xref: /llvm-project/mlir/test/Conversion/FuncToLLVM/func-memref-return.mlir (revision acc159aea1e641e3694ab8fe5faa231788077011)
1// RUN: mlir-opt -convert-func-to-llvm -reconcile-unrealized-casts %s | FileCheck %s
2
3// RUN: mlir-opt -convert-func-to-llvm='use-bare-ptr-memref-call-conv=1' -reconcile-unrealized-casts %s | FileCheck %s --check-prefix=BAREPTR
4
5// RUN: mlir-opt -transform-interpreter -reconcile-unrealized-casts %s | FileCheck %s --check-prefix=BAREPTR
6
7// These tests were separated from func-memref.mlir because applying
8// -reconcile-unrealized-casts resulted in `llvm.extractvalue` ops getting
9// folded away.
10
11// CHECK-LABEL: func @check_static_return
12// CHECK-COUNT-2: !llvm.ptr
13// CHECK-COUNT-5: i64
14// CHECK-SAME: -> !llvm.struct<(ptr, ptr, i64, array<2 x i64>, array<2 x i64>)>
15// BAREPTR-LABEL: func @check_static_return
16// BAREPTR-SAME: (%[[arg:.*]]: !llvm.ptr) -> !llvm.ptr {
17func.func @check_static_return(%static : memref<32x18xf32>) -> memref<32x18xf32> {
18// CHECK:  llvm.return %{{.*}} : !llvm.struct<(ptr, ptr, i64, array<2 x i64>, array<2 x i64>)>
19
20// BAREPTR: %[[udf:.*]] = llvm.mlir.undef : !llvm.struct<(ptr, ptr, i64, array<2 x i64>, array<2 x i64>)>
21// BAREPTR-NEXT: %[[base0:.*]] = llvm.insertvalue %[[arg]], %[[udf]][0] : !llvm.struct<(ptr, ptr, i64, array<2 x i64>, array<2 x i64>)>
22// BAREPTR-NEXT: %[[aligned:.*]] = llvm.insertvalue %[[arg]], %[[base0]][1] : !llvm.struct<(ptr, ptr, i64, array<2 x i64>, array<2 x i64>)>
23// BAREPTR-NEXT: %[[val0:.*]] = llvm.mlir.constant(0 : index) : i64
24// BAREPTR-NEXT: %[[ins0:.*]] = llvm.insertvalue %[[val0]], %[[aligned]][2] : !llvm.struct<(ptr, ptr, i64, array<2 x i64>, array<2 x i64>)>
25// BAREPTR-NEXT: %[[val1:.*]] = llvm.mlir.constant(32 : index) : i64
26// BAREPTR-NEXT: %[[ins1:.*]] = llvm.insertvalue %[[val1]], %[[ins0]][3, 0] : !llvm.struct<(ptr, ptr, i64, array<2 x i64>, array<2 x i64>)>
27// BAREPTR-NEXT: %[[val2:.*]] = llvm.mlir.constant(18 : index) : i64
28// BAREPTR-NEXT: %[[ins2:.*]] = llvm.insertvalue %[[val2]], %[[ins1]][4, 0] : !llvm.struct<(ptr, ptr, i64, array<2 x i64>, array<2 x i64>)>
29// BAREPTR-NEXT: %[[val3:.*]] = llvm.mlir.constant(18 : index) : i64
30// BAREPTR-NEXT: %[[ins3:.*]] = llvm.insertvalue %[[val3]], %[[ins2]][3, 1] : !llvm.struct<(ptr, ptr, i64, array<2 x i64>, array<2 x i64>)>
31// BAREPTR-NEXT: %[[val4:.*]] = llvm.mlir.constant(1 : index) : i64
32// BAREPTR-NEXT: %[[ins4:.*]] = llvm.insertvalue %[[val4]], %[[ins3]][4, 1] : !llvm.struct<(ptr, ptr, i64, array<2 x i64>, array<2 x i64>)>
33// BAREPTR-NEXT: %[[base1:.*]] = llvm.extractvalue %[[ins4]][0] : !llvm.struct<(ptr, ptr, i64, array<2 x i64>, array<2 x i64>)>
34// BAREPTR-NEXT: llvm.return %[[base1]] : !llvm.ptr
35  return %static : memref<32x18xf32>
36}
37
38// CHECK-LABEL: func @check_static_return_with_offset
39// CHECK-COUNT-2: !llvm.ptr
40// CHECK-COUNT-5: i64
