From d50c928e67d2bd64e040ecd7f477d98ac292aaa2 Mon Sep 17 00:00:00 2001
From: kazu <kazu@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Tue, 23 Nov 2004 22:38:07 +0000
Subject: [PATCH] * tree-cfg.c (tree_forwarder_block_p): Speed up by
reordering two checks.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@91108 138bc75d-0d04-0410-961f-82ee72b054a4
---
gcc/ChangeLog | 5 +++++
gcc/tree-cfg.c | 6 +++---
2 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index dbc9d4cc9e99..a16e9b6f0418 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2004-11-23 Kazu Hirata <kazu@cs.umass.edu>
+
+ * tree-cfg.c (tree_forwarder_block_p): Speed up by reordering
+ two checks.
+
2004-11-23 Zack Weinberg <zack@codesourcery.com>
* function.h (struct function): Remove calls_longjmp.
diff --git a/gcc/tree-cfg.c b/gcc/tree-cfg.c
index bcd025f717d7..aa4ba4664df2 100644
--- a/gcc/tree-cfg.c
+++ b/gcc/tree-cfg.c
@@ -3907,9 +3907,6 @@ tree_forwarder_block_p (basic_block bb)
gcc_assert (bb != ENTRY_BLOCK_PTR);
#endif
- if (find_edge (ENTRY_BLOCK_PTR, bb))
- return false;
-
/* Now walk through the statements. We can ignore labels, anything else
means this is not a forwarder block. */
for (bsi = bsi_start (bb); !bsi_end_p (bsi); bsi_next (&bsi))
@@ -3928,6 +3925,9 @@ tree_forwarder_block_p (basic_block bb)
}
}
+ if (find_edge (ENTRY_BLOCK_PTR, bb))
+ return false;
+
return true;
}
--
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