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aco: fix load_barycentric_at_{sample,offset} on GFX6-7

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The computation was wrong.

Fixes dEQP-GLES31.functional.shaders.multisample_interpolation.interpolate_at_offset.*
with Zink on GFX6 (Pitcairn).

Cc: mesa-stable
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16099>
This commit is contained in:
Samuel Pitoiset 2022-04-22 15:15:33 +02:00 • committed by Marge Bot
parent 9662f9bcdc
commit 6873da0e42
1 changed files with 5 additions and 4 deletions
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9
src/amd/compiler/aco_instruction_selection.cpp
View file

@ -7843,11 +7843,12 @@ emit_interp_center(isel_context* ctx, Temp dst, Temp bary, Temp pos1, Temp pos2)
Temp tl_1 = bld.ds(aco_opcode::ds_swizzle_b32, bld.def(v1), p1, (1 << 15) | dpp_ctrl0);
ddx_1 = bld.ds(aco_opcode::ds_swizzle_b32, bld.def(v1), p1, (1 << 15) | dpp_ctrl1);
ddx_1 = bld.vop2(aco_opcode::v_sub_f32, bld.def(v1), ddx_1, tl_1);
ddx_2 = bld.ds(aco_opcode::ds_swizzle_b32, bld.def(v1), p1, (1 << 15) | dpp_ctrl2);
ddx_2 = bld.vop2(aco_opcode::v_sub_f32, bld.def(v1), ddx_2, tl_1);
ddy_1 = bld.ds(aco_opcode::ds_swizzle_b32, bld.def(v1), p1, (1 << 15) | dpp_ctrl2);
ddy_1 = bld.vop2(aco_opcode::v_sub_f32, bld.def(v1), ddy_1, tl_1);
Temp tl_2 = bld.ds(aco_opcode::ds_swizzle_b32, bld.def(v1), p2, (1 << 15) | dpp_ctrl0);
ddy_1 = bld.ds(aco_opcode::ds_swizzle_b32, bld.def(v1), p2, (1 << 15) | dpp_ctrl1);
ddy_1 = bld.vop2(aco_opcode::v_sub_f32, bld.def(v1), ddy_1, tl_2);
ddx_2 = bld.ds(aco_opcode::ds_swizzle_b32, bld.def(v1), p2, (1 << 15) | dpp_ctrl1);
ddx_2 = bld.vop2(aco_opcode::v_sub_f32, bld.def(v1), ddx_2, tl_2);
ddy_2 = bld.ds(aco_opcode::ds_swizzle_b32, bld.def(v1), p2, (1 << 15) | dpp_ctrl2);
ddy_2 = bld.vop2(aco_opcode::v_sub_f32, bld.def(v1), ddy_2, tl_2);
}