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(-) diff --git a/gcc/tree-ssa-threadbackward.c b/gcc/tree-ssa-threadbackward.c index 496b68e0a82..1999ccf4834 100644 --- a/gcc/tree-ssa-threadbackward.c +++ b/gcc/tree-ssa-threadbackward.c @@ -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 -- 2.31.1