[Mesa-dev] [PATCH v3 74/78] i965/vec4: Enable NIR-vec4 pass on ARB_vertex_programs

[Eduardo Lima Mitev]

From: Antia Puentes <apuentes at igalia.com>

---
 src/mesa/drivers/dri/i965/brw_vec4.cpp | 47 +++++++++++++++++-----------------
 1 file changed, 24 insertions(+), 23 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_vec4.cpp b/src/mesa/drivers/dri/i965/brw_vec4.cpp
index 8d83887..88b601a 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4.cpp
@@ -1732,18 +1732,16 @@ vec4_visitor::run(gl_clip_plane *clip_planes)
 
    emit_prolog();
 
-   if (shader) {
-      if (use_vec4_nir) {
-         assert(prog->nir != NULL);
-         emit_nir_code();
-         if (failed)
-            return false;
-      } else {
-         /* Generate VS IR for main().  (the visitor only descends into
-          * functions called "main").
-          */
-         visit_instructions(shader->base.ir);
-      }
+   if (use_vec4_nir) {
+      assert(prog->nir != NULL);
+      emit_nir_code();
+      if (failed)
+         return false;
+   } else if (shader) {
+      /* Generate VS IR for main().  (the visitor only descends into
+       * functions called "main").
+       */
+      visit_instructions(shader->base.ir);
    } else {
       emit_program_code();
    }
@@ -1921,18 +1919,21 @@ brw_vs_emit(struct brw_context *brw,
    if (unlikely(INTEL_DEBUG & DEBUG_VS))
       brw_dump_ir("vertex", prog, &shader->base, &vp->Base);
 
-   if (brw->intelScreen->compiler->scalar_vs) {
-      if (!vp->Base.nir) {
-         /* Normally we generate NIR in LinkShader() or
-          * ProgramStringNotify(), but Mesa's fixed-function vertex program
-          * handling doesn't notify the driver at all.  Just do it here, at
-          * the last minute, even though it's lame.
-          */
-         assert(vp->Base.Id == 0 && prog == NULL);
-         vp->Base.nir =
-            brw_create_nir(brw, NULL, &vp->Base, MESA_SHADER_VERTEX, true);
-      }
+   if (!vp->Base.nir &&
+       (brw->intelScreen->compiler->scalar_vs ||
+        brw->intelScreen->compiler->glsl_compiler_options[MESA_SHADER_VERTEX].NirOptions != NULL)) {
+      /* Normally we generate NIR in LinkShader() or
+       * ProgramStringNotify(), but Mesa's fixed-function vertex program
+       * handling doesn't notify the driver at all.  Just do it here, at
+       * the last minute, even though it's lame.
+       */
+      assert(vp->Base.Id == 0 && prog == NULL);
+      vp->Base.nir =
+         brw_create_nir(brw, NULL, &vp->Base, MESA_SHADER_VERTEX,
+                        brw->intelScreen->compiler->scalar_vs);
+   }
 
+   if (brw->intelScreen->compiler->scalar_vs) {
       prog_data->base.dispatch_mode = DISPATCH_MODE_SIMD8;
 
       fs_visitor v(brw->intelScreen->compiler, brw,
-- 
2.4.6