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49 lines
2.7 KiB
Plaintext
49 lines
2.7 KiB
Plaintext
// RUN: fir-opt --canonicalize --split-input-file %s | FileCheck %s
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// Verify that fir.rebox is NOT folded into fir.array_coor when the rebox
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// result is used by an acc.copyin. The data legalization pipeline depends on
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// the copyin's var (the rebox result) matching the value used inside compute
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// regions; folding would break this chain and produce an illegal live-in.
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// CHECK-LABEL: func.func @test_acc_copyin_preserves_rebox(
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// CHECK-SAME: %[[BOX:.*]]: !fir.box<!fir.array<?xf32>>,
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// CHECK-SAME: %[[VAL:.*]]: f32) -> !fir.ref<f32> {
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// CHECK: %[[C1:.*]] = arith.constant 1 : index
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// CHECK: %[[REBOX:.*]] = fir.rebox %[[BOX]]
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// CHECK: %[[COPYIN:.*]] = acc.copyin var(%[[REBOX]]
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// CHECK: acc.parallel dataOperands(%[[COPYIN]] :
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// CHECK: %[[COOR:.*]] = fir.array_coor %[[REBOX]] %[[C1]]
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// CHECK: fir.store %[[VAL]] to %[[COOR]]
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// CHECK: acc.yield
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// CHECK: }
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// CHECK: acc.copyout accVar(%[[COPYIN]]
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// CHECK: %[[COOR_OUT:.*]] = fir.array_coor %[[BOX]] %[[C1]]
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// CHECK: return %[[COOR_OUT]] : !fir.ref<f32>
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func.func @test_acc_copyin_preserves_rebox(%arg0: !fir.box<!fir.array<?xf32>>, %arg1: f32) -> !fir.ref<f32> {
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%c1 = arith.constant 1 : index
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%0 = fir.rebox %arg0 : (!fir.box<!fir.array<?xf32>>) -> !fir.box<!fir.array<?xf32>>
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%1 = acc.copyin var(%0 : !fir.box<!fir.array<?xf32>>) -> !fir.box<!fir.array<?xf32>> {dataClause = #acc<data_clause acc_copy>, name = "array"}
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acc.parallel dataOperands(%1 : !fir.box<!fir.array<?xf32>>) {
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%2 = fir.array_coor %0 %c1 : (!fir.box<!fir.array<?xf32>>, index) -> !fir.ref<f32>
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fir.store %arg1 to %2 : !fir.ref<f32>
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acc.yield
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} attributes {defaultAttr = #acc<defaultvalue none>}
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acc.copyout accPtr(%1 : !fir.box<!fir.array<?xf32>>) to varPtr(%0 : !fir.box<!fir.array<?xf32>>) {dataClause = #acc<data_clause acc_copy>, name = "array"}
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%3 = fir.array_coor %0 %c1 : (!fir.box<!fir.array<?xf32>>, index) -> !fir.ref<f32>
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return %3 : !fir.ref<f32>
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}
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// -----
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// Same scenario but without acc.copyin: rebox SHOULD be folded normally.
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// CHECK-LABEL: func.func @test_no_acc_folds_rebox(
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// CHECK-SAME: %[[BOX:.*]]: !fir.box<!fir.array<?xf32>>) -> !fir.ref<f32> {
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// CHECK: %[[C1:.*]] = arith.constant 1 : index
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// CHECK: %[[COOR:.*]] = fir.array_coor %[[BOX]] %[[C1]]
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// CHECK: return %[[COOR]] : !fir.ref<f32>
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func.func @test_no_acc_folds_rebox(%arg0: !fir.box<!fir.array<?xf32>>) -> !fir.ref<f32> {
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%c1 = arith.constant 1 : index
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%0 = fir.rebox %arg0 : (!fir.box<!fir.array<?xf32>>) -> !fir.box<!fir.array<?xf32>>
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%2 = fir.array_coor %0 %c1 : (!fir.box<!fir.array<?xf32>>, index) -> !fir.ref<f32>
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return %2 : !fir.ref<f32>
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}
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