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brw: Add scoreboard test for edge case involving baked dependency

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This is disable because it is adding a `sync.nop` instead of baking
together both "@3 $0.dst".

Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36096>
This commit is contained in:
Caio Oliveira 2025-07-11 21:37:19 -07:00 • committed by Marge Bot
parent a59e3c6a8b
commit 1e18a2d1a8
1 changed files with 62 additions and 0 deletions
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62
src/intel/compiler/test_lower_scoreboard.cpp
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@ -1143,3 +1143,65 @@ TEST_F(scoreboard_test, scalar_register_mov_grf_is_not_in_scalar_pipe)
EXPECT_SHADERS_MATCH(bld, exp);
}
TEST_F(scoreboard_test, DISABLED_baked_dependency_with_inferred_pipe_combination)
{
brw_builder bld = make_shader();
brw_builder exp = make_shader();
brw_reg *g = vgrf_array(bld, exp, BRW_TYPE_F, 8);
brw_reg x = vgrf(bld, exp, BRW_TYPE_F);
bld.MOV(g[1], brw_imm_f(1.0f));
bld.MOV(g[2], brw_imm_f(2.0f));
bld.MOV(g[5], brw_imm_f(5.0f));
bld.IF();
emit_SEND(bld, x, g[1], g[2]);
bld.ELSE();
emit_SEND(bld, x, g[1], g[2]);
bld.ENDIF();
bld.MAD(g[4], g[5], g[1], x);
EXPECT_PROGRESS(brw_lower_scoreboard, bld);
exp.MOV(g[1], brw_imm_f(1.0f));
exp.MOV(g[2], brw_imm_f(2.0f));
exp.MOV(g[5], brw_imm_f(5.0f));
exp.IF();
emit_SEND(exp, x, g[1], g[2])->sched = SWSB("@3 $0");
exp.ELSE();
emit_SEND(exp, x, g[1], g[2])->sched = SWSB("@3 $0");
exp.ENDIF();
exp.MAD(g[4], g[5], g[1], x)->sched = SWSB("@3 $0.dst");
EXPECT_SHADERS_MATCH(bld, exp);
}
TEST_F(scoreboard_test, DISABLED_math_inv_with_mul_dependency)
{
brw_builder bld = make_shader();
brw_builder exp = make_shader();
brw_reg *g = vgrf_array(bld, exp, BRW_TYPE_F, 8);
brw_reg x = vgrf(bld, exp, BRW_TYPE_F);
bld.MOV(g[1], brw_imm_f(1.0f));
bld.MOV(g[2], brw_imm_f(2.0f));
bld.emit(SHADER_OPCODE_RCP, x, g[1]);
bld.MUL(g[1], g[2], x);
EXPECT_PROGRESS(brw_lower_scoreboard, bld);
exp.MOV(g[1], brw_imm_f(1.0f));
exp.MOV(g[2], brw_imm_f(2.0f));
exp.emit(SHADER_OPCODE_RCP, x, g[1])->sched = SWSB("@2 $0");
exp.MUL(g[1], g[2], x)->sched = SWSB("@1 $0.dst");
EXPECT_SHADERS_MATCH(bld, exp);
}