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tree-cfg.c (verify_expr): Check for NON_LVALUE_EXPR as unreachable case. 

* tree-cfg.c (verify_expr): Check for NON_LVALUE_EXPR as
        unreachable case.

        * tree-vrp.c (extract_range_from_unary_expr): Removed unused
        NON_LVALUE_EXPR.

        * tree-ssa-threadedge.c (simplify_control_stmt_condition):
        Likewise.
        
        * tree-ssa-structalias.c (get_constraint_for): Likewise.

        * tree-inline.c (estimate_num_insns_1): Likewise.

        * varasm.c (const_hash_1, compare_constant, copy_constant)
        (compute_reloc_for_constant, output_addressed_constants):
        Likewise.

        * emit-rtl.c (component_ref_for_mem_expr)
        (set_mem_attributes_minus_bitpos): Likewise.

        * expr.c (highest_pow2_factor, expand_expr_real_1, )
        (is_aligning_offset): Likewise.

        * dwarf2out.c (loc_descriptor_from_tree_1, add_bound_info):
        Likewise.

        * tree-ssa-loop-ivopts.c (may_be_nonaddressable_p): Likewise.

        * dojump.c (do_jump): Likewise.

        * builtins.c (get_pointer_alignment, get_memory_rtx)
        (integer_valued_real_p, fold_builtin_next_arg): Likewise.

        * tree-scalar-evolution.c (instantiate_parameters_1): Likewise.

From-SVN: r134591
This commit is contained in:
Tomas Bily 2008-04-23 14:50:17 +02:00
parent e24703834e
commit a134e5f370
13 changed files with 13 additions and 38 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
gcc/builtins.c
View File

@ -281,7 +281,6 @@ get_pointer_alignment (tree exp, unsigned int max_align)
{
case NOP_EXPR:
case CONVERT_EXPR:
case NON_LVALUE_EXPR:
exp = TREE_OPERAND (exp, 0);
if (! POINTER_TYPE_P (TREE_TYPE (exp)))
return align;
@ -1073,8 +1072,7 @@ get_memory_rtx (tree exp, tree len)
/* Get an expression we can use to find the attributes to assign to MEM.
If it is an ADDR_EXPR, use the operand. Otherwise, dereference it if
we can. First remove any nops. */
while ((TREE_CODE (exp) == NOP_EXPR || TREE_CODE (exp) == CONVERT_EXPR
|| TREE_CODE (exp) == NON_LVALUE_EXPR)
while ((TREE_CODE (exp) == NOP_EXPR || TREE_CODE (exp) == CONVERT_EXPR)
&& POINTER_TYPE_P (TREE_TYPE (TREE_OPERAND (exp, 0))))
exp = TREE_OPERAND (exp, 0);
@ -1106,7 +1104,6 @@ get_memory_rtx (tree exp, tree len)
while (TREE_CODE (inner) == ARRAY_REF
|| TREE_CODE (inner) == NOP_EXPR
|| TREE_CODE (inner) == CONVERT_EXPR
|| TREE_CODE (inner) == NON_LVALUE_EXPR
|| TREE_CODE (inner) == VIEW_CONVERT_EXPR
|| TREE_CODE (inner) == SAVE_EXPR)
inner = TREE_OPERAND (inner, 0);
@ -7265,7 +7262,6 @@ integer_valued_real_p (tree t)
case ABS_EXPR:
case SAVE_EXPR:
case NON_LVALUE_EXPR:
return integer_valued_real_p (TREE_OPERAND (t, 0));
case COMPOUND_EXPR:
@ -11435,7 +11431,6 @@ fold_builtin_next_arg (tree exp, bool va_start_p)
parameters. */
while (TREE_CODE (arg) == NOP_EXPR
|| TREE_CODE (arg) == CONVERT_EXPR
|| TREE_CODE (arg) == NON_LVALUE_EXPR
|| TREE_CODE (arg) == INDIRECT_REF)
arg = TREE_OPERAND (arg, 0);
if (arg != last_parm)

3
gcc/dojump.c
View File

@ -219,8 +219,7 @@ do_jump (tree exp, rtx if_false_label, rtx if_true_label)
/* Strip narrowing integral type conversions. */
while ((TREE_CODE (exp0) == NOP_EXPR
|| TREE_CODE (exp0) == CONVERT_EXPR
|| TREE_CODE (exp0) == NON_LVALUE_EXPR)
|| TREE_CODE (exp0) == CONVERT_EXPR)
&& TREE_OPERAND (exp0, 0) != error_mark_node
&& TYPE_PRECISION (TREE_TYPE (exp0))
<= TYPE_PRECISION (TREE_TYPE (TREE_OPERAND (exp0, 0))))

