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Diffstat (limited to 'gcc/doc/tm.texi')
| -rw-r--r-- | gcc/doc/tm.texi | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index 109e403..7ff4537 100644 --- a/gcc/doc/tm.texi +++ b/gcc/doc/tm.texi @@ -7355,6 +7355,14 @@ the @code{POLY_VALUE_MIN}, @code{POLY_VALUE_MAX} and implementation returns the lowest possible value of @var{val}. @end deftypefn +@deftypefn {Target Hook} bool TARGET_AVOID_STORE_FORWARDING_P (vec<store_fwd_info>, @var{rtx}, @var{int}, @var{bool}) +Given a list of stores and a load instruction that reads from the location +of the stores, this hook decides if it's profitable to emit additional code +to avoid a potential store forwarding stall. The additional instructions +needed, the sequence cost and additional relevant information is given in +the arguments so that the target can make an informed decision. +@end deftypefn + @node Scheduling @section Adjusting the Instruction Scheduler |