[Mesa-dev] [PATCH 3/6] nir: Add fdph and fdph_replicated opcodes

[Jason Ekstrand]

---
 src/glsl/nir/nir_lower_vec_to_movs.c | 3 ++-
 src/glsl/nir/nir_opcodes.py          | 5 +++++
 src/glsl/nir/nir_opt_algebraic.py    | 1 +
 3 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/glsl/nir/nir_lower_vec_to_movs.c b/src/glsl/nir/nir_lower_vec_to_movs.c
index b7ee4e8..622e59c 100644
--- a/src/glsl/nir/nir_lower_vec_to_movs.c
+++ b/src/glsl/nir/nir_lower_vec_to_movs.c
@@ -89,7 +89,8 @@ has_replicated_dest(nir_alu_instr *alu)
 {
    return alu->op == nir_op_fdot_replicated2 ||
           alu->op == nir_op_fdot_replicated3 ||
-          alu->op == nir_op_fdot_replicated4;
+          alu->op == nir_op_fdot_replicated4 ||
+          alu->op == nir_op_fdph_replicated;
 }
 
 /* Attempts to coalesce the "move" from the given source of the vec to the
diff --git a/src/glsl/nir/nir_opcodes.py b/src/glsl/nir/nir_opcodes.py
index 495d109..f2d584f 100644
--- a/src/glsl/nir/nir_opcodes.py
+++ b/src/glsl/nir/nir_opcodes.py
@@ -456,6 +456,11 @@ binop_reduce("fdot", 1, tfloat, tfloat, "{src0} * {src1}", "{src0} + {src1}",
 binop_reduce("fdot_replicated", 4, tfloat, tfloat,
              "{src0} * {src1}", "{src0} + {src1}", "{src}")
 
+opcode("fdph", 1, tfloat, [3, 4], [tfloat, tfloat], "",
+       "src0.x * src1.x + src0.y * src1.y + src0.z * src1.z + src1.w")
+opcode("fdph_replicated", 4, tfloat, [3, 4], [tfloat, tfloat], "",
+       "src0.x * src1.x + src0.y * src1.y + src0.z * src1.z + src1.w")
+
 binop("fmin", tfloat, "", "fminf(src0, src1)")
 binop("imin", tint, commutative + associative, "src1 > src0 ? src0 : src1")
 binop("umin", tunsigned, commutative + associative, "src1 > src0 ? src0 : src1")
diff --git a/src/glsl/nir/nir_opt_algebraic.py b/src/glsl/nir/nir_opt_algebraic.py
index 43558a5..585e5e0 100644
--- a/src/glsl/nir/nir_opt_algebraic.py
+++ b/src/glsl/nir/nir_opt_algebraic.py
@@ -244,6 +244,7 @@ late_optimizations = [
    (('fdot2', a, b), ('fdot_replicated2', a, b), 'options->fdot_replicates'),
    (('fdot3', a, b), ('fdot_replicated3', a, b), 'options->fdot_replicates'),
    (('fdot4', a, b), ('fdot_replicated4', a, b), 'options->fdot_replicates'),
+   (('fdph', a, b), ('fdph_replicated', a, b), 'options->fdot_replicates'),
 ]
 
 print nir_algebraic.AlgebraicPass("nir_opt_algebraic", optimizations).render()
-- 
2.5.0.400.gff86faf