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>
30 lines
1.3 KiB
MLIR
30 lines
1.3 KiB
MLIR
/// Verify that converts are only generated one per fir.declare
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// RUN: fir-opt %s --fir-to-memref --allow-unregistered-dialect | FileCheck %s
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// Derived from
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// do i = 1, n
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// a(i) = i
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// call y(i)
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// call z(i)
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// enddo
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// CHECK-LABEL: func.func @x_
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// CHECK: [[ALLOCA:%.+]] = memref.alloca() {bindc_name = "i"} : memref<i32>
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// CHECK-NEXT: [[CONVERT0:%[0-9]]] = fir.convert [[ALLOCA]] : (memref<i32>) -> !fir.ref<i32>
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// CHECK-NEXT: [[DECLARE:%[0-9]]] = fir.declare [[CONVERT0]]
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// CHECK-NEXT: [[CONVERT1:%[0-9]]] = fir.convert [[DECLARE]] : (!fir.ref<i32>) -> memref<i32>
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// CHECK-NEXT: [[LOAD:%[0-9]]] = memref.load [[CONVERT1]]
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// CHECK-NEXT: [[CONVERT2:%[0-9]]] = fir.convert [[CONVERT1]] : (memref<i32>) -> !fir.ref<i32>
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// CHECK-NEXT: fir.call @y_([[CONVERT2]])
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// CHECK-NEXT: [[CONVERT3:%[0-9]]] = fir.convert [[CONVERT1]] : (memref<i32>) -> !fir.ref<i32>
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// CHECK-NEXT: fir.call @z_([[CONVERT3]])
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func.func @x_() attributes {fir.internal_name = "_QPx"} {
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%1 = fir.alloca i32 {bindc_name = "i"}
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%2 = fir.declare %1 {uniq_name = "_QFxEi"} : (!fir.ref<i32>) -> !fir.ref<i32>
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%3 = fir.load %2 : !fir.ref<i32>
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fir.call @y_(%2) fastmath<contract> : (!fir.ref<i32>) -> ()
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fir.call @z_(%2) fastmath<contract> : (!fir.ref<i32>) -> ()
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return
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}
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