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nir: Add nir_ssa_scalar_is_undef.

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Signed-off-by: Georg Lehmann <dadschoorse@gmail.com>
Reviewed-by: Alyssa Rosenzweig <alyssa@collabora.com>
Reviewed-by: Jason Ekstrand <jason.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18183>
This commit is contained in:
Georg Lehmann
2022-08-22 16:32:36 +02:00
committed by Marge Bot
parent cfaff1d341
commit 8eac45b274
3 changed files with 10 additions and 4 deletions
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src/amd/compiler/aco_instruction_selection.cpp
+2 -2
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@@ -6399,8 +6399,8 @@ visit_image_store(isel_context* ctx, nir_intrinsic_instr* instr)
if (instr->src[3].ssa->bit_size == 32 || instr->src[3].ssa->bit_size == 16) {
for (uint32_t i = 0; i < instr->num_components; i++) {
nir_ssa_scalar comp = nir_ssa_scalar_resolved(instr->src[3].ssa, i);
if (comp.def->parent_instr->type == nir_instr_type_ssa_undef ||
(nir_ssa_scalar_is_const(comp) && nir_ssa_scalar_as_uint(comp) == 0))
if ((nir_ssa_scalar_is_const(comp) && nir_ssa_scalar_as_uint(comp) == 0) ||
nir_ssa_scalar_is_undef(comp))
dmask &= ~BITFIELD_BIT(i);
}