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| author | Matt Turner <mattst88@gmail.com> | 2014-09-08 12:05:25 -0700 |
|---|---|---|
| committer | Matt Turner <mattst88@gmail.com> | 2014-09-27 12:18:37 -0700 |
| commit | 82bdb559a160129774d2e2f235cb2b18c907d713 (patch) | |
| tree | 567882fd66efa3a1c18116fcfa256d6dc9c9802f /src/mesa/drivers/dri/i965/brw_fs_saturate_propagation.cpp | |
| parent | ed48f91275f52f26b513fc2970233063bfa023af (diff) | |
| download | external_mesa3d-82bdb559a160129774d2e2f235cb2b18c907d713.zip external_mesa3d-82bdb559a160129774d2e2f235cb2b18c907d713.tar.gz external_mesa3d-82bdb559a160129774d2e2f235cb2b18c907d713.tar.bz2 | |
i965/fs: Walk instructions in reverse in saturate propagation.
When we find a mov.sat, we search backwards. We might as well search
everything else backwards as well and potentially look at fewer
instructions.
This change enables the next patch.
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_fs_saturate_propagation.cpp')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_fs_saturate_propagation.cpp | 6 |
1 files changed, 3 insertions, 3 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 4c4b6bf..6f8f8d0 100644 --- a/src/mesa/drivers/dri/i965/brw_fs_saturate_propagation.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs_saturate_propagation.cpp @@ -32,10 +32,10 @@ static bool opt_saturate_propagation_local(fs_visitor *v, bblock_t *block) { bool progress = false; - int ip = block->start_ip - 1; + int ip = block->end_ip + 1; - foreach_inst_in_block(fs_inst, inst, block) { - ip++; + foreach_inst_in_block_reverse(fs_inst, inst, block) { + ip--; if (inst->opcode != BRW_OPCODE_MOV || inst->dst.file != GRF || |