diff options
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/tree-tailcall.c | 8 |
2 files changed, 12 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index a75204c..c4790d2 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2012-02-16 Jakub Jelinek <jakub@redhat.com> + + PR tree-optimization/52285 + * tree-tailcall.c (find_tail_calls): Ignore gimple_clobber_p stmts + when deciding if a call is a tail call or tail recursion. + 2012-02-16 Kai Tietz <ktietz@redhat.com> * config/i386/i386.c (legitimate_pic_address_disp_p): Allow diff --git a/gcc/tree-tailcall.c b/gcc/tree-tailcall.c index 87fc566..02e1113 100644 --- a/gcc/tree-tailcall.c +++ b/gcc/tree-tailcall.c @@ -1,5 +1,5 @@ /* Tail call optimization on trees. - Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 + Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc. This file is part of GCC. @@ -400,9 +400,10 @@ find_tail_calls (basic_block bb, struct tailcall **ret) { stmt = gsi_stmt (gsi); - /* Ignore labels, returns and debug stmts. */ + /* Ignore labels, returns, clobbers and debug stmts. */ if (gimple_code (stmt) == GIMPLE_LABEL || gimple_code (stmt) == GIMPLE_RETURN + || gimple_clobber_p (stmt) || is_gimple_debug (stmt)) continue; @@ -523,6 +524,9 @@ find_tail_calls (basic_block bb, struct tailcall **ret) if (gimple_code (stmt) == GIMPLE_RETURN) break; + if (gimple_clobber_p (stmt)) + continue; + if (is_gimple_debug (stmt)) continue; |