Revert the entire VLA series.

This reverts the following patch series, as they cause some regresssions.

commit 37c1ab67a35025d37d42c449deab5f254f9f59da
type: add c99 variable length array support

	gdb/
	* dwarf2loc.c (dwarf2_locexpr_baton_eval): New function.
	(dwarf2_evaluate_property): New function.
	* dwarf2loc.h (dwarf2_evaluate_property): New function prototype.
	* dwarf2read.c (attr_to_dynamic_prop): New function.
	(read_subrange_type): Use attr_to_dynamic_prop to read high bound
	attribute.
	* gdbtypes.c: Include dwarf2loc.h.
	(is_dynamic_type): New function.
	(resolve_dynamic_type): New function.
	(resolve_dynamic_bounds): New function.
	(get_type_length): New function.
	(check_typedef): Use get_type_length to compute type length.
	* gdbtypes.h (TYPE_HIGH_BOUND_KIND): New macro.
	(TYPE_LOW_BOUND_KIND): New macro.
	(is_dynamic_type): New function prototype.
	* value.c (value_from_contents_and_address): Call resolve_dynamic_type
	to resolve dynamic properties of the type. Update comment.
	* valops.c (get_value_at, value_at, value_at_lazy): Update comment.

commit 26cb189f8b46dbe7b2d485525329a8919005ca8a
vla: enable sizeof operator to work with variable length arrays

	gdb/
	* eval.c (evaluate_subexp_for_sizeof) <OP_VAR_VALUE>: If the type
	passed to sizeof is dynamic evaluate the argument to compute the length.

commit 04b19544ef6a97b62b2cc4a3170b900e046ab185
vla: enable sizeof operator for indirection

	gdb/
	* eval.c (evaluate_subexp_for_sizeof) <UNOP_IND>: Create an indirect
	value and retrieve the dynamic type size.

commit bcd629a44fff61527430f353cf77e20fe3afc395
vla: update type from newly created value

	gdb/
	* ada-lang.c (ada_value_primitive_packed_val): Re-fetch type from value.
	(ada_template_to_fixed_record_type_1): Likewise.
	(ada_to_fixed_type_1): Likewise.
	* cp-valprint.c (cp_print_value_fields_rtti): Likewise.
	(cp_print_value): Likewise.
	* d-valprint.c (dynamic_array_type): Likewise.
	* eval.c (evaluate_subexp_with_coercion): Likewise.
	* findvar.c (address_of_variable): Likewise.
	* jv-valprint.c (java_value_print): Likewise.
	* valops.c (value_ind): Likewise.
	* value.c (coerce_ref): Likewise.

commit b86138fb0484f42db6cb83abed1e3d0ad2ec4eac
vla: print "variable length" for unresolved dynamic bounds

	gdb/
	* c-typeprint.c (c_type_print_varspec_suffix): Added
	check for not yet resolved high bound. If unresolved, print
	"variable length" string to the console instead of random
	length.

commit e1969afbd454c09c3aad1990305715f70bc47c3c
vla: support for DW_AT_count

	gdb/
	* dwarf2read.c (read_subrange_type): Convert DW_AT_count to a dynamic
	property and store it as the high bound and flag the range accordingly.
	* gdbtypes.c (resolve_dynamic_bounds): If range is flagged as
	RANGE_UPPER_BOUND_IS_COUNT assign low + high - 1 as the new high bound.
	* gdbtypes.h (enum range_flags): New enum.
	(struct range_bounds): Add flags member.

commit 92b09522dc5a93ba4bda3c1c0b3c58264e357c8a
vla: resolve dynamic bounds if value contents is a constant byte-sequence

	gdb/
	* findvar.c (default_read_var_value): Resolve dynamic bounds if location
	points to a constant blob.

commit 3bce82377f683870cc89925ff43aefb7dcce4a77
vla: evaluate operand of sizeof if its type is a vla

	gdb/
	* eval.c (evaluate_subexp_for_sizeof): Add enum noside argument.
	(evaluate_subexp_standard): Pass noside argument.
	(evaluate_subexp_for_sizeof) <BINOP_SUBSCRIPT>: Handle subscript case
	if noside equals EVAL_NORMAL. If the subscript yields a vla type
	re-evaluate subscript operation with EVAL_NORMAL to enable sideffects.
	* gdbtypes.c (resolve_dynamic_bounds): Mark bound as evaluated.
	* gdbtypes.h (enum range_flags): Add RANGE_EVALUATED case.

	gdb/testsuite

	* gdb.base/vla-sideeffect.c: New file.
	* gdb.base/vla-sideeffect.exp: New file.

commit 504f34326e5ae7c78ebfcdd6ed03c7403b42048b
test: cover subranges with present DW_AT_count attribute

	gdb/testsuite/
	* gdb.dwarf2/count.exp: New file.

commit 1a237e0ee53bbdee97d72d794b5b42e774cc81c0
test: multi-dimensional c99 vla.

	gdb/testsuite/
	* gdb.base/vla-multi.c: New file.
	* gdb.base/vla-multi.exp: New file.

commit 024e13b46f9c33d151ae82fd9d64c53092fd9313
test: evaluate pointers to C99 vla correctly.

	gdb/testsuite/
	* gdb.base/vla-ptr.c: New file.
	* gdb.base/vla-ptr.exp: New file.

commit c8655f75e2f0fada311be193e3090087a77ec802
test: basic c99 vla tests for C primitives

	gdb/testsuite/
	* gdb.base/vla-datatypes.c: New file.
	* gdb.base/vla-datatypes.exp: New file.

commit 58a84dcf29b735ee776536b4c51ba90b51612b71
test: add mi vla test

	gdb/testsuite/
	* gdb.mi/mi-vla-c99.exp: New file.
	* gdb.mi/vla.c: New file.