41// CHECK-SAME: -> !llvm.struct<(ptr, ptr, i64, array<2 x i64>, array<2 x i64>)>
42// BAREPTR-LABEL: func @check_static_return_with_offset
43// BAREPTR-SAME: (%[[arg:.*]]: !llvm.ptr) -> !llvm.ptr {
44func.func @check_static_return_with_offset(%static : memref<32x18xf32, strided<[22,1], offset: 7>>) -> memref<32x18xf32, strided<[22,1], offset: 7>> {
45// CHECK:  llvm.return %{{.*}} : !llvm.struct<(ptr, ptr, i64, array<2 x i64>, array<2 x i64>)>
46
47// BAREPTR: %[[udf:.*]] = llvm.mlir.undef : !llvm.struct<(ptr, ptr, i64, array<2 x i64>, array<2 x i64>)>
48// BAREPTR-NEXT: %[[base0:.*]] = llvm.insertvalue %[[arg]], %[[udf]][0] : !llvm.struct<(ptr, ptr, i64, array<2 x i64>, array<2 x i64>)>
49// BAREPTR-NEXT: %[[aligned:.*]] = llvm.insertvalue %[[arg]], %[[base0]][1] : !llvm.struct<(ptr, ptr, i64, array<2 x i64>, array<2 x i64>)>
50// BAREPTR-NEXT: %[[val0:.*]] = llvm.mlir.constant(7 : index) : i64
51// BAREPTR-NEXT: %[[ins0:.*]] = llvm.insertvalue %[[val0]], %[[aligned]][2] : !llvm.struct<(ptr, ptr, i64, array<2 x i64>, array<2 x i64>)>
52// BAREPTR-NEXT: %[[val1:.*]] = llvm.mlir.constant(32 : index) : i64
53// BAREPTR-NEXT: %[[ins1:.*]] = llvm.insertvalue %[[val1]], %[[ins0]][3, 0] : !llvm.struct<(ptr, ptr, i64, array<2 x i64>, array<2 x i64>)>
54// BAREPTR-NEXT: %[[val2:.*]] = llvm.mlir.constant(22 : index) : i64
55// BAREPTR-NEXT: %[[ins2:.*]] = llvm.insertvalue %[[val2]], %[[ins1]][4, 0] : !llvm.struct<(ptr, ptr, i64, array<2 x i64>, array<2 x i64>)>
56// BAREPTR-NEXT: %[[val3:.*]] = llvm.mlir.constant(18 : index) : i64
57// BAREPTR-NEXT: %[[ins3:.*]] = llvm.insertvalue %[[val3]], %[[ins2]][3, 1] : !llvm.struct<(ptr, ptr, i64, array<2 x i64>, array<2 x i64>)>
58// BAREPTR-NEXT: %[[val4:.*]] = llvm.mlir.constant(1 : index) : i64
59// BAREPTR-NEXT: %[[ins4:.*]] = llvm.insertvalue %[[val4]], %[[ins3]][4, 1] : !llvm.struct<(ptr, ptr, i64, array<2 x i64>, array<2 x i64>)>
60// BAREPTR-NEXT: %[[base1:.*]] = llvm.extractvalue %[[ins4]][0] : !llvm.struct<(ptr, ptr, i64, array<2 x i64>, array<2 x i64>)>
61// BAREPTR-NEXT: llvm.return %[[base1]] : !llvm.ptr
62  return %static : memref<32x18xf32, strided<[22,1], offset: 7>>
63}
64
65
66// BAREPTR: llvm.func @foo(!llvm.ptr) -> !llvm.ptr
67func.func private @foo(memref<10xi8>) -> memref<20xi8>
68
69// BAREPTR-LABEL: func @check_memref_func_call
70// BAREPTR-SAME:    %[[in:.*]]: !llvm.ptr) -> !llvm.ptr
71func.func @check_memref_func_call(%in : memref<10xi8>) -> memref<20xi8> {
72  // BAREPTR:         %[[inDesc:.*]] = llvm.insertvalue %{{.*}}, %{{.*}}[4, 0]
73  // BAREPTR-NEXT:    %[[barePtr:.*]] = llvm.extractvalue %[[inDesc]][1] : !llvm.struct<(ptr, ptr, i64, array<1 x i64>, array<1 x i64>)>
74  // BAREPTR-NEXT:    %[[call:.*]] = llvm.call @foo(%[[barePtr]]) : (!llvm.ptr) -> !llvm.ptr
75  // BAREPTR-NEXT:    %[[desc0:.*]] = llvm.mlir.undef : !llvm.struct<(ptr, ptr, i64, array<1 x i64>, array<1 x i64>)>
76  // BAREPTR-NEXT:    %[[desc1:.*]] = llvm.insertvalue %[[call]], %[[desc0]][0] : !llvm.struct<(ptr, ptr, i64, array<1 x i64>, array<1 x i64>)>
