2698d15664
This patch introduces FIRToMemRef, a lowering pass that converts FIR memory operations to the MemRef dialect, including support for slices, shifts, and descriptor-style access patterns. To support partial lowering, where FIR and MemRef types can coexist, we extend the handling of fir.convert to correctly marshal between FIR reference-like types and MemRef descriptors. The patch also factors the type conversion logic into a reusable FIRToMemRefTypeConverter, which centralizes the rules for converting FIR types (e.g. !fir.ref, !fir.box, sequences, logicals) to their corresponding memref types, and is used throughout the new pass. --------- Co-authored-by: Scott Manley <rscottmanley@gmail.com> Co-authored-by: jeanPerier <jean.perier.polytechnique@gmail.com>
32 lines
1.9 KiB
MLIR
32 lines
1.9 KiB
MLIR
// Test conversions to index
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// RUN: fir-opt %s --fir-to-memref --allow-unregistered-dialect | FileCheck %s
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// CHECK-LABEL: func.func @load_array1d_var
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// CHECK: [[C3:%.+]] = arith.constant 3 : index
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// CHECK: [[DUMMY:%.+]] = fir.undefined !fir.dscope
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// CHECK: [[SHAPE:%.+]] = fir.shape [[C3]] : (index) -> !fir.shape<1>
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// CHECK: [[DECLARE0:%.+]] = fir.declare %arg0([[SHAPE]]) dummy_scope [[DUMMY]]
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// CHECK: [[DECLARE1:%.+]] = fir.declare %arg1 dummy_scope [[DUMMY]]
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// CHECK: [[CONVERT1:%.+]] = fir.convert [[DECLARE1]] : (!fir.ref<i64>) -> memref<i64>
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// CHECK: [[LOAD:%[0-9]+]] = memref.load [[CONVERT1]][] : memref<i64>
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// CHECK: [[CONVERT0:%.+]] = fir.convert [[DECLARE0]] : (!fir.ref<!fir.array<3xf32>>) -> memref<3xf32>
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// CHECK: [[C1:%.+]] = arith.constant 1 : index
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// CHECK-NEXT: [[C0:%.+]] = arith.constant 0 : index
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// CHECK-NEXT: [[CAST:%[0-9]+]] = arith.index_cast [[LOAD]] : i64 to index
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// CHECK: [[SUB:%.+]] = arith.subi [[CAST]], [[C1]] : index
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// CHECK-NEXT: [[MUL:%.+]] = arith.muli [[SUB]], [[C1]] : index
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// CHECK-NEXT: [[SUBA:%.+]] = arith.subi [[C1]], [[C1]] : index
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// CHECK-NEXT: [[ADD:%.+]] = arith.addi [[MUL]], [[SUBA]] : index
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// CHECK-NEXT: memref.load [[CONVERT0]][[[ADD]]] : memref<3xf32>
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func.func @load_array1d_var(%arg0: !fir.ref<!fir.array<3xf32>>, %arg1: !fir.ref<i64>) {
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%c3 = arith.constant 3 : index
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%0 = fir.undefined !fir.dscope
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%shape = fir.shape %c3 : (index) -> !fir.shape<1>
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%1 = fir.declare %arg0(%shape) dummy_scope %0 {uniq_name = "a"} : (!fir.ref<!fir.array<3xf32>>, !fir.shape<1>, !fir.dscope) -> !fir.ref<!fir.array<3xf32>>
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%2 = fir.declare %arg1 dummy_scope %0 {uniq_name = "i"} : (!fir.ref<i64>, !fir.dscope) -> !fir.ref<i64>
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%3 = fir.load %2 : !fir.ref<i64>
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%4 = fir.array_coor %1(%shape) %3 : (!fir.ref<!fir.array<3xf32>>, !fir.shape<1>, i64) -> !fir.ref<f32>
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%5 = fir.load %4 : !fir.ref<f32>
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return
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} |