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[MLIR][Python] Forward the name of MLIR types to Python side (#174700)
In this PR, I added a C API for each (upstream) MLIR type to retrieve its type name (for example, `IntegerType` -> `mlirIntegerTypeGetName()` -> `"builtin.integer"`), and exposed a corresponding `type_name` class attribute in the Python bindings (e.g., `IntegerType.type_name` -> `"builtin.integer"`). This can be used in various places to avoid hard-coded strings, such as eliminating the manual string in `irdl.base("!builtin.integer")`. Note that parts of this PR (mainly mechanical changes) were produced via GitHub Copilot and GPT-5.2. I have manually reviewed the changes and verified them with tests to ensure correctness.
1 parent eb13822 commit b919d62

31 files changed

Lines changed: 451 additions & 0 deletions

‎mlir/include/mlir-c/BuiltinTypes.h‎

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Original file line numberDiff line numberDiff line change
@@ -33,6 +33,8 @@ MLIR_CAPI_EXPORTED bool mlirTypeIsAInteger(MlirType type);
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MLIR_CAPI_EXPORTED MlirType mlirIntegerTypeGet(MlirContext ctx,
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unsigned bitwidth);
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MLIR_CAPI_EXPORTED MlirStringRef mlirIntegerTypeGetName(void);
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/// Creates a signed integer type of the given bitwidth in the context. The type
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/// is owned by the context.
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MLIR_CAPI_EXPORTED MlirType mlirIntegerTypeSignedGet(MlirContext ctx,
@@ -69,6 +71,8 @@ MLIR_CAPI_EXPORTED bool mlirTypeIsAIndex(MlirType type);
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/// context.
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MLIR_CAPI_EXPORTED MlirType mlirIndexTypeGet(MlirContext ctx);
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MLIR_CAPI_EXPORTED MlirStringRef mlirIndexTypeGetName(void);
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//===----------------------------------------------------------------------===//
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// Floating-point types.
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//===----------------------------------------------------------------------===//
@@ -89,6 +93,8 @@ MLIR_CAPI_EXPORTED bool mlirTypeIsAFloat4E2M1FN(MlirType type);
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/// context.
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MLIR_CAPI_EXPORTED MlirType mlirFloat4E2M1FNTypeGet(MlirContext ctx);
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MLIR_CAPI_EXPORTED MlirStringRef mlirFloat4E2M1FNTypeGetName(void);
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/// Returns the typeID of an Float6E2M3FN type.
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MLIR_CAPI_EXPORTED MlirTypeID mlirFloat6E2M3FNTypeGetTypeID(void);
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@@ -99,6 +105,8 @@ MLIR_CAPI_EXPORTED bool mlirTypeIsAFloat6E2M3FN(MlirType type);
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/// context.
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MLIR_CAPI_EXPORTED MlirType mlirFloat6E2M3FNTypeGet(MlirContext ctx);
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MLIR_CAPI_EXPORTED MlirStringRef mlirFloat6E2M3FNTypeGetName(void);
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/// Returns the typeID of an Float6E3M2FN type.
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MLIR_CAPI_EXPORTED MlirTypeID mlirFloat6E3M2FNTypeGetTypeID(void);
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@@ -109,6 +117,8 @@ MLIR_CAPI_EXPORTED bool mlirTypeIsAFloat6E3M2FN(MlirType type);
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/// context.
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MLIR_CAPI_EXPORTED MlirType mlirFloat6E3M2FNTypeGet(MlirContext ctx);
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MLIR_CAPI_EXPORTED MlirStringRef mlirFloat6E3M2FNTypeGetName(void);
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/// Returns the typeID of an Float8E5M2 type.
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MLIR_CAPI_EXPORTED MlirTypeID mlirFloat8E5M2TypeGetTypeID(void);
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@@ -119,6 +129,8 @@ MLIR_CAPI_EXPORTED bool mlirTypeIsAFloat8E5M2(MlirType type);
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/// context.
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MLIR_CAPI_EXPORTED MlirType mlirFloat8E5M2TypeGet(MlirContext ctx);
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MLIR_CAPI_EXPORTED MlirStringRef mlirFloat8E5M2TypeGetName(void);
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/// Returns the typeID of an Float8E4M3 type.
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MLIR_CAPI_EXPORTED MlirTypeID mlirFloat8E4M3TypeGetTypeID(void);
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@@ -129,6 +141,8 @@ MLIR_CAPI_EXPORTED bool mlirTypeIsAFloat8E4M3(MlirType type);
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/// context.
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MLIR_CAPI_EXPORTED MlirType mlirFloat8E4M3TypeGet(MlirContext ctx);
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MLIR_CAPI_EXPORTED MlirStringRef mlirFloat8E4M3TypeGetName(void);