1 files changed, 7 insertions, 52 deletions

diff --git a/gdb/eval.c b/gdb/eval.c
index 2a1c662..c1e47e0 100644
--- a/gdb/eval.c
+++ b/gdb/eval.c
@@ -50,8 +50,7 @@ extern int overload_resolution;
 
 /* Prototypes for local functions.  */
 
-static struct value *evaluate_subexp_for_sizeof (struct expression *, int *,
-						 enum noside);
+static struct value *evaluate_subexp_for_sizeof (struct expression *, int *);
 
 static struct value *evaluate_subexp_for_address (struct expression *,
 						  int *, enum noside);
@@ -2563,7 +2562,7 @@ evaluate_subexp_standard (struct type *expect_type,
 	  evaluate_subexp (NULL_TYPE, exp, pos, EVAL_SKIP);
 	  goto nosideret;
 	}
-      return evaluate_subexp_for_sizeof (exp, pos, noside);
+      return evaluate_subexp_for_sizeof (exp, pos);
 
     case UNOP_CAST:
       (*pos) += 2;
@@ -2985,7 +2984,6 @@ evaluate_subexp_with_coercion (struct expression *exp,
 	{
 	  (*pos) += 4;
 	  val = address_of_variable (var, exp->elts[pc + 1].block);
-	  type = value_type (val);
 	  return value_cast (lookup_pointer_type (TYPE_TARGET_TYPE (type)),
 			     val);
 	}
@@ -2998,13 +2996,10 @@ evaluate_subexp_with_coercion (struct expression *exp,
 
 /* Evaluate a subexpression of EXP, at index *POS,
    and return a value for the size of that subexpression.
-   Advance *POS over the subexpression.  If NOSIDE is EVAL_NORMAL
-   we allow side-effects on the operand if its type is a variable
-   length array.   */
+   Advance *POS over the subexpression.  */
 
 static struct value *
-evaluate_subexp_for_sizeof (struct expression *exp, int *pos,
-			    enum noside noside)
+evaluate_subexp_for_sizeof (struct expression *exp, int *pos)
 {
   /* FIXME: This should be size_t.  */
   struct type *size_type = builtin_type (exp->gdbarch)->builtin_int;
@@ -3030,10 +3025,7 @@ evaluate_subexp_for_sizeof (struct expression *exp, int *pos,
 	  && TYPE_CODE (type) != TYPE_CODE_REF
 	  && TYPE_CODE (type) != TYPE_CODE_ARRAY)
 	error (_("Attempt to take contents of a non-pointer value."));
-      if (is_dynamic_type (type))
-	type = value_type (value_ind (val));
-      else
-	type = TYPE_TARGET_TYPE (type);
+      type = TYPE_TARGET_TYPE (type);
       break;
 
     case UNOP_MEMVAL:
@@ -3048,47 +3040,10 @@ evaluate_subexp_for_sizeof (struct expression *exp, int *pos,
       break;
 
     case OP_VAR_VALUE:
-      type = check_typedef (SYMBOL_TYPE (exp->elts[pc + 2].symbol));
-      if (is_dynamic_type (type))
-	{
-	  val = evaluate_subexp (NULL_TYPE, exp, pos, EVAL_NORMAL);
-	  type = value_type (val);
-	}
-      else
-	(*pos) += 4;
+      (*pos) += 4;
+      type = SYMBOL_TYPE (exp->elts[pc + 2].symbol);
       break;
 
-      /* Deal with the special case if NOSIDE is EVAL_NORMAL and the resulting
-	 type of the subscript is a variable length array type. In this case we
-	 must re-evaluate the right hand side of the subcription to allow
-	 side-effects. */
-    case BINOP_SUBSCRIPT:
-      if (noside == EVAL_NORMAL)
-	{
-	  int pc = (*pos) + 1;
-
-	  val = evaluate_subexp (NULL_TYPE, exp, &pc, EVAL_AVOID_SIDE_EFFECTS);
-	  type = check_typedef (value_type (val));
-	  if (TYPE_CODE (type) == TYPE_CODE_ARRAY)
-	    {
-	      type = check_typedef (TYPE_TARGET_TYPE (type));
-	      if (TYPE_CODE (type) == TYPE_CODE_ARRAY)
-		{
-		  type = TYPE_INDEX_TYPE (type);
-		  /* Only re-evaluate the right hand side if the resulting type
-		     is a variable length type.  */
-		  if (TYPE_RANGE_DATA (type)->flag_bound_evaluated)
-		    {
-		      val = evaluate_subexp (NULL_TYPE, exp, pos, EVAL_NORMAL);
-		      type = value_type (val);
-		      break;
-		    }
-		}
-	    }
-	}
-
-      /* Fall through.  */
-
     default:
       val = evaluate_subexp (NULL_TYPE, exp, pos, EVAL_AVOID_SIDE_EFFECTS);
       type = value_type (val);