diff options
| -rw-r--r-- | src/intel/compiler/brw_fs.cpp | 46 | ||||
| -rw-r--r-- | src/intel/compiler/brw_fs.h | 1 |
2 files changed, 47 insertions, 0 deletions
diff --git a/src/intel/compiler/brw_fs.cpp b/src/intel/compiler/brw_fs.cpp index 8d72eb8837d..22eefd4ef49 100644 --- a/src/intel/compiler/brw_fs.cpp +++ b/src/intel/compiler/brw_fs.cpp @@ -3877,6 +3877,47 @@ fs_visitor::lower_load_payload() } bool +fs_visitor::lower_linterp() +{ + bool progress = false; + + if (devinfo->gen < 11) + return false; + + foreach_block_and_inst_safe(block, fs_inst, inst, cfg) { + const fs_builder ibld(this, block, inst); + + if (inst->opcode != FS_OPCODE_LINTERP) + continue; + + fs_reg dwP = component(inst->src[1], 0); + fs_reg dwQ = component(inst->src[1], 1); + fs_reg dwR = component(inst->src[1], 3); + for (unsigned i = 0; i < DIV_ROUND_UP(dispatch_width, 8); i++) { + const fs_builder hbld(ibld.half(i)); + fs_reg dst = half(inst->dst, i); + fs_reg delta_xy = offset(inst->src[0], ibld, i); + hbld.MAD(dst, dwR, half(delta_xy, 0), dwP); + fs_inst *mad = hbld.MAD(dst, dst, half(delta_xy, 1), dwQ); + + /* Propagate conditional mod and saturate from the original + * instruction to the second MAD instruction. + */ + set_saturate(inst->saturate, mad); + set_condmod(inst->conditional_mod, mad); + } + + inst->remove(block); + progress = true; + } + + if (progress) + invalidate_live_intervals(); + + return progress; +} + +bool fs_visitor::lower_integer_multiplication() { bool progress = false; @@ -7070,6 +7111,11 @@ fs_visitor::optimize() OPT(compact_virtual_grfs); } while (progress); + if (OPT(lower_linterp)) { + OPT(opt_copy_propagation); + OPT(dead_code_eliminate); + } + /* Do this after cmod propagation has had every possible opportunity to * propagate results into SEL instructions. */ diff --git a/src/intel/compiler/brw_fs.h b/src/intel/compiler/brw_fs.h index e8af99e1705..f05a9e0625a 100644 --- a/src/intel/compiler/brw_fs.h +++ b/src/intel/compiler/brw_fs.h @@ -167,6 +167,7 @@ public: bool lower_pack(); bool lower_regioning(); bool lower_logical_sends(); + bool lower_linterp(); bool lower_integer_multiplication(); bool lower_minmax(); bool lower_simd_width(); |