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canonicalize.mlir
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canonicalize.mlir
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// RUN: mlir-opt -allow-unregistered-dialect %s -split-input-file -pass-pipeline='func(canonicalize)' | FileCheck %s
// -----
// CHECK-DAG: #[[$MAP0:.*]] = affine_map<(d0) -> (d0 - 1)>
// CHECK-DAG: #[[$MAP1:.*]] = affine_map<(d0) -> (d0 + 1)>
// CHECK-LABEL: func @compose_affine_maps_1dto2d_no_symbols() {
func @compose_affine_maps_1dto2d_no_symbols() {
%0 = memref.alloc() : memref<4x4xf32>
affine.for %i0 = 0 to 15 {
// Test load[%x, %x]
%x0 = affine.apply affine_map<(d0) -> (d0 - 1)> (%i0)
%x1_0 = affine.apply affine_map<(d0, d1) -> (d0)> (%x0, %x0)
%x1_1 = affine.apply affine_map<(d0, d1) -> (d1)> (%x0, %x0)
// CHECK: %[[I0A:.*]] = affine.apply #[[$MAP0]](%{{.*}})
// CHECK-NEXT: %[[V0:.*]] = memref.load %0[%[[I0A]], %[[I0A]]]
%v0 = memref.load %0[%x1_0, %x1_1] : memref<4x4xf32>
// Test store[%y, %y]
%y0 = affine.apply affine_map<(d0) -> (d0 + 1)> (%i0)
%y1_0 = affine.apply affine_map<(d0, d1) -> (d0)> (%y0, %y0)
%y1_1 = affine.apply affine_map<(d0, d1) -> (d1)> (%y0, %y0)
// CHECK-NEXT: %[[I1A:.*]] = affine.apply #[[$MAP1]](%{{.*}})
// CHECK-NEXT: memref.store %[[V0]], %0[%[[I1A]], %[[I1A]]]
memref.store %v0, %0[%y1_0, %y1_1] : memref<4x4xf32>
// Test store[%x, %y]
%xy_0 = affine.apply affine_map<(d0, d1) -> (d0)> (%x0, %y0)
%xy_1 = affine.apply affine_map<(d0, d1) -> (d1)> (%x0, %y0)
// CHECK-NEXT: memref.store %[[V0]], %0[%[[I0A]], %[[I1A]]]
memref.store %v0, %0[%xy_0, %xy_1] : memref<4x4xf32>
// Test store[%y, %x]
%yx_0 = affine.apply affine_map<(d0, d1) -> (d0)> (%y0, %x0)
%yx_1 = affine.apply affine_map<(d0, d1) -> (d1)> (%y0, %x0)
// CHECK-NEXT: memref.store %[[V0]], %0[%[[I1A]], %[[I0A]]]
memref.store %v0, %0[%yx_0, %yx_1] : memref<4x4xf32>
}
return
}
// -----
// CHECK-DAG: #[[$MAP4:.*]] = affine_map<(d0) -> (d0 - 4)>
// CHECK-DAG: #[[$MAP7:.*]] = affine_map<(d0) -> (d0 * 2 - 3)>
// CHECK-DAG: #[[$MAP7a:.*]] = affine_map<(d0) -> (d0 * 2 + 1)>
// CHECK-LABEL: func @compose_affine_maps_1dto2d_with_symbols() {
func @compose_affine_maps_1dto2d_with_symbols() {
%0 = memref.alloc() : memref<4x4xf32>
affine.for %i0 = 0 to 15 {
// Test load[%x0, %x0] with symbol %c4
%c4 = constant 4 : index
%x0 = affine.apply affine_map<(d0)[s0] -> (d0 - s0)> (%i0)[%c4]
// CHECK: %[[I0:.*]] = affine.apply #[[$MAP4]](%{{.*}})
// CHECK-NEXT: %[[V0:.*]] = memref.load %{{.*}}[%[[I0]], %[[I0]]]
%v0 = memref.load %0[%x0, %x0] : memref<4x4xf32>
// Test load[%x0, %x1] with symbol %c4 captured by '%x0' map.
%x1 = affine.apply affine_map<(d0) -> (d0 + 1)> (%i0)
%y1 = affine.apply affine_map<(d0, d1) -> (d0+d1)> (%x0, %x1)
// CHECK-NEXT: %[[I1:.*]] = affine.apply #[[$MAP7]](%{{.*}})
// CHECK-NEXT: memref.store %[[V0]], %{{.*}}[%[[I1]], %[[I1]]]
memref.store %v0, %0[%y1, %y1] : memref<4x4xf32>
// Test store[%x1, %x0] with symbol %c4 captured by '%x0' map.
