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| author | Trevor Smigiel <Trevor_Smigiel@playstation.sony.com> | 2007-09-10 13:16:38 +0000 |
|---|---|---|
| committer | Revital Eres <revitale@gcc.gnu.org> | 2007-09-10 13:16:38 +0000 |
| commit | 67186a97fee72340e779378f7059d9b71d0f7912 (patch) | |
| tree | 6a134dc64a3873eb40dadbaa25d0e75243c9a879 /gcc/doc | |
| parent | 77340500f261c833adb77bc8ad37be5d5789310e (diff) | |
| download | gcc-67186a97fee72340e779378f7059d9b71d0f7912.zip gcc-67186a97fee72340e779378f7059d9b71d0f7912.tar.gz gcc-67186a97fee72340e779378f7059d9b71d0f7912.tar.bz2 | |
New target hook to calculate MII
Co-Authored-By: Revital Eres <eres@il.ibm.com>
From-SVN: r128343
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/tm.texi | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index 4f8c029..deb3abc 100644 --- a/gcc/doc/tm.texi +++ b/gcc/doc/tm.texi @@ -6342,6 +6342,15 @@ an additional structure @var{spec_info} should be filled by the target. The structure describes speculation types that can be used in the scheduler. @end deftypefn +@deftypefn {Target Hook} int TARGET_SCHED_SMS_RES_MII (struct ddg *@var{g}) +This hook is called by the swing modulo scheduler to calculate a +resource-based lower bound which is based on the resources available in +the machine and the resources required by each instruction. The target +backend can use @var{g} to calculate such bound. A very simple lower +bound will be used in case this hook is not implemented: the total number +of instructions divided by the issue rate. +@end deftypefn + @node Sections @section Dividing the Output into Sections (Texts, Data, @dots{}) @c the above section title is WAY too long. maybe cut the part between |