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broadcom/compiler: handle shared stores with robust buffer access

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For some reason we supported all shared intrinsics but this one.

Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18744>
This commit is contained in:
Iago Toral Quiroga 2022-09-22 09:20:46 +02:00 • committed by Marge Bot
parent b2bce9c98a
commit 44b02b5cb1
1 changed files with 10 additions and 4 deletions
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14
src/broadcom/compiler/v3d_nir_lower_robust_buffer_access.c
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@ -103,26 +103,31 @@ lower_shared(struct v3d_compile *c,
nir_builder *b,
nir_intrinsic_instr *instr)
{
uint32_t type_sz;
uint32_t type_sz, offset_src;
if (instr->intrinsic == nir_intrinsic_load_shared) {
offset_src = 0;
type_sz = nir_dest_bit_size(instr->dest) / 8;
} else if (instr->intrinsic == nir_intrinsic_store_shared) {
offset_src = 1;
type_sz = nir_src_bit_size(instr->src[0]) / 8;
} else {
/* atomic */
offset_src = 0;
type_sz = 4;
}
b->cursor = nir_before_instr(&instr->instr);
const uint32_t access_size = instr->num_components * type_sz;
nir_ssa_def *max_access_offset =
nir_iadd(b, instr->src[0].ssa,
nir_iadd(b, instr->src[offset_src].ssa,
nir_imm_int(b, access_size - 1));
nir_ssa_def *offset =
nir_bcsel(b, nir_uge(b, max_access_offset,
nir_imm_int(b, c->s->info.shared_size)),
nir_imm_int(b, 0),
instr->src[0].ssa);
instr->src[offset_src].ssa);
nir_instr_rewrite_src(&instr->instr, &instr->src[0],
nir_instr_rewrite_src(&instr->instr, &instr->src[offset_src],
nir_src_for_ssa(offset));
}
@ -155,6 +160,7 @@ lower_instr(nir_builder *b, nir_instr *instr, void *_state)
case nir_intrinsic_ssbo_atomic_comp_swap:
lower_atomic(c, b, intr);
return true;
case nir_intrinsic_store_shared:
case nir_intrinsic_load_shared:
case nir_intrinsic_shared_atomic_add:
case nir_intrinsic_shared_atomic_imin: