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authorAntia Puentes <[email protected]>2015-06-17 09:51:10 +0200
committerJason Ekstrand <[email protected]>2015-08-03 09:40:49 -0700
commitb64bd1fdc37eed1bb62d2b32ad22f0f77501f7f2 (patch)
tree1ded526e810fdebcd43c44e0c7881cd6c46dc5e4 /src/mesa
parentd12e165dbb403c3cf86ab7f1b8f28ab6188b479f (diff)
i965/nir/vec4: Implement floating-point fused multiply-add
Adds NIR ALU operation: * nir_op_ffma Reviewed-by: Jason Ekstrand <[email protected]>
Diffstat (limited to 'src/mesa')
-rw-r--r--src/mesa/drivers/dri/i965/brw_vec4_nir.cpp9
1 files changed, 9 insertions, 0 deletions
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");
}