microsoft/qdk
Publicmirrored from https://github.com/microsoft/qdkAvailable
source/pip/tests/test_adaptive_gpu_bytecode.py
1666lines · modecode
| 1 | # Copyright (c) Microsoft Corporation. |
| 2 | # Licensed under the MIT License. |
| 3 | |
| 4 | """Per-opcode tests for the adaptive GPU bytecode interpreter. |
| 5 | |
| 6 | Each test targets one (or a small family of) bytecode instruction(s) by |
| 7 | supplying hand-written Adaptive Profile QIR that exercises the instruction |
| 8 | and encodes the expected result into a measurement outcome. |
| 9 | |
| 10 | Tests are ordered to match the opcode definitions in ``_adaptive_opcodes.py`` |
| 11 | so that coverage can be verified by reading both files side by side. |
| 12 | |
| 13 | Requires QDK_GPU_TESTS env var and a GPU adapter. |
| 14 | """ |
| 15 | |
| 16 | import os |
| 17 | import sys |
| 18 | from collections import Counter |
| 19 | import pytest |
| 20 | import qsharp.openqasm |
| 21 | |
| 22 | # Skip the whole module when GPU tests aren't requested. |
| 23 | if not os.environ.get("QDK_GPU_TESTS"): |
| 24 | pytest.skip("Skipping GPU tests (QDK_GPU_TESTS not set)", allow_module_level=True) |
| 25 | |
| 26 | SKIP_REASON = "GPU is not available" |
| 27 | GPU_AVAILABLE = False |
| 28 | |
| 29 | try: |
| 30 | from qsharp._native import try_create_gpu_adapter |
| 31 | |
| 32 | gpu_info = try_create_gpu_adapter() |
| 33 | print(f"*** USING GPU: {gpu_info}", file=sys.stderr) |
| 34 | GPU_AVAILABLE = True |
| 35 | except OSError as e: |
| 36 | SKIP_REASON = str(e) |
| 37 | |
| 38 | from qsharp._simulation import GpuSimulator |
| 39 | |
| 40 | # --------------------------------------------------------------------------- |
| 41 | # Helpers |
| 42 | # --------------------------------------------------------------------------- |
| 43 | |
| 44 | # Deterministic programs need a single shot but we run multiple shots |
| 45 | # to verify that multiple shots yield the same result. |
| 46 | SHOTS = 100 |
| 47 | |
| 48 | # Acquiring the GPU resources takes time, so we acquire them once and use them |
| 49 | # for all the tests. This is fine since pytest runs tests sequencially. |
| 50 | sim = GpuSimulator() |
| 51 | |
| 52 | |
| 53 | def _run(qir: str, shots: int = SHOTS, seed: int = 42): |
| 54 | """Run *qir* on the GPU and return the shot_results list.""" |
| 55 | global sim |
| 56 | sim.set_program(qir) |
| 57 | return sim.run_shots(shots, seed=seed) |
| 58 | |
| 59 | |
| 60 | def check_result( |
| 61 | qir_fragment: str, |
| 62 | expected: str, |
| 63 | *, |
| 64 | extra_decls: str = "", |
| 65 | num_qubits: int = 1, |
| 66 | num_results: int = 1, |
| 67 | record=None, |
| 68 | ): |
| 69 | """Assert every shot produces *expected*.""" |
| 70 | qir = format_qir( |
| 71 | qir_fragment, |
| 72 | extra_decls=extra_decls, |
| 73 | num_qubits=num_qubits, |
| 74 | num_results=num_results, |
| 75 | record=record, |
| 76 | ) |
| 77 | results = _run(qir, SHOTS)["shot_results"] |
| 78 | counts = Counter(results) |
| 79 | assert counts == { |
| 80 | expected: SHOTS |
| 81 | }, f"Expected all {SHOTS} shots to be '{expected}', got {counts}" |
| 82 | |
| 83 | |
| 84 | def check_arith_result(qir_fragment: str, expected: str): |
| 85 | body = build_arith_body(qir_fragment) |
| 86 | check_result(body, expected) |
| 87 | |
| 88 | |
| 89 | _DECLS = """\ |
| 90 | declare void @__quantum__qis__x__body(%Qubit*) |
| 91 | declare void @__quantum__qis__h__body(%Qubit*) |
| 92 | declare void @__quantum__qis__mresetz__body(%Qubit*, %Result*) |
| 93 | declare void @__quantum__qis__mz__body(%Qubit*, %Result*) #1 |
| 94 | declare void @__quantum__qis__reset__body(%Qubit*) |
| 95 | declare void @__quantum__qis__cnot__body(%Qubit*, %Qubit*) |
| 96 | declare void @__quantum__qis__z__body(%Qubit*) |
| 97 | declare void @__quantum__qis__s__body(%Qubit*) |
| 98 | declare void @__quantum__qis__t__body(%Qubit*) |
| 99 | declare void @__quantum__qis__cz__body(%Qubit*, %Qubit*) |
| 100 | declare void @__quantum__qis__rz__body(double, %Qubit*) |
| 101 | declare i1 @__quantum__qis__read_result__body(%Result*) |
| 102 | declare void @__quantum__rt__tuple_record_output(i64, i8*) |
| 103 | declare void @__quantum__rt__result_record_output(%Result*, i8*) |
| 104 | declare void @__quantum__rt__initialize(i8*) |
| 105 | """ |
| 106 | |
| 107 | |
| 108 | def format_qir( |
| 109 | body: str, |
| 110 | *, |
| 111 | extra_decls: str = "", |
| 112 | num_qubits: int = 1, |
| 113 | num_results: int = 1, |
| 114 | record=None, |
| 115 | ): |
| 116 | if record is None: |
| 117 | record = range(num_results) |
| 118 | output_recording = ( |
| 119 | f" call void @__quantum__rt__tuple_record_output(i64 {len(record)}, i8* null)" |
| 120 | ) |
| 121 | for result_id in record: |
| 122 | output_recording += f"\n call void @__quantum__rt__result_record_output(%Result* inttoptr (i64 {result_id} to %Result*), i8* null)" |
| 123 | |
| 124 | return f"""\ |
| 125 | %Result = type opaque |
| 126 | %Qubit = type opaque |
| 127 | |
| 128 | define i64 @ENTRYPOINT__main() #0 {{ |
| 129 | {body} |
| 130 | {output_recording} |
| 131 | ret i64 0 |
| 132 | }} |
| 133 | |
| 134 | {_DECLS} |
| 135 | {extra_decls} |
| 136 | attributes #0 = {{ "entry_point" "qir_profiles"="adaptive_profile" "required_num_qubits"="{num_qubits}" "required_num_results"="{num_results}" }} |
| 137 | attributes #1 = {{ "irreversible" }} |
| 138 | """ |
| 139 | |
| 140 | |
| 141 | def build_arith_body( |
| 142 | arith_fragment: str, |
| 143 | ): |
| 144 | """Builds the body for a QIR module that does classical work and |
| 145 | then conditionally applies X to qubit 0 before measuring into result 0. |
| 146 | |
| 147 | *arith_fragment* should produce ``%flag`` (i1) which, when true, causes X. |
| 148 | The measurement of qubit 0 into result 0 is the observable. |
| 149 | """ |
| 150 | return f"""\ |
| 151 | entry: |
| 152 | {arith_fragment} |
| 153 | br i1 %flag, label %then, label %end |
| 154 | then: |
| 155 | call void @__quantum__qis__x__body(%Qubit* inttoptr (i64 0 to %Qubit*)) |
| 156 | br label %end |
| 157 | end: |
| 158 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 0 to %Result*)) |
| 159 | """ |
| 160 | |
| 161 | |
| 162 | # ######################################################################### |
| 163 | # Control Flow |
| 164 | # ######################################################################### |
| 165 | |
| 166 | |
| 167 | # ========================================================================= |
| 168 | # OP_NOP — no-op |
| 169 | # ========================================================================= |
| 170 | |
| 171 | # NOP is not directly emittable from QIR, but we confirm basic program works. |
| 172 | # Covered implicitly by every test above. A separate "smoke" is still nice: |
| 173 | NOP_SMOKE_QIR = """ |
| 174 | entry: |
| 175 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 0 to %Result*)) |
| 176 | """ |
| 177 | |
| 178 | |
| 179 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 180 | def test_nop_smoke(): |
| 181 | """Minimal program: just measure |0⟩ → always 0.""" |
| 182 | check_result(NOP_SMOKE_QIR, "0") |
| 183 | |
| 184 | |
| 185 | # ========================================================================= |
| 186 | # OP_RET — return / program termination |
| 187 | # ========================================================================= |
| 188 | |
| 189 | # Every test already exercises RET implicitly. This tests an explicit early ret. |
| 190 | RET_QIR = """ |
| 191 | entry: |
| 192 | ret i64 0 |
| 193 | call void @__quantum__qis__x__body(%Qubit* inttoptr (i64 0 to %Qubit*)) |
| 194 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 0 to %Result*)) |
| 195 | """ |
| 196 | |
| 197 | |
| 198 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 199 | def test_ret(): |
| 200 | check_result(RET_QIR, "0") |
| 201 | |
| 202 | |
| 203 | # ========================================================================= |
| 204 | # OP_JUMP — unconditional jump |
| 205 | # ========================================================================= |
| 206 | |
| 207 | JUMP_QIR = """ |
| 208 | entry: |
