Mesa (master): nv50/ir/nir: don't emit a restart with set a stream_id

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Module: Mesa
Branch: master
Commit: 636cf22a1f457c786ee068a1c91ed1461d6d3be0
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=636cf22a1f457c786ee068a1c91ed1461d6d3be0

Author: Karol Herbst <kherbst at redhat.com>
Date:   Tue Jun 16 17:02:06 2020 +0200

nv50/ir/nir: don't emit a restart with set a stream_id

Signed-off-by: Karol Herbst <kherbst at redhat.com>
Tested-by: Ben Skeggs <bskeggs at redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5512>

---

 src/gallium/drivers/nouveau/codegen/nv50_ir_from_nir.cpp | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_from_nir.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_from_nir.cpp
index 40c1c526224..1638872bdf9 100644
--- a/src/gallium/drivers/nouveau/codegen/nv50_ir_from_nir.cpp
+++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_from_nir.cpp
@@ -1946,12 +1946,17 @@ Converter::visit(nir_intrinsic_instr *insn)
       }
       break;
    }
-   case nir_intrinsic_emit_vertex:
+   case nir_intrinsic_emit_vertex: {
       if (info->io.genUserClip > 0)
          handleUserClipPlanes();
-      // fallthrough
+      uint32_t idx = nir_intrinsic_stream_id(insn);
+      mkOp1(getOperation(op), TYPE_U32, NULL, mkImm(idx))->fixed = 1;
+      break;
+   }
    case nir_intrinsic_end_primitive: {
       uint32_t idx = nir_intrinsic_stream_id(insn);
+      if (idx)
+         break;
       mkOp1(getOperation(op), TYPE_U32, NULL, mkImm(idx))->fixed = 1;
       break;
    }