Diego asked me what this flag was for; I looked, and found it to be a
write-only flag. So out it goes.
Tested x86_64-pc-linux-gnu, applied to trunk.
commit 59817b6e5fa3fafbce5fa2b1a111b2aa37eea091
Author: Jason Merrill <ja...@redhat.com>
Date: Tue Sep 27 10:45:07 2011 -0400
* cp-tree.h (TREE_NEGATED_INT): Remove.
* semantics.c (finish_unary_op_expr): Don't set it.
diff --git a/gcc/c-family/c-common.h b/gcc/c-family/c-common.h
index 7241d66..a1f7ebe 100644
--- a/gcc/c-family/c-common.h
+++ b/gcc/c-family/c-common.h
@@ -43,8 +43,7 @@ never after.
#include "diagnostic-core.h"
/* Usage of TREE_LANG_FLAG_?:
- 0: TREE_NEGATED_INT (in INTEGER_CST).
- IDENTIFIER_MARKED (used by search routines).
+ 0: IDENTIFIER_MARKED (used by search routines).
DECL_PRETTY_FUNCTION_P (in VAR_DECL)
C_MAYBE_CONST_EXPR_INT_OPERANDS (in C_MAYBE_CONST_EXPR, for C)
1: C_DECLARED_LABEL_FLAG (in LABEL_DECL)
diff --git a/gcc/cp/cp-tree.h b/gcc/cp/cp-tree.h
index 0f7deb6..7e5aac7 100644
--- a/gcc/cp/cp-tree.h
+++ b/gcc/cp/cp-tree.h
@@ -2989,10 +2989,6 @@ more_aggr_init_expr_args_p (const aggr_init_expr_arg_iterator *iter)
#define TYPENAME_IS_RESOLVING_P(NODE) \
(TREE_LANG_FLAG_2 (TYPENAME_TYPE_CHECK (NODE)))
-/* Nonzero in INTEGER_CST means that this int is negative by dint of
- using a twos-complement negated operand. */
-#define TREE_NEGATED_INT(NODE) TREE_LANG_FLAG_0 (INTEGER_CST_CHECK (NODE))
-
/* [class.virtual]
A class that declares or inherits a virtual function is called a
diff --git a/gcc/cp/semantics.c b/gcc/cp/semantics.c
index 89c76d5..7ad1e8d 100644
--- a/gcc/cp/semantics.c
+++ b/gcc/cp/semantics.c
@@ -2312,19 +2312,6 @@ tree
finish_unary_op_expr (enum tree_code code, tree expr)
{
tree result = build_x_unary_op (code, expr, tf_warning_or_error);
- /* Inside a template, build_x_unary_op does not fold the
- expression. So check whether the result is folded before
- setting TREE_NEGATED_INT. */
- if (code == NEGATE_EXPR && TREE_CODE (expr) == INTEGER_CST
- && TREE_CODE (result) == INTEGER_CST
- && !TYPE_UNSIGNED (TREE_TYPE (result))
- && INT_CST_LT (result, integer_zero_node))
- {
- /* RESULT may be a cached INTEGER_CST, so we must copy it before
- setting TREE_NEGATED_INT. */
- result = copy_node (result);
- TREE_NEGATED_INT (result) = 1;
- }
if (TREE_OVERFLOW_P (result) && !TREE_OVERFLOW_P (expr))
overflow_warning (input_location, result);
