Module: Mesa
Branch: main
Commit: 92ee2e6b64369d3bdcb44e99e5a318588129950b
URL:    
http://cgit.freedesktop.org/mesa/mesa/commit/?id=92ee2e6b64369d3bdcb44e99e5a318588129950b

Author: Iván Briano <[email protected]>
Date:   Tue Sep  6 15:28:26 2022 -0700

anv: pipelineStageCreationFeedbackCount is allowed to be 0

Fixes: 6601e5d6fc6 ("anv: implement VK_EXT_pipeline_creation_feedback")

Reviewed-by: Lionel Landwerlin <[email protected]>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18451>

---

 src/intel/vulkan/anv_pipeline.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/src/intel/vulkan/anv_pipeline.c b/src/intel/vulkan/anv_pipeline.c
index dac2a44ff0d..39a1b051942 100644
--- a/src/intel/vulkan/anv_pipeline.c
+++ b/src/intel/vulkan/anv_pipeline.c
@@ -1893,8 +1893,9 @@ done:
    if (create_feedback) {
       *create_feedback->pPipelineCreationFeedback = pipeline_feedback;
 
-      assert(info->stageCount == 
create_feedback->pipelineStageCreationFeedbackCount);
-      for (uint32_t i = 0; i < info->stageCount; i++) {
+      uint32_t stage_count = 
create_feedback->pipelineStageCreationFeedbackCount;
+      assert(stage_count == 0 || info->stageCount == stage_count);
+      for (uint32_t i = 0; i < stage_count; i++) {
          gl_shader_stage s = vk_to_mesa_shader_stage(info->pStages[i].stage);
          create_feedback->pPipelineStageCreationFeedbacks[i] = 
stages[s].feedback;
       }
@@ -2072,8 +2073,10 @@ anv_pipeline_compile_cs(struct anv_compute_pipeline 
*pipeline,
    if (create_feedback) {
       *create_feedback->pPipelineCreationFeedback = pipeline_feedback;
 
-      assert(create_feedback->pipelineStageCreationFeedbackCount == 1);
-      create_feedback->pPipelineStageCreationFeedbacks[0] = stage.feedback;
+      if (create_feedback->pipelineStageCreationFeedbackCount) {
+         assert(create_feedback->pipelineStageCreationFeedbackCount == 1);
+         create_feedback->pPipelineStageCreationFeedbacks[0] = stage.feedback;
+      }
    }
 
    pipeline->cs = bin;
@@ -2813,8 +2816,9 @@ anv_pipeline_compile_ray_tracing(struct 
anv_ray_tracing_pipeline *pipeline,
    if (create_feedback) {
       *create_feedback->pPipelineCreationFeedback = pipeline_feedback;
 
-      assert(info->stageCount == 
create_feedback->pipelineStageCreationFeedbackCount);
-      for (uint32_t i = 0; i < info->stageCount; i++) {
+      uint32_t stage_count = 
create_feedback->pipelineStageCreationFeedbackCount;
+      assert(stage_count == 0 || info->stageCount == stage_count);
+      for (uint32_t i = 0; i < stage_count; i++) {
          gl_shader_stage s = vk_to_mesa_shader_stage(info->pStages[i].stage);
          create_feedback->pPipelineStageCreationFeedbacks[i] = 
stages[s].feedback;
       }

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