| 209 | br label %target |
| 210 | ret i64 0 ; early return - unreachable |
| 211 | target: |
| 212 | call void @__quantum__qis__x__body(%Qubit* inttoptr (i64 0 to %Qubit*)) |
| 213 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 0 to %Result*)) |
| 214 | """ |
| 215 | |
| 216 | |
| 217 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 218 | def test_jump(): |
| 219 | """Unconditional jump lands at target block, X applied → measure 1.""" |
| 220 | check_result(JUMP_QIR, "1") |
| 221 | |
| 222 | |
| 223 | # ========================================================================= |
| 224 | # OP_BRANCH — conditional branch |
| 225 | # ========================================================================= |
| 226 | |
| 227 | BRANCH_TRUE_QIR = """ |
| 228 | entry: |
| 229 | %c = icmp eq i64 1, 1 |
| 230 | br i1 %c, label %yes, label %no |
| 231 | ret i64 0 ; early return - unreachable |
| 232 | yes: |
| 233 | call void @__quantum__qis__x__body(%Qubit* inttoptr (i64 0 to %Qubit*)) |
| 234 | br label %measure |
| 235 | no: |
| 236 | br label %measure |
| 237 | measure: |
| 238 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 0 to %Result*)) |
| 239 | """ |
| 240 | |
| 241 | BRANCH_FALSE_QIR = """ |
| 242 | entry: |
| 243 | %c = icmp eq i64 1, 2 |
| 244 | br i1 %c, label %yes, label %no |
| 245 | ret i64 0 ; early return - unreachable |
| 246 | yes: |
| 247 | call void @__quantum__qis__x__body(%Qubit* inttoptr (i64 0 to %Qubit*)) |
| 248 | br label %measure |
| 249 | no: |
| 250 | br label %measure |
| 251 | measure: |
| 252 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 0 to %Result*)) |
| 253 | """ |
| 254 | |
| 255 | |
| 256 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 257 | def test_branch_true(): |
| 258 | check_result(BRANCH_TRUE_QIR, "1") |
| 259 | |
| 260 | |
| 261 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 262 | def test_branch_false(): |
| 263 | check_result(BRANCH_FALSE_QIR, "0") |
| 264 | |
| 265 | |
| 266 | # ========================================================================= |
| 267 | # OP_SWITCH — switch dispatch |
| 268 | # ========================================================================= |
| 269 | |
| 270 | SWITCH_CASE1_QIR = """ |
| 271 | entry: |
| 272 | %val = add i64 0, 1 |
| 273 | switch i64 %val, label %default [ |
| 274 | i64 0, label %case0 |
| 275 | i64 1, label %case1 |
| 276 | i64 2, label %case2 |
| 277 | ] |
| 278 | case0: |
| 279 | br label %measure |
| 280 | case1: |
| 281 | ; This is the expected path for val==1 |
| 282 | call void @__quantum__qis__x__body(%Qubit* inttoptr (i64 0 to %Qubit*)) |
| 283 | br label %measure |
| 284 | case2: |
| 285 | br label %measure |
| 286 | default: |
| 287 | br label %measure |
| 288 | measure: |
| 289 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 0 to %Result*)) |
| 290 | """ |
| 291 | |
| 292 | SWITCH_DEFAULT_QIR = """ |
| 293 | entry: |
| 294 | %val = add i64 0, 99 |
| 295 | switch i64 %val, label %default [ |
| 296 | i64 0, label %case0 |
| 297 | i64 1, label %case1 |
| 298 | ] |
| 299 | case0: |
| 300 | br label %measure |
| 301 | case1: |
| 302 | br label %measure |
| 303 | default: |
| 304 | ; val=99 takes default path → X applied |
| 305 | call void @__quantum__qis__x__body(%Qubit* inttoptr (i64 0 to %Qubit*)) |
| 306 | br label %measure |
| 307 | measure: |
| 308 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 0 to %Result*)) |
| 309 | """ |
| 310 | |
| 311 | |
| 312 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 313 | def test_switch_case(): |
| 314 | check_result(SWITCH_CASE1_QIR, "1") |
| 315 | |
| 316 | |
| 317 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 318 | def test_switch_default(): |
| 319 | check_result(SWITCH_DEFAULT_QIR, "1") |
| 320 | |
| 321 | |
| 322 | # ========================================================================= |
| 323 | # OP_CALL / OP_CALL_RETURN — function calls |
| 324 | # ========================================================================= |
| 325 | |
| 326 | CALL_QIR = """ |
| 327 | entry: |
| 328 | call void @apply_x(%Qubit* inttoptr (i64 0 to %Qubit*)) |
| 329 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 0 to %Result*)) |
| 330 | """ |
| 331 | |
| 332 | CALL_QIR_FN = """ |
| 333 | define void @apply_x(%Qubit* %q) { |
| 334 | entry: |
| 335 | call void @__quantum__qis__x__body(%Qubit* %q) |
| 336 | ret void |
| 337 | } |
| 338 | """ |
| 339 | |
| 340 | |
| 341 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 342 | def test_call_and_return(): |
| 343 | """Call a helper function that applies X, then measure.""" |
| 344 | check_result(CALL_QIR, "1", extra_decls=CALL_QIR_FN) |
| 345 | |
| 346 | |
| 347 | # ######################################################################### |
| 348 | # Quantum |
| 349 | # ######################################################################### |
| 350 | |
| 351 | |
| 352 | # ========================================================================= |
| 353 | # OP_QUANTUM_GATE — single and two-qubit gates |
| 354 | # ========================================================================= |
| 355 | |
| 356 | # X gate: |0⟩ → |1⟩ |
| 357 | GATE_X_QIR = """ |
| 358 | entry: |
| 359 | call void @__quantum__qis__x__body(%Qubit* inttoptr (i64 0 to %Qubit*)) |
| 360 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 0 to %Result*)) |
| 361 | """ |
| 362 | |
| 363 | # CNOT gate: |10⟩ → |11⟩ |
| 364 | GATE_CNOT_QIR = """ |
| 365 | entry: |
| 366 | call void @__quantum__qis__x__body(%Qubit* inttoptr (i64 0 to %Qubit*)) |
| 367 | call void @__quantum__qis__cnot__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Qubit* inttoptr (i64 1 to %Qubit*)) |
| 368 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 1 to %Qubit*), %Result* inttoptr (i64 0 to %Result*)) |
| 369 | """ |
| 370 | |
| 371 | |
| 372 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 373 | def test_gate_x(): |
| 374 | check_result(GATE_X_QIR, "1") |
| 375 | |
| 376 | |
| 377 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 378 | def test_gate_cnot(): |
| 379 | check_result(GATE_CNOT_QIR, "1", num_qubits=2) |
| 380 | |
| 381 | |
| 382 | # ========================================================================= |
| 383 | # OP_MEASURE — measurement (also see OP_READ_RESULT below) |
| 384 | # ========================================================================= |
| 385 | |
| 386 | # OP_MEASURE is exercised in nearly every test via mresetz. This test |
| 387 | # explicitly uses mz (non-resetting measurement) + separate reset. |
| 388 | MZ_THEN_RESET_QIR = """ |
| 389 | entry: |
| 390 | call void @__quantum__qis__x__body(%Qubit* inttoptr (i64 0 to %Qubit*)) |
| 391 | call void @__quantum__qis__mz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 0 to %Result*)) |
| 392 | ; After mz, qubit should still be |1⟩ |
| 393 | call void @__quantum__qis__mz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 1 to %Result*)) |
| 394 | call void @__quantum__qis__reset__body(%Qubit* inttoptr (i64 0 to %Qubit*)) |
| 395 | ; After reset, qubit should be |0⟩ |
| 396 | call void @__quantum__qis__mz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 2 to %Result*)) |
| 397 | """ |
| 398 | |
| 399 | |
| 400 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 401 | def test_mz_then_reset(): |
| 402 | "X → MZ → MZ → reset should give 110." |
| 403 | check_result(MZ_THEN_RESET_QIR, "110", num_results=3) |
| 404 | |
| 405 | |
| 406 | # ========================================================================= |
| 407 | # OP_RESET — qubit reset |
| 408 | # ========================================================================= |
| 409 | |
| 410 | RESET_QIR = """ |
| 411 | entry: |
| 412 | ; Put qubit 0 in |1⟩ |
| 413 | call void @__quantum__qis__x__body(%Qubit* inttoptr (i64 0 to %Qubit*)) |
| 414 | ; Reset it back to |0⟩ |
| 415 | call void @__quantum__qis__reset__body(%Qubit* inttoptr (i64 0 to %Qubit*)) |
| 416 | ; Measure — should be 0 |
| 417 | call void @__quantum__qis__mz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 0 to %Result*)) |
| 418 | """ |
| 419 | |
| 420 | |
