Mesa (main): aco/tests: add tests for pre-RA DPP combining

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Module: Mesa
Branch: main
Commit: 12be7c8feb5371edb2e71e04eb44d90e69c52587
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=12be7c8feb5371edb2e71e04eb44d90e69c52587

Author: Rhys Perry <pendingchaos02 at gmail.com>
Date:   Mon Jul 19 15:39:34 2021 +0100

aco/tests: add tests for pre-RA DPP combining

Signed-off-by: Rhys Perry <pendingchaos02 at gmail.com>
Reviewed-by: Timur Kristóf <timur.kristof at gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11924>

---

 src/amd/compiler/tests/test_optimizer.cpp | 79 +++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)

diff --git a/src/amd/compiler/tests/test_optimizer.cpp b/src/amd/compiler/tests/test_optimizer.cpp
index 54a11d399f6..e1953b0ec31 100644
--- a/src/amd/compiler/tests/test_optimizer.cpp
+++ b/src/amd/compiler/tests/test_optimizer.cpp
@@ -1020,3 +1020,82 @@ BEGIN_TEST(optimize.denorm_propagation)
       }
    }
 END_TEST
+
+BEGIN_TEST(optimizer.dpp)
+   //>> v1: %a, v1: %b, s2: %c = p_startpgm
+   if (!setup_cs("v1 v1 s2", GFX10_3))
+      return;
+
+   Operand a(inputs[0]);
+   Operand b(inputs[1]);
+   Operand c(inputs[2]);
+
+   /* basic optimization */
+   //! v1: %res0 = v_add_f32 %a, %b row_mirror bound_ctrl:1
+   //! p_unit_test 0, %res0
+   Temp tmp0 = bld.vop1_dpp(aco_opcode::v_mov_b32, bld.def(v1), a, dpp_row_mirror);
+   Temp res0 = bld.vop2(aco_opcode::v_add_f32, bld.def(v1), tmp0, b);
+   writeout(0, res0);
+
+   /* operand swapping */
+   //! v1: %res1 = v_subrev_f32 %a, %b row_mirror bound_ctrl:1
+   //! p_unit_test 1, %res1
+   Temp tmp1 = bld.vop1_dpp(aco_opcode::v_mov_b32, bld.def(v1), a, dpp_row_mirror);
+   Temp res1 = bld.vop2(aco_opcode::v_sub_f32, bld.def(v1), b, tmp1);
+   writeout(1, res1);
+
+   //! v1: %tmp2 = v_mov_b32 %a row_mirror bound_ctrl:1
+   //! v1: %res2 = v_sub_f32 %b, %tmp2 row_half_mirror bound_ctrl:1
+   //! p_unit_test 2, %res2
+   Temp tmp2 = bld.vop1_dpp(aco_opcode::v_mov_b32, bld.def(v1), a, dpp_row_mirror);
+   Temp res2 = bld.vop2_dpp(aco_opcode::v_sub_f32, bld.def(v1), b, tmp2, dpp_row_half_mirror);
+   writeout(2, res2);
+
+   /* modifiers */
+   //! v1: %res3 = v_add_f32 -%a, %b row_mirror bound_ctrl:1
+   //! p_unit_test 3, %res3
+   auto tmp3 = bld.vop1_dpp(aco_opcode::v_mov_b32, bld.def(v1), a, dpp_row_mirror);
+   tmp3.instr->dpp().neg[0] = true;
+   Temp res3 = bld.vop2(aco_opcode::v_add_f32, bld.def(v1), tmp3, b);
+   writeout(3, res3);
+
+   //! v1: %res4 = v_add_f32 -%a, %b row_mirror bound_ctrl:1
+   //! p_unit_test 4, %res4
+   Temp tmp4 = bld.vop1_dpp(aco_opcode::v_mov_b32, bld.def(v1), a, dpp_row_mirror);
+   auto res4 = bld.vop2_e64(aco_opcode::v_add_f32, bld.def(v1), tmp4, b);
+   res4.instr->vop3().neg[0] = true;
+   writeout(4, res4);
+
+   //! v1: %tmp5 = v_mov_b32 %a row_mirror bound_ctrl:1
+   //! v1: %res5 = v_add_f32 %tmp5, %b clamp
+   //! p_unit_test 5, %res5
+   Temp tmp5 = bld.vop1_dpp(aco_opcode::v_mov_b32, bld.def(v1), a, dpp_row_mirror);
+   auto res5 = bld.vop2_e64(aco_opcode::v_add_f32, bld.def(v1), tmp5, b);
+   res5.instr->vop3().clamp = true;
+   writeout(5, res5);
+
+   //! v1: %res6 = v_add_f32 |%a|, %b row_mirror bound_ctrl:1
+   //! p_unit_test 6, %res6
+   auto tmp6 = bld.vop1_dpp(aco_opcode::v_mov_b32, bld.def(v1), a, dpp_row_mirror);
+   tmp6.instr->dpp().neg[0] = true;
+   auto res6 = bld.vop2_e64(aco_opcode::v_add_f32, bld.def(v1), tmp6, b);
+   res6.instr->vop3().abs[0] = true;
+   writeout(6, res6);
+
+   //! v1: %res7 = v_subrev_f32 %a, |%b| row_mirror bound_ctrl:1
+   //! p_unit_test 7, %res7
+   Temp tmp7 = bld.vop1_dpp(aco_opcode::v_mov_b32, bld.def(v1), a, dpp_row_mirror);
+   auto res7 = bld.vop2_e64(aco_opcode::v_sub_f32, bld.def(v1), b, tmp7);
+   res7.instr->vop3().abs[0] = true;
+   writeout(7, res7);
+
+   /* vcc */
+   //! v1: %res8 = v_cndmask_b32 %a, %b, %c:vcc row_mirror bound_ctrl:1
+   //! p_unit_test 8, %res8
+   Temp tmp8 = bld.vop1_dpp(aco_opcode::v_mov_b32, bld.def(v1), a, dpp_row_mirror);
+   Temp res8 = bld.vop2(aco_opcode::v_cndmask_b32, bld.def(v1), tmp8, b, c);
+   writeout(8, res8);
+
+   finish_opt_test();
+END_TEST
+