As discussed in the PR, tailcall settings have to be cleared by
the inliner.
Bootstrapped and tested on x86_64-unknown-linux-gnu, applied to trunk
and 4.9 branch.
Richard.
2014-05-13 Richard Biener <rguent...@suse.de>
PR ipa/60973
* tree-inline.c (remap_gimple_stmt): Clear tail call flag,
it needs revisiting whether the call still may be tail-called.
Index: gcc/tree-inline.c
===================================================================
--- gcc/tree-inline.c (revision 210263)
+++ gcc/tree-inline.c (working copy)
@@ -1483,6 +1487,11 @@ remap_gimple_stmt (gimple stmt, copy_bod
/* Create a new deep copy of the statement. */
copy = gimple_copy (stmt);
+ /* Clear flags that need revisiting. */
+ if (is_gimple_call (copy)
+ && gimple_call_tail_p (copy))
+ gimple_call_set_tail (copy, false);
+
/* Remap the region numbers for __builtin_eh_{pointer,filter},
RESX and EH_DISPATCH. */
if (id->eh_map)