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/// Returns the typeID of an Float8E4M3FN type.
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MLIR_CAPI_EXPORTED MlirTypeID mlirFloat8E4M3FNTypeGetTypeID(void);
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@@ -139,6 +153,8 @@ MLIR_CAPI_EXPORTED bool mlirTypeIsAFloat8E4M3FN(MlirType type);
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/// context.
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MLIR_CAPI_EXPORTED MlirType mlirFloat8E4M3FNTypeGet(MlirContext ctx);
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MLIR_CAPI_EXPORTED MlirStringRef mlirFloat8E4M3FNTypeGetName(void);
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/// Returns the typeID of an Float8E5M2FNUZ type.
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MLIR_CAPI_EXPORTED MlirTypeID mlirFloat8E5M2FNUZTypeGetTypeID(void);
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@@ -149,6 +165,8 @@ MLIR_CAPI_EXPORTED bool mlirTypeIsAFloat8E5M2FNUZ(MlirType type);
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/// context.
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MLIR_CAPI_EXPORTED MlirType mlirFloat8E5M2FNUZTypeGet(MlirContext ctx);
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MLIR_CAPI_EXPORTED MlirStringRef mlirFloat8E5M2FNUZTypeGetName(void);
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/// Returns the typeID of an Float8E4M3FNUZ type.
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MLIR_CAPI_EXPORTED MlirTypeID mlirFloat8E4M3FNUZTypeGetTypeID(void);
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@@ -159,6 +177,8 @@ MLIR_CAPI_EXPORTED bool mlirTypeIsAFloat8E4M3FNUZ(MlirType type);
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/// context.
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MLIR_CAPI_EXPORTED MlirType mlirFloat8E4M3FNUZTypeGet(MlirContext ctx);
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MLIR_CAPI_EXPORTED MlirStringRef mlirFloat8E4M3FNUZTypeGetName(void);
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/// Returns the typeID of an Float8E4M3B11FNUZ type.
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MLIR_CAPI_EXPORTED MlirTypeID mlirFloat8E4M3B11FNUZTypeGetTypeID(void);
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@@ -169,6 +189,8 @@ MLIR_CAPI_EXPORTED bool mlirTypeIsAFloat8E4M3B11FNUZ(MlirType type);
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/// context.
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MLIR_CAPI_EXPORTED MlirType mlirFloat8E4M3B11FNUZTypeGet(MlirContext ctx);
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MLIR_CAPI_EXPORTED MlirStringRef mlirFloat8E4M3B11FNUZTypeGetName(void);
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/// Returns the typeID of an Float8E3M4 type.
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MLIR_CAPI_EXPORTED MlirTypeID mlirFloat8E3M4TypeGetTypeID(void);
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@@ -179,6 +201,8 @@ MLIR_CAPI_EXPORTED bool mlirTypeIsAFloat8E3M4(MlirType type);
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/// context.
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MLIR_CAPI_EXPORTED MlirType mlirFloat8E3M4TypeGet(MlirContext ctx);
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MLIR_CAPI_EXPORTED MlirStringRef mlirFloat8E3M4TypeGetName(void);
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/// Returns the typeID of an Float8E8M0FNU type.
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MLIR_CAPI_EXPORTED MlirTypeID mlirFloat8E8M0FNUTypeGetTypeID(void);
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@@ -189,6 +213,8 @@ MLIR_CAPI_EXPORTED bool mlirTypeIsAFloat8E8M0FNU(MlirType type);
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/// context.
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MLIR_CAPI_EXPORTED MlirType mlirFloat8E8M0FNUTypeGet(MlirContext ctx);
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MLIR_CAPI_EXPORTED MlirStringRef mlirFloat8E8M0FNUTypeGetName(void);
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/// Returns the typeID of an BFloat16 type.
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MLIR_CAPI_EXPORTED MlirTypeID mlirBFloat16TypeGetTypeID(void);
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@@ -199,6 +225,8 @@ MLIR_CAPI_EXPORTED bool mlirTypeIsABF16(MlirType type);
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/// context.
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MLIR_CAPI_EXPORTED MlirType mlirBF16TypeGet(MlirContext ctx);
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MLIR_CAPI_EXPORTED MlirStringRef mlirBF16TypeGetName(void);
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/// Returns the typeID of an Float16 type.
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MLIR_CAPI_EXPORTED MlirTypeID mlirFloat16TypeGetTypeID(void);
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@@ -209,6 +237,8 @@ MLIR_CAPI_EXPORTED bool mlirTypeIsAF16(MlirType type);
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/// context.
210238
MLIR_CAPI_EXPORTED MlirType mlirF16TypeGet(MlirContext ctx);
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MLIR_CAPI_EXPORTED MlirStringRef mlirF16TypeGetName(void);
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/// Returns the typeID of an Float32 type.
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MLIR_CAPI_EXPORTED MlirTypeID mlirFloat32TypeGetTypeID(void);
214244

