Adjust destination address after gen_strset

gcc/

	PR target/59363
	* config/i386/i386.c (emit_memset): Adjust destination address
	after gen_strset.
	(expand_setmem_epilogue): Likewise.

gcc/testsuite/

	PR target/59363
	* gcc.target/i386/pr59363.c: New file.

From-SVN: r205630

gcc/ChangeLog

+2013-12-03   H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR target/59363
+	* config/i386/i386.c (emit_memset): Adjust destination address
+	after gen_strset.
+	(expand_setmem_epilogue): Likewise.
+
 2013-12-03  Marek Polacek  <polacek@redhat.com>
 
 	PR middle-end/56344

gcc/config/i386/i386.c

@@ -22854,6 +22854,8 @@ emit_memset (rtx destmem, rtx destptr, rtx promoted_val,
       if (piece_size <= GET_MODE_SIZE (word_mode))
 	{
 	  emit_insn (gen_strset (destptr, dst, promoted_val));
+	  dst = adjust_automodify_address_nv (dst, move_mode, destptr,
+					      piece_size);
 	  continue;
 	}
 
@@ -22923,14 +22925,18 @@ expand_setmem_epilogue (rtx destmem, rtx destptr, rtx value, rtx vec_value,
 	{
 	  dest = change_address (destmem, DImode, destptr);
 	  emit_insn (gen_strset (destptr, dest, value));
+	  dest = adjust_automodify_address_nv (dest, DImode, destptr, 8);
 	  emit_insn (gen_strset (destptr, dest, value));
 	}
       else
 	{
 	  dest = change_address (destmem, SImode, destptr);
 	  emit_insn (gen_strset (destptr, dest, value));
+	  dest = adjust_automodify_address_nv (dest, SImode, destptr, 4);
 	  emit_insn (gen_strset (destptr, dest, value));
+	  dest = adjust_automodify_address_nv (dest, SImode, destptr, 8);
 	  emit_insn (gen_strset (destptr, dest, value));
+	  dest = adjust_automodify_address_nv (dest, SImode, destptr, 12);
 	  emit_insn (gen_strset (destptr, dest, value));
 	}
       emit_label (label);
@@ -22948,6 +22954,7 @@ expand_setmem_epilogue (rtx destmem, rtx destptr, rtx value, rtx vec_value,
 	{
 	  dest = change_address (destmem, SImode, destptr);
 	  emit_insn (gen_strset (destptr, dest, value));
+	  dest = adjust_automodify_address_nv (dest, SImode, destptr, 4);
 	  emit_insn (gen_strset (destptr, dest, value));
 	}
       emit_label (label);

gcc/testsuite/ChangeLog

+2013-12-03   H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR target/59363
+	* gcc.target/i386/pr59363.c: New file.
+
 2013-12-03  Marek Polacek  <polacek@redhat.com>
 
 	PR c/59351

gcc/testsuite/gcc.target/i386/pr59363.c

+/* PR target/59363 */
+/* { dg-do run } */
+/* { dg-options "-O2 -mtune=amdfam10" } */
+
+typedef struct {
+  int ctxlen;
+  long interhunkctxlen;
+  int flags;
+  long find_func;
+  void *find_func_priv;
+  int hunk_func;
+} xdemitconf_t;
+
+__attribute__((noinline))
+int xdi_diff(xdemitconf_t *xecfg) {
+  if (xecfg->hunk_func == 0)
+    __builtin_abort();
+  return 0;
+}
+int main() {
+  xdemitconf_t xecfg = {0};
+  xecfg.hunk_func = 1;
+  return xdi_diff(&xecfg);
+}