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-rw-r--r--gcc/ChangeLog5
-rw-r--r--gcc/c-semantics.c19
2 files changed, 11 insertions, 13 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index c183d6f..3a776bc 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2005-04-24 Ian Lance Taylor <ian@airs.com>
+
+ * c-semantics.c (build_stmt): Remove test of specific tree codes
+ for TREE_SIDE_EFFECTS handling.
+
2005-04-24 Per Bothner <per@bothner.com>
* c-opts.c (finish_options): Make the line-number of the <built-in>
diff --git a/gcc/c-semantics.c b/gcc/c-semantics.c
index 567a440..fe81249 100644
--- a/gcc/c-semantics.c
+++ b/gcc/c-semantics.c
@@ -149,19 +149,12 @@ build_stmt (enum tree_code code, ...)
length = TREE_CODE_LENGTH (code);
SET_EXPR_LOCATION (ret, input_location);
- /* Most statements have implicit side effects all on their own,
- such as control transfer. For those that do, we'll compute
- the real value of TREE_SIDE_EFFECTS from its arguments. */
- switch (code)
- {
- case EXPR_STMT:
- side_effects = false;
- break;
- default:
- side_effects = true;
- break;
- }
+ /* TREE_SIDE_EFFECTS will already be set for statements with
+ implicit side effects. Here we make sure it is set for other
+ expressions by checking whether the parameters have side
+ effects. */
+ side_effects = false;
for (i = 0; i < length; i++)
{
tree t = va_arg (p, tree);
@@ -170,7 +163,7 @@ build_stmt (enum tree_code code, ...)
TREE_OPERAND (ret, i) = t;
}
- TREE_SIDE_EFFECTS (ret) = side_effects;
+ TREE_SIDE_EFFECTS (ret) |= side_effects;
va_end (p);
return ret;