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aco: fix 1D textureGrad() on GFX9

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Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Fixes: 6f718edced ('aco: simplify gathering of MIMG address components')
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4550>
This commit is contained in:
Rhys Perry
2020-04-14 15:15:02 +01:00
committed by Marge Bot
parent 8ce46f352e
commit c818b5c089
1 changed files with 1 additions and 1 deletions
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2
src/amd/compiler/aco_instruction_selection.cpp
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@@ -8458,7 +8458,7 @@ void visit_tex(isel_context *ctx, nir_tex_instr *instr)
if (instr->sampler_dim == GLSL_SAMPLER_DIM_1D && ctx->options->chip_class == GFX9) {
assert(has_ddx && has_ddy && ddx.size() == 1 && ddy.size() == 1);
Temp zero = bld.copy(bld.def(v1), Operand(0u));
derivs = {ddy, zero, ddy, zero};
derivs = {ddx, zero, ddy, zero};
} else {
for (unsigned i = 0; has_ddx && i < ddx.size(); i++)
derivs.emplace_back(emit_extract_vector(ctx, ddx, i, v1));