@@ -219,6 +249,8 @@ MLIR_CAPI_EXPORTED bool mlirTypeIsAF32(MlirType type);
219249
/// context.
220250
MLIR_CAPI_EXPORTED MlirType mlirF32TypeGet(MlirContext ctx);
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MLIR_CAPI_EXPORTED MlirStringRef mlirF32TypeGetName(void);
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/// Returns the typeID of an Float64 type.
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MLIR_CAPI_EXPORTED MlirTypeID mlirFloat64TypeGetTypeID(void);
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@@ -229,6 +261,8 @@ MLIR_CAPI_EXPORTED bool mlirTypeIsAF64(MlirType type);
229261
/// context.
230262
MLIR_CAPI_EXPORTED MlirType mlirF64TypeGet(MlirContext ctx);
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MLIR_CAPI_EXPORTED MlirStringRef mlirF64TypeGetName(void);
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/// Returns the typeID of a TF32 type.
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MLIR_CAPI_EXPORTED MlirTypeID mlirFloatTF32TypeGetTypeID(void);
234268

@@ -239,6 +273,8 @@ MLIR_CAPI_EXPORTED bool mlirTypeIsATF32(MlirType type);
239273
/// context.
240274
MLIR_CAPI_EXPORTED MlirType mlirTF32TypeGet(MlirContext ctx);
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MLIR_CAPI_EXPORTED MlirStringRef mlirTF32TypeGetName(void);
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//===----------------------------------------------------------------------===//
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// None type.
244280
//===----------------------------------------------------------------------===//
@@ -253,6 +289,8 @@ MLIR_CAPI_EXPORTED bool mlirTypeIsANone(MlirType type);
253289
/// context.
254290
MLIR_CAPI_EXPORTED MlirType mlirNoneTypeGet(MlirContext ctx);
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292+
MLIR_CAPI_EXPORTED MlirStringRef mlirNoneTypeGetName(void);
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//===----------------------------------------------------------------------===//
257295
// Complex type.
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//===----------------------------------------------------------------------===//
@@ -267,6 +305,8 @@ MLIR_CAPI_EXPORTED bool mlirTypeIsAComplex(MlirType type);
267305
/// the element type. The type is owned by the context.
268306
MLIR_CAPI_EXPORTED MlirType mlirComplexTypeGet(MlirType elementType);
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308+
MLIR_CAPI_EXPORTED MlirStringRef mlirComplexTypeGetName(void);
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/// Returns the element type of the given complex type.
271311
MLIR_CAPI_EXPORTED MlirType mlirComplexTypeGetElementType(MlirType type);
272312

