radv: set the slot_index correctly for VARYING_SLOT_CLIP_DIST1

For selecting a different SQ_EXP_POS target.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

diff --git a/src/amd/vulkan/radv_nir_to_llvm.c b/src/amd/vulkan/radv_nir_to_llvm.c
index ba0fb55..597d006 100644 (file)
--- a/src/amd/vulkan/radv_nir_to_llvm.c
+++ b/src/amd/vulkan/radv_nir_to_llvm.c
@@ -3043,7 +3043,7 @@ handle_vs_outputs_post(struct radv_shader_context *ctx,
                        continue;
 
                outputs[noutput].slot_name = i;
-               outputs[noutput].slot_index = 0;
+               outputs[noutput].slot_index = i == VARYING_SLOT_CLIP_DIST1;
 
                if (ctx->stage == MESA_SHADER_VERTEX &&
                    !ctx->is_gs_copy_shader) {