4 files changed, 40 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_compiler.h b/src/mesa/drivers/dri/i965/brw_compiler.h
index f022f3829be..e3a26d6a353 100644
--- a/src/mesa/drivers/dri/i965/brw_compiler.h
+++ b/src/mesa/drivers/dri/i965/brw_compiler.h
@@ -458,6 +458,8 @@ struct brw_vue_map {
    int num_slots;
 };
 
+void brw_print_vue_map(FILE *fp, const struct brw_vue_map *vue_map);
+
 /**
  * Convert a VUE slot number into a byte offset within the VUE.
  */
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp b/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp
index 49c10837334..1a09f76a20c 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp
@@ -812,6 +812,12 @@ brw_compile_gs(const struct brw_compiler *compiler, void *log_data,
    /* Now that prog_data setup is done, we are ready to actually compile the
     * program.
     */
+   if (unlikely(INTEL_DEBUG & DEBUG_GS)) {
+      fprintf(stderr, "GS Input ");
+      brw_print_vue_map(stderr, &c.input_vue_map);
+      fprintf(stderr, "GS Output ");
+      brw_print_vue_map(stderr, &prog_data->base.vue_map);
+   }
 
    if (compiler->scalar_gs) {
       /* TODO: Support instanced GS.  We have basically no tests... */
diff --git a/src/mesa/drivers/dri/i965/brw_vs.c b/src/mesa/drivers/dri/i965/brw_vs.c
index 0b805b1c0c4..967448e0e41 100644
--- a/src/mesa/drivers/dri/i965/brw_vs.c
+++ b/src/mesa/drivers/dri/i965/brw_vs.c
@@ -159,9 +159,13 @@ brw_codegen_vs_prog(struct brw_context *brw,
       start_time = get_time();
    }
 
-   if (unlikely(INTEL_DEBUG & DEBUG_VS))
+   if (unlikely(INTEL_DEBUG & DEBUG_VS)) {
       brw_dump_ir("vertex", prog, vs ? &vs->base : NULL, &vp->program.Base);
 
+      fprintf(stderr, "VS Output ");
+      brw_print_vue_map(stderr, &prog_data.base.vue_map);
+   }
+
    int st_index = -1;
    if (INTEL_DEBUG & DEBUG_SHADER_TIME)
       st_index = brw_get_shader_time_index(brw, prog, &vp->program.Base, ST_VS);
diff --git a/src/mesa/drivers/dri/i965/brw_vue_map.c b/src/mesa/drivers/dri/i965/brw_vue_map.c
index 45662bd5afc..edb16087410 100644
--- a/src/mesa/drivers/dri/i965/brw_vue_map.c
+++ b/src/mesa/drivers/dri/i965/brw_vue_map.c
@@ -178,3 +178,30 @@ brw_compute_vue_map(const struct brw_device_info *devinfo,
 
    vue_map->num_slots = separate ? slot + 1 : slot;
 }
+
+static const char *
+varying_name(brw_varying_slot slot)
+{
+   if (slot < VARYING_SLOT_MAX)
+      return gl_varying_slot_name(slot);
+
+   static const char *brw_names[] = {
+      [BRW_VARYING_SLOT_NDC - VARYING_SLOT_MAX] = "BRW_VARYING_SLOT_NDC",
+      [BRW_VARYING_SLOT_PAD - VARYING_SLOT_MAX] = "BRW_VARYING_SLOT_PAD",
+      [BRW_VARYING_SLOT_PNTC - VARYING_SLOT_MAX] = "BRW_VARYING_SLOT_PNTC",
+   };
+
+   return brw_names[slot - VARYING_SLOT_MAX];
+}
+
+void
+brw_print_vue_map(FILE *fp, const struct brw_vue_map *vue_map)
+{
+   fprintf(fp, "VUE map (%d slots, %s)\n",
+           vue_map->num_slots, vue_map->separate ? "SSO" : "non-SSO");
+   for (int i = 0; i < vue_map->num_slots; i++) {
+      fprintf(fp, "  [%d] %s\n", i,
+              varying_name(vue_map->slot_to_varying[i]));
+   }
+   fprintf(fp, "\n");
+}