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| author | krebbel <krebbel@138bc75d-0d04-0410-961f-82ee72b054a4> | 2014-05-05 07:55:26 +0000 |
|---|---|---|
| committer | krebbel <krebbel@138bc75d-0d04-0410-961f-82ee72b054a4> | 2014-05-05 07:55:26 +0000 |
| commit | 0ac109b5a135aeac95b2ad42e7fbbd241197a931 (patch) | |
| tree | 17925abdca6968e0293ace7cac7077c037baa800 /gcc/doc | |
| parent | 2f71f48ab6faa28e9ccd2aa93562490567c97645 (diff) | |
| download | gcc-0ac109b5a135aeac95b2ad42e7fbbd241197a931.tar.gz | |
2014-05-05 Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
* target.def: Add new target hook.
* doc/tm.texi: Regenerate.
* targhooks.h (default_keep_leaf_when_profiled): Add prototype.
* targhooks.c (default_keep_leaf_when_profiled): New function.
* config/s390/s390.c (s390_keep_leaf_when_profiled): New function.
(TARGET_KEEP_LEAF_WHEN_PROFILED): Define.
2014-05-05 Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
* gcc.target/s390/leaf-profile.c: New testcase.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@210061 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/tm.texi | 4 | ||||
| -rw-r--r-- | gcc/doc/tm.texi.in | 2 |
2 files changed, 6 insertions, 0 deletions
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index ed35bcb2351..cdc272e0254 100644 --- a/gcc/doc/tm.texi +++ b/gcc/doc/tm.texi @@ -4953,6 +4953,10 @@ Define this macro if the code for function profiling should come before the function prologue. Normally, the profiling code comes after. @end defmac +@deftypefn {Target Hook} bool TARGET_KEEP_LEAF_WHEN_PROFILED (void) +This target hook returns true if the target wants the leaf flag for the current function to stay true even if it calls mcount. This might make sense for targets using the leaf flag only to determine whether a stack frame needs to be generated or not and for which the call to mcount is generated before the function prologue. +@end deftypefn + @node Tail Calls @subsection Permitting tail calls @cindex tail calls diff --git a/gcc/doc/tm.texi.in b/gcc/doc/tm.texi.in index a5c37417927..efd49639848 100644 --- a/gcc/doc/tm.texi.in +++ b/gcc/doc/tm.texi.in @@ -3963,6 +3963,8 @@ Define this macro if the code for function profiling should come before the function prologue. Normally, the profiling code comes after. @end defmac +@hook TARGET_KEEP_LEAF_WHEN_PROFILED + @node Tail Calls @subsection Permitting tail calls @cindex tail calls |