diff options
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_vec4.cpp | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_vec4.cpp b/src/mesa/drivers/dri/i965/brw_vec4.cpp index e0a3d5fa786..46aa7d5a8ae 100644 --- a/src/mesa/drivers/dri/i965/brw_vec4.cpp +++ b/src/mesa/drivers/dri/i965/brw_vec4.cpp @@ -731,6 +731,17 @@ vec4_visitor::opt_algebraic() progress = true; } break; + case SHADER_OPCODE_RCP: { + vec4_instruction *prev = (vec4_instruction *)inst->prev; + if (prev->opcode == SHADER_OPCODE_SQRT) { + if (inst->src[0].equals(src_reg(prev->dst))) { + inst->opcode = SHADER_OPCODE_RSQ; + inst->src[0] = prev->src[0]; + progress = true; + } + } + break; + } default: break; } |