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luau/tests
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Arseny Kapoulkine 24cacc94ed
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CodeGen: Implement support for math.lerp lowering (#1609) 
To implement math.lerp without branches, we add SELECT_NUM which
selects one of the two inputs based on the comparison condition.

For simplicity, we only support C == D for now; this can be extended to
a more generic version with a IrCondition operand E, but that requires
more work on the SSE side (to flip the comparison for some conditions
like Greater, and expose more generic vcmpsd).

Note: On AArch64 this will effectively result in a change in floating
point
behavior between native code and non-native code: clang synthesizes
fmadd (because floating point contraction is allowed by default, and the
arch always has the instruction), whereas this change will use
fmul+fadd.

I am not sure if this is good or bad, and if this is a problem in C or
not.
Specifically, clang's behavior results in different results between X64
and AArch64 when *not* using codegen, and with this change the behavior
when using codegen is... the same? :)

Fixing this will require either using LERP_NUM instead and hand-coding
lowering, or exposing some sort of "quasi" MADD_NUM (which would
lower to fma on AArch64 and mul+add on X64).

A small benefit to the current approach is `lerp(1, 5, t)`
constant-folds the
subtraction. With LERP_NUM this optimization will need to be implemented
manually as a partial constant-folding for LERP_NUM.

A similar problem exists today for vector.cross & vector.dot. So maybe
this
is not something we need to fix, unsure.
2025-01-16 10:48:27 -08:00
..
conformance CodeGen: Implement support for math.lerp lowering (#1609) 2025-01-16 10:48:27 -08:00
require Sync to upstream/release/652 (#1525) 2024-11-15 14:29:30 -08:00
AnyTypeSummary.test.cpp Sync to upstream/release/656 (#1612) 2025-01-10 11:34:39 -08:00
AssemblyBuilderA64.test.cpp Sync to upstream/release/653 (#1541) 2024-11-22 13:00:51 -08:00
AssemblyBuilderX64.test.cpp CodeGen: Implement support for math.lerp lowering (#1609) 2025-01-16 10:48:27 -08:00
AstJsonEncoder.test.cpp Sync to upstream/release/651 (#1513) 2024-11-08 13:41:45 -08:00
AstQuery.test.cpp Sync to upstream/release/650 (#1502) 2024-11-01 12:06:07 -07:00
AstQueryDsl.cpp Sync to upstream/release/549 (#707) 2022-10-14 12:48:41 -07:00
AstQueryDsl.h Sync to upstream/release/549 (#707) 2022-10-14 12:48:41 -07:00
AstVisitor.test.cpp Sync to upstream/release/501 (#20) 2021-11-01 14:52:34 -07:00
Autocomplete.test.cpp Sync to upstream/release/656 (#1612) 2025-01-10 11:34:39 -08:00
BuiltinDefinitions.test.cpp Sync to upstream/release/637 (#1354) 2024-08-02 07:30:04 -07:00
ClassFixture.cpp Sync to upstream/release/637 (#1354) 2024-08-02 07:30:04 -07:00
ClassFixture.h Sync to upstream/release/600 (#1076) 2023-10-20 18:10:30 -07:00
CodeAllocator.test.cpp Sync to upstream/release/637 (#1354) 2024-08-02 07:30:04 -07:00
Compiler.test.cpp Sync to upstream/release/656 (#1612) 2025-01-10 11:34:39 -08:00
Config.test.cpp Sync to upstream/release/651 (#1513) 2024-11-08 13:41:45 -08:00
Conformance.test.cpp Sync to upstream/release/656 (#1612) 2025-01-10 11:34:39 -08:00
ConformanceIrHooks.h Sync to upstream/release/637 (#1354) 2024-08-02 07:30:04 -07:00
ConstraintGeneratorFixture.cpp Sync to upstream/release/651 (#1513) 2024-11-08 13:41:45 -08:00
ConstraintGeneratorFixture.h Sync to upstream/release/651 (#1513) 2024-11-08 13:41:45 -08:00
ConstraintSolver.test.cpp Sync to upstream/release/641 (#1382) 2024-08-30 13:16:51 -07:00
CostModel.test.cpp Sync to upstream/release/591 (#1012) 2023-08-18 11:15:41 -07:00