@@ -341,6 +381,8 @@ MLIR_CAPI_EXPORTED MlirType mlirVectorTypeGet(intptr_t rank,
341381
const int64_t *shape,
342382
MlirType elementType);
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384+
MLIR_CAPI_EXPORTED MlirStringRef mlirVectorTypeGetName(void);
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/// Same as "mlirVectorTypeGet" but returns a nullptr wrapping MlirType on
345387
/// illegal arguments, emitting appropriate diagnostics.
346388
MLIR_CAPI_EXPORTED MlirType mlirVectorTypeGetChecked(MlirLocation loc,
@@ -402,6 +444,8 @@ MLIR_CAPI_EXPORTED MlirType mlirRankedTensorTypeGet(intptr_t rank,
402444
MlirType elementType,
403445
MlirAttribute encoding);
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447+
MLIR_CAPI_EXPORTED MlirStringRef mlirRankedTensorTypeGetName(void);
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405449
/// Same as "mlirRankedTensorTypeGet" but returns a nullptr wrapping MlirType on
406450
/// illegal arguments, emitting appropriate diagnostics.
407451
MLIR_CAPI_EXPORTED MlirType mlirRankedTensorTypeGetChecked(
@@ -416,6 +460,8 @@ MLIR_CAPI_EXPORTED MlirAttribute mlirRankedTensorTypeGetEncoding(MlirType type);
416460
/// context as the element type. The type is owned by the context.
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MLIR_CAPI_EXPORTED MlirType mlirUnrankedTensorTypeGet(MlirType elementType);
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463+
MLIR_CAPI_EXPORTED MlirStringRef mlirUnrankedTensorTypeGetName(void);
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419465
/// Same as "mlirUnrankedTensorTypeGet" but returns a nullptr wrapping MlirType
420466
/// on illegal arguments, emitting appropriate diagnostics.
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MLIR_CAPI_EXPORTED MlirType
@@ -446,6 +492,8 @@ MLIR_CAPI_EXPORTED MlirType mlirMemRefTypeGet(MlirType elementType,
446492
MlirAttribute layout,
447493
MlirAttribute memorySpace);
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495+
MLIR_CAPI_EXPORTED MlirStringRef mlirMemRefTypeGetName(void);
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/// Same as "mlirMemRefTypeGet" but returns a nullptr-wrapping MlirType o
450498
/// illegal arguments, emitting appropriate diagnostics.
451499
MLIR_CAPI_EXPORTED MlirType mlirMemRefTypeGetChecked(
@@ -471,6 +519,8 @@ MLIR_CAPI_EXPORTED MlirType mlirMemRefTypeContiguousGetChecked(
471519
MLIR_CAPI_EXPORTED MlirType
472520
mlirUnrankedMemRefTypeGet(MlirType elementType, MlirAttribute memorySpace);
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MLIR_CAPI_EXPORTED MlirStringRef mlirUnrankedMemRefTypeGetName(void);
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/// Same as "mlirUnrankedMemRefTypeGet" but returns a nullptr wrapping
475525
/// MlirType on illegal arguments, emitting appropriate diagnostics.
476526
MLIR_CAPI_EXPORTED MlirType mlirUnrankedMemRefTypeGetChecked(
@@ -511,6 +561,8 @@ MLIR_CAPI_EXPORTED MlirType mlirTupleTypeGet(MlirContext ctx,
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intptr_t numElements,
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MlirType const *elements);
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MLIR_CAPI_EXPORTED MlirStringRef mlirTupleTypeGetName(void);
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/// Returns the number of types contained in a tuple.
515567
MLIR_CAPI_EXPORTED intptr_t mlirTupleTypeGetNumTypes(MlirType type);
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@@ -534,6 +586,8 @@ MLIR_CAPI_EXPORTED MlirType mlirFunctionTypeGet(MlirContext ctx,
534586
intptr_t numResults,
535587
MlirType const *results);
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MLIR_CAPI_EXPORTED MlirStringRef mlirFunctionTypeGetName(void);
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/// Returns the number of input types.
538592
MLIR_CAPI_EXPORTED intptr_t mlirFunctionTypeGetNumInputs(MlirType type);
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@@ -565,6 +619,8 @@ MLIR_CAPI_EXPORTED MlirType mlirOpaqueTypeGet(MlirContext ctx,
565619
MlirStringRef dialectNamespace,
566620
MlirStringRef typeData);
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MLIR_CAPI_EXPORTED MlirStringRef mlirOpaqueTypeGetName(void);
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/// Returns the namespace of the dialect with which the given opaque type
569625
/// is associated. The namespace string is owned by the context.
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MLIR_CAPI_EXPORTED MlirStringRef