%y2 = affine.apply affine_map<(d0, d1) -> (d0 + d1)> (%x1, %x0)
// CHECK-NEXT: %[[I2:.*]] = affine.apply #[[$MAP7]](%{{.*}})
// CHECK-NEXT: memref.store %[[V0]], %{{.*}}[%[[I2]], %[[I2]]]
memref.store %v0, %0[%y2, %y2] : memref<4x4xf32>
// Test store[%x2, %x0] with symbol %c4 from '%x0' and %c5 from '%x2'
%c5 = constant 5 : index
%x2 = affine.apply affine_map<(d0)[s0] -> (d0 + s0)> (%i0)[%c5]
%y3 = affine.apply affine_map<(d0, d1) -> (d0 + d1)> (%x2, %x0)
// CHECK: %[[I3:.*]] = affine.apply #[[$MAP7a]](%{{.*}})
// CHECK-NEXT: memref.store %[[V0]], %{{.*}}[%[[I3]], %[[I3]]]
memref.store %v0, %0[%y3, %y3] : memref<4x4xf32>
}
return
}
// -----
// CHECK-DAG: #[[$MAP8:.*]] = affine_map<(d0, d1) -> (d1 + (d0 ceildiv 4) * 4 - (d1 floordiv 4) * 4)>
// CHECK-DAG: #[[$MAP8a:.*]] = affine_map<(d0, d1) -> (d1 + (d0 ceildiv 8) * 8 - (d1 floordiv 8) * 8)>
// CHECK-LABEL: func @compose_affine_maps_2d_tile
func @compose_affine_maps_2d_tile(%0: memref<16x32xf32>, %1: memref<16x32xf32>) {
%c4 = constant 4 : index
%c8 = constant 8 : index
affine.for %i0 = 0 to 3 {
%x0 = affine.apply affine_map<(d0)[s0] -> (d0 ceildiv s0)> (%i0)[%c4]
affine.for %i1 = 0 to 3 {
%x1 = affine.apply affine_map<(d0)[s0] -> (d0 ceildiv s0)> (%i1)[%c8]
affine.for %i2 = 0 to 3 {
%x2 = affine.apply affine_map<(d0)[s0] -> (d0 mod s0)> (%i2)[%c4]
affine.for %i3 = 0 to 3 {
%x3 = affine.apply affine_map<(d0)[s0] -> (d0 mod s0)> (%i3)[%c8]
%x40 = affine.apply affine_map<(d0, d1, d2, d3)[s0, s1] ->
((d0 * s0) + d2)> (%x0, %x1, %x2, %x3)[%c4, %c8]
%x41 = affine.apply affine_map<(d0, d1, d2, d3)[s0, s1] ->
((d1 * s1) + d3)> (%x0, %x1, %x2, %x3)[%c4, %c8]
// CHECK: %[[I0:.*]] = affine.apply #[[$MAP8]](%{{.*}}, %{{.*}})
// CHECK: %[[I1:.*]] = affine.apply #[[$MAP8a]](%{{.*}}, %{{.*}})
// CHECK-NEXT: %[[L0:.*]] = memref.load %{{.*}}[%[[I0]], %[[I1]]]
%v0 = memref.load %0[%x40, %x41] : memref<16x32xf32>
// CHECK-NEXT: memref.store %[[L0]], %{{.*}}[%[[I0]], %[[I1]]]
memref.store %v0, %1[%x40, %x41] : memref<16x32xf32>
}
}
}
}
return
}
// -----
// CHECK-DAG: #[[$MAP4b:.*]] = affine_map<(d0) -> (d0 - 7)>
// CHECK-DAG: #[[$MAP9:.*]] = affine_map<(d0) -> (d0 + 3)>
// CHECK-DAG: #[[$MAP10:.*]] = affine_map<(d0) -> (d0 * 3)>
// CHECK-DAG: #[[$MAP11:.*]] = affine_map<(d0) -> ((d0 + 3) ceildiv 3)>
// CHECK-DAG: #[[$MAP12:.*]] = affine_map<(d0) -> (d0 * 7 - 49)>
// CHECK-LABEL: func @compose_affine_maps_dependent_loads() {
func @compose_affine_maps_dependent_loads() {
%0 = memref.alloc() : memref<16x32xf32>
%1 = memref.alloc() : memref<16x32xf32>
affine.for %i0 = 0 to 3 {
affine.for %i1 = 0 to 3 {
affine.for %i2 = 0 to 3 {
%c3 = constant 3 : index
%c7 = constant 7 : index
%x00 = affine.apply affine_map<(d0, d1, d2)[s0, s1] -> (d0 + s0)>
(%i0, %i1, %i2)[%c3, %c7]
%x01 = affine.apply affine_map<(d0, d1, d2)[s0, s1] -> (d1 - s1)>
(%i0, %i1, %i2)[%c3, %c7]
%x02 = affine.apply affine_map<(d0, d1, d2)[s0, s1] -> (d2 * s0)>
(%i0, %i1, %i2)[%c3, %c7]
// CHECK: %[[I0:.*]] = affine.apply #[[$MAP9]](%{{.*}})
// CHECK: %[[I1:.*]] = affine.apply #[[$MAP4b]](%{{.*}})
// CHECK: %[[I2:.*]] = affine.apply #[[$MAP10]](%{{.*}})
// CHECK-NEXT: %[[V0:.*]] = memref.load %{{.*}}[%[[I0]], %[[I1]]]
%v0 = memref.load %0[%x00, %x01] : memref<16x32xf32>
// CHECK-NEXT: memref.store %[[V0]], %{{.*}}[%[[I0]], %[[I2]]]
