diff options
| author | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2011-01-21 12:57:52 +0000 |
|---|---|---|
| committer | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2011-01-21 12:57:52 +0000 |
| commit | 2fbbab300950166a673ba7940debf16e667b32bc (patch) | |
| tree | fb3ae648632a5de0ac53fcf258d6bd168323da84 /gcc/varpool.c | |
| parent | 2d8c17866537259badc289fb3a12ba1377a46e47 (diff) | |
| download | gcc-2fbbab300950166a673ba7940debf16e667b32bc.tar.gz | |
PR tree-optimization/47391
* varpool.c (const_value_known_p): Return false if
decl is volatile.
* gcc.dg/pr47391.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@169084 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/varpool.c')
| -rw-r--r-- | gcc/varpool.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/gcc/varpool.c b/gcc/varpool.c index d266ce9a8cf..2e37255636c 100644 --- a/gcc/varpool.c +++ b/gcc/varpool.c @@ -1,5 +1,5 @@ /* Callgraph handling code. - Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2010 + Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2010, 2011 Free Software Foundation, Inc. Contributed by Jan Hubicka @@ -370,7 +370,7 @@ const_value_known_p (tree decl) gcc_assert (TREE_CODE (decl) == VAR_DECL); - if (!TREE_READONLY (decl)) + if (!TREE_READONLY (decl) || TREE_THIS_VOLATILE (decl)) return false; /* Gimplifier takes away constructors of local vars */ |