diff options
Diffstat (limited to 'gcc/tree-ssa-threadbackward.c')
| -rw-r--r-- | gcc/tree-ssa-threadbackward.c | 47 |
1 files changed, 22 insertions, 25 deletions
diff --git a/gcc/tree-ssa-threadbackward.c b/gcc/tree-ssa-threadbackward.c index 74b5f36..0f7b4a7 100644 --- a/gcc/tree-ssa-threadbackward.c +++ b/gcc/tree-ssa-threadbackward.c @@ -187,6 +187,18 @@ back_threader::debug_counter () return true; } +static void +dump_path (FILE *dump_file, const vec<basic_block> &path) +{ + for (unsigned i = path.length (); i > 0; --i) + { + basic_block bb = path[i - 1]; + fprintf (dump_file, "%d", bb->index); + if (i > 1) + fprintf (dump_file, "->"); + } +} + // Dump details of an attempt to register a path. void @@ -196,14 +208,7 @@ back_threader::maybe_register_path_dump (edge taken) return; fprintf (dump_file, "path: "); - - for (unsigned i = m_path.length (); i > 0; --i) - { - basic_block bb = m_path[i - 1]; - fprintf (dump_file, "%d", bb->index); - if (i > 1) - fprintf (dump_file, "->"); - } + dump_path (dump_file, m_path); fprintf (dump_file, "->"); if (taken == UNREACHABLE_EDGE) @@ -368,9 +373,14 @@ back_threader::resolve_phi (gphi *phi, bitmap interesting) if (!profitable_p) { if (dump_file && (dump_flags & TDF_DETAILS)) - fprintf (dump_file, - " FAIL: path through PHI in bb%d (incoming bb:%d) crosses loop\n", - e->dest->index, e->src->index); + { + fprintf (dump_file, + " FAIL: path through PHI in bb%d (incoming bb:%d) crosses loop\n", + e->dest->index, e->src->index); + fprintf (dump_file, "path: %d->", e->src->index); + dump_path (dump_file, m_path); + fprintf (dump_file, "->xx REJECTED\n"); + } continue; } @@ -558,24 +568,11 @@ back_threader::maybe_thread_block (basic_block bb) find_paths (bb, name); } -// Dump a sequence of BBs through the CFG. - -DEBUG_FUNCTION void -dump_path (FILE *dump_file, const vec<basic_block> &path) -{ - for (size_t i = 0; i < path.length (); ++i) - { - fprintf (dump_file, "BB%d", path[i]->index); - if (i + 1 < path.length ()) - fprintf (dump_file, " <- "); - } - fprintf (dump_file, "\n"); -} - DEBUG_FUNCTION void debug (const vec <basic_block> &path) { dump_path (stderr, path); + fputc ('\n', stderr); } void |