DataFlowGraph.test.cpp Sync to upstream/release/641 (#1382) 2024-08-30 13:16:51 -07:00
DenseHash.test.cpp Sync to upstream/release/561 (#820) 2023-01-27 14:28:31 -08:00
DiffAsserts.cpp Sync to upstream/release/600 (#1076) 2023-10-20 18:10:30 -07:00
DiffAsserts.h Sync to upstream/release/613 (#1167) 2024-02-15 18:04:39 -08:00
Differ.test.cpp Sync to upstream/release/650 (#1502) 2024-11-01 12:06:07 -07:00
EqSat.language.test.cpp Sync to upstream/release/651 (#1513) 2024-11-08 13:41:45 -08:00
EqSat.propositional.test.cpp Sync to upstream/release/637 (#1354) 2024-08-02 07:30:04 -07:00
EqSat.slice.test.cpp Equality graphs (#1285) 2024-07-16 10:35:20 -07:00
EqSatSimplification.test.cpp Sync to upstream/release/656 (#1612) 2025-01-10 11:34:39 -08:00
Error.test.cpp Sync to upstream/release/641 (#1382) 2024-08-30 13:16:51 -07:00
Fixture.cpp Sync to upstream/release/653 (#1541) 2024-11-22 13:00:51 -08:00
Fixture.h Sync to upstream/release/656 (#1612) 2025-01-10 11:34:39 -08:00
FragmentAutocomplete.test.cpp Sync to upstream/release/656 (#1612) 2025-01-10 11:34:39 -08:00
Frontend.test.cpp Sync to upstream/release/655 (#1563) 2024-12-13 13:02:30 -08:00
Generalization.test.cpp Sync to upstream/release/641 (#1382) 2024-08-30 13:16:51 -07:00
InsertionOrderedMap.test.cpp Sync to upstream/release/580 (#951) 2023-06-09 10:08:00 -07:00
Instantiation2.test.cpp Sync to upstream/release/637 (#1354) 2024-08-02 07:30:04 -07:00
IostreamOptional.h Sync to upstream/release/603 (#1097) 2023-11-10 13:10:07 -08:00
IrBuilder.test.cpp Sync to upstream/release/654 (#1552) 2024-12-02 16:16:33 -08:00
IrCallWrapperX64.test.cpp Sync to upstream/release/601 (#1084) 2023-10-27 14:18:41 -07:00
IrLowering.test.cpp Sync to upstream/release/656 (#1612) 2025-01-10 11:34:39 -08:00
IrRegAllocX64.test.cpp Sync to upstream/release/595 (#1044) 2023-09-15 10:26:59 -07:00
JsonEmitter.test.cpp Sync to upstream/release/543 (#657) 2022-09-01 16:14:03 -07:00
Lexer.test.cpp Sync to upstream/release/656 (#1612) 2025-01-10 11:34:39 -08:00
Linter.test.cpp Sync to upstream/release/653 (#1541) 2024-11-22 13:00:51 -08:00
LValue.test.cpp Sync to upstream/release/637 (#1354) 2024-08-02 07:30:04 -07:00
main.cpp Sync to upstream/release/652 (#1525) 2024-11-15 14:29:30 -08:00
Module.test.cpp Sync to upstream/release/655 (#1563) 2024-12-13 13:02:30 -08:00
NonstrictMode.test.cpp Sync to upstream/release/650 (#1502) 2024-11-01 12:06:07 -07:00
NonStrictTypeChecker.test.cpp Sync to upstream/release/652 (#1525) 2024-11-15 14:29:30 -08:00
Normalize.test.cpp Sync to upstream/release/655 (#1563) 2024-12-13 13:02:30 -08:00
NotNull.test.cpp Sync to upstream/release/555 (#768) 2022-12-02 10:09:59 -08:00
Parser.test.cpp Sync to upstream/release/656 (#1612) 2025-01-10 11:34:39 -08:00
RegisterCallbacks.cpp Sync to upstream/release/594 (#1036) 2023-09-07 17:13:49 -07:00
RegisterCallbacks.h Sync to upstream/release/594 (#1036) 2023-09-07 17:13:49 -07:00
Repl.test.cpp Sync to upstream/release/656 (#1612) 2025-01-10 11:34:39 -08:00
RequireByString.test.cpp Refactor CLI structure to match the include/src split that our other projects have. (#1573) 2024-12-17 13:50:27 -08:00
RequireTracer.test.cpp Sync to upstream/release/514 (#372) 2022-02-17 17:18:01 -08:00
RuntimeLimits.test.cpp Sync to upstream/release/650 (#1502) 2024-11-01 12:06:07 -07:00
ScopedFlags.h Sync to upstream/release/616 (#1184) 2024-03-08 16:47:53 -08:00
Set.test.cpp Sync to upstream/release/625 (#1252) 2024-05-10 11:21:45 -07:00
SharedCodeAllocator.test.cpp Sync to upstream/release/647 (#1469) 2024-10-11 17:48:30 -07:00
Simplify.test.cpp Sync to upstream/release/641 (#1382) 2024-08-30 13:16:51 -07:00
StringUtils.test.cpp Sync to upstream/release/588 (#992) 2023-07-28 08:13:53 -07:00