memref.store %v0, %0[%x00, %x02] : memref<16x32xf32>
// Swizzle %i0, %i1
// CHECK-NEXT: memref.store %[[V0]], %{{.*}}[%[[I1]], %[[I0]]]
memref.store %v0, %0[%x01, %x00] : memref<16x32xf32>
// Swizzle %x00, %x01 and %c3, %c7
%x10 = affine.apply affine_map<(d0, d1)[s0, s1] -> (d0 * s1)>
(%x01, %x00)[%c3, %c7]
%x11 = affine.apply affine_map<(d0, d1)[s0, s1] -> (d1 ceildiv s0)>
(%x01, %x00)[%c3, %c7]
// CHECK-NEXT: %[[I2A:.*]] = affine.apply #[[$MAP12]](%{{.*}})
// CHECK-NEXT: %[[I2B:.*]] = affine.apply #[[$MAP11]](%{{.*}})
// CHECK-NEXT: memref.store %[[V0]], %{{.*}}[%[[I2A]], %[[I2B]]]
memref.store %v0, %0[%x10, %x11] : memref<16x32xf32>
}
}
}
return
}
// -----
// CHECK-DAG: #[[$MAP13A:.*]] = affine_map<(d0) -> ((d0 + 6) ceildiv 8)>
// CHECK-DAG: #[[$MAP13B:.*]] = affine_map<(d0) -> ((d0 * 4 - 4) floordiv 3)>
// CHECK-LABEL: func @compose_affine_maps_diamond_dependency
func @compose_affine_maps_diamond_dependency(%arg0: f32, %arg1: memref<4x4xf32>) {
affine.for %i0 = 0 to 15 {
%a = affine.apply affine_map<(d0) -> (d0 - 1)> (%i0)
%b = affine.apply affine_map<(d0) -> (d0 + 7)> (%a)
%c = affine.apply affine_map<(d0) -> (d0 * 4)> (%a)
%d0 = affine.apply affine_map<(d0, d1) -> (d0 ceildiv 8)> (%b, %c)
%d1 = affine.apply affine_map<(d0, d1) -> (d1 floordiv 3)> (%b, %c)
// CHECK: %[[I0:.*]] = affine.apply #[[$MAP13A]](%{{.*}})
// CHECK: %[[I1:.*]] = affine.apply #[[$MAP13B]](%{{.*}})
// CHECK-NEXT: memref.store %arg0, %arg1[%[[I0]], %[[I1]]]
memref.store %arg0, %arg1[%d0, %d1] : memref<4x4xf32>
}
return
}
// -----
// CHECK-DAG: #[[$MAP14:.*]] = affine_map<()[s0, s1] -> ((s0 * 4 + s1 * 4) floordiv s0)>
// CHECK-LABEL: func @compose_affine_maps_multiple_symbols
func @compose_affine_maps_multiple_symbols(%arg0: index, %arg1: index) -> index {
%a = affine.apply affine_map<(d0)[s0] -> (s0 + d0)> (%arg0)[%arg1]
%c = affine.apply affine_map<(d0) -> (d0 * 4)> (%a)
%e = affine.apply affine_map<(d0)[s0] -> (d0 floordiv s0)> (%c)[%arg1]
// CHECK: [[I0:.*]] = affine.apply #[[$MAP14]]()[%{{.*}}, %{{.*}}]
return %e : index
}
// -----
// CHECK-LABEL: func @arg_used_as_dim_and_symbol
func @arg_used_as_dim_and_symbol(%arg0: memref<100x100xf32>, %arg1: index, %arg2: f32) -> (memref<100x100xf32, 1>, memref<1xi32>) {
%c9 = constant 9 : index
%1 = memref.alloc() : memref<100x100xf32, 1>
%2 = memref.alloc() : memref<1xi32>
affine.for %i0 = 0 to 100 {
affine.for %i1 = 0 to 100 {
%3 = affine.apply affine_map<(d0, d1)[s0, s1] -> (d1 + s0 + s1)>
(%i0, %i1)[%arg1, %c9]
%4 = affine.apply affine_map<(d0, d1, d3) -> (d3 - (d0 + d1))>
(%arg1, %c9, %3)
// CHECK: memref.store %arg2, %{{.*}}[%{{.*}}, %{{.*}}]
memref.store %arg2, %1[%4, %arg1] : memref<100x100xf32, 1>
}
}
return %1, %2 : memref<100x100xf32, 1>, memref<1xi32>
}
// -----
// CHECK-LABEL: func @trivial_maps
func @trivial_maps() {
// CHECK-NOT: affine.apply
%0 = memref.alloc() : memref<10xf32>
%c0 = constant 0 : index
%cst = constant 0.000000e+00 : f32
affine.for %i1 = 0 to 10 {
%1 = affine.apply affine_map<()[s0] -> (s0)>()[%c0]
memref.store %cst, %0[%1] : memref<10xf32>
%2 = memref.load %0[%c0] : memref<10xf32>
%3 = affine.apply affine_map<()[] -> (0)>()[]
memref.store %cst, %0[%3] : memref<10xf32>
memref.store %2, %0[%c0] : memref<10xf32>
}
return
}
// -----
// CHECK-DAG: #[[$MAP15:.*]] = affine_map<()[s0] -> (s0 - 42)>