2
gcc/dwarf2out.c
View File

@ -9583,7 +9583,6 @@ loc_descriptor_from_tree_1 (tree loc, int want_address)
case NOP_EXPR:
case CONVERT_EXPR:
case NON_LVALUE_EXPR:
case VIEW_CONVERT_EXPR:
case SAVE_EXPR:
case GIMPLE_MODIFY_STMT:
@ -11212,7 +11211,6 @@ add_bound_info (dw_die_ref subrange_die, enum dwarf_attribute bound_attr, tree b
case CONVERT_EXPR:
case NOP_EXPR:
case NON_LVALUE_EXPR:
case VIEW_CONVERT_EXPR:
add_bound_info (subrange_die, bound_attr, TREE_OPERAND (bound, 0));
break;

2
gcc/emit-rtl.c
View File

@ -1432,7 +1432,6 @@ component_ref_for_mem_expr (tree ref)
/* Now remove any conversions: they don't change what the underlying
object is. Likewise for SAVE_EXPR. */
while (TREE_CODE (inner) == NOP_EXPR || TREE_CODE (inner) == CONVERT_EXPR
|| TREE_CODE (inner) == NON_LVALUE_EXPR
|| TREE_CODE (inner) == VIEW_CONVERT_EXPR
|| TREE_CODE (inner) == SAVE_EXPR)
inner = TREE_OPERAND (inner, 0);
@ -1563,7 +1562,6 @@ set_mem_attributes_minus_bitpos (rtx ref, tree t, int objectp,
/* Now remove any conversions: they don't change what the underlying
object is. Likewise for SAVE_EXPR. */
while (TREE_CODE (t) == NOP_EXPR || TREE_CODE (t) == CONVERT_EXPR
|| TREE_CODE (t) == NON_LVALUE_EXPR
|| TREE_CODE (t) == VIEW_CONVERT_EXPR
|| TREE_CODE (t) == SAVE_EXPR)
t = TREE_OPERAND (t, 0);

17
gcc/expr.c
View File

@ -6599,7 +6599,7 @@ highest_pow2_factor (const_tree exp)
}
break;
case NON_LVALUE_EXPR: case NOP_EXPR: case CONVERT_EXPR:
case NOP_EXPR: case CONVERT_EXPR:
case SAVE_EXPR:
return highest_pow2_factor (TREE_OPERAND (exp, 0));
@ -7121,9 +7121,8 @@ expand_expr_real_1 (tree exp, rtx target, enum machine_mode tmode,
}
ignore = (target == const0_rtx
|| ((code == NON_LVALUE_EXPR || code == NOP_EXPR
|| code == CONVERT_EXPR || code == COND_EXPR
|| code == VIEW_CONVERT_EXPR)
|| ((code == NOP_EXPR || code == CONVERT_EXPR
|| code == COND_EXPR || code == VIEW_CONVERT_EXPR)
&& TREE_CODE (type) == VOID_TYPE));
/* An operation in what may be a bit-field type needs the
@ -8018,7 +8017,6 @@ expand_expr_real_1 (tree exp, rtx target, enum machine_mode tmode,
return expand_call (exp, target, ignore);
case PAREN_EXPR:
case NON_LVALUE_EXPR:
case NOP_EXPR:
case CONVERT_EXPR:
if (TREE_OPERAND (exp, 0) == error_mark_node)
@ -9411,8 +9409,7 @@ static int
is_aligning_offset (const_tree offset, const_tree exp)
{
/* Strip off any conversions. */
while (TREE_CODE (offset) == NON_LVALUE_EXPR
|| TREE_CODE (offset) == NOP_EXPR
while (TREE_CODE (offset) == NOP_EXPR
|| TREE_CODE (offset) == CONVERT_EXPR)
offset = TREE_OPERAND (offset, 0);
@ -9428,8 +9425,7 @@ is_aligning_offset (const_tree offset, const_tree exp)
/* Look at the first operand of BIT_AND_EXPR and strip any conversion.
It must be NEGATE_EXPR. Then strip any more conversions. */
offset = TREE_OPERAND (offset, 0);
while (TREE_CODE (offset) == NON_LVALUE_EXPR
|| TREE_CODE (offset) == NOP_EXPR
while (TREE_CODE (offset) == NOP_EXPR
|| TREE_CODE (offset) == CONVERT_EXPR)
offset = TREE_OPERAND (offset, 0);
@ -9437,8 +9433,7 @@ is_aligning_offset (const_tree offset, const_tree exp)
return 0;
offset = TREE_OPERAND (offset, 0);
while (TREE_CODE (offset) == NON_LVALUE_EXPR
|| TREE_CODE (offset) == NOP_EXPR
while (TREE_CODE (offset) == NOP_EXPR
|| TREE_CODE (offset) == CONVERT_EXPR)
offset = TREE_OPERAND (offset, 0);

4
gcc/tree-cfg.c
View File

@ -3254,6 +3254,9 @@ verify_expr (tree *tp, int *walk_subtrees, void *data ATTRIBUTE_UNUSED)
}
break;
case NON_LVALUE_EXPR:
gcc_unreachable ();
case NOP_EXPR:
case CONVERT_EXPR:
case FIX_TRUNC_EXPR:
@ -3261,7 +3264,6 @@ verify_expr (tree *tp, int *walk_subtrees, void *data ATTRIBUTE_UNUSED)
case NEGATE_EXPR:
case ABS_EXPR:
case BIT_NOT_EXPR:
case NON_LVALUE_EXPR:
case TRUTH_NOT_EXPR:
CHECK_OP (0, "invalid operand to unary operator");
break;

