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Re: [patch i386]: Add support of delegitimize of UNSPEC_PCREL plus displacement


Hi,

So tests are complete (with full test on x86_64-unknown-linux-gnu and
testfailure testing on i686-w64-mingw32 and x86_64-w64-mingw32).

ChangeLog

2012-02-23  Kai Tietz  <ktietz@redhat.com>

	* config/i386/i386.c (ix86_delegitimize_address): Handle
	UNSPEC_PCREL plus displacement.

Regression tested for x86_64-w64-mingw32, and
x86_64-unknown-linux-gnu.  Ok for apply?

Regards,
Kai

Index: config/i386/i386.c
===================================================================
--- config/i386/i386.c	(revision 184486)
+++ config/i386/i386.c	(working copy)
@@ -13241,6 +13241,19 @@

   if (TARGET_64BIT)
     {
+      if (GET_CODE (x) == CONST
+          && GET_CODE (XEXP (x, 0)) == PLUS
+          && GET_MODE (XEXP (x, 0)) == Pmode
+          && CONST_INT_P (XEXP (XEXP (x, 0), 1))
+          && GET_CODE (XEXP (XEXP (x, 0), 0)) == UNSPEC
+          && XINT (XEXP (XEXP (x, 0), 0), 1) == UNSPEC_PCREL)
+        {
+	  rtx x2 = XVECEXP (XEXP (XEXP (x, 0), 0), 0, 0);
+	  x = gen_rtx_PLUS (Pmode, XEXP (XEXP (x, 0), 1), x2);
+	  if (MEM_P (orig_x))
+	    x = replace_equiv_address_nv (orig_x, x);
+	  return x;
+	}
       if (GET_CODE (x) != CONST
 	  || GET_CODE (XEXP (x, 0)) != UNSPEC
 	  || (XINT (XEXP (x, 0), 1) != UNSPEC_GOTPCREL


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