// CHECK-LABEL: func @partial_fold_map
func @partial_fold_map(%arg1: index, %arg2: index) -> index {
// TODO: Constant fold one index into affine.apply
%c42 = constant 42 : index
%2 = affine.apply affine_map<(d0, d1) -> (d0 - d1)> (%arg1, %c42)
// CHECK: [[X:.*]] = affine.apply #[[$MAP15]]()[%{{.*}}]
return %2 : index
}
// -----
// CHECK-DAG: #[[$MAP_symbolic_composition_a:.*]] = affine_map<()[s0] -> (s0 * 512)>
// CHECK-LABEL: func @symbolic_composition_a(%{{.*}}: index, %{{.*}}: index) -> index {
func @symbolic_composition_a(%arg0: index, %arg1: index) -> index {
%0 = affine.apply affine_map<(d0) -> (d0 * 4)>(%arg0)
%1 = affine.apply affine_map<()[s0, s1] -> (8 * s0)>()[%0, %arg0]
%2 = affine.apply affine_map<()[s0, s1] -> (16 * s1)>()[%arg1, %1]
// CHECK: %{{.*}} = affine.apply #[[$MAP_symbolic_composition_a]]()[%{{.*}}]
return %2 : index
}
// -----
// CHECK-DAG: #[[$MAP_symbolic_composition_b:.*]] = affine_map<()[s0] -> (s0 * 4)>
// CHECK-LABEL: func @symbolic_composition_b(%arg0: index, %arg1: index, %arg2: index, %arg3: index) -> index {
func @symbolic_composition_b(%arg0: index, %arg1: index, %arg2: index, %arg3: index) -> index {
%0 = affine.apply affine_map<(d0) -> (d0)>(%arg0)
%1 = affine.apply affine_map<()[s0, s1, s2, s3] -> (s0 + s1 + s2 + s3)>()[%0, %0, %0, %0]
// CHECK: %{{.*}} = affine.apply #[[$MAP_symbolic_composition_b]]()[%{{.*}}]
return %1 : index
}
// -----
// CHECK-DAG: #[[$MAP_symbolic_composition_c:.*]] = affine_map<()[s0, s1] -> (s0 * 3 + s1)>
// CHECK-LABEL: func @symbolic_composition_c(%arg0: index, %arg1: index, %arg2: index, %arg3: index) -> index {
func @symbolic_composition_c(%arg0: index, %arg1: index, %arg2: index, %arg3: index) -> index {
%0 = affine.apply affine_map<(d0) -> (d0)>(%arg0)
%1 = affine.apply affine_map<(d0) -> (d0)>(%arg1)
%2 = affine.apply affine_map<()[s0, s1, s2, s3] -> (s0 + s1 + s2 + s3)>()[%0, %0, %0, %1]
// CHECK: %{{.*}} = affine.apply #[[$MAP_symbolic_composition_c]]()[%{{.*}}, %{{.*}}]
return %2 : index
}
// -----
// CHECK-DAG: #[[$MAP_symbolic_composition_d:.*]] = affine_map<()[s0, s1] -> (s0 * 3 + s1)>
// CHECK-LABEL: func @symbolic_composition_d(
// CHECK-SAME: %[[ARG0:[0-9a-zA-Z]+]]: index
// CHECK-SAME: %[[ARG1:[0-9a-zA-Z]+]]: index
func @symbolic_composition_d(%arg0: index, %arg1: index, %arg2: index, %arg3: index) -> index {
%0 = affine.apply affine_map<(d0) -> (d0)>(%arg0)
%1 = affine.apply affine_map<()[s0] -> (s0)>()[%arg1]
%2 = affine.apply affine_map<()[s0, s1, s2, s3] -> (s0 + s1 + s2 + s3)>()[%0, %0, %0, %1]
// CHECK: %{{.*}} = affine.apply #[[$MAP_symbolic_composition_d]]()[%[[ARG0]], %[[ARG1]]]
return %2 : index
}
// -----
// CHECK-DAG: #[[$MAP_mix_dims_and_symbols_b:.*]] = affine_map<()[s0, s1] -> (s0 * 42 + s1 + 6)>
// CHECK-LABEL: func @mix_dims_and_symbols_b(%arg0: index, %arg1: index) -> index {
func @mix_dims_and_symbols_b(%arg0: index, %arg1: index) -> index {
%a = affine.apply affine_map<(d0)[s0] -> (d0 - 1 + 42 * s0)> (%arg0)[%arg1]
%b = affine.apply affine_map<(d0) -> (d0 + 7)> (%a)
// CHECK: {{.*}} = affine.apply #[[$MAP_mix_dims_and_symbols_b]]()[%{{.*}}, %{{.*}}]
return %b : index
}
// -----
// CHECK-DAG: #[[$MAP_mix_dims_and_symbols_c:.*]] = affine_map<()[s0, s1] -> (s0 * 168 + s1 * 4 - 4)>
