diff options
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_fs.cpp')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_fs.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp index 5c44007..b60ec71 100644 --- a/src/mesa/drivers/dri/i965/brw_fs.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs.cpp @@ -2835,6 +2835,14 @@ fs_visitor::eliminate_find_live_channel() bool progress = false; unsigned depth = 0; + if (!brw_stage_has_packed_dispatch(devinfo, stage, stage_prog_data)) { + /* The optimization below assumes that channel zero is live on thread + * dispatch, which may not be the case if the fixed function dispatches + * threads sparsely. + */ + return false; + } + foreach_block_and_inst_safe(block, fs_inst, inst, cfg) { switch (inst->opcode) { case BRW_OPCODE_IF: |