Subtyping.test.cpp Sync to upstream/release/655 (#1563) 2024-12-13 13:02:30 -08:00
Symbol.test.cpp Sync to upstream/release/641 (#1382) 2024-08-30 13:16:51 -07:00
ToDot.test.cpp Sync to upstream/release/653 (#1541) 2024-11-22 13:00:51 -08:00
TopoSort.test.cpp Sync to upstream/release/523 (#459) 2022-04-14 16:57:43 -07:00
ToString.test.cpp Sync to upstream/release/656 (#1612) 2025-01-10 11:34:39 -08:00
Transpiler.test.cpp Sync to upstream/release/655 (#1563) 2024-12-13 13:02:30 -08:00
TxnLog.test.cpp Sync to upstream/release/641 (#1382) 2024-08-30 13:16:51 -07:00
TypeFunction.test.cpp Sync to upstream/release/655 (#1563) 2024-12-13 13:02:30 -08:00
TypeFunction.user.test.cpp Sync to upstream/release/656 (#1612) 2025-01-10 11:34:39 -08:00
TypeInfer.aliases.test.cpp Sync to upstream/release/655 (#1563) 2024-12-13 13:02:30 -08:00
TypeInfer.annotations.test.cpp Sync to upstream/release/641 (#1382) 2024-08-30 13:16:51 -07:00
TypeInfer.anyerror.test.cpp Sync to upstream/release/641 (#1382) 2024-08-30 13:16:51 -07:00
TypeInfer.builtins.test.cpp Sync to upstream/release/652 (#1525) 2024-11-15 14:29:30 -08:00
TypeInfer.cfa.test.cpp Sync to upstream/release/636 (#1346) 2024-07-26 10:47:49 -07:00
TypeInfer.classes.test.cpp Sync to upstream/release/656 (#1612) 2025-01-10 11:34:39 -08:00
TypeInfer.definitions.test.cpp Pre-populate/duplicate check class definitions (new solver) (#1493) 2024-11-05 15:21:18 -08:00
TypeInfer.functions.test.cpp Sync to upstream/release/656 (#1612) 2025-01-10 11:34:39 -08:00
TypeInfer.generics.test.cpp Sync to upstream/release/650 (#1502) 2024-11-01 12:06:07 -07:00
TypeInfer.intersectionTypes.test.cpp Sync to upstream/release/650 (#1502) 2024-11-01 12:06:07 -07:00
TypeInfer.loops.test.cpp Sync to upstream/release/650 (#1502) 2024-11-01 12:06:07 -07:00
TypeInfer.modules.test.cpp Sync to upstream/release/654 (#1552) 2024-12-02 16:16:33 -08:00
TypeInfer.negations.test.cpp Sync to upstream/release/641 (#1382) 2024-08-30 13:16:51 -07:00
TypeInfer.oop.test.cpp Sync to upstream/release/650 (#1502) 2024-11-01 12:06:07 -07:00
TypeInfer.operators.test.cpp Sync to upstream/release/656 (#1612) 2025-01-10 11:34:39 -08:00
TypeInfer.primitives.test.cpp Sync to upstream/release/656 (#1612) 2025-01-10 11:34:39 -08:00
TypeInfer.provisional.test.cpp Sync to upstream/release/656 (#1612) 2025-01-10 11:34:39 -08:00
TypeInfer.refinements.test.cpp Sync to upstream/release/656 (#1612) 2025-01-10 11:34:39 -08:00
TypeInfer.singletons.test.cpp Sync to upstream/release/650 (#1502) 2024-11-01 12:06:07 -07:00
TypeInfer.tables.test.cpp Sync to upstream/release/656 (#1612) 2025-01-10 11:34:39 -08:00
TypeInfer.test.cpp Sync to upstream/release/656 (#1612) 2025-01-10 11:34:39 -08:00
TypeInfer.tryUnify.test.cpp Sync to upstream/release/650 (#1502) 2024-11-01 12:06:07 -07:00
TypeInfer.typePacks.test.cpp Sync to upstream/release/656 (#1612) 2025-01-10 11:34:39 -08:00
TypeInfer.typestates.test.cpp Sync to upstream/release/641 (#1382) 2024-08-30 13:16:51 -07:00
TypeInfer.unionTypes.test.cpp Sync to upstream/release/656 (#1612) 2025-01-10 11:34:39 -08:00
TypeInfer.unknownnever.test.cpp Sync to upstream/release/641 (#1382) 2024-08-30 13:16:51 -07:00
TypePack.test.cpp Sync to upstream/release/653 (#1541) 2024-11-22 13:00:51 -08:00
TypePath.test.cpp Sync to upstream/release/650 (#1502) 2024-11-01 12:06:07 -07:00
TypeVar.test.cpp Sync to upstream/release/641 (#1382) 2024-08-30 13:16:51 -07:00
Unifier2.test.cpp Sync to upstream/release/641 (#1382) 2024-08-30 13:16:51 -07:00
Variant.test.cpp Sync to upstream/release/637 (#1354) 2024-08-02 07:30:04 -07:00
VecDeque.test.cpp Sync to upstream/release/637 (#1354) 2024-08-02 07:30:04 -07:00
VisitType.test.cpp Sync to upstream/release/641 (#1382) 2024-08-30 13:16:51 -07:00