diff --git a/mlir/test/Integration/Dialect/Memref/memref_abi.c b/mlir/test/Integration/Dialect/Memref/memref_abi.c new file mode 100644 --- /dev/null +++ b/mlir/test/Integration/Dialect/Memref/memref_abi.c @@ -0,0 +1,173 @@ +// Split the MLIR string: this will produce %t/input.mlir +// RUN: split-file %s %t + +// Compile the MLIR file to LLVM: +// RUN: mlir-opt %t/input.mlir \ +// RUN: -lower-affine -convert-scf-to-std -convert-memref-to-llvm \ +// RUN: -convert-std-to-llvm -reconcile-unrealized-casts \ +// RUN: | mlir-translate --mlir-to-llvmir -o %t.ll + +// Generate an object file for the MLIR code +// RUN: llc %t.ll -o %t.o -filetype=obj + +// Compile the current C file and link it to the MLIR code: +// RUN: %host_cc %s %t.o -o %t.exe + +// Exec +// RUN: %t.exe | FileCheck %s + +/* MLIR_BEGIN +//--- input.mlir +// Performs: arg0[i, j] = arg0[i, j] + arg1[i, j] +func private @add_memref(%arg0: memref, %arg1: memref) -> i64 + attributes {llvm.emit_c_interface} { + %c0 = arith.constant 0 : index + %c1 = arith.constant 1 : index + %dimI = memref.dim %arg0, %c0 : memref + %dimJ = memref.dim %arg0, %c1 : memref + affine.for %i = 0 to %dimI { + affine.for %j = 0 to %dimJ { + %load0 = memref.load %arg0[%i, %j] : memref + %load1 = memref.load %arg1[%i, %j] : memref + %add = arith.addf %load0, %load1 : f64 + affine.store %add, %arg0[%i, %j] : memref + } + } + %c42 = arith.constant 42 : i64 + return %c42 : i64 +} + +//--- end_input.mlir + +MLIR_END */ + +#include +#include + +// Define the API for the MLIR function, see +// https://mlir.llvm.org/docs/TargetLLVMIR/#calling-conventions for details. +// +// The function takes two 2D memref, the signature in MLIR LLVM dialect will be: +// llvm.func @add_memref( +// // First Memref (%arg0) +// %allocated_ptr0: !llvm.ptr, %aligned_ptr0: !llvm.ptr, +// %offset0: i64, %size0_d0: i64, %size0_d1: i64, %stride0_d0: i64, +// %stride0_d1: i64, +// // Second Memref (%arg1) +// %allocated_ptr1: !llvm.ptr, %aligned_ptr1: !llvm.ptr, +// %offset1: i64, %size1_d0: i64, %size1_d1: i64, %stride1_d0: i64, +// %stride1_d1: i64, +// +long long add_memref(double *allocated_ptr0, double *aligned_ptr0, + intptr_t offset0, intptr_t size0_d0, intptr_t size0_d1, + intptr_t stride0_d0, intptr_t stride0_d1, + // Second Memref (%arg1) + double *allocated_ptr1, double *aligned_ptr1, + intptr_t offset1, intptr_t size1_d0, intptr_t size1_d1, + intptr_t stride1_d0, intptr_t stride1_d1); + +// The llvm.emit_c_interface will also trigger emission of another wrapper: +// llvm.func @_mlir_ciface_add_memref( +// %arg0: !llvm.ptr, ptr, i64, +// array<2 x i64>, array<2 x i64>)>>, +// %arg1: !llvm.ptr, ptr, i64, +// array<2 x i64>, array<2 x i64>)>>) +// -> i64 +typedef struct { + double *allocated; + double *aligned; + intptr_t offset; + intptr_t size[2]; + intptr_t stride[2]; +} memref_2d_descriptor; +long long _mlir_ciface_add_memref(memref_2d_descriptor *arg0, + memref_2d_descriptor *arg1); + +#define N 4 +#define M 8 +double arg0[N][M]; +double arg1[N][M]; + +void dump() { + for (int i = 0; i < N; i++) { + printf("["); + for (int j = 0; j < M; j++) + printf("%d,\t", (int)arg0[i][j]); + printf("] ["); + for (int j = 0; j < M; j++) + printf("%d,\t", (int)arg1[i][j]); + printf("]\n"); + } +} + +int