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authorDave Airlie <[email protected]>2017-04-18 05:35:05 +1000
committerDave Airlie <[email protected]>2017-04-19 09:00:42 +1000
commit0b62669c8d8f01c68e22e0ef380cdd606c9045dc (patch)
tree8015bf6ca34e2a75ce1eb3bb1c24d91856503ff7 /src/amd
parentec4785afb7bbba0627719731ceba05deeb58baac (diff)
radv/ac: frag shader only needs ring offsets if sample positions enabled
mostly documenting things, since with modern llvm we always have the spill enabled. Reviewed-by: Bas Nieuwenhuizen <[email protected]> Signed-off-by: Dave Airlie <[email protected]>
Diffstat (limited to 'src/amd')
-rw-r--r--src/amd/common/ac_nir_to_llvm.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c
index b3e522dd732..1ca27d5e701 100644
--- a/src/amd/common/ac_nir_to_llvm.c
+++ b/src/amd/common/ac_nir_to_llvm.c
@@ -572,10 +572,13 @@ static void create_function(struct nir_to_llvm_context *ctx)
ctx->stage == MESA_SHADER_VERTEX ||
ctx->stage == MESA_SHADER_TESS_CTRL ||
ctx->stage == MESA_SHADER_TESS_EVAL ||
- ctx->stage == MESA_SHADER_FRAGMENT ||
ctx->is_gs_copy_shader)
need_ring_offsets = true;
+ if (ctx->stage == MESA_SHADER_FRAGMENT &&
+ ctx->shader_info->info.ps.needs_sample_positions)
+ need_ring_offsets = true;
+
if (need_ring_offsets && !ctx->options->supports_spill) {
arg_types[arg_idx++] = const_array(ctx->v16i8, 16); /* address of rings */
}