Mesa (master): zink: lower away fdph

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Module: Mesa
Branch: master
Commit: fa915a724fbff0878478ca7dd968207bc9906016
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=fa915a724fbff0878478ca7dd968207bc9906016

Author: Erik Faye-Lund <erik.faye-lund at collabora.com>
Date:   Fri Jan 31 18:24:42 2020 +0100

zink: lower away fdph

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3668>

---

 src/gallium/drivers/zink/nir_to_spirv/nir_to_spirv.c | 3 +++
 src/gallium/drivers/zink/zink_compiler.c             | 1 +
 2 files changed, 4 insertions(+)

diff --git a/src/gallium/drivers/zink/nir_to_spirv/nir_to_spirv.c b/src/gallium/drivers/zink/nir_to_spirv/nir_to_spirv.c
index af1ddef11bd..043b210caf9 100644
--- a/src/gallium/drivers/zink/nir_to_spirv/nir_to_spirv.c
+++ b/src/gallium/drivers/zink/nir_to_spirv/nir_to_spirv.c
@@ -1025,6 +1025,9 @@ emit_alu(struct ntv_context *ctx, nir_alu_instr *alu)
       result = emit_binop(ctx, SpvOpDot, dest_type, src[0], src[1]);
       break;
 
+   case nir_op_fdph:
+      unreachable("should already be lowered away");
+
    case nir_op_seq:
    case nir_op_sne:
    case nir_op_slt:
diff --git a/src/gallium/drivers/zink/zink_compiler.c b/src/gallium/drivers/zink/zink_compiler.c
index a1428785bd4..5c20c7b297f 100644
--- a/src/gallium/drivers/zink/zink_compiler.c
+++ b/src/gallium/drivers/zink/zink_compiler.c
@@ -164,6 +164,7 @@ lower_discard_if(nir_shader *shader)
 static const struct nir_shader_compiler_options nir_options = {
    .lower_all_io_to_temps = true,
    .lower_ffma = true,
+   .lower_fdph = true,
    .lower_flrp32 = true,
    .lower_fpow = true,
    .lower_fsat = true,