diff options
| author | Dave Airlie <[email protected]> | 2016-11-28 03:15:30 +0000 |
|---|---|---|
| committer | Dave Airlie <[email protected]> | 2016-12-07 23:26:19 +0000 |
| commit | c7dc1b010ae581f532240b661cb3d1c82e117e7e (patch) | |
| tree | 82bee407dee2c4ed525fbc6bea404fe392ecb87a /src/amd | |
| parent | dfef9c7c1fcf0070784d1a19386d885bb1b3f511 (diff) | |
radv: make push constants optional
We don't set the push constants slot up unless
something will cause us to need it.
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.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c index 5c59d472b20..f6449805c0d 100644 --- a/src/amd/common/ac_nir_to_llvm.c +++ b/src/amd/common/ac_nir_to_llvm.c @@ -461,6 +461,14 @@ static void create_function(struct nir_to_llvm_context *ctx, unsigned i; unsigned num_sets = ctx->options->layout ? ctx->options->layout->num_sets : 0; unsigned user_sgpr_idx; + bool need_push_constants; + + need_push_constants = true; + if (!ctx->options->layout) + need_push_constants = false; + else if (!ctx->options->layout->push_constant_size && + !ctx->options->layout->dynamic_offset_count) + need_push_constants = false; /* 1 for each descriptor set */ for (unsigned i = 0; i < num_sets; ++i) { @@ -469,8 +477,10 @@ static void create_function(struct nir_to_llvm_context *ctx, } } - /* 1 for push constants and dynamic descriptors */ - arg_types[arg_idx++] = const_array(ctx->i8, 1024 * 1024); + if (need_push_constants) { + /* 1 for push constants and dynamic descriptors */ + arg_types[arg_idx++] = const_array(ctx->i8, 1024 * 1024); + } array_count = arg_idx; switch (nir->stage) { @@ -551,9 +561,11 @@ static void create_function(struct nir_to_llvm_context *ctx, ctx->descriptor_sets[i] = NULL; } - ctx->push_constants = LLVMGetParam(ctx->main_function, arg_idx++); - set_userdata_location_shader(ctx, AC_UD_PUSH_CONSTANTS, user_sgpr_idx, 2); - user_sgpr_idx += 2; + if (need_push_constants) { + ctx->push_constants = LLVMGetParam(ctx->main_function, arg_idx++); + set_userdata_location_shader(ctx, AC_UD_PUSH_CONSTANTS, user_sgpr_idx, 2); + user_sgpr_idx += 2; + } switch (nir->stage) { case MESA_SHADER_COMPUTE: |