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>
31 lines
1.7 KiB
MLIR
31 lines
1.7 KiB
MLIR
// RUN: fir-opt %s --fir-to-memref --allow-unregistered-dialect | FileCheck %s
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// CHECK-LABEL: func.func @load_scalar
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// CHECK: [[DUMMY:%0]] = fir.undefined !fir.dscope
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// CHECK-NEXT: [[DECLARE:%[0-9]+]] = fir.declare %arg0 dummy_scope [[DUMMY]]
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// CHECK-NEXT: [[CONVERT:%[0-9]+]] = fir.convert [[DECLARE]] : (!fir.ref<!fir.logical<4>>) -> memref<i32>
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// CHECK-NEXT: [[LOAD:%[0-9]+]] = memref.load [[CONVERT]][] : memref<i32>
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// CHECK-NEXT: fir.convert [[LOAD]] : (i32) -> !fir.logical<4>
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func.func @load_scalar(%arg0: !fir.ref<!fir.logical<4>>) {
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%0 = fir.undefined !fir.dscope
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%1 = fir.declare %arg0 dummy_scope %0 {uniq_name = "a"} : (!fir.ref<!fir.logical<4>>, !fir.dscope) -> !fir.ref<!fir.logical<4>>
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%2 = fir.load %1 : !fir.ref<!fir.logical<4>>
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return
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}
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// CHECK-LABEL: func.func @store_scalar
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// CHECK: [[CONSTTRUE:%.+]] = arith.constant true
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// CHECK: [[DUMMY:%0]] = fir.undefined !fir.dscope
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// CHECK: [[DECLARE:%[0-9]+]] = fir.declare %arg0 dummy_scope [[DUMMY]]
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// CHECK-NEXT: [[CONVERT:%[0-9]+]] = fir.convert [[CONSTTRUE]] : (i1) -> !fir.logical<4>
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// CHECK-NEXT: [[CONVERT1:%[0-9]+]] = fir.convert [[DECLARE]] : (!fir.ref<!fir.logical<4>>) -> memref<i32>
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// CHECK-NEXT: [[INT:%[0-9]+]] = fir.convert [[CONVERT]] : (!fir.logical<4>) -> i32
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// CHECK-NEXT: memref.store [[INT]], [[CONVERT1]][] : memref<i32>
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func.func @store_scalar(%arg0: !fir.ref<!fir.logical<4>>) {
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%true = arith.constant true
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%0 = fir.undefined !fir.dscope
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%1 = fir.declare %arg0 dummy_scope %0 {uniq_name = "b"} : (!fir.ref<!fir.logical<4>>, !fir.dscope) -> !fir.ref<!fir.logical<4>>
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%2 = fir.convert %true : (i1) -> !fir.logical<4>
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fir.store %2 to %1 : !fir.ref<!fir.logical<4>>
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return
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}
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