main() { + int count = 0; + for (int i = 0; i < N; i++) { + for (int j = 0; j < M; j++) { + arg0[i][j] = count++; + arg1[i][j] = count++; + } + } + printf("Before:\n"); + dump(); + // clang-format off + // CHECK-LABEL: Before: + // CHECK: [0, 2, 4, 6, 8, 10, 12, 14, ] [1, 3, 5, 7, 9, 11, 13, 15, ] + // CHECK: [16, 18, 20, 22, 24, 26, 28, 30, ] [17, 19, 21, 23, 25, 27, 29, 31, ] + // CHECK: [32, 34, 36, 38, 40, 42, 44, 46, ] [33, 35, 37, 39, 41, 43, 45, 47, ] + // CHECK: [48, 50, 52, 54, 56, 58, 60, 62, ] [49, 51, 53, 55, 57, 59, 61, 63, ] + // clang-format on + + // Call into MLIR. + long long result = add_memref((double *)arg0, (double *)arg0, 0, N, M, M, 0, + // + (double *)arg1, (double *)arg1, 0, N, M, M, 0); + + // CHECK-LABEL: Result: + // CHECK: 42 + printf("Result: %d\n", (int)result); + + printf("After:\n"); + dump(); + + // clang-format off + // CHECK-LABEL: After: + // CHECK: [1, 5, 9, 13, 17, 21, 25, 29, ] [1, 3, 5, 7, 9, 11, 13, 15, ] + // CHECK: [33, 37, 41, 45, 49, 53, 57, 61, ] [17, 19, 21, 23, 25, 27, 29, 31, ] + // CHECK: [65, 69, 73, 77, 81, 85, 89, 93, ] [33, 35, 37, 39, 41, 43, 45, 47, ] + // CHECK: [97, 101, 105, 109, 113, 117, 121, 125, ] [49, 51, 53, 55, 57, 59, 61, 63, ] + // clang-format on + + // Reset the input and re-apply the same function use the C API wrapper. + count = 0; + for (int i = 0; i < N; i++) { + for (int j = 0; j < M; j++) { + arg0[i][j] = count++; + arg1[i][j] = count++; + } + } + + // Call into MLIR. + memref_2d_descriptor arg0_descriptor = { + (double *)arg0, (double *)arg0, 0, N, M, M, 0}; + memref_2d_descriptor arg1_descriptor = { + (double *)arg1, (double *)arg1, 0, N, M, M, 0}; + result = _mlir_ciface_add_memref(&arg0_descriptor, &arg1_descriptor); + + // CHECK-LABEL: Result2: + // CHECK: 42 + printf("Result2: %d\n", (int)result); + + printf("After2:\n"); + dump(); + + // clang-format off + // CHECK-LABEL: After2: + // CHECK: [1, 5, 9, 13, 17, 21, 25, 29, ] [1, 3, 5, 7, 9, 11, 13, 15, ] + // CHECK: [33, 37, 41, 45, 49, 53, 57, 61, ] [17, 19, 21, 23, 25, 27, 29, 31, ] + // CHECK: [65, 69, 73, 77, 81, 85, 89, 93, ] [33, 35, 37, 39, 41, 43, 45, 47, ] + // CHECK: [97, 101, 105, 109, 113, 117, 121, 125, ] [49, 51, 53, 55, 57, 59, 61, 63, ] + // clang-format on + + return 0; +} diff --git a/mlir/test/lit.cfg.py b/mlir/test/lit.cfg.py --- a/mlir/test/lit.cfg.py +++ b/mlir/test/lit.cfg.py @@ -21,7 +21,7 @@ config.test_format = lit.formats.ShTest(not llvm_config.use_lit_shell) # suffixes: A list of file extensions to treat as test files. -config.suffixes = ['.td', '.mlir', '.toy', '.ll', '.tc', '.py', '.yaml', '.test', '.pdll'] +config.suffixes = ['.td', '.mlir', '.toy', '.ll', '.tc', '.py', '.yaml', '.test', '.pdll', '.c'] # test_source_root: The root path where tests are located. config.test_source_root = os.path.dirname(__file__) @@ -32,6 +32,8 @@ config.substitutions.append(('%PATH%', config.environment['PATH'])) config.substitutions.append(('%shlibext', config.llvm_shlib_ext)) config.substitutions.append(("%mlir_src_root", config.mlir_src_root)) +config.substitutions.append(("%host_cxx", config.host_cxx)) +config.substitutions.append(("%host_cc", config.host_cc)) llvm_config.with_system_environment( ['HOME', 'INCLUDE', 'LIB', 'TMP', 'TEMP'])