Minor cleanups to backward threader.
Commit Message
I will commit this as obvious pending tests on x86-64 Linux.
gcc/ChangeLog:
* tree-ssa-threadbackward.c (class back_threader): Make m_imports
an auto_bitmap.
(back_threader::~back_threader): Do not release m_path.
---
gcc/tree-ssa-threadbackward.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
@@ -105,7 +105,7 @@ private:
hash_set<basic_block> m_visited_bbs;
// The set of SSA names, any of which could potentially change the
// value of the final conditional in a path.
- bitmap m_imports;
+ auto_bitmap m_imports;
// The last statement in the path.
gimple *m_last_stmt;
// This is a bit of a wart. It's used to pass the LHS SSA name to
@@ -125,13 +125,10 @@ back_threader::back_threader (bool speed_p)
m_solver (m_ranger, /*resolve=*/false)
{
m_last_stmt = NULL;
- m_imports = BITMAP_ALLOC (NULL);
}
back_threader::~back_threader ()
{
- m_path.release ();
- BITMAP_FREE (m_imports);
}
// Register the current path for jump threading if it's profitable to