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tu/rt: add and lower loop continue construct in traversal shaders

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We are going to disallow continue statements without
loop continue constructs.

Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@intel.com>
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Reviewed-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/39942>
This commit is contained in:
Daniel Schürmann 2026-02-11 11:55:26 +01:00 • committed by Marge Bot
parent d909e14f30
commit e99b57ae5b
1 changed files with 8 additions and 2 deletions
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10
src/freedreno/vulkan/tu_nir_lower_ray_query.cc
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@ -10,6 +10,7 @@
#include "compiler/spirv/spirv.h"
#include "nir_builder.h"
#include "nir_control_flow.h"
#include "nir_deref.h"
enum rq_intersection_var_index {
@ -560,8 +561,10 @@ build_ray_traversal(nir_builder *b, nir_deref_instr *rq,
nir_variable *incomplete = nir_local_variable_create(b->impl, glsl_bool_type(), "incomplete");
nir_store_var(b, incomplete, nir_imm_true(b), 0x1);
nir_push_loop(b);
nir_loop *loop = nir_push_loop(b);
{
nir_loop_add_continue_construct(loop);
/* Go up the stack if current_node == VK_BVH_INVALID_NODE */
nir_push_if(b, nir_ieq_imm(b, rq_load(b, rq, current_node), VK_BVH_INVALID_NODE));
{
@ -928,7 +931,7 @@ build_ray_traversal(nir_builder *b, nir_deref_instr *rq,
}
nir_pop_if(b, NULL);
}
nir_pop_loop(b, NULL);
nir_pop_loop(b, loop);
return nir_load_var(b, incomplete);
}
@ -1035,6 +1038,9 @@ tu_nir_lower_ray_queries(nir_shader *shader)
ralloc_free(query_ht);
if (progress)
nir_lower_continue_constructs(shader);
return progress;
}