| 421 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 422 | def test_reset(): |
| 423 | """X → reset → measure should give 0.""" |
| 424 | check_result(RESET_QIR, "0") |
| 425 | |
| 426 | |
| 427 | # ========================================================================= |
| 428 | # OP_READ_RESULT + OP_MEASURE — read measurement results |
| 429 | # ========================================================================= |
| 430 | |
| 431 | READ_RESULT_QIR = """ |
| 432 | entry: |
| 433 | ; Prepare |1⟩ on qubit 0 via X |
| 434 | call void @__quantum__qis__x__body(%Qubit* inttoptr (i64 0 to %Qubit*)) |
| 435 | ; Measure qubit 0 → should always be 1 |
| 436 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 0 to %Result*)) |
| 437 | ; Read back the result |
| 438 | %r = call i1 @__quantum__qis__read_result__body(%Result* inttoptr (i64 0 to %Result*)) |
| 439 | ; If result was 1, apply X again so qubit is back in |1⟩ for second measurement |
| 440 | br i1 %r, label %then, label %end |
| 441 | |
| 442 | then: |
| 443 | call void @__quantum__qis__x__body(%Qubit* inttoptr (i64 0 to %Qubit*)) |
| 444 | br label %end |
| 445 | |
| 446 | end: |
| 447 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 1 to %Result*)) |
| 448 | """ |
| 449 | |
| 450 | |
| 451 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 452 | def test_read_result(): |
| 453 | """X → MResetZ → read_result → if 1: X again → MResetZ. |
| 454 | First result is always 1, read_result sees it, applies X, second result is also 1. |
| 455 | """ |
| 456 | check_result(READ_RESULT_QIR, "11", num_results=2) |
| 457 | |
| 458 | |
| 459 | # ========================================================================= |
| 460 | # OP_RECORD_OUTPUT — output recording |
| 461 | # ========================================================================= |
| 462 | |
| 463 | # Explicitly test recording two results in order. |
| 464 | RECORD_OUTPUT_QIR = """ |
| 465 | entry: |
| 466 | ; q0 = |1⟩, q1 = |0⟩ |
| 467 | call void @__quantum__qis__x__body(%Qubit* inttoptr (i64 0 to %Qubit*)) |
| 468 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 0 to %Result*)) |
| 469 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 1 to %Qubit*), %Result* inttoptr (i64 1 to %Result*)) |
| 470 | """ |
| 471 | |
| 472 | |
| 473 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 474 | def test_record_output_ordering(): |
| 475 | """Two results recorded: result0=1, result1=0 → '10'.""" |
| 476 | check_result(RECORD_OUTPUT_QIR, "10", num_qubits=2, num_results=2) |
| 477 | |
| 478 | |
| 479 | # ######################################################################### |
| 480 | # Integer Arithmetic |
| 481 | # ######################################################################### |
| 482 | |
| 483 | INT_ARITH_PARAMS = [ |
| 484 | # Int |
| 485 | ("add", 3, 4, 7), |
| 486 | ("sub", 10, 3, 7), |
| 487 | ("sub", 3, 10, -7), |
| 488 | ("mul", 6, 7, 42), |
| 489 | ("udiv", 42, 7, 6), |
| 490 | ("sdiv", -42, 7, -6), |
| 491 | ("urem", 10, 3, 1), |
| 492 | ("srem", -10, 3, -1), |
| 493 | # Bitwise |
| 494 | ("and", 255, 15, 15), |
| 495 | ("or", 240, 15, 255), |
| 496 | ("xor", 255, 15, 240), |
| 497 | ("shl", 1, 3, 8), |
| 498 | ("lshr", 32, 2, 8), |
| 499 | ("ashr", -16, 2, -4), |
| 500 | ] |
| 501 | |
| 502 | |
| 503 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 504 | @pytest.mark.parametrize( |
| 505 | "bin_op,lhs,rhs,expected", |
| 506 | INT_ARITH_PARAMS, |
| 507 | ) |
| 508 | def test_int_arith_imm_imm(bin_op, lhs, rhs, expected): |
| 509 | check_arith_result( |
| 510 | f""" |
| 511 | %a = {bin_op} i64 {lhs}, {rhs} |
| 512 | %flag = icmp eq i64 %a, {expected}""", |
| 513 | "1", |
| 514 | ) |
| 515 | |
| 516 | |
| 517 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 518 | @pytest.mark.parametrize( |
| 519 | "bin_op,lhs,rhs,expected", |
| 520 | INT_ARITH_PARAMS, |
| 521 | ) |
| 522 | def test_int_arith_imm_reg(bin_op, lhs, rhs, expected): |
| 523 | check_arith_result( |
| 524 | f""" |
| 525 | %rhs = add i64 {rhs}, 0 |
| 526 | %a = {bin_op} i64 {lhs}, %rhs |
| 527 | %flag = icmp eq i64 %a, {expected}""", |
| 528 | "1", |
| 529 | ) |
| 530 | |
| 531 | |
| 532 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 533 | @pytest.mark.parametrize( |
| 534 | "bin_op,lhs,rhs,expected", |
| 535 | INT_ARITH_PARAMS, |
| 536 | ) |
| 537 | def test_int_arith_reg_imm(bin_op, lhs, rhs, expected): |
| 538 | check_arith_result( |
| 539 | f""" |
| 540 | %lhs = add i64 {lhs}, 0 |
| 541 | %a = {bin_op} i64 %lhs, {rhs} |
| 542 | %flag = icmp eq i64 %a, {expected}""", |
| 543 | "1", |
| 544 | ) |
| 545 | |
| 546 | |
| 547 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 548 | @pytest.mark.parametrize( |
| 549 | "bin_op,lhs,rhs,expected", |
| 550 | INT_ARITH_PARAMS, |
| 551 | ) |
| 552 | def test_int_arith_reg_reg(bin_op, lhs, rhs, expected): |
| 553 | check_arith_result( |
| 554 | f""" |
| 555 | %lhs = add i64 {lhs}, 0 |
| 556 | %rhs = add i64 {rhs}, 0 |
| 557 | %a = {bin_op} i64 %lhs, %rhs |
| 558 | %flag = icmp eq i64 %a, {expected}""", |
| 559 | "1", |
| 560 | ) |
| 561 | |
| 562 | |
| 563 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 564 | @pytest.mark.parametrize( |
| 565 | "bin_op,lhs,rhs,expected", |
| 566 | INT_ARITH_PARAMS, |
| 567 | ) |
| 568 | def test_int_arith_negative_test(bin_op, lhs, rhs, expected): |
| 569 | """Checks that the tests fail if the result is different from the expected value.""" |
| 570 | # Override the expected value. |
| 571 | expected = 12345 |
| 572 | check_arith_result( |
| 573 | f""" |
| 574 | %a = {bin_op} i64 {lhs}, {rhs} |
| 575 | %flag = icmp eq i64 %a, {expected}""", |
| 576 | "0", |
| 577 | ) |
| 578 | |
| 579 | |
| 580 | # ######################################################################### |
| 581 | # Comparison (OP_ICMP, OP_FCMP) |
| 582 | # ######################################################################### |
| 583 | |
| 584 | |
| 585 | # ========================================================================= |
| 586 | # OP_ICMP — integer comparison (all condition codes) |
| 587 | # ========================================================================= |
| 588 | |
| 589 | |
| 590 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 591 | @pytest.mark.parametrize( |
| 592 | "pred,lhs,rhs,expected", |
| 593 | [ |
| 594 | ("eq", 2, 2, "1"), |
| 595 | ("eq", 2, 3, "0"), |
| 596 | ("ne", 2, 3, "1"), |
| 597 | ("ne", 2, 2, "0"), |
| 598 | ("slt", 2, 3, "1"), |
| 599 | ("slt", 2, 2, "0"), |
| 600 | ("sle", 2, 2, "1"), |
| 601 | ("sle", 3, 2, "0"), |
| 602 | ("sgt", 3, 2, "1"), |
| 603 | ("sgt", 2, 3, "0"), |
| 604 | ("sge", 3, 3, "1"), |
| 605 | ("sge", 2, 3, "0"), |
| 606 | ("ult", 2, 3, "1"), |
| 607 | ("ult", 3, 2, "0"), |
| 608 | ("ule", 3, 3, "1"), |
| 609 | ("ule", 3, 2, "0"), |
| 610 | ("ugt", 3, 2, "1"), |
| 611 | ("ugt", 2, 3, "0"), |
| 612 | ("uge", 3, 3, "1"), |
| 613 | ("uge", 2, 3, "0"), |
| 614 | ], |
| 615 | ) |
| 616 | def test_icmp(pred, lhs, rhs, expected): |
| 617 | check_arith_result( |
| 618 | f"%flag = icmp {pred} i64 {lhs}, {rhs}", |
| 619 | expected, |
| 620 | ) |
| 621 | |
| 622 | |
| 623 | # ========================================================================= |
| 624 | # OP_ICMP — signed vs unsigned edge case (negative as unsigned) |
| 625 | # ========================================================================= |
| 626 | |
| 627 | ICMP_SIGNED_VS_UNSIGNED_QIR = """ |
| 628 | ; -1 in two's complement is 0xFFFFFFFFFFFFFFFF, which is the max u64 |
| 629 | ; signed: -1 < 0 → true |
| 630 | %neg1 = sub i64 0, 1 |
| 631 | %flag = icmp slt i64 %neg1, 0 |
| 632 | """ |
| 633 | |
| 634 | ICMP_UNSIGNED_WRAP_QIR = """ |
| 635 | ; unsigned: -1 wraps to max u64, so -1 > 0 → true (unsigned) |
| 636 | %neg1 = sub i64 0, 1 |
| 637 | %flag = icmp ugt i64 %neg1, 0 |
| 638 | """ |
| 639 | |
| 640 | |
| 641 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 642 | def test_icmp_signed_negative(): |
| 643 | check_arith_result(ICMP_SIGNED_VS_UNSIGNED_QIR, "1") |
| 644 | |
| 645 | |
| 646 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 647 | def test_icmp_unsigned_wrap(): |
