re PR middle-end/26334 (ICE in lhd_set_decl_assembler_name)

	PR middle-end/26334
	* stmt.c (decl_overlaps_hard_reg_set_p): Use DECL_HARD_REGISTER
	instead of DECL_REGISTER.

	* gcc.c-torture/compile/20060217-1.c: New test.
	* gcc.dg/20060218-1.c: New test.

From-SVN: r111247

gcc/ChangeLog

+2006-02-18  Jakub Jelinek  <jakub@redhat.com>
+
+	PR middle-end/26334
+	* stmt.c (decl_overlaps_hard_reg_set_p): Use DECL_HARD_REGISTER
+	instead of DECL_REGISTER.
+
 2006-02-18  Olivier Hainque  <hainque@adacore.com>
 
 	PR ada/13408

gcc/stmt.c

@@ -567,9 +567,9 @@ decl_overlaps_hard_reg_set_p (tree *declp, int *walk_subtrees ATTRIBUTE_UNUSED,
   tree decl = *declp;
   const HARD_REG_SET *regs = data;
 
-  if (TREE_CODE (decl) == VAR_DECL || TREE_CODE (decl) == PARM_DECL)
+  if (TREE_CODE (decl) == VAR_DECL)
     {
-      if (DECL_REGISTER (decl)
+      if (DECL_HARD_REGISTER (decl)
 	  && REG_P (DECL_RTL (decl))
 	  && REGNO (DECL_RTL (decl)) < FIRST_PSEUDO_REGISTER)
 	{
@@ -585,7 +585,7 @@ decl_overlaps_hard_reg_set_p (tree *declp, int *walk_subtrees ATTRIBUTE_UNUSED,
 	}
       walk_subtrees = 0;
     }
-  else if (TYPE_P (decl))
+  else if (TYPE_P (decl) || TREE_CODE (decl) == PARM_DECL)
     walk_subtrees = 0;
   return NULL_TREE;
 }

gcc/testsuite/ChangeLog

+2006-02-18  Jakub Jelinek  <jakub@redhat.com>
+
+	PR middle-end/26334
+	* gcc.c-torture/compile/20060217-1.c: New test.
+	* gcc.dg/20060218-1.c: New test.
+
 2006-02-18  Joseph S. Myers  <joseph@codesourcery.com>
 
 	* gcc.dg/glibc-uclibc-1.c, gcc.dg/glibc-uclibc-2.c: New tests.

gcc/testsuite/gcc.c-torture/compile/20060217-1.c

+/* PR middle-end/26334 */
+
+struct U
+{
+  unsigned int u[256];
+};
+
+struct S
+{
+  int u, v, w, x;
+  int s[255];
+};
+
+int
+foo (struct U *x, struct S *y)
+{
+  register int i;
+  for (i = 0; i < 255; i++)
+    {
+      unsigned int v;
+      __asm__ ("" : "=r" (v) : "0" (x->u[i + 1]) : "cc");
+      y->s[i] = v;
+    }
+  return 0;
+}

gcc/testsuite/gcc.dg/20060218-1.c

+/* { dg-do compile } */
+
+void
+foo (void)
+{
+  register int cc __asm ("cc"); /* { dg-error "invalid register name" } */
+  __asm ("" : : "r" (cc) : "cc");
+}