[committed] coroutines: Fix missing dereference (PR94319).

[Iain Sandoe]

Hi

This fixes a typo spotted by static analysis.
tested on x86_64-darwin, applied to master as obvious
thanks
Iain
   
    
gcc/cp/ChangeLog:
    
2020-03-25  Iain Sandoe  <i...@sandoe.co.uk>
    
        PR c++/94319
        * coroutines.cc (captures_temporary): Fix a missing dereference.

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 4332b07cc5f..d9f87eca649 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,8 @@
+2020-03-25  Iain Sandoe  <i...@sandoe.co.uk>
+
+       PR c++/94319
+       * coroutines.cc (captures_temporary): Fix a missing dereference.
+
 2020-03-24  Marek Polacek  <pola...@redhat.com>
 
        PR c++/94190 - wrong no post-decrement operator error in template.
diff --git a/gcc/cp/coroutines.cc b/gcc/cp/coroutines.cc
index a943ba01de6..ef1ce150680 100644
--- a/gcc/cp/coroutines.cc
+++ b/gcc/cp/coroutines.cc
@@ -2651,7 +2651,7 @@ captures_temporary (tree *stmt, int *do_subtree, void *d)
     }
   /* As far as it's necessary, we've walked the subtrees of the call
      expr.  */
-  do_subtree = 0;
+  *do_subtree = 0;
   return NULL_TREE;
 }