| 648 | check_arith_result(ICMP_UNSIGNED_WRAP_QIR, "1") |
| 649 | |
| 650 | |
| 651 | # ========================================================================= |
| 652 | # OP_FCMP — float comparison |
| 653 | # ========================================================================= |
| 654 | |
| 655 | |
| 656 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 657 | @pytest.mark.parametrize( |
| 658 | "pred,lhs,rhs,expected", |
| 659 | [ |
| 660 | ("oeq", "3.0", "3.0", "1"), |
| 661 | ("oeq", "3.0", "4.0", "0"), |
| 662 | ("one", "3.0", "4.0", "1"), |
| 663 | ("one", "3.0", "3.0", "0"), |
| 664 | ("olt", "2.0", "3.0", "1"), |
| 665 | ("olt", "3.0", "2.0", "0"), |
| 666 | ("ole", "3.0", "3.0", "1"), |
| 667 | ("ole", "4.0", "3.0", "0"), |
| 668 | ("ogt", "4.0", "3.0", "1"), |
| 669 | ("ogt", "3.0", "4.0", "0"), |
| 670 | ("oge", "3.0", "3.0", "1"), |
| 671 | ("oge", "2.0", "3.0", "0"), |
| 672 | ], |
| 673 | ) |
| 674 | def test_fcmp(pred, lhs, rhs, expected): |
| 675 | check_arith_result( |
| 676 | f"%flag = fcmp {pred} double {lhs}, {rhs}", |
| 677 | expected, |
| 678 | ) |
| 679 | |
| 680 | |
| 681 | # ######################################################################### |
| 682 | # Float Arithmetic (OP_FADD → OP_FDIV) |
| 683 | # ######################################################################### |
| 684 | |
| 685 | FLOAT_ARITH_PARAMS = [ |
| 686 | ("fadd", 1.5, 2.5, 4.0), |
| 687 | ("fsub", 10.0, 3.0, 7.0), |
| 688 | ("fsub", 3.0, 10.0, -7.0), |
| 689 | ("fmul", 6.0, 7.0, 42.0), |
| 690 | ("fdiv", 8.0, 2.0, 4.0), |
| 691 | ] |
| 692 | |
| 693 | |
| 694 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 695 | @pytest.mark.parametrize( |
| 696 | "bin_op,lhs,rhs,expected", |
| 697 | FLOAT_ARITH_PARAMS, |
| 698 | ) |
| 699 | def test_float_arith_imm_imm(bin_op, lhs, rhs, expected): |
| 700 | check_arith_result( |
| 701 | f""" |
| 702 | %a = {bin_op} double {lhs}, {rhs} |
| 703 | %flag = fcmp oeq double %a, {expected}""", |
| 704 | "1", |
| 705 | ) |
| 706 | |
| 707 | |
| 708 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 709 | @pytest.mark.parametrize( |
| 710 | "bin_op,lhs,rhs,expected", |
| 711 | FLOAT_ARITH_PARAMS, |
| 712 | ) |
| 713 | def test_float_arith_imm_reg(bin_op, lhs, rhs, expected): |
| 714 | check_arith_result( |
| 715 | f""" |
| 716 | %rhs = fadd double {rhs}, 0.0 |
| 717 | %a = {bin_op} double {lhs}, %rhs |
| 718 | %flag = fcmp oeq double %a, {expected}""", |
| 719 | "1", |
| 720 | ) |
| 721 | |
| 722 | |
| 723 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 724 | @pytest.mark.parametrize( |
| 725 | "bin_op,lhs,rhs,expected", |
| 726 | FLOAT_ARITH_PARAMS, |
| 727 | ) |
| 728 | def test_float_arith_reg_imm(bin_op, lhs, rhs, expected): |
| 729 | check_arith_result( |
| 730 | f""" |
| 731 | %lhs = fadd double {lhs}, 0.0 |
| 732 | %a = {bin_op} double %lhs, {rhs} |
| 733 | %flag = fcmp oeq double %a, {expected}""", |
| 734 | "1", |
| 735 | ) |
| 736 | |
| 737 | |
| 738 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 739 | @pytest.mark.parametrize( |
| 740 | "bin_op,lhs,rhs,expected", |
| 741 | FLOAT_ARITH_PARAMS, |
| 742 | ) |
| 743 | def test_float_arith_reg_reg(bin_op, lhs, rhs, expected): |
| 744 | check_arith_result( |
| 745 | f""" |
| 746 | %lhs = fadd double {lhs}, 0.0 |
| 747 | %rhs = fadd double {rhs}, 0.0 |
| 748 | %a = {bin_op} double %lhs, %rhs |
| 749 | %flag = fcmp oeq double %a, {expected}""", |
| 750 | "1", |
| 751 | ) |
| 752 | |
| 753 | |
| 754 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 755 | @pytest.mark.parametrize( |
| 756 | "bin_op,lhs,rhs,expected", |
| 757 | FLOAT_ARITH_PARAMS, |
| 758 | ) |
| 759 | def test_float_arith_negative_test(bin_op, lhs, rhs, expected): |
| 760 | """Checks that the tests fail if the result is different from the expected value.""" |
| 761 | # Override the expected value. |
| 762 | expected = 12345.0 |
| 763 | check_arith_result( |
| 764 | f""" |
| 765 | %a = {bin_op} double {lhs}, {rhs} |
| 766 | %flag = fcmp oeq double %a, {expected}""", |
| 767 | "0", |
| 768 | ) |
| 769 | |
| 770 | |
| 771 | # ######################################################################### |
| 772 | # Type Conversion (OP_ZEXT → OP_SITOFP) |
| 773 | # ######################################################################### |
| 774 | |
| 775 | |
| 776 | # ========================================================================= |
| 777 | # OP_ZEXT — zero extension |
| 778 | # ========================================================================= |
| 779 | |
| 780 | ZEXT_QIR = """ |
| 781 | ; zext i1 true to i64 → 1, check 1 == 1 → true |
| 782 | %z = zext i1 true to i64 |
| 783 | %flag = icmp eq i64 %z, 1 |
| 784 | """ |
| 785 | |
| 786 | |
| 787 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 788 | def test_zext(): |
| 789 | check_arith_result(ZEXT_QIR, "1") |
| 790 | |
| 791 | |
| 792 | # ========================================================================= |
| 793 | # OP_SEXT — sign extension |
| 794 | # ========================================================================= |
| 795 | |
| 796 | SEXT_QIR = """ |
| 797 | ; sext i1 true to i64 → -1 (all ones), check -1 < 0 → true |
| 798 | %s = sext i1 true to i64 |
| 799 | %flag = icmp slt i64 %s, 0 |
| 800 | """ |
| 801 | |
| 802 | |
| 803 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 804 | def test_sext(): |
| 805 | check_arith_result(SEXT_QIR, "1") |
| 806 | |
| 807 | |
| 808 | # ========================================================================= |
| 809 | # OP_TRUNC — truncation |
| 810 | # ========================================================================= |
| 811 | |
| 812 | TRUNC_QIR = """ |
| 813 | ; trunc i64 257 to i32 → 257 (fits), check 257 == 257 → true |
| 814 | %t = trunc i64 257 to i32 |
| 815 | %z = zext i32 %t to i64 |
| 816 | %flag = icmp eq i64 %z, 257 |
| 817 | """ |
| 818 | |
| 819 | |
| 820 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 821 | def test_trunc(): |
| 822 | check_arith_result(TRUNC_QIR, "1") |
| 823 | |
| 824 | |
| 825 | # ========================================================================= |
| 826 | # OP_FPEXT / OP_FPTRUNC — float extension/truncation |
| 827 | # (identity on GPU since everything is f32) |
| 828 | # ========================================================================= |
| 829 | |
| 830 | FPEXT_QIR = """ |
| 831 | ; fpext float 3.0 to double, then check == 3 |
| 832 | %f32 = fadd float 1.0, 2.0 |
| 833 | %f64 = fpext float %f32 to double |
| 834 | %i = fptosi double %f64 to i64 |
| 835 | %flag = icmp eq i64 %i, 3 |
| 836 | """ |
| 837 | |
| 838 | |
| 839 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 840 | def test_fpext(): |
| 841 | check_arith_result(FPEXT_QIR, "1") |
| 842 | |
| 843 | |
| 844 | # ========================================================================= |
| 845 | # OP_INTTOPTR / OP_MOV — dynamic qubit addressing |
| 846 | # ========================================================================= |
| 847 | |
| 848 | # inttoptr is used when qubit IDs come from computations rather than literals. |
| 849 | # Compute qubit index from arithmetic, then apply X via inttoptr. |
| 850 | INTTOPTR_QIR = """ |
| 851 | entry: |
| 852 | ; Compute qubit ID 0 from arithmetic |
| 853 | %q_id = sub i64 1, 1 |
| 854 | %q = inttoptr i64 %q_id to %Qubit* |
| 855 | call void @__quantum__qis__x__body(%Qubit* %q) |
| 856 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 0 to %Result*)) |
| 857 | """ |
| 858 | |
| 859 | |
| 860 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 861 | def test_inttoptr_dynamic_qubit(): |
| 862 | check_result(INTTOPTR_QIR, "1") |
| 863 | |
| 864 | |
| 865 | # ========================================================================= |
| 866 | # OP_FPTOSI — float to signed int |
| 867 | # ========================================================================= |
| 868 | |
| 869 | FPTOSI_QIR = """ |
| 870 | ; fptosi -3.7 → -3 (truncation toward zero), check -3 < 0 → true |
| 871 | %neg = fsub double 0.0, 3.7 |
| 872 | %i = fptosi double %neg to i64 |
| 873 | %flag = icmp slt i64 %i, 0 |
| 874 | """ |
| 875 | |
| 876 | |