‎mlir/include/mlir-c/Dialect/AMDGPU.h‎

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@@ -29,6 +29,8 @@ MLIR_CAPI_EXPORTED MlirTypeID mlirAMDGPUTDMBaseTypeGetTypeID();
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MLIR_CAPI_EXPORTED MlirType mlirAMDGPUTDMBaseTypeGet(MlirContext ctx,
3030
MlirType elementType);
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MLIR_CAPI_EXPORTED MlirStringRef mlirAMDGPUTDMBaseTypeGetName(void);
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//===---------------------------------------------------------------------===//
3335
// TDMDescriptorType
3436
//===---------------------------------------------------------------------===//
@@ -39,6 +41,8 @@ MLIR_CAPI_EXPORTED MlirTypeID mlirAMDGPUTDMDescriptorTypeGetTypeID();
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MLIR_CAPI_EXPORTED MlirType mlirAMDGPUTDMDescriptorTypeGet(MlirContext ctx);
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44+
MLIR_CAPI_EXPORTED MlirStringRef mlirAMDGPUTDMDescriptorTypeGetName(void);
45+
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//===---------------------------------------------------------------------===//
4347
// TDMGatherBaseType
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//===---------------------------------------------------------------------===//
@@ -51,6 +55,8 @@ MLIR_CAPI_EXPORTED MlirType mlirAMDGPUTDMGatherBaseTypeGet(MlirContext ctx,
5155
MlirType elementType,
5256
MlirType indexType);
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58+
MLIR_CAPI_EXPORTED MlirStringRef mlirAMDGPUTDMGatherBaseTypeGetName(void);
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#ifdef __cplusplus
5561
}
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#endif

‎mlir/include/mlir-c/Dialect/EmitC.h‎

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@@ -41,6 +41,8 @@ MLIR_CAPI_EXPORTED MlirType mlirEmitCArrayTypeGet(intptr_t nDims,
4141
int64_t *shape,
4242
MlirType elementType);
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44+
MLIR_CAPI_EXPORTED MlirStringRef mlirEmitCArrayTypeGetName(void);
45+
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//===---------------------------------------------------------------------===//
4547
// LValueType
4648
//===---------------------------------------------------------------------===//
@@ -51,6 +53,8 @@ MLIR_CAPI_EXPORTED MlirTypeID mlirEmitCLValueTypeGetTypeID(void);
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MLIR_CAPI_EXPORTED MlirType mlirEmitCLValueTypeGet(MlirType valueType);
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56+
MLIR_CAPI_EXPORTED MlirStringRef mlirEmitCLValueTypeGetName(void);
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//===---------------------------------------------------------------------===//
5559
// OpaqueType
5660
//===---------------------------------------------------------------------===//
@@ -62,6 +66,8 @@ MLIR_CAPI_EXPORTED MlirTypeID mlirEmitCOpaqueTypeGetTypeID(void);
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MLIR_CAPI_EXPORTED MlirType mlirEmitCOpaqueTypeGet(MlirContext ctx,
6367
MlirStringRef value);
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MLIR_CAPI_EXPORTED MlirStringRef mlirEmitCOpaqueTypeGetName(void);
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//===---------------------------------------------------------------------===//
6672
// PointerType
6773
//===---------------------------------------------------------------------===//
@@ -72,6 +78,8 @@ MLIR_CAPI_EXPORTED MlirTypeID mlirEmitCPointerTypeGetTypeID(void);
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MLIR_CAPI_EXPORTED MlirType mlirEmitCPointerTypeGet(MlirType pointee);
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MLIR_CAPI_EXPORTED MlirStringRef mlirEmitCPointerTypeGetName(void);
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//===---------------------------------------------------------------------===//
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// PtrDiffTType
7785
//===---------------------------------------------------------------------===//
@@ -82,6 +90,8 @@ MLIR_CAPI_EXPORTED MlirTypeID mlirEmitCPtrDiffTTypeGetTypeID(void);
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8391
MLIR_CAPI_EXPORTED MlirType mlirEmitCPtrDiffTTypeGet(MlirContext ctx);
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MLIR_CAPI_EXPORTED MlirStringRef mlirEmitCPtrDiffTTypeGetName(void);
94+
8595
//===---------------------------------------------------------------------===//
8696
// SignedSizeTType
8797
//===---------------------------------------------------------------------===//
@@ -92,6 +102,8 @@ MLIR_CAPI_EXPORTED MlirTypeID mlirEmitCSignedSizeTTypeGetTypeID(void);
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MLIR_CAPI_EXPORTED MlirType mlirEmitCSignedSizeTTypeGet(MlirContext ctx);
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MLIR_CAPI_EXPORTED MlirStringRef mlirEmitCSignedSizeTTypeGetName(void);
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//===---------------------------------------------------------------------===//
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// SizeTType
97109
//===---------------------------------------------------------------------===//
@@ -102,6 +114,8 @@ MLIR_CAPI_EXPORTED MlirTypeID mlirEmitCSizeTTypeGetTypeID(void);
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MLIR_CAPI_EXPORTED MlirType mlirEmitCSizeTTypeGet(MlirContext ctx);
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MLIR_CAPI_EXPORTED MlirStringRef mlirEmitCSizeTTypeGetName(void);
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//===----------------------------------------------------------------------===//
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// CmpPredicate attribute.
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//===----------------------------------------------------------------------===//

