fc8b2bf2f8
Add support for importing `dereferenceable` and `dereferenceable_or_null` metadata into LLVM dialect. Add a new attribute which models these two metadata nodes and a new OpInterface.
25 lines
1.1 KiB
MLIR
25 lines
1.1 KiB
MLIR
// RUN: mlir-translate -mlir-to-llvmir -split-input-file %s | FileCheck %s
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llvm.func @deref(%arg0: i64, %arg1: !llvm.ptr) {
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// CHECK: inttoptr {{.*}} !dereferenceable [[D0:![0-9]+]]
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%0 = llvm.inttoptr %arg0 dereferenceable<bytes = 4> : i64 to !llvm.ptr
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%1 = llvm.load %0 {alignment = 4 : i64} : !llvm.ptr -> i32
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// CHECK: load {{.*}} !dereferenceable [[D1:![0-9]+]]
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%2 = llvm.load %arg1 dereferenceable<bytes = 8> {alignment = 8 : i64} : !llvm.ptr -> !llvm.ptr
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llvm.store %1, %2 {alignment = 4 : i64} : i32, !llvm.ptr
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llvm.return
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}
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llvm.func @deref_or_null(%arg0: i64, %arg1: !llvm.ptr) {
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// CHECK: inttoptr {{.*}} !dereferenceable_or_null [[D0]]
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%0 = llvm.inttoptr %arg0 dereferenceable<bytes = 4, mayBeNull = true> : i64 to !llvm.ptr
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%1 = llvm.load %0 {alignment = 4 : i64} : !llvm.ptr -> i32
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// CHECK: load {{.*}} !dereferenceable_or_null [[D1]]
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%2 = llvm.load %arg1 dereferenceable<bytes = 8, mayBeNull = true> {alignment = 8 : i64} : !llvm.ptr -> !llvm.ptr
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llvm.store %1, %2 {alignment = 4 : i64} : i32, !llvm.ptr
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llvm.return
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}
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// CHECK: [[D0]] = !{i64 4}
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// CHECK: [[D1]] = !{i64 8}
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