| 877 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 878 | def test_fptosi(): |
| 879 | check_arith_result(FPTOSI_QIR, "1") |
| 880 | |
| 881 | |
| 882 | # ========================================================================= |
| 883 | # OP_SITOFP — signed int to float |
| 884 | # ========================================================================= |
| 885 | |
| 886 | SITOFP_QIR = """ |
| 887 | ; sitofp -5 → -5.0, then -5.0 < 0.0 → true |
| 888 | %neg5 = sub i64 0, 5 |
| 889 | %f = sitofp i64 %neg5 to double |
| 890 | %zero = sitofp i64 0 to double |
| 891 | %flag = fcmp olt double %f, %zero |
| 892 | """ |
| 893 | |
| 894 | |
| 895 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 896 | def test_sitofp(): |
| 897 | check_arith_result(SITOFP_QIR, "1") |
| 898 | |
| 899 | |
| 900 | # ######################################################################### |
| 901 | # SSA / Data Movement (OP_PHI → OP_CONST) |
| 902 | # ######################################################################### |
| 903 | |
| 904 | |
| 905 | # ========================================================================= |
| 906 | # OP_PHI — phi node |
| 907 | # ========================================================================= |
| 908 | |
| 909 | # Classic loop counter: phi selects 0 from entry, incremented value from loop. |
| 910 | # Loops 5 times, then checks counter == 5 → X → measure 1. |
| 911 | PHI_LOOP_QIR = """ |
| 912 | entry: |
| 913 | br label %loop |
| 914 | |
| 915 | loop: |
| 916 | %i = phi i64 [ 0, %entry ], [ %next, %loop ] |
| 917 | %next = add i64 %i, 1 |
| 918 | %cond = icmp slt i64 %next, 5 |
| 919 | br i1 %cond, label %loop, label %done |
| 920 | |
| 921 | done: |
| 922 | ; %next should be 5 here |
| 923 | %flag = icmp eq i64 %next, 5 |
| 924 | br i1 %flag, label %apply_x, label %measure |
| 925 | |
| 926 | apply_x: |
| 927 | call void @__quantum__qis__x__body(%Qubit* inttoptr (i64 0 to %Qubit*)) |
| 928 | br label %measure |
| 929 | |
| 930 | measure: |
| 931 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 0 to %Result*)) |
| 932 | """ |
| 933 | |
| 934 | |
| 935 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 936 | def test_phi_loop_counter(): |
| 937 | check_result(PHI_LOOP_QIR, "1") |
| 938 | |
| 939 | |
| 940 | # ========================================================================= |
| 941 | # OP_SELECT |
| 942 | # ========================================================================= |
| 943 | |
| 944 | SELECT_TRUE_QIR = """ |
| 945 | ; select i1 true, i64 1, i64 0 → 1, then icmp eq 1, 1 → true |
| 946 | %s = select i1 true, i64 1, i64 0 |
| 947 | %flag = icmp eq i64 %s, 1 |
| 948 | """ |
| 949 | |
| 950 | SELECT_FALSE_QIR = """ |
| 951 | ; select i1 false, i64 1, i64 0 → 0, then icmp eq 0, 0 → true |
| 952 | %s = select i1 false, i64 1, i64 0 |
| 953 | %flag = icmp eq i64 %s, 0 |
| 954 | """ |
| 955 | |
| 956 | |
| 957 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 958 | def test_select_true(): |
| 959 | check_arith_result(SELECT_TRUE_QIR, "1") |
| 960 | |
| 961 | |
| 962 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 963 | def test_select_false(): |
| 964 | check_arith_result(SELECT_FALSE_QIR, "1") |
| 965 | |
| 966 | |
| 967 | # ========================================================================= |
| 968 | # OP_CONST — constant materialization |
| 969 | # ========================================================================= |
| 970 | |
| 971 | # Constants are exercised in nearly every test (immediates in icmp, add, etc.) |
| 972 | # This explicitly tests a large constant going through the pipeline. |
| 973 | CONST_QIR = """ |
| 974 | ; Use a specific constant 12345, check add identity |
| 975 | %a = add i64 12345, 0 |
| 976 | %flag = icmp eq i64 %a, 12345 |
| 977 | """ |
| 978 | |
| 979 | |
| 980 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 981 | def test_const(): |
| 982 | check_arith_result(CONST_QIR, "1") |
| 983 | |
| 984 | |
| 985 | # ######################################################################### |
| 986 | # Boolean (i1) variants of bitwise ops |
| 987 | # ######################################################################### |
| 988 | |
| 989 | |
| 990 | # ========================================================================= |
| 991 | # OP_AND with i1 (boolean AND) — used in classical boolean logic |
| 992 | # ========================================================================= |
| 993 | |
| 994 | AND_I1_QIR = """ |
| 995 | entry: |
| 996 | ; Prepare both qubits in |1⟩ deterministically |
| 997 | call void @__quantum__qis__x__body(%Qubit* inttoptr (i64 0 to %Qubit*)) |
| 998 | call void @__quantum__qis__x__body(%Qubit* inttoptr (i64 1 to %Qubit*)) |
| 999 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 0 to %Result*)) |
| 1000 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 1 to %Qubit*), %Result* inttoptr (i64 1 to %Result*)) |
| 1001 | %r0 = call i1 @__quantum__qis__read_result__body(%Result* inttoptr (i64 0 to %Result*)) |
| 1002 | %r1 = call i1 @__quantum__qis__read_result__body(%Result* inttoptr (i64 1 to %Result*)) |
| 1003 | %both = and i1 %r0, %r1 |
| 1004 | ; both should be true (1 AND 1 = 1), apply X → measure 1 |
| 1005 | br i1 %both, label %then, label %measure |
| 1006 | |
| 1007 | then: |
| 1008 | call void @__quantum__qis__x__body(%Qubit* inttoptr (i64 0 to %Qubit*)) |
| 1009 | br label %measure |
| 1010 | |
| 1011 | measure: |
| 1012 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 2 to %Result*)) |
| 1013 | """ |
| 1014 | |
| 1015 | |
| 1016 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 1017 | def test_and_i1_boolean(): |
| 1018 | """Deterministic boolean AND: both qubits |1⟩ → and i1 true, true → X → 1.""" |
| 1019 | check_result(AND_I1_QIR, "1", num_qubits=2, num_results=3, record=[2]) |
| 1020 | |
| 1021 | |
| 1022 | # ========================================================================= |
| 1023 | # OP_OR with i1 (boolean OR) |
| 1024 | # ========================================================================= |
| 1025 | |
| 1026 | OR_I1_QIR = """ |
| 1027 | entry: |
| 1028 | ; q0 = |1⟩, q1 = |0⟩ |
| 1029 | call void @__quantum__qis__x__body(%Qubit* inttoptr (i64 0 to %Qubit*)) |
| 1030 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 0 to %Result*)) |
| 1031 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 1 to %Qubit*), %Result* inttoptr (i64 1 to %Result*)) |
| 1032 | %r0 = call i1 @__quantum__qis__read_result__body(%Result* inttoptr (i64 0 to %Result*)) |
| 1033 | %r1 = call i1 @__quantum__qis__read_result__body(%Result* inttoptr (i64 1 to %Result*)) |
| 1034 | %either = or i1 %r0, %r1 |
| 1035 | ; true OR false = true → X → measure 1 |
| 1036 | br i1 %either, label %then, label %measure |
| 1037 | then: |
| 1038 | call void @__quantum__qis__x__body(%Qubit* inttoptr (i64 0 to %Qubit*)) |
| 1039 | br label %measure |
| 1040 | measure: |
| 1041 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 2 to %Result*)) |
| 1042 | """ |
| 1043 | |
| 1044 | |
| 1045 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 1046 | def test_or_i1_boolean(): |
| 1047 | """Deterministic boolean OR: q0=1, q1=0 → or i1 true, false → true → X → 1.""" |
| 1048 | check_result(OR_I1_QIR, "1", num_qubits=2, num_results=3, record=[2]) |
| 1049 | |
| 1050 | |
| 1051 | # ========================================================================= |
| 1052 | # OP_XOR with i1 (boolean XOR / NOT) |
| 1053 | # ========================================================================= |
| 1054 | |
| 1055 | XOR_NOT_QIR = """ |
| 1056 | entry: |
| 1057 | ; q0 = |0⟩ → measure 0 |
| 1058 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 0 to %Result*)) |
| 1059 | %r0 = call i1 @__quantum__qis__read_result__body(%Result* inttoptr (i64 0 to %Result*)) |
| 1060 | ; XOR with true is NOT: false XOR true = true |
| 1061 | %not_r0 = xor i1 %r0, true |
| 1062 | br i1 %not_r0, label %then, label %measure |
| 1063 | |
| 1064 | then: |
| 1065 | call void @__quantum__qis__x__body(%Qubit* inttoptr (i64 0 to %Qubit*)) |
| 1066 | br label %measure |
| 1067 | |
| 1068 | measure: |