77  // BAREPTR-NEXT:    %[[desc2:.*]] = llvm.insertvalue %[[call]], %[[desc1]][1] : !llvm.struct<(ptr, ptr, i64, array<1 x i64>, array<1 x i64>)>
78  // BAREPTR-NEXT:    %[[c0:.*]] = llvm.mlir.constant(0 : index) : i64
79  // BAREPTR-NEXT:    %[[desc4:.*]] = llvm.insertvalue %[[c0]], %[[desc2]][2] : !llvm.struct<(ptr, ptr, i64, array<1 x i64>, array<1 x i64>)>
80  // BAREPTR-NEXT:    %[[c20:.*]] = llvm.mlir.constant(20 : index) : i64
81  // BAREPTR-NEXT:    %[[desc6:.*]] = llvm.insertvalue %[[c20]], %[[desc4]][3, 0] : !llvm.struct<(ptr, ptr, i64, array<1 x i64>, array<1 x i64>)>
82  // BAREPTR-NEXT:    %[[c1:.*]] = llvm.mlir.constant(1 : index) : i64
83  // BAREPTR-NEXT:    %[[outDesc:.*]] = llvm.insertvalue %[[c1]], %[[desc6]][4, 0] : !llvm.struct<(ptr, ptr, i64, array<1 x i64>, array<1 x i64>)>
84  %res = call @foo(%in) : (memref<10xi8>) -> (memref<20xi8>)
85  // BAREPTR-NEXT:    %[[res:.*]] = llvm.extractvalue %[[outDesc]][0] : !llvm.struct<(ptr, ptr, i64, array<1 x i64>, array<1 x i64>)>
86  // BAREPTR-NEXT:    llvm.return %[[res]] : !llvm.ptr
87  return %res : memref<20xi8>
88}
89
90// BAREPTR-LABEL: func @check_return(
91// BAREPTR-SAME: %{{.*}}: memref<?xi8>) -> memref<?xi8>
92func.func @check_return(%in : memref<?xi8>) -> memref<?xi8> {
93  // BAREPTR: llvm.return {{.*}} : !llvm.struct<(ptr, ptr, i64, array<1 x i64>, array<1 x i64>)>
94  return %in : memref<?xi8>
95}
96
97// BAREPTR-LABEL: func @unconvertible_multiresult
98// BAREPTR-SAME: %{{.*}}: memref<?xf32>, %{{.*}}: memref<?xf32>) -> (memref<?xf32>, memref<?xf32>)
99func.func @unconvertible_multiresult(%arg0: memref<?xf32> , %arg1: memref<?xf32>) -> (memref<?xf32>, memref<?xf32>) {
100  return %arg0, %arg1 : memref<?xf32>, memref<?xf32>
101}
102
103// BAREPTR-LABEL: func @unranked_memref(
104// BAREPTR-SAME: %{{.*}}: memref<*xi32>)
105func.func @unranked_memref(%arg0:memref<*xi32>) {
106  // BAREPTR:      call @printMemrefI32(%arg{{.*}}) : (memref<*xi32>) -> ()
107  // BAREPTR-NEXT: llvm.return
108  call @printMemrefI32(%arg0) : (memref<*xi32>) -> ()
109  return
110}
111func.func private @printMemrefI32(memref<*xi32>)
112
113module attributes {transform.with_named_sequence} {
114  transform.named_sequence @__transform_main(
115      %toplevel_module: !transform.any_op {transform.readonly}) {
116    %func = transform.structured.match ops{["func.func"]} in %toplevel_module
117      : (!transform.any_op) -> !transform.any_op
118    transform.apply_conversion_patterns to %func {
119      transform.apply_conversion_patterns.func.func_to_llvm
120    } with type_converter {
121      transform.apply_conversion_patterns.memref.memref_to_llvm_type_converter
122        {use_bare_ptr_call_conv = true, use_opaque_pointers = true}
123    } {
124      legal_dialects = ["llvm"],
125      partial_conversion
126    } : !transform.any_op
127    transform.yield
128  }
129}
130