// CHECK-LABEL: func @mix_dims_and_symbols_c(%arg0: index, %arg1: index) -> index {
func @mix_dims_and_symbols_c(%arg0: index, %arg1: index) -> index {
%a = affine.apply affine_map<(d0)[s0] -> (d0 - 1 + 42 * s0)> (%arg0)[%arg1]
%b = affine.apply affine_map<(d0) -> (d0 + 7)> (%a)
%c = affine.apply affine_map<(d0) -> (d0 * 4)> (%a)
// CHECK: {{.*}} = affine.apply #[[$MAP_mix_dims_and_symbols_c]]()[%{{.*}}, %{{.*}}]
return %c : index
}
// -----
// CHECK-DAG: #[[$MAP_mix_dims_and_symbols_d:.*]] = affine_map<()[s0, s1] -> ((s0 * 42 + s1 + 6) ceildiv 8)>
// CHECK-LABEL: func @mix_dims_and_symbols_d(%arg0: index, %arg1: index) -> index {
func @mix_dims_and_symbols_d(%arg0: index, %arg1: index) -> index {
%a = affine.apply affine_map<(d0)[s0] -> (d0 - 1 + 42 * s0)> (%arg0)[%arg1]
%b = affine.apply affine_map<(d0) -> (d0 + 7)> (%a)
%c = affine.apply affine_map<(d0) -> (d0 * 4)> (%a)
%d = affine.apply affine_map<()[s0] -> (s0 ceildiv 8)> ()[%b]
// CHECK: {{.*}} = affine.apply #[[$MAP_mix_dims_and_symbols_d]]()[%{{.*}}, %{{.*}}]
return %d : index
}
// -----
// CHECK-DAG: #[[$MAP_mix_dims_and_symbols_e:.*]] = affine_map<()[s0, s1] -> ((s0 * 168 + s1 * 4 - 4) floordiv 3)>
// CHECK-LABEL: func @mix_dims_and_symbols_e(%arg0: index, %arg1: index) -> index {
func @mix_dims_and_symbols_e(%arg0: index, %arg1: index) -> index {
%a = affine.apply affine_map<(d0)[s0] -> (d0 - 1 + 42 * s0)> (%arg0)[%arg1]
%b = affine.apply affine_map<(d0) -> (d0 + 7)> (%a)
%c = affine.apply affine_map<(d0) -> (d0 * 4)> (%a)
%d = affine.apply affine_map<()[s0] -> (s0 ceildiv 8)> ()[%b]
%e = affine.apply affine_map<(d0) -> (d0 floordiv 3)> (%c)
// CHECK: {{.*}} = affine.apply #[[$MAP_mix_dims_and_symbols_e]]()[%{{.*}}, %{{.*}}]
return %e : index
}
// -----
// CHECK-LABEL: func @mix_dims_and_symbols_f(%arg0: index, %arg1: index) -> index {
func @mix_dims_and_symbols_f(%arg0: index, %arg1: index) -> index {
%a = affine.apply affine_map<(d0)[s0] -> (d0 - 1 + 42 * s0)> (%arg0)[%arg1]
%b = affine.apply affine_map<(d0) -> (d0 + 7)> (%a)
%c = affine.apply affine_map<(d0) -> (d0 * 4)> (%a)
%d = affine.apply affine_map<()[s0] -> (s0 ceildiv 8)> ()[%b]
%e = affine.apply affine_map<(d0) -> (d0 floordiv 3)> (%c)
%f = affine.apply affine_map<(d0, d1)[s0, s1] -> (d0 - s1 + d1 - s0)> (%d, %e)[%e, %d]
// CHECK: {{.*}} = constant 0 : index
return %f : index
}
// -----
// CHECK-DAG: #[[$MAP_symbolic_composition_b:.*]] = affine_map<()[s0] -> (s0 * 4)>
// CHECK-LABEL: func @mix_dims_and_symbols_g(%arg0: index, %arg1: index) -> (index, index, index) {
func @mix_dims_and_symbols_g(%M: index, %N: index) -> (index, index, index) {
%K = affine.apply affine_map<(d0) -> (4*d0)> (%M)
%res1 = affine.apply affine_map<()[s0, s1] -> (4 * s0)>()[%N, %K]
%res2 = affine.apply affine_map<()[s0, s1] -> (s1)>()[%N, %K]
%res3 = affine.apply affine_map<()[s0, s1] -> (1024)>()[%N, %K]
// CHECK-DAG: {{.*}} = constant 1024 : index
// CHECK-DAG: {{.*}} = affine.apply #[[$MAP_symbolic_composition_b]]()[%{{.*}}]
// CHECK-DAG: {{.*}} = affine.apply #[[$MAP_symbolic_composition_b]]()[%{{.*}}]
return %res1, %res2, %res3 : index, index, index
}
// -----
// CHECK-DAG: #[[$symbolic_semi_affine:.*]] = affine_map<(d0)[s0] -> (d0 floordiv (s0 + 1))>
// CHECK-LABEL: func @symbolic_semi_affine(%arg0: index, %arg1: index, %arg2: memref<?xf32>) {
