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anv/pipeline: Only do buffer bounds checks if robustBufferAccess is enabled

This commit is contained in:
Jason Ekstrand 2016-05-14 14:55:39 -07:00
parent 23090b51e0
commit 902628bce6
1 changed files with 7 additions and 1 deletions
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8
src/intel/vulkan/anv_nir_apply_dynamic_offsets.c
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@ -27,6 +27,7 @@
static void
apply_dynamic_offsets_block(nir_block *block, nir_builder *b,
const struct anv_pipeline_layout *layout,
bool add_bounds_checks,
uint32_t indices_start)
{
struct anv_descriptor_set_layout *set_layout;
@ -86,6 +87,9 @@ apply_dynamic_offsets_block(nir_block *block, nir_builder *b,
nir_instr_rewrite_src(&intrin->instr, offset_src,
nir_src_for_ssa(new_offset));
if (!add_bounds_checks)
continue;
/* In order to avoid out-of-bounds access, we predicate */
nir_ssa_def *pred = nir_uge(b, nir_channel(b, &offset_load->dest.ssa, 1),
old_offset);
@ -138,6 +142,8 @@ anv_nir_apply_dynamic_offsets(struct anv_pipeline *pipeline,
if (!layout || !layout->stage[shader->stage].has_dynamic_offsets)
return;
const bool add_bounds_checks = pipeline->device->robust_buffer_access;
nir_foreach_function(function, shader) {
if (!function->impl)
continue;
@ -147,7 +153,7 @@ anv_nir_apply_dynamic_offsets(struct anv_pipeline *pipeline,
nir_foreach_block(block, function->impl) {
apply_dynamic_offsets_block(block, &builder, pipeline->layout,
shader->num_uniforms);
add_bounds_checks, shader->num_uniforms);
}
nir_metadata_preserve(function->impl, nir_metadata_block_index |