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-rw-r--r--gcc/ChangeLog6
-rw-r--r--gcc/expr.c3
2 files changed, 9 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 94860fa..b221b55 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2010-04-08 Jakub Jelinek <jakub@redhat.com>
+
+ PR bootstrap/43681
+ * expr.c (block_move_libcall_safe_for_call_parm): Avoid
+ set but not used variable warning.
+
2010-04-08 Wei Guozhi <carrot@google.com>
PR target/41653
diff --git a/gcc/expr.c b/gcc/expr.c
index 1f04ffb..f5de2ae 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -1262,6 +1262,9 @@ block_move_libcall_safe_for_call_parm (void)
an outgoing argument. */
#if defined (REG_PARM_STACK_SPACE)
fn = emit_block_move_libcall_fn (false);
+ /* Avoid set but not used warning if *REG_PARM_STACK_SPACE doesn't
+ depend on its argument. */
+ (void) fn;
if (OUTGOING_REG_PARM_STACK_SPACE ((!fn ? NULL_TREE : TREE_TYPE (fn)))
&& REG_PARM_STACK_SPACE (fn) != 0)
return false;