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ac/nir: add support for arrays-of-arrays to get_sampler_desc 

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Nicolai Hähnle 2017-06-09 15:16:51 +02:00
parent 677bd47cb9
commit b36b6f76fa
1 changed files with 20 additions and 5 deletions
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25
src/amd/common/ac_nir_to_llvm.c
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@ -4224,17 +4224,32 @@ static LLVMValueRef get_sampler_desc(struct ac_nir_context *ctx,
{
LLVMValueRef index = NULL;
unsigned constant_index = 0;
const nir_deref *tail = &deref->deref;
if (deref->deref.child) {
const nir_deref_array *child =
(const nir_deref_array *)deref->deref.child;
while (tail->child) {
const nir_deref_array *child = nir_deref_as_array(tail->child);
unsigned array_size = glsl_get_aoa_size(tail->child->type);
if (!array_size)
array_size = 1;
assert(child->deref_array_type != nir_deref_array_type_wildcard);
if (child->deref_array_type == nir_deref_array_type_indirect) {
index = get_src(ctx, child->indirect);
LLVMValueRef indirect = get_src(ctx, child->indirect);
indirect = LLVMBuildMul(ctx->ac.builder, indirect,
LLVMConstInt(ctx->ac.i32, array_size, false), "");
if (!index)
index = indirect;
else
index = LLVMBuildAdd(ctx->ac.builder, index, indirect, "");
}
constant_index = child->base_offset;
constant_index += child->base_offset * array_size;
tail = &child->deref;
}
return ctx->abi->load_sampler_desc(ctx->abi,