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radv/ac: Use constants for immutable samplers. 

Signed-off-by: Bas Nieuwenhuizen <basni@google.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Bas Nieuwenhuizen 2017-02-27 09:46:12 +01:00
parent 500e6e40f6
commit 137b06b437
1 changed files with 16 additions and 0 deletions
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16
src/amd/common/ac_nir_to_llvm.c
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@ -3383,6 +3383,7 @@ static LLVMValueRef get_sampler_desc(struct nir_to_llvm_context *ctx,
LLVMBuilderRef builder = ctx->builder;
LLVMTypeRef type;
LLVMValueRef index = NULL;
unsigned constant_index = 0;
assert(deref->var->data.binding < layout->binding_count);
@ -3419,6 +3420,21 @@ static LLVMValueRef get_sampler_desc(struct nir_to_llvm_context *ctx,
if (child->deref_array_type == nir_deref_array_type_indirect) {
index = get_src(ctx, child->indirect);
}
constant_index = child->base_offset;
}
if (desc_type == DESC_SAMPLER && binding->immutable_samplers &&
(!index || binding->immutable_samplers_equal)) {
if (binding->immutable_samplers_equal)
constant_index = 0;
LLVMValueRef constants[] = {
LLVMConstInt(ctx->i32, binding->immutable_samplers[constant_index * 4 + 0], 0),
LLVMConstInt(ctx->i32, binding->immutable_samplers[constant_index * 4 + 1], 0),
LLVMConstInt(ctx->i32, binding->immutable_samplers[constant_index * 4 + 2], 0),
LLVMConstInt(ctx->i32, binding->immutable_samplers[constant_index * 4 + 3], 0),
};
return ac_build_gather_values(&ctx->ac, constants, 4);
}
assert(stride % type_size == 0);