| 1069 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 1 to %Result*)) |
| 1070 | """ |
| 1071 | |
| 1072 | |
| 1073 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 1074 | def test_xor_i1_not(): |
| 1075 | """XOR i1 used as NOT: measure 0 → XOR true → true → X → 1.""" |
| 1076 | check_result(XOR_NOT_QIR, "1", num_qubits=1, num_results=2, record=[1]) |
| 1077 | |
| 1078 | |
| 1079 | # ######################################################################### |
| 1080 | # Compound / Integration Tests |
| 1081 | # ######################################################################### |
| 1082 | |
| 1083 | |
| 1084 | # ========================================================================= |
| 1085 | # Chained arithmetic — complex expression |
| 1086 | # ========================================================================= |
| 1087 | |
| 1088 | CHAINED_ARITH_QIR = """ |
| 1089 | ; (3 + 4) * 2 - 1 = 13, check 13 == 13 → true |
| 1090 | %a = add i64 3, 4 |
| 1091 | %b = mul i64 %a, 2 |
| 1092 | %c = sub i64 %b, 1 |
| 1093 | %flag = icmp eq i64 %c, 13 |
| 1094 | """ |
| 1095 | |
| 1096 | |
| 1097 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 1098 | def test_chained_arithmetic(): |
| 1099 | check_arith_result(CHAINED_ARITH_QIR, "1") |
| 1100 | |
| 1101 | |
| 1102 | # ========================================================================= |
| 1103 | # OP_PHI with multiple predecessors (diamond CFG) |
| 1104 | # ========================================================================= |
| 1105 | |
| 1106 | PHI_DIAMOND_QIR = """ |
| 1107 | entry: |
| 1108 | %c = icmp eq i64 1, 1 |
| 1109 | br i1 %c, label %left, label %right |
| 1110 | left: |
| 1111 | br label %merge |
| 1112 | right: |
| 1113 | br label %merge |
| 1114 | merge: |
| 1115 | ; From left: 42, from right: 0. Since condition is true, we go left → 42. |
| 1116 | %v = phi i64 [ 42, %left ], [ 0, %right ] |
| 1117 | %flag = icmp eq i64 %v, 42 |
| 1118 | br i1 %flag, label %apply_x, label %measure |
| 1119 | apply_x: |
| 1120 | call void @__quantum__qis__x__body(%Qubit* inttoptr (i64 0 to %Qubit*)) |
| 1121 | br label %measure |
| 1122 | measure: |
| 1123 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 0 to %Result*)) |
| 1124 | """ |
| 1125 | |
| 1126 | |
| 1127 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 1128 | def test_phi_diamond(): |
| 1129 | """Diamond CFG with phi: true branch → phi resolves to 42 → X → 1.""" |
| 1130 | check_result(PHI_DIAMOND_QIR, "1") |
| 1131 | |
| 1132 | |
| 1133 | # ========================================================================= |
| 1134 | # OP_SELECT with computed condition |
| 1135 | # ========================================================================= |
| 1136 | |
| 1137 | SELECT_COMPUTED_QIR = """ |
| 1138 | ; 5 > 3 is true → select returns 10, check 10 == 10 → true |
| 1139 | %cmp = icmp sgt i64 5, 3 |
| 1140 | %s = select i1 %cmp, i64 10, i64 20 |
| 1141 | %flag = icmp eq i64 %s, 10 |
| 1142 | """ |
| 1143 | |
| 1144 | |
| 1145 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 1146 | def test_select_computed(): |
| 1147 | check_arith_result(SELECT_COMPUTED_QIR, "1") |
| 1148 | |
| 1149 | |
| 1150 | # ========================================================================= |
| 1151 | # Nested loop — OP_PHI + OP_BRANCH + OP_ADD + OP_ICMP combined |
| 1152 | # ========================================================================= |
| 1153 | |
| 1154 | # Sum 1+2+3+4+5 = 15 using a loop, then check sum == 15 |
| 1155 | NESTED_LOOP_SUM_QIR = """ |
| 1156 | entry: |
| 1157 | br label %loop |
| 1158 | loop: |
| 1159 | %i = phi i64 [ 1, %entry ], [ %next_i, %loop ] |
| 1160 | %sum = phi i64 [ 0, %entry ], [ %next_sum, %loop ] |
| 1161 | %next_sum = add i64 %sum, %i |
| 1162 | %next_i = add i64 %i, 1 |
| 1163 | %cond = icmp sle i64 %next_i, 5 |
| 1164 | br i1 %cond, label %loop, label %done |
| 1165 | done: |
| 1166 | ; %next_sum should be 15 |
| 1167 | %flag = icmp eq i64 %next_sum, 15 |
| 1168 | br i1 %flag, label %apply_x, label %measure |
| 1169 | apply_x: |
| 1170 | call void @__quantum__qis__x__body(%Qubit* inttoptr (i64 0 to %Qubit*)) |
| 1171 | br label %measure |
| 1172 | measure: |
| 1173 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 0 to %Result*)) |
| 1174 | """ |
| 1175 | |
| 1176 | |
| 1177 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 1178 | def test_nested_loop_sum(): |
| 1179 | """Sum 1..5 using phi loop, check total == 15.""" |
| 1180 | check_result(NESTED_LOOP_SUM_QIR, "1") |
| 1181 | |
| 1182 | |
| 1183 | # ========================================================================= |
| 1184 | # OP_QUANTUM_GATE — dynamic qubit addressing in a loop (GHZ-like) |
| 1185 | # ========================================================================= |
| 1186 | |
| 1187 | DYNAMIC_QUBIT_LOOP_QIR = """ |
| 1188 | entry: |
| 1189 | ; Create |+⟩ on q0 |
| 1190 | call void @__quantum__qis__h__body(%Qubit* inttoptr (i64 0 to %Qubit*)) |
| 1191 | br label %loop |
| 1192 | loop: |
| 1193 | %i = phi i64 [ 1, %entry ], [ %next_i, %loop ] |
| 1194 | %qi = inttoptr i64 %i to %Qubit* |
| 1195 | call void @__quantum__qis__cnot__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Qubit* %qi) |
| 1196 | %next_i = add i64 %i, 1 |
| 1197 | %cond = icmp sle i64 %next_i, 2 |
| 1198 | br i1 %cond, label %loop, label %measure |
| 1199 | measure: |
| 1200 | ; Measure all 3 qubits — GHZ state means all agree |
| 1201 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 0 to %Result*)) |
| 1202 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 1 to %Qubit*), %Result* inttoptr (i64 1 to %Result*)) |
| 1203 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 2 to %Qubit*), %Result* inttoptr (i64 2 to %Result*)) |
| 1204 | """ |
| 1205 | |
| 1206 | |
| 1207 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 1208 | def test_dynamic_qubit_loop(): |
| 1209 | """3-qubit GHZ via dynamic qubit loop — only '000' and '111' should appear.""" |
| 1210 | qir = format_qir(DYNAMIC_QUBIT_LOOP_QIR, num_qubits=3, num_results=3) |
| 1211 | results = _run(qir, shots=5000, seed=42)["shot_results"] |
| 1212 | counts = Counter(results) |
| 1213 | assert set(counts.keys()) <= {"000", "111"}, f"Unexpected GHZ outcomes: {counts}" |
| 1214 | assert counts.get("000", 0) > 1500 |
| 1215 | assert counts.get("111", 0) > 1500 |
| 1216 | |
| 1217 | |
| 1218 | # ========================================================================= |
| 1219 | # OP_SHL + OP_OR combined — bit packing |
| 1220 | # ========================================================================= |
| 1221 | |
| 1222 | BIT_PACK_QIR = """ |
| 1223 | ; Pack bits: (1 << 2) | 1 = 5, check 5 == 5 → true |
| 1224 | %shifted = shl i64 1, 2 |
| 1225 | %packed = or i64 %shifted, 1 |
| 1226 | %flag = icmp eq i64 %packed, 5 |
| 1227 | """ |
| 1228 | |
| 1229 | |
| 1230 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 1231 | def test_bit_packing(): |
| 1232 | check_arith_result(BIT_PACK_QIR, "1") |
| 1233 | |
| 1234 | |
| 1235 | # ========================================================================= |
| 1236 | # Combined test: all shift and bitwise ops in sequence |
| 1237 | # ========================================================================= |
| 1238 | |
| 1239 | SHIFT_BITWISE_CHAIN_QIR = """ |
| 1240 | ; Start with 0b1010 = 10 |
| 1241 | ; SHL by 1 → 0b10100 = 20 |
| 1242 | ; OR with 0b00011 = 3 → 0b10111 = 23 |
| 1243 | ; AND with 0b11110 = 30 → 0b10110 = 22 |
| 1244 | ; XOR with 0b00010 = 2 → 0b10100 = 20 |
| 1245 | ; LSHR by 2 → 0b00101 = 5 |
| 1246 | %step1 = shl i64 10, 1 |
| 1247 | %step2 = or i64 %step1, 3 |
| 1248 | %step3 = and i64 %step2, 30 |
| 1249 | %step4 = xor i64 %step3, 2 |
| 1250 | %step5 = lshr i64 %step4, 2 |
| 1251 | %flag = icmp eq i64 %step5, 5 |
| 1252 | """ |
| 1253 | |
| 1254 | |
| 1255 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 1256 | def test_shift_bitwise_chain(): |
| 1257 | check_arith_result(SHIFT_BITWISE_CHAIN_QIR, "1") |
| 1258 | |
| 1259 | |
| 1260 | # ========================================================================= |
