diff options
Diffstat (limited to 'gcc/calls.c')
| -rw-r--r-- | gcc/calls.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/gcc/calls.c b/gcc/calls.c index bbb9b76..ac83982 100644 --- a/gcc/calls.c +++ b/gcc/calls.c @@ -2109,7 +2109,14 @@ expand_call (tree exp, rtx target, int ignore) if (fndecl) { struct cgraph_rtl_info *i = cgraph_rtl_info (fndecl); - if (i && i->preferred_incoming_stack_boundary) + /* Without automatic stack alignment, we can't increase preferred + stack boundary. With automatic stack alignment, it is + unnecessary since unless we can guarantee that all callers will + align the outgoing stack properly, callee has to align its + stack anyway. */ + if (i + && i->preferred_incoming_stack_boundary + && i->preferred_incoming_stack_boundary < preferred_stack_boundary) preferred_stack_boundary = i->preferred_incoming_stack_boundary; } |