1 // RUN: mlir-opt -test-constant-fold -split-input-file %s | FileCheck %s
3 // CHECK-LABEL: func @affine_apply
4 func.func @affine_apply(%variable : index) -> (index, index, index) {
5 %c177 = arith.constant 177 : index
6 %c211 = arith.constant 211 : index
7 %N = arith.constant 1075 : index
9 // CHECK:[[C1159:%.+]] = arith.constant 1159 : index
10 // CHECK:[[C1152:%.+]] = arith.constant 1152 : index
11 %x0 = affine.apply affine_map<(d0, d1)[S0] -> ( (d0 + 128 * S0) floordiv 128 + d1 mod 128)>
13 %x1 = affine.apply affine_map<(d0, d1)[S0] -> (128 * (S0 ceildiv 128))>
16 // CHECK:[[C42:%.+]] = arith.constant 42 : index
17 %y = affine.apply affine_map<(d0) -> (42)> (%variable)
19 // CHECK: return [[C1159]], [[C1152]], [[C42]]
20 return %x0, %x1, %y : index, index, index
25 // CHECK: #[[map:.*]] = affine_map<(d0, d1) -> (42, d1)
27 func.func @affine_min(%variable: index) -> (index, index) {
28 // CHECK: %[[C42:.*]] = arith.constant 42
29 %c42 = arith.constant 42 : index
30 %c44 = arith.constant 44 : index
31 // Partial folding will use a different map.
32 // CHECK: %[[r:.*]] = affine.min #[[map]](%[[C42]], %{{.*}})
33 %0 = affine.min affine_map<(d0, d1) -> (d0, d1)>(%c42, %variable)
35 // Full folding will remove the operation entirely.
36 // CHECK-NOT: affine.min
37 %1 = affine.min affine_map<(d0, d1) -> (d0, d1)>(%c42, %c44)
39 // CHECK: return %[[r]], %[[C42]]
40 return %0, %1 : index, index
45 // CHECK: #[[map:.*]] = affine_map<(d0, d1) -> (42, d1)
47 func.func @affine_min(%variable: index) -> (index, index) {
48 // CHECK: %[[C42:.*]] = arith.constant 42
49 %c42 = arith.constant 42 : index
50 // CHECK: %[[C44:.*]] = arith.constant 44
51 %c44 = arith.constant 44 : index
52 // Partial folding will use a different map.
53 // CHECK: %[[r:.*]] = affine.max #[[map]](%[[C42]], %{{.*}})
54 %0 = affine.max affine_map<(d0, d1) -> (d0, d1)>(%c42, %variable)
56 // Full folding will remove the operation entirely.
57 // CHECK-NOT: affine.max
58 %1 = affine.max affine_map<(d0, d1) -> (d0, d1)>(%c42, %c44)
60 // CHECK: return %[[r]], %[[C44]]
61 return %0, %1 : index, index
66 func.func @affine_apply_poison_division_zero() {
67 // This is just for mlir::context to load ub dialect
68 %ub = ub.poison : index
69 %c16 = arith.constant 16 : index
70 %0 = affine.apply affine_map<(d0)[s0] -> (d0 mod (s0 - s0))>(%c16)[%c16]
71 %1 = affine.apply affine_map<(d0)[s0] -> (d0 floordiv (s0 - s0))>(%c16)[%c16]
72 %2 = affine.apply affine_map<(d0)[s0] -> (d0 ceildiv (s0 - s0))>(%c16)[%c16]
73 %alloc = memref.alloc(%0, %1, %2) : memref<?x?x?xi1>
74 %3 = affine.load %alloc[%0, %1, %2] : memref<?x?x?xi1>
75 affine.store %3, %alloc[%0, %1, %2] : memref<?x?x?xi1>
79 // CHECK-NOT: affine.apply
80 // CHECK: %[[poison:.*]] = ub.poison : index
81 // CHECK-NEXT: %[[alloc:.*]] = memref.alloc(%[[poison]], %[[poison]], %[[poison]])
82 // CHECK-NEXT: %[[load:.*]] = affine.load %[[alloc]][%[[poison]], %[[poison]], %[[poison]]] : memref<?x?x?xi1>
83 // CHECK-NEXT: affine.store %[[load]], %alloc[%[[poison]], %[[poison]], %[[poison]]] : memref<?x?x?xi1>
87 // Check that this doesn't crash because the ub dialect is automatically loaded
88 func.func @affine_apply_poison_division_zero_2() -> index {
89 %c16 = arith.constant 16 : index
90 %0 = affine.apply affine_map<(d0)[s0] -> (d0 mod (s0 - s0))>(%c16)[%c16]