From 30a873c3f3697132e95b32ba1cf261e93f27045b Mon Sep 17 00:00:00 2001 From: Zdenek Dvorak Date: Fri, 20 Jul 2007 03:32:47 +0200 Subject: function.c (thread_prologue_and_epilogue_insns): Fix exit predecessor fallthru flags. * function.c (thread_prologue_and_epilogue_insns): Fix exit predecessor fallthru flags. From-SVN: r126797 --- gcc/function.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) (limited to 'gcc/function.c') diff --git a/gcc/function.c b/gcc/function.c index c69e18b..68a3f7e 100644 --- a/gcc/function.c +++ b/gcc/function.c @@ -5256,7 +5256,18 @@ thread_prologue_and_epilogue_insns (void) epilogue_done: if (inserted) - commit_edge_insertions (); + { + commit_edge_insertions (); + + /* The epilogue insns we inserted may cause the exit edge to no longer + be fallthru. */ + FOR_EACH_EDGE (e, ei, EXIT_BLOCK_PTR->preds) + { + if (((e->flags & EDGE_FALLTHRU) != 0) + && returnjump_p (BB_END (e->src))) + e->flags &= ~EDGE_FALLTHRU; + } + } #ifdef HAVE_sibcall_epilogue /* Emit sibling epilogues before any sibling call sites. */ -- cgit v1.1