radeonsi/nir: fix location_frac handling for TCS outputs

Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>

diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c
index 2be1485..2cd0e45 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_shader.c
+++ b/src/gallium/drivers/radeonsi/si_shader.c
@@ -1402,7 +1402,7 @@ static void si_nir_store_output_tcs(struct ac_shader_abi *abi,
        addr = get_tcs_tes_buffer_address_from_generic_indices(ctx, vertex_index,
                                                               param_index, name, index);
 
-       for (unsigned chan = 0; chan < 8; chan++) {
+       for (unsigned chan = component; chan < 8; chan++) {
                if (!(writemask & (1 << chan)))
                        continue;
                LLVMValueRef value = ac_llvm_extract_elem(&ctx->ac, src, chan - component);