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nir/linking: always set the used_across_stages/outputs_read bits

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If we don't remap and output this code would trample the outputs
read bits.

This fixes a regression in
dEQP-VK.tessellation.shader_input_output.barrier

Fixes: 1c9c42d16b (nir: add varying component packing helpers)
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2017-12-18 16:49:43 +10:00
parent 3be382cd7c
commit 0e8e7ccf9d
1 changed files with 8 additions and 7 deletions
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15
src/compiler/nir/nir_linking_helpers.c
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@ -297,14 +297,15 @@ remap_slots_and_components(struct exec_list *var_list, gl_shader_stage stage,
unsigned location = var->data.location - VARYING_SLOT_VAR0;
struct varying_loc *new_loc = &remap[location][var->data.location_frac];
uint64_t slots = (((uint64_t)1 << num_slots) - 1) << var->data.location;
if (slots & *slots_used)
used_across_stages = true;
if (slots & *out_slots_read)
outputs_read = true;
if (new_loc->location) {
uint64_t slots = (((uint64_t)1 << num_slots) - 1) << var->data.location;
if (slots & *slots_used)
used_across_stages = true;
if (slots & *out_slots_read)
outputs_read = true;
var->data.location = new_loc->location;
var->data.location_frac = new_loc->component;
}