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radeonsi: clean up code for loading VS inputs

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Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6445>
This commit is contained in:
Marek Olšák
2020-08-14 17:56:42 -04:00
parent ed9391df3f
commit 44eaee688b
1 changed files with 7 additions and 33 deletions
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40
src/gallium/drivers/radeonsi/si_shader_llvm_vs.c
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@@ -225,44 +225,18 @@ static void load_input_vs(struct si_shader_context *ctx, unsigned input_index, L
out[i] = ac_to_float(&ctx->ac, fetches[i]);
}
static void declare_input_vs(struct si_shader_context *ctx, unsigned input_index)
{
LLVMValueRef input[4];
load_input_vs(ctx, input_index / 4, input);
for (unsigned chan = 0; chan < 4; chan++) {
ctx->inputs[input_index + chan] =
LLVMBuildBitCast(ctx->ac.builder, input[chan], ctx->ac.i32, "");
}
}
void si_llvm_load_vs_inputs(struct si_shader_context *ctx, struct nir_shader *nir)
{
uint64_t processed_inputs = 0;
const struct si_shader_info *info = &ctx->shader->selector->info;
nir_foreach_shader_in_variable (variable, nir) {
unsigned attrib_count = glsl_count_attribute_slots(variable->type, true);
unsigned input_idx = variable->data.driver_location;
unsigned loc = variable->data.location;
for (unsigned i = 0; i < info->num_inputs; i++) {
LLVMValueRef values[4];
for (unsigned i = 0; i < attrib_count; i++) {
/* Packed components share the same location so skip
* them if we have already processed the location.
*/
if (processed_inputs & ((uint64_t)1 << (loc + i))) {
input_idx += 4;
continue;
}
load_input_vs(ctx, i, values);
declare_input_vs(ctx, input_idx);
if (glsl_type_is_dual_slot(variable->type)) {
input_idx += 4;
declare_input_vs(ctx, input_idx);
}
processed_inputs |= ((uint64_t)1 << (loc + i));
input_idx += 4;
for (unsigned chan = 0; chan < 4; chan++) {
ctx->inputs[i * 4 + chan] =
LLVMBuildBitCast(ctx->ac.builder, values[chan], ctx->ac.i32, "");
}
}
}