func @symbolic_semi_affine(%M: index, %N: index, %A: memref<?xf32>) {
%f1 = constant 1.0 : f32
affine.for %i0 = 1 to 100 {
%1 = affine.apply affine_map<()[s0] -> (s0 + 1)> ()[%M]
%2 = affine.apply affine_map<(d0)[s0] -> (d0 floordiv s0)> (%i0)[%1]
// CHECK-DAG: {{.*}} = affine.apply #[[$symbolic_semi_affine]](%{{.*}})[%{{.*}}]
memref.store %f1, %A[%2] : memref<?xf32>
}
return
}
// -----
// CHECK: #[[$MAP0:.*]] = affine_map<()[s0] -> (0, s0)>
// CHECK: #[[$MAP1:.*]] = affine_map<()[s0] -> (100, s0)>
// CHECK-LABEL: func @constant_fold_bounds(%arg0: index) {
func @constant_fold_bounds(%N : index) {
// CHECK: constant 3 : index
// CHECK-NEXT: "foo"() : () -> index
%c9 = constant 9 : index
%c1 = constant 1 : index
%c2 = constant 2 : index
%c3 = affine.apply affine_map<(d0, d1) -> (d0 + d1)> (%c1, %c2)
%l = "foo"() : () -> index
// CHECK: affine.for %{{.*}} = 5 to 7 {
affine.for %i = max affine_map<(d0, d1) -> (0, d0 + d1)> (%c2, %c3) to min affine_map<(d0, d1) -> (d0 - 2, 32*d1)> (%c9, %c1) {
"foo"(%i, %c3) : (index, index) -> ()
}
// Bound takes a non-constant argument but can still be folded.
// CHECK: affine.for %{{.*}} = 1 to 7 {
affine.for %j = max affine_map<(d0) -> (0, 1)> (%N) to min affine_map<(d0, d1) -> (7, 9)> (%N, %l) {
"foo"(%j, %c3) : (index, index) -> ()
}
// None of the bounds can be folded.
// CHECK: affine.for %{{.*}} = max #[[$MAP0]]()[%{{.*}}] to min #[[$MAP1]]()[%{{.*}}] {
affine.for %k = max affine_map<()[s0] -> (0, s0)> ()[%l] to min affine_map<()[s0] -> (100, s0)> ()[%N] {
"foo"(%k, %c3) : (index, index) -> ()
}
return
}
// -----
// CHECK-LABEL: func @fold_empty_loop() {
func @fold_empty_loop() {
// CHECK-NOT: affine.for
affine.for %i = 0 to 10 {
}
return
}
// CHECK: return
// -----
// CHECK-DAG: #[[$SET:.*]] = affine_set<(d0, d1)[s0] : (d0 >= 0, -d0 + 1022 >= 0, d1 >= 0, -d1 + s0 - 2 >= 0)>
// CHECK-LABEL: func @canonicalize_affine_if
// CHECK-SAME: %[[M:[0-9a-zA-Z]*]]: index,
// CHECK-SAME: %[[N:[0-9a-zA-Z]*]]: index)
func @canonicalize_affine_if(%M : index, %N : index) {
%c1022 = constant 1022 : index
// Drop unused operand %M, propagate %c1022, and promote %N to symbolic.
affine.for %i = 0 to 1024 {
affine.for %j = 0 to %N {
// CHECK: affine.if #[[$SET]](%{{.*}}, %{{.*}})[%[[N]]]
affine.if affine_set<(d0, d1, d2, d3)[s0] : (d1 >= 0, d0 - d1 >= 0, d2 >= 0, d3 - d2 - 2 >= 0)>
(%c1022, %i, %j, %N)[%M] {
"foo"() : () -> ()
}
"bar"() : () -> ()
}
}
return
}
// -----
// CHECK-DAG: #[[$LBMAP:.*]] = affine_map<()[s0] -> (0, s0)>
// CHECK-DAG: #[[$UBMAP:.*]] = affine_map<()[s0] -> (1024, s0 * 2)>
// CHECK-LABEL: func @canonicalize_bounds
// CHECK-SAME: %[[M:.*]]: index,
// CHECK-SAME: %[[N:.*]]: index)
func @canonicalize_bounds(%M : index, %N : index) {
%c0 = constant 0 : index
%c1024 = constant 1024 : index
// Drop unused operand %N, drop duplicate operand %M, propagate %c1024, and
// promote %M to a symbolic one.
// CHECK: affine.for %{{.*}} = 0 to min #[[$UBMAP]]()[%[[M]]]
affine.for %i = 0 to min affine_map<(d0, d1, d2, d3) -> (d0, d1 + d2)> (%c1024, %M, %M, %N) {
"foo"() : () -> ()
}
// Promote %M to symbolic position.
// CHECK: affine.for %{{.*}} = 0 to #{{.*}}()[%[[M]]]
affine.for %i = 0 to affine_map<(d0) -> (4 * d0)> (%M) {
"foo"() : () -> ()
}
// Lower bound canonicalize.
