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| author | Jakub Jelinek <jakub@redhat.com> | 2011-01-25 20:50:56 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2011-01-25 20:50:56 +0100 |
| commit | 6bdfdb96eeec5da99a6aa4ca592af1d6b9cef237 (patch) | |
| tree | c3bf33476cd79def86c5357582c9dcc5d72f16bb /gcc/tree-ssa-forwprop.c | |
| parent | 6be7b6686fa5ad8be50dd578a05dfd0f6d478353 (diff) | |
| download | gcc-6bdfdb96eeec5da99a6aa4ca592af1d6b9cef237.zip gcc-6bdfdb96eeec5da99a6aa4ca592af1d6b9cef237.tar.gz gcc-6bdfdb96eeec5da99a6aa4ca592af1d6b9cef237.tar.bz2 | |
re PR tree-optimization/47265 (Error: SSA name in freelist but still referenced)
PR tree-optimization/47265
PR tree-optimization/47443
* tree-ssa-forwprop.c (forward_propagate_addr_expr): Return false
if name still has some uses.
* gcc.c-torture/compile/pr47265.c: New test.
* gcc.dg/pr47443.c: New test.
From-SVN: r169250
Diffstat (limited to 'gcc/tree-ssa-forwprop.c')
| -rw-r--r-- | gcc/tree-ssa-forwprop.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/gcc/tree-ssa-forwprop.c b/gcc/tree-ssa-forwprop.c index 64c8e88..ee12e40 100644 --- a/gcc/tree-ssa-forwprop.c +++ b/gcc/tree-ssa-forwprop.c @@ -1,5 +1,5 @@ /* Forward propagation of expressions for single use variables. - Copyright (C) 2004, 2005, 2007, 2008, 2009, 2010 + Copyright (C) 2004, 2005, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc. This file is part of GCC. @@ -1114,7 +1114,7 @@ forward_propagate_addr_expr (tree name, tree rhs) } } - return all; + return all && has_zero_uses (name); } /* Forward propagate the comparison defined in STMT like |