diff options
| author | H.J. Lu <hongjiu.lu@intel.com> | 2008-05-10 00:41:39 +0000 |
|---|---|---|
| committer | H.J. Lu <hjl@gcc.gnu.org> | 2008-05-09 17:41:39 -0700 |
| commit | 17b29c0a1700733775c8190c57117fe3bbbd91cf (patch) | |
| tree | 735fd06cfce1ffc7f37782aff0f57f0032845332 /gcc/calls.c | |
| parent | b0d2eb9a1a64313dd406ce1fe949be18b8e0f100 (diff) | |
| download | gcc-17b29c0a1700733775c8190c57117fe3bbbd91cf.zip gcc-17b29c0a1700733775c8190c57117fe3bbbd91cf.tar.gz gcc-17b29c0a1700733775c8190c57117fe3bbbd91cf.tar.bz2 | |
calls.c (expand_call): Don't use callgraph to increase preferred_stack_boundary.
2008-05-09 H.J. Lu <hongjiu.lu@intel.com>
* calls.c (expand_call): Don't use callgraph to increase
preferred_stack_boundary.
* cgraph.h (cgraph_rtl_info): Use unsigned on
preferred_incoming_stack_boundary.
* final.c (rest_of_clean_state): Use unsigned on
preferred_stack_boundary.
From-SVN: r135134
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; } |