1
gcc/tree-inline.c
View File

@ -2233,7 +2233,6 @@ estimate_num_insns_1 (tree *tp, int *walk_subtrees, void *data)
case EH_FILTER_EXPR:
case STATEMENT_LIST:
case ERROR_MARK:
case NON_LVALUE_EXPR:
case FDESC_EXPR:
case VA_ARG_EXPR:
case TRY_CATCH_EXPR:

1
gcc/tree-scalar-evolution.c
View File

@ -2117,7 +2117,6 @@ instantiate_parameters_1 (struct loop *loop, tree chrec, int flags, htab_t cache
case NOP_EXPR:
case CONVERT_EXPR:
case NON_LVALUE_EXPR:
op0 = instantiate_parameters_1 (loop, TREE_OPERAND (chrec, 0),
flags, cache, size_expr);
if (op0 == chrec_dont_know)

1
gcc/tree-ssa-loop-ivopts.c
View File

@ -1541,7 +1541,6 @@ may_be_nonaddressable_p (tree expr)
return may_be_nonaddressable_p (TREE_OPERAND (expr, 0));
case CONVERT_EXPR:
case NON_LVALUE_EXPR:
case NOP_EXPR:
return true;

1
gcc/tree-ssa-structalias.c
View File

@ -2913,7 +2913,6 @@ get_constraint_for (tree t, VEC (ce_s, heap) **results)
{
case NOP_EXPR:
case CONVERT_EXPR:
case NON_LVALUE_EXPR:
{
tree op = TREE_OPERAND (t, 0);

3
gcc/tree-ssa-threadedge.c
View File

@ -429,8 +429,7 @@ simplify_control_stmt_condition (edge e,
cached_lhs = fold (COND_EXPR_COND (dummy_cond));
while (TREE_CODE (cached_lhs) == NOP_EXPR
|| TREE_CODE (cached_lhs) == CONVERT_EXPR
|| TREE_CODE (cached_lhs) == NON_LVALUE_EXPR)
|| TREE_CODE (cached_lhs) == CONVERT_EXPR)
cached_lhs = TREE_OPERAND (cached_lhs, 0);
fold_undefer_overflow_warnings (is_gimple_min_invariant (cached_lhs),

4
gcc/tree-vrp.c
View File

@ -2292,7 +2292,6 @@ extract_range_from_unary_expr (value_range_t *vr, enum tree_code code,
if (code == FIX_TRUNC_EXPR
|| code == FLOAT_EXPR
|| code == BIT_NOT_EXPR
|| code == NON_LVALUE_EXPR
|| code == CONJ_EXPR)
{
set_value_range_to_varying (vr);
@ -3957,8 +3956,7 @@ register_edge_assert_for_1 (tree op, enum tree_code code,
retval |= register_edge_assert_for_1 (rhs, code, e, bsi);
}
else if (TREE_CODE (rhs) == NOP_EXPR
|| TREE_CODE (rhs) == CONVERT_EXPR
|| TREE_CODE (rhs) == NON_LVALUE_EXPR)
|| TREE_CODE (rhs) == CONVERT_EXPR)
{
/* Recurse through the type conversion. */
retval |= register_edge_assert_for_1 (TREE_OPERAND (rhs, 0),

5
gcc/varasm.c
View File

@ -2815,7 +2815,6 @@ const_hash_1 (const tree exp)
case NOP_EXPR:
case CONVERT_EXPR:
case NON_LVALUE_EXPR:
return const_hash_1 (TREE_OPERAND (exp, 0)) * 7 + 2;
default:
@ -2970,7 +2969,6 @@ compare_constant (const tree t1, const tree t2)
case NOP_EXPR:
case CONVERT_EXPR:
case NON_LVALUE_EXPR:
case VIEW_CONVERT_EXPR:
return compare_constant (TREE_OPERAND (t1, 0), TREE_OPERAND (t2, 0));
@ -3018,7 +3016,6 @@ copy_constant (tree exp)
case NOP_EXPR:
case CONVERT_EXPR:
case NON_LVALUE_EXPR:
case VIEW_CONVERT_EXPR:
return build1 (TREE_CODE (exp), TREE_TYPE (exp),
copy_constant (TREE_OPERAND (exp, 0)));
@ -3917,7 +3914,6 @@ compute_reloc_for_constant (tree exp)
case NOP_EXPR:
case CONVERT_EXPR:
case NON_LVALUE_EXPR:
case VIEW_CONVERT_EXPR:
reloc = compute_reloc_for_constant (TREE_OPERAND (exp, 0));
break;
@ -3973,7 +3969,6 @@ output_addressed_constants (tree exp)
case NOP_EXPR:
case CONVERT_EXPR:
case NON_LVALUE_EXPR:
case VIEW_CONVERT_EXPR:
output_addressed_constants (TREE_OPERAND (exp, 0));
break;