// CHECK: affine.for %{{.*}} = max #[[$LBMAP]]()[%[[N]]] to %[[M]]
affine.for %i = max affine_map<(d0, d1) -> (d0, d1)> (%c0, %N) to %M {
"foo"() : () -> ()
}
return
}
// -----
// Compose maps into affine load and store ops.
// CHECK-LABEL: @compose_into_affine_load_store
func @compose_into_affine_load_store(%A : memref<1024xf32>, %u : index) {
// CHECK: affine.for %[[IV:.*]] = 0 to 1024
affine.for %i = 0 to 1024 {
// Make sure the unused operand (%u below) gets dropped as well.
%idx = affine.apply affine_map<(d0, d1) -> (d0 + 1)> (%i, %u)
%0 = affine.load %A[%idx] : memref<1024xf32>
affine.store %0, %A[%idx] : memref<1024xf32>
// CHECK-NEXT: affine.load %{{.*}}[%[[IV]] + 1]
// CHECK-NEXT: affine.store %{{.*}}, %{{.*}}[%[[IV]] + 1]
// Map remains the same, but operand changes on composition.
%copy = affine.apply affine_map<(d0) -> (d0)> (%i)
%1 = affine.load %A[%copy] : memref<1024xf32>
"prevent.dce"(%1) : (f32) -> ()
// CHECK-NEXT: affine.load %{{.*}}[%[[IV]]]
}
return
}
// -----
func @affine_min(%arg0 : index, %arg1 : index, %arg2 : index) {
%c511 = constant 511 : index
%c1 = constant 0 : index
%0 = affine.min affine_map<(d0)[s0] -> (1000, d0 + 512, s0 + 1)> (%c1)[%c511]
"op0"(%0) : (index) -> ()
// CHECK: %[[CST:.*]] = constant 512 : index
// CHECK-NEXT: "op0"(%[[CST]]) : (index) -> ()
// CHECK-NEXT: return
return
}
// -----
func @affine_min(%arg0 : index, %arg1 : index, %arg2 : index) {
%c3 = constant 3 : index
%c20 = constant 20 : index
%0 = affine.min affine_map<(d0)[s0] -> (1000, d0 floordiv 4, (s0 mod 5) + 1)> (%c20)[%c3]
"op0"(%0) : (index) -> ()
// CHECK: %[[CST:.*]] = constant 4 : index
// CHECK-NEXT: "op0"(%[[CST]]) : (index) -> ()
// CHECK-NEXT: return
return
}
// -----
func @affine_max(%arg0 : index, %arg1 : index, %arg2 : index) {
%c511 = constant 511 : index
%c1 = constant 0 : index
%0 = affine.max affine_map<(d0)[s0] -> (1000, d0 + 512, s0 + 1)> (%c1)[%c511]
"op0"(%0) : (index) -> ()
// CHECK: %[[CST:.*]] = constant 1000 : index
// CHECK-NEXT: "op0"(%[[CST]]) : (index) -> ()
// CHECK-NEXT: return
return
}
// -----
func @affine_max(%arg0 : index, %arg1 : index, %arg2 : index) {
%c3 = constant 3 : index
%c20 = constant 20 : index
%0 = affine.max affine_map<(d0)[s0] -> (1000, d0 floordiv 4, (s0 mod 5) + 1)> (%c20)[%c3]
"op0"(%0) : (index) -> ()
// CHECK: %[[CST:.*]] = constant 1000 : index
// CHECK-NEXT: "op0"(%[[CST]]) : (index) -> ()
// CHECK-NEXT: return
return
}
// -----
// CHECK: #[[$MAP:.*]] = affine_map<(d0, d1) -> (d0, d1 - 2)>
func @affine_min(%arg0: index) {
affine.for %i = 0 to %arg0 {
affine.for %j = 0 to %arg0 {
%c2 = constant 2 : index
// CHECK: affine.min #[[$MAP]]
%0 = affine.min affine_map<(d0,d1,d2)->(d0, d1 - d2)>(%i, %j, %c2)
"consumer"(%0) : (index) -> ()
}
}
return
}
// -----
// Reproducer for PR45031. This used to fold into an incorrect map because
// symbols were concatenated in the wrong order during map folding. Map
// composition places the symbols of the original map before those of the map
// it is composed with, e.g. A.compose(B) will first have all symbols of A,
// then all symbols of B.
