 	* coverage.c (coverage_checksum_string): Fix code to stip random seeds
 	from symbol names while computing checkup.

gcc/config/i386/i386.c

@@ -6016,7 +6016,18 @@ legitimize_pic_address (rtx orig, rtx reg)
     }
   else
     {
-      if (GET_CODE (addr) == CONST)
+      if (GET_CODE (addr) == CONST_INT
+	  && !x86_64_immediate_operand (addr, VOIDmode))
+	{
+	  if (reg)
+	    {
+	      emit_move_insn (reg, addr);
+	      new = reg;
+	    }
+	  else
+	    new = force_reg (Pmode, addr);
+	}
+      else if (GET_CODE (addr) == CONST)
 	{
 	  addr = XEXP (addr, 0);
 

gcc/testsuite/ChangeLog

+2005-10-31  Jan Hubicka  <jh@suse.cz>
+
+	PR target/20928
+	* gcc.c-torture/compile/pr20928.c: New test.
+
 2005-10-31  Andrew Pinski  <pinskia@physics.uc.edu>
 
 	PR middle-end/23492

gcc/testsuite/gcc.c-torture/compile/pr20928.c

+extern struct bar_t bar;
+void *a;
+void
+foo (void)
+{
+  void **p = a;
+  do {
+    *p++ = ((unsigned char *) &bar + ((unsigned long int) 1L << 31));
+  } while (p);
+}