diff options
Diffstat (limited to 'src/mesa/drivers')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_fs_saturate_propagation.cpp | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs_saturate_propagation.cpp b/src/mesa/drivers/dri/i965/brw_fs_saturate_propagation.cpp index a4145ac27d9..a9966a4d648 100644 --- a/src/mesa/drivers/dri/i965/brw_fs_saturate_propagation.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs_saturate_propagation.cpp @@ -26,6 +26,20 @@ #include "brw_cfg.h" /** @file brw_fs_saturate_propagation.cpp + * + * Implements a pass that propagates the SAT modifier from a MOV.SAT into the + * instruction that produced the source of the MOV.SAT, thereby allowing the + * MOV's src and dst to be coalesced and the MOV removed. + * + * For instance, + * + * ADD tmp, src0, src1 + * MOV.SAT dst, tmp + * + * would be transformed into + * + * ADD.SAT tmp, src0, src1 + * MOV dst, tmp */ static bool |