#map1 = affine_map<(d0)[s0, s1] -> (d0 * s0 + s1)>
#map2 = affine_map<(d0)[s0] -> (1024, -d0 + s0)>
// CHECK: #[[$MAP:.*]] = affine_map<()[s0, s1] -> (1024, s0 - s1 * 1024)>
// CHECK: func @rep(%[[ARG0:.*]]: index, %[[ARG1:.*]]: index)
func @rep(%arg0 : index, %arg1 : index) -> index {
// CHECK-NOT: constant
%c0 = constant 0 : index
%c1024 = constant 1024 : index
// CHECK-NOT: affine.apply
%0 = affine.apply #map1(%arg0)[%c1024, %c0]
// CHECK: affine.min #[[$MAP]]()[%[[ARG1]], %[[ARG0]]]
%1 = affine.min #map2(%0)[%arg1]
return %1 : index
}
// -----
// CHECK-DAG: #[[ub:.*]] = affine_map<()[s0] -> (s0 + 2)>
func @drop_duplicate_bounds(%N : index) {
// affine.for %i = max #lb(%arg0) to min #ub(%arg0)
affine.for %i = max affine_map<(d0) -> (d0, d0)>(%N) to min affine_map<(d0) -> (d0 + 2, d0 + 2)>(%N) {
"foo"() : () -> ()
}
return
}
// -----
// Ensure affine.parallel bounds expressions are canonicalized.
#map3 = affine_map<(d0) -> (d0 * 5)>
// CHECK-LABEL: func @affine_parallel_const_bounds
func @affine_parallel_const_bounds() {
%cst = constant 1.0 : f32
%c0 = constant 0 : index
%c4 = constant 4 : index
%0 = memref.alloc() : memref<4xf32>
// CHECK: affine.parallel (%{{.*}}) = (0) to (4)
affine.parallel (%i) = (%c0) to (%c0 + %c4) {
%1 = affine.apply #map3(%i)
// CHECK: affine.parallel (%{{.*}}) = (0) to (%{{.*}} * 5)
affine.parallel (%j) = (%c0) to (%1) {
affine.store %cst, %0[%j] : memref<4xf32>
}
}
return
}
// -----
func @compose_affine_maps_div_symbol(%A : memref<i64>, %i0 : index, %i1 : index) {
%0 = affine.apply affine_map<()[s0] -> (2 * s0)> ()[%i0]
%1 = affine.apply affine_map<()[s0] -> (3 * s0)> ()[%i0]
%2 = affine.apply affine_map<(d0)[s0, s1] -> (d0 mod s1 + s0 * s1 + s0 * 4)> (%i1)[%0, %1]
%3 = index_cast %2: index to i64
memref.store %3, %A[]: memref<i64>
affine.for %i2 = 0 to 3 {
%4 = affine.apply affine_map<(d0)[s0, s1] -> (d0 ceildiv s1 + s0 + s0 * 3)> (%i2)[%0, %1]
%5 = index_cast %4: index to i64
memref.store %5, %A[]: memref<i64>
}
return
}
// -----
// CHECK: #[[MAP:.+]] = affine_map<()[s0, s1] -> (s0 + s1, s0 * s1)>
// CHECK: func @deduplicate_affine_min_expressions
// CHECK-SAME: (%[[I0:.+]]: index, %[[I1:.+]]: index)
func @deduplicate_affine_min_expressions(%i0: index, %i1: index) -> index {
// CHECK: affine.min #[[MAP]]()[%[[I0]], %[[I1]]]
%0 = affine.min affine_map<()[s0, s1] -> (s0 + s1, s0 * s1, s1 + s0, s0 * s1)> ()[%i0, %i1]
return %0: index
}
// -----
// CHECK: #[[MAP:.+]] = affine_map<()[s0, s1] -> (s0 + s1, s0 * s1)>
// CHECK: func @deduplicate_affine_max_expressions
// CHECK-SAME: (%[[I0:.+]]: index, %[[I1:.+]]: index)
func @deduplicate_affine_max_expressions(%i0: index, %i1: index) -> index {
// CHECK: affine.max #[[MAP]]()[%[[I0]], %[[I1]]]
%0 = affine.max affine_map<()[s0, s1] -> (s0 + s1, s0 * s1, s1 + s0, s0 * s1)> ()[%i0, %i1]
return %0: index
}
// -----
// CHECK-DAG: #[[MAP0:.+]] = affine_map<()[s0, s1, s2] -> (s0 * 3, 16, -s1 + s2)>
// CHECK-DAG: #[[MAP1:.+]] = affine_map<()[s0, s1, s2] -> (-s2 + 5, 16, -s0 + s1)>
// CHECK: func @merge_affine_min_ops
// CHECK-SAME: (%[[I0:.+]]: index, %[[I1:.+]]: index, %[[I2:.+]]: index, %[[I3:.+]]: index)
func @merge_affine_min_ops(%i0: index, %i1: index, %i2: index, %i3: index) -> (index, index) {
%0 = affine.min affine_map<(d0)[s0] -> (16, d0 - s0)> (%i0)[%i1]
// CHECK: affine.min #[[MAP0]]()[%[[I2]], %[[I1]], %[[I0]]]
%1 = affine.min affine_map<(d0)[s0] -> (3 * s0, d0)> (%0)[%i2] // Use as dim
// CHECK: affine.min #[[MAP1]]()[%[[I1]], %[[I0]], %[[I3]]]
%2 = affine.min affine_map<(d0)[s0] -> (s0, 5 - d0)> (%i3)[%0] // Use as symbol
return %1, %2: index, index
}
// -----
// CHECK: #[[MAP:.+]] = affine_map<()[s0, s1