| 1261 | # OP_SWITCH with computed value from arithmetic |
| 1262 | # ========================================================================= |
| 1263 | |
| 1264 | SWITCH_ARITH_QIR = """ |
| 1265 | entry: |
| 1266 | ; Compute 2 * 3 - 4 = 2 |
| 1267 | %a = mul i64 2, 3 |
| 1268 | %val = sub i64 %a, 4 |
| 1269 | switch i64 %val, label %default [ |
| 1270 | i64 0, label %case0 |
| 1271 | i64 1, label %case1 |
| 1272 | i64 2, label %case2 |
| 1273 | i64 3, label %case3 |
| 1274 | ] |
| 1275 | case0: |
| 1276 | br label %measure |
| 1277 | case1: |
| 1278 | br label %measure |
| 1279 | case2: |
| 1280 | ; Expected path |
| 1281 | call void @__quantum__qis__x__body(%Qubit* inttoptr (i64 0 to %Qubit*)) |
| 1282 | br label %measure |
| 1283 | case3: |
| 1284 | br label %measure |
| 1285 | default: |
| 1286 | br label %measure |
| 1287 | measure: |
| 1288 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 0 to %Result*)) |
| 1289 | """ |
| 1290 | |
| 1291 | |
| 1292 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 1293 | def test_switch_from_arithmetic(): |
| 1294 | """Switch on computed value 2*3-4=2 → case2 → X → 1.""" |
| 1295 | check_result(SWITCH_ARITH_QIR, "1") |
| 1296 | |
| 1297 | |
| 1298 | # ========================================================================= |
| 1299 | # Float: sitofp → fadd → fptosi round-trip |
| 1300 | # ========================================================================= |
| 1301 | |
| 1302 | FLOAT_ROUNDTRIP_QIR = """ |
| 1303 | ; sitofp 7 → 7.0, fadd 7.0 + 3.0 → 10.0, fptosi → 10, check == 10 |
| 1304 | %f = sitofp i64 7 to double |
| 1305 | %three = fadd double 0.0, 3.0 |
| 1306 | %sum = fadd double %f, %three |
| 1307 | %i = fptosi double %sum to i64 |
| 1308 | %flag = icmp eq i64 %i, 10 |
| 1309 | """ |
| 1310 | |
| 1311 | |
| 1312 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 1313 | def test_float_roundtrip(): |
| 1314 | check_arith_result(FLOAT_ROUNDTRIP_QIR, "1") |
| 1315 | |
| 1316 | |
| 1317 | # ========================================================================= |
| 1318 | # OP_CALL with return value |
| 1319 | # ========================================================================= |
| 1320 | |
| 1321 | CALL_WITH_RETVAL_QIR = """ |
| 1322 | entry: |
| 1323 | %result = call i64 @add_numbers(i64 3, i64 4) |
| 1324 | %flag = icmp eq i64 %result, 7 |
| 1325 | br i1 %flag, label %then, label %measure |
| 1326 | then: |
| 1327 | call void @__quantum__qis__x__body(%Qubit* inttoptr (i64 0 to %Qubit*)) |
| 1328 | br label %measure |
| 1329 | measure: |
| 1330 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 0 to %Result*)) |
| 1331 | """ |
| 1332 | |
| 1333 | CALL_WITH_RETVAL_QIR_FN = """ |
| 1334 | define i64 @add_numbers(i64 %a, i64 %b) { |
| 1335 | entry: |
| 1336 | %sum = add i64 %a, %b |
| 1337 | ret i64 %sum |
| 1338 | } |
| 1339 | """ |
| 1340 | |
| 1341 | |
| 1342 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 1343 | def test_call_with_return_value(): |
| 1344 | """Call a function returning i64, use result in comparison.""" |
| 1345 | check_result(CALL_WITH_RETVAL_QIR, "1", extra_decls=CALL_WITH_RETVAL_QIR_FN) |
| 1346 | |
| 1347 | |
| 1348 | # ========================================================================= |
| 1349 | # OP_MUL + OP_UDIV + OP_UREM combined |
| 1350 | # ========================================================================= |
| 1351 | |
| 1352 | MUL_DIV_REM_QIR = """ |
| 1353 | ; 17 / 5 = 3 (udiv), 17 % 5 = 2 (urem), 3 * 5 + 2 = 17 |
| 1354 | %q = udiv i64 17, 5 |
| 1355 | %r = urem i64 17, 5 |
| 1356 | %product = mul i64 %q, 5 |
| 1357 | %reconstructed = add i64 %product, %r |
| 1358 | %flag = icmp eq i64 %reconstructed, 17 |
| 1359 | """ |
| 1360 | |
| 1361 | |
| 1362 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 1363 | def test_mul_div_rem_identity(): |
| 1364 | """Division identity: (a/b)*b + (a%b) == a.""" |
| 1365 | check_arith_result(MUL_DIV_REM_QIR, "1") |
| 1366 | |
| 1367 | |
| 1368 | # ========================================================================= |
| 1369 | # OP_MEASURE with mid-circuit branch (measure-and-correct pattern) |
| 1370 | # ========================================================================= |
| 1371 | |
| 1372 | MEASURE_BRANCH_QIR = """ |
| 1373 | entry: |
| 1374 | ; Deterministically put qubit in |1⟩ |
| 1375 | call void @__quantum__qis__x__body(%Qubit* inttoptr (i64 0 to %Qubit*)) |
| 1376 | ; Measure (should be 1) and reset to |0⟩ |
| 1377 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 0 to %Result*)) |
| 1378 | %r = call i1 @__quantum__qis__read_result__body(%Result* inttoptr (i64 0 to %Result*)) |
| 1379 | ; Since r=1, branch to 'correct' which applies X to restore |1⟩ |
| 1380 | br i1 %r, label %correct, label %measure |
| 1381 | |
| 1382 | correct: |
| 1383 | call void @__quantum__qis__x__body(%Qubit* inttoptr (i64 0 to %Qubit*)) |
| 1384 | br label %measure |
| 1385 | |
| 1386 | measure: |
| 1387 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 1 to %Result*)) |
| 1388 | """ |
| 1389 | |
| 1390 | |
| 1391 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 1392 | def test_measure_and_branch(): |
| 1393 | """Deterministic measure-and-correct: X→MResetZ→read_result→X→MResetZ → always 1.""" |
| 1394 | check_result(MEASURE_BRANCH_QIR, "1", num_results=2, record=[1]) |
| 1395 | |
| 1396 | |
| 1397 | # ========================================================================= |
| 1398 | # OP_ADD with register-register (no immediates) |
| 1399 | # ========================================================================= |
| 1400 | |
| 1401 | ADD_REG_REG_QIR = """ |
| 1402 | ; Use computed values in registers, not just immediates |
| 1403 | %a = add i64 2, 1 |
| 1404 | %b = add i64 3, 1 |
| 1405 | %c = add i64 %a, %b |
| 1406 | ; 3 + 4 = 7 |
| 1407 | %flag = icmp eq i64 %c, 7 |
| 1408 | """ |
| 1409 | |
| 1410 | |
| 1411 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 1412 | def test_add_register_register(): |
| 1413 | check_arith_result(ADD_REG_REG_QIR, "1") |
| 1414 | |
| 1415 | |
| 1416 | # ========================================================================= |
| 1417 | # Error code check — all tests should produce clean shots |
| 1418 | # ========================================================================= |
| 1419 | |
| 1420 | |
| 1421 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 1422 | def test_no_error_codes(): |
| 1423 | """Verify that a representative program produces zero error codes.""" |
| 1424 | qir = format_qir(build_arith_body(ADD_REG_REG_QIR)) |
| 1425 | codes = _run(qir)["shot_result_codes"] |
| 1426 | assert all( |
| 1427 | c == 0 for c in codes |
| 1428 | ), f"Non-zero error codes: {[c for c in codes if c != 0]}" |
| 1429 | |
| 1430 | |
| 1431 | # ========================================================================= |
| 1432 | # Error code check — can return error codes |
| 1433 | # ========================================================================= |
| 1434 | |
| 1435 | ERROR_CODE_QIR = """ |
| 1436 | entry: |
| 1437 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 0 to %Result*)) |
| 1438 | ret i64 1 |
| 1439 | """ |
| 1440 | |
| 1441 | |
| 1442 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 1443 | def test_error_codes(): |
| 1444 | """Verify that a representative program produces zero error codes.""" |
| 1445 | qir = format_qir(ERROR_CODE_QIR) |
| 1446 | codes = _run(qir)["shot_result_codes"] |
| 1447 | assert all( |
| 1448 | c == 1 for c in codes |
| 1449 | ), f"All error codes should be 1: {[c for c in codes if c != 1]}" |
| 1450 | |
| 1451 | |
| 1452 | # ######################################################################### |
| 1453 | # Regression tests — exercising specific edge-cases that previously failed |
| 1454 | # ######################################################################### |
| 1455 | |
| 1456 | |
| 1457 | # ========================================================================= |
| 1458 | # SREM with negative dividend (GPU signed-modulo edge case) |
| 1459 | # ========================================================================= |
| 1460 | |