‎mlir/include/mlir-c/Dialect/GPU.h‎

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Original file line numberDiff line numberDiff line change
@@ -27,6 +27,8 @@ MLIR_CAPI_EXPORTED bool mlirTypeIsAGPUAsyncTokenType(MlirType type);
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MLIR_CAPI_EXPORTED MlirType mlirGPUAsyncTokenTypeGet(MlirContext ctx);
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MLIR_CAPI_EXPORTED MlirStringRef mlirGPUAsyncTokenTypeGetName(void);
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//===---------------------------------------------------------------------===//
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// ObjectAttr
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//===---------------------------------------------------------------------===//

‎mlir/include/mlir-c/Dialect/LLVM.h‎

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@@ -23,6 +23,8 @@ MLIR_DECLARE_CAPI_DIALECT_REGISTRATION(LLVM, llvm);
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MLIR_CAPI_EXPORTED MlirType mlirLLVMPointerTypeGet(MlirContext ctx,
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MLIR_CAPI_EXPORTED MlirStringRef mlirLLVMPointerTypeGetName(void);
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MLIR_CAPI_EXPORTED MlirTypeID mlirLLVMPointerTypeGetTypeID(void);
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/// Returns `true` if the type is an LLVM dialect pointer type.
@@ -35,10 +37,14 @@ mlirLLVMPointerTypeGetAddressSpace(MlirType pointerType);
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/// Creates an llmv.void type.
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MLIR_CAPI_EXPORTED MlirType mlirLLVMVoidTypeGet(MlirContext ctx);
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MLIR_CAPI_EXPORTED MlirStringRef mlirLLVMVoidTypeGetName(void);
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/// Creates an llvm.array type.
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MLIR_CAPI_EXPORTED MlirType mlirLLVMArrayTypeGet(MlirType elementType,
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MLIR_CAPI_EXPORTED MlirStringRef mlirLLVMArrayTypeGetName(void);
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/// Returns the element type of the llvm.array type.
4349
MLIR_CAPI_EXPORTED MlirType mlirLLVMArrayTypeGetElementType(MlirType type);
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@@ -47,6 +53,8 @@ MLIR_CAPI_EXPORTED MlirType
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mlirLLVMFunctionTypeGet(MlirType resultType, intptr_t nArgumentTypes,
4854
MlirType const *argumentTypes, bool isVarArg);
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MLIR_CAPI_EXPORTED MlirStringRef mlirLLVMFunctionTypeGetName(void);
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/// Returns the number of input types.
5159
MLIR_CAPI_EXPORTED intptr_t mlirLLVMFunctionTypeGetNumInputs(MlirType type);
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@@ -62,6 +70,8 @@ MLIR_CAPI_EXPORTED bool mlirTypeIsALLVMStructType(MlirType type);
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MLIR_CAPI_EXPORTED MlirTypeID mlirLLVMStructTypeGetTypeID(void);
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MLIR_CAPI_EXPORTED MlirStringRef mlirLLVMStructTypeGetName(void);
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/// Returns `true` if the type is a literal (unnamed) LLVM struct type.
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MLIR_CAPI_EXPORTED bool mlirLLVMStructTypeIsLiteral(MlirType type);
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