From b64bd1fdc37eed1bb62d2b32ad22f0f77501f7f2 Mon Sep 17 00:00:00 2001 From: Antia Puentes Date: Wed, 17 Jun 2015 09:51:10 +0200 Subject: [PATCH] i965/nir/vec4: Implement floating-point fused multiply-add Adds NIR ALU operation: * nir_op_ffma Reviewed-by: Jason Ekstrand --- src/mesa/drivers/dri/i965/brw_vec4_nir.cpp | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp b/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp index b332fd315fb..2cf157678c9 100644 --- a/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp +++ b/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp @@ -1193,6 +1193,15 @@ vec4_visitor::nir_emit_alu(nir_alu_instr *instr) emit(SHR(dst, op[0], op[1])); break; + case nir_op_ffma: + op[0] = fix_3src_operand(op[0]); + op[1] = fix_3src_operand(op[1]); + op[2] = fix_3src_operand(op[2]); + + inst = emit(MAD(dst, op[2], op[1], op[0])); + inst->saturate = instr->dest.saturate; + break; + default: unreachable("Unimplemented ALU operation"); } -- 2.30.2