| 1461 | SREM_NEG_DIVIDEND_QIR = """ |
| 1462 | ; -7 % 2 = -1, verify result < 0 |
| 1463 | %neg7 = sub i64 0, 7 |
| 1464 | %a = srem i64 %neg7, 2 |
| 1465 | %flag = icmp slt i64 %a, 0 |
| 1466 | """ |
| 1467 | |
| 1468 | |
| 1469 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 1470 | def test_srem_negative_dividend(): |
| 1471 | """srem must preserve the sign of the dividend on GPU.""" |
| 1472 | check_arith_result(SREM_NEG_DIVIDEND_QIR, "1") |
| 1473 | |
| 1474 | |
| 1475 | SREM_NEG_BOTH_QIR = """ |
| 1476 | ; -10 % -3 = -1 (sign follows dividend) |
| 1477 | %neg10 = sub i64 0, 10 |
| 1478 | %neg3 = sub i64 0, 3 |
| 1479 | %a = srem i64 %neg10, %neg3 |
| 1480 | %neg1 = sub i64 0, 1 |
| 1481 | %flag = icmp eq i64 %a, %neg1 |
| 1482 | """ |
| 1483 | |
| 1484 | |
| 1485 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 1486 | def test_srem_negative_both(): |
| 1487 | """srem with both operands negative.""" |
| 1488 | check_arith_result(SREM_NEG_BOTH_QIR, "1") |
| 1489 | |
| 1490 | |
| 1491 | # ========================================================================= |
| 1492 | # SEXT from i1 (sign-extension must convert 1 → -1) |
| 1493 | # ========================================================================= |
| 1494 | |
| 1495 | SEXT_I1_FALSE_QIR = """ |
| 1496 | ; sext i1 false to i64 → 0, check 0 == 0 → true |
| 1497 | %s = sext i1 false to i64 |
| 1498 | %flag = icmp eq i64 %s, 0 |
| 1499 | """ |
| 1500 | |
| 1501 | |
| 1502 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 1503 | def test_sext_i1_false(): |
| 1504 | """sext of false (i1 0) must be 0.""" |
| 1505 | check_arith_result(SEXT_I1_FALSE_QIR, "1") |
| 1506 | |
| 1507 | |
| 1508 | SEXT_I1_RUNTIME_QIR = """ |
| 1509 | ; compute i1 true at runtime, sext → -1, check < 0 |
| 1510 | %one = add i64 1, 0 |
| 1511 | %b = icmp eq i64 %one, 1 |
| 1512 | %s = sext i1 %b to i64 |
| 1513 | %flag = icmp slt i64 %s, 0 |
| 1514 | """ |
| 1515 | |
| 1516 | |
| 1517 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 1518 | def test_sext_i1_runtime(): |
| 1519 | """sext of a runtime i1 true value must also sign-extend to -1.""" |
| 1520 | check_arith_result(SEXT_I1_RUNTIME_QIR, "1") |
| 1521 | |
| 1522 | |
| 1523 | # ========================================================================= |
| 1524 | # Call to IR-defined function with inttoptr constant argument |
| 1525 | # ========================================================================= |
| 1526 | |
| 1527 | CALL_INTTOPTR_ARG_QIR = """ |
| 1528 | entry: |
| 1529 | call void @apply_h_then_z_then_h(%Qubit* inttoptr (i64 0 to %Qubit*)) |
| 1530 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 0 to %Result*)) |
| 1531 | """ |
| 1532 | |
| 1533 | CALL_INTTOPTR_ARG_QIR_FN = """ |
| 1534 | define void @apply_h_then_z_then_h(%Qubit* %q) { |
| 1535 | entry: |
| 1536 | call void @__quantum__qis__h__body(%Qubit* %q) |
| 1537 | call void @__quantum__qis__z__body(%Qubit* %q) |
| 1538 | call void @__quantum__qis__h__body(%Qubit* %q) |
| 1539 | ret void |
| 1540 | } |
| 1541 | """ |
| 1542 | |
| 1543 | |
| 1544 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 1545 | def test_call_inttoptr_arg(): |
| 1546 | """Call a helper with an inttoptr constant expression argument.""" |
| 1547 | check_result(CALL_INTTOPTR_ARG_QIR, "1", extra_decls=CALL_INTTOPTR_ARG_QIR_FN) |
| 1548 | |
| 1549 | |
| 1550 | # ========================================================================= |
| 1551 | # SITOFP with negative value (signed int → float) |
| 1552 | # ========================================================================= |
| 1553 | |
| 1554 | SITOFP_NEG_QIR = """ |
| 1555 | ; sitofp -3 → -3.0, then -3.0 < 0.0 → true |
| 1556 | %neg3 = sub i64 0, 3 |
| 1557 | %f = sitofp i64 %neg3 to double |
| 1558 | %zero = sitofp i64 0 to double |
| 1559 | %flag = fcmp olt double %f, %zero |
| 1560 | """ |
| 1561 | |
| 1562 | |
| 1563 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 1564 | def test_sitofp_negative(): |
| 1565 | """sitofp must correctly convert a negative integer.""" |
| 1566 | check_arith_result(SITOFP_NEG_QIR, "1") |
| 1567 | |
| 1568 | |
| 1569 | # ========================================================================= |
| 1570 | # Call stack overflow guard |
| 1571 | # ========================================================================= |
| 1572 | |
| 1573 | RECURSIVE_OVERFLOW_BODY = """ |
| 1574 | entry: |
| 1575 | call void @recursive_fn(%Qubit* inttoptr (i64 0 to %Qubit*)) |
| 1576 | call void @__quantum__qis__mresetz__body(%Qubit* inttoptr (i64 0 to %Qubit*), %Result* inttoptr (i64 0 to %Result*)) |
| 1577 | """ |
| 1578 | |
| 1579 | RECURSIVE_OVERFLOW_FN = """ |
| 1580 | define void @recursive_fn(%Qubit* %q) { |
| 1581 | entry: |
| 1582 | call void @recursive_fn(%Qubit* %q) |
| 1583 | ret void |
| 1584 | } |
| 1585 | """ |
| 1586 | |
| 1587 | |
| 1588 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 1589 | def test_call_stack_overflow_guard(): |
| 1590 | """Verify GPU interpreter handles call stack overflow gracefully.""" |
| 1591 | qir = format_qir(RECURSIVE_OVERFLOW_BODY, extra_decls=RECURSIVE_OVERFLOW_FN) |
| 1592 | codes = _run(qir, shots=10)["shot_result_codes"] |
| 1593 | # Every shot should return error code 3 (ERR_CALL_STACK_OVERFLOW) |
| 1594 | assert all( |
| 1595 | c == 3 for c in codes |
| 1596 | ), f"Expected all error codes to be 3 (stack overflow), got {codes}" |
| 1597 | |
| 1598 | |
| 1599 | # ######################################################################### |
| 1600 | # Dynamic register file sizing (programs exceeding 128 registers) |
| 1601 | # ######################################################################### |
| 1602 | |
| 1603 | |
| 1604 | def _run_openqasm(qasm_src: str, shots: int = SHOTS, seed: int = 42): |
| 1605 | """Compile OpenQASM source via the adaptive pass and run on the GPU.""" |
| 1606 | global sim |
| 1607 | qir = qsharp.openqasm.compile( |
| 1608 | qasm_src, |
| 1609 | output_semantics=qsharp.openqasm.OutputSemantics.OpenQasm, |
| 1610 | target_profile=qsharp.TargetProfile.Adaptive_RIF, |
| 1611 | ) |
| 1612 | sim.set_program(qir) |
| 1613 | return sim.run_shots(shots, seed=seed) |
| 1614 | |
| 1615 | |
| 1616 | # ========================================================================= |
| 1617 | # Complex RUS loop — requires >128 registers after loop unrolling |
| 1618 | # ========================================================================= |
| 1619 | |
| 1620 | |
| 1621 | @pytest.mark.skipif(not GPU_AVAILABLE, reason=SKIP_REASON) |
| 1622 | def test_complex_rus_exceeds_128_registers(): |
| 1623 | """A complex repeat-until-success pattern with 50 iterations. |
| 1624 | |
| 1625 | The Q# compiler fully unrolls the loop for the Adaptive_RIF profile, |
| 1626 | producing ~301 registers — well above the old fixed limit of 128. |
| 1627 | This validates that dynamic register file sizing works correctly. |
| 1628 | """ |
| 1629 | qasm_src = """\ |
| 1630 | OPENQASM 3.0; |
| 1631 | include "stdgates.inc"; |
| 1632 | qubit[4] q; |
| 1633 | bit c; |
| 1634 | int total = 0; |
| 1635 | int i = 0; |
| 1636 | while (i < 50) { |
| 1637 | h q[0]; |
| 1638 | cx q[0], q[1]; |
| 1639 | c = measure q[0]; |
| 1640 | if (c) { |
| 1641 | x q[1]; |
| 1642 | reset q[0]; |
| 1643 | total = total + 1; |
| 1644 | } |
| 1645 | h q[2]; |
| 1646 | cx q[2], q[3]; |
| 1647 | c = measure q[2]; |
| 1648 | if (c) { |
| 1649 | x q[3]; |
| 1650 | reset q[2]; |
| 1651 | total = total + 1; |
| 1652 | } |
| 1653 | i = i + 1; |
| 1654 | } |
| 1655 | bit[4] result = measure q; |
| 1656 | """ |
| 1657 | results = _run_openqasm(qasm_src, shots=100) |
| 1658 | shot_results = results["shot_results"] |
| 1659 | # Results include the mid-circuit measurement bit plus 4 final qubits |
| 1660 | assert all( |
| 1661 | len(r) >= 4 and all(c in "01" for c in r) for r in shot_results |
| 1662 | ), f"Unexpected result format: {shot_results[:5]}" |
| 1663 | # All shots should succeed (result code 0) |
| 1664 | assert all( |
| 1665 | c == 0 for c in results["shot_result_codes"] |
| 1666 | ), f"Some shots failed: {results['shot_result_codes']}" |
| 1667 | |