re PR target/24367 (unrecognizable insn with -fPIC -O2 -funroll-loops)

2006-08-31  Andreas Krebbel  <krebbel1@de.ibm.com>

	PR target/24367
	* config/s390/s390.md ("movsi", "movdi" expander): Accept rtxes like
	r12 + SYMBOLIC_CONST.

2006-08-31  Andreas Krebbel  <krebbel1@de.ibm.com>

	PR target/24367
	* gcc.dg/pr24367.c: New testcase.

From-SVN: r116599

gcc/ChangeLog

+2006-08-31  Andreas Krebbel  <krebbel1@de.ibm.com>
+
+	PR target/24367
+	* config/s390/s390.md ("movsi", "movdi" expander): Accept rtxes like
+	r12 + SYMBOLIC_CONST.
+
 2006-08-30  Richard Guenther  <rguenther@suse.de>
 
 	* Makefile.in (see.o): Add $(EXPR_H) dependency.

gcc/config/s390/s390.md

@@ -907,7 +907,11 @@
   ""
 {
   /* Handle symbolic constants.  */
-  if (TARGET_64BIT && SYMBOLIC_CONST (operands[1]))
+  if (TARGET_64BIT
+      && (SYMBOLIC_CONST (operands[1])
+	  || (GET_CODE (operands[1]) == PLUS
+	      && XEXP (operands[1], 0) == pic_offset_table_rtx
+	      && SYMBOLIC_CONST (XEXP (operands[1], 1)))))
     emit_symbolic_move (operands);
 })
 
@@ -1158,7 +1162,11 @@
   ""
 {
   /* Handle symbolic constants.  */
-  if (!TARGET_64BIT && SYMBOLIC_CONST (operands[1]))
+  if (!TARGET_64BIT
+      && (SYMBOLIC_CONST (operands[1])
+	  || (GET_CODE (operands[1]) == PLUS
+	      && XEXP (operands[1], 0) == pic_offset_table_rtx
+	      && SYMBOLIC_CONST (XEXP(operands[1], 1)))))
     emit_symbolic_move (operands);
 })
 

gcc/testsuite/ChangeLog

+2006-08-31  Andreas Krebbel  <krebbel1@de.ibm.com>
+
+	PR target/24367
+	* gcc.dg/pr24367.c: New testcase.
+
 2006-08-30  Joseph Myers  <joseph@codesourcery.com>
 
 	* gcc.dg/arm-mmx-1.c: Skip for -mfloat-abi=softfp.

gcc/testsuite/gcc.dg/pr24367.c

+/* { dg-do compile { target fpic } } */
+/* { dg-options "-O2 -fPIC -funroll-loops" } */
+
+char *
+test (const char *parent, const char *child)
+{
+  static char rtn_path[1024];
+  char *s = rtn_path;
+  char *s_end = rtn_path + sizeof (rtn_path);
+  const char *s2 = child;
+
+  while (*s != '\0')
+    s++;
+  while ((s < s_end) && (*s2 != '\0'))
+    *s++ = *s2++;
+  return (rtn_path);
+}