diff options
Diffstat (limited to 'src/intel/compiler/brw_fs_scoreboard.cpp')
| -rw-r--r-- | src/intel/compiler/brw_fs_scoreboard.cpp | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/src/intel/compiler/brw_fs_scoreboard.cpp b/src/intel/compiler/brw_fs_scoreboard.cpp index 8702e12e516..4176f54c908 100644 --- a/src/intel/compiler/brw_fs_scoreboard.cpp +++ b/src/intel/compiler/brw_fs_scoreboard.cpp @@ -579,11 +579,16 @@ namespace { /** * Return simplified dependency removing any synchronization modes not * applicable to an instruction \p inst writing the same register location. + * + * This clears any WaR dependency for writes performed from the same + * pipeline as the read, since there is no possibility for a data hazard. */ dependency - dependency_for_write(const fs_inst *inst, dependency dep) + dependency_for_write(const struct intel_device_info *devinfo, + const fs_inst *inst, dependency dep) { - if (!is_unordered(inst)) + if (!is_unordered(inst) && + is_single_pipe(dep.jp, inferred_exec_pipe(devinfo, inst))) dep.ordered &= TGL_REGDIST_DST; return dep; } @@ -1124,7 +1129,7 @@ namespace { if (inst->dst.file != BAD_FILE && !inst->dst.is_null() && !inst->dst.is_accumulator()) { for (unsigned j = 0; j < regs_written(inst); j++) { - add_dependency(ids, deps[ip], dependency_for_write(inst, + add_dependency(ids, deps[ip], dependency_for_write(devinfo, inst, sb.get(byte_offset(inst->dst, REG_SIZE * j)))); } } @@ -1144,7 +1149,7 @@ namespace { if (is_send(inst) && inst->base_mrf != -1) { for (unsigned j = 0; j < inst->implied_mrf_writes(); j++) - add_dependency(ids, deps[ip], dependency_for_write(inst, + add_dependency(ids, deps[ip], dependency_for_write(devinfo, inst, sb.get(brw_uvec_mrf(8, inst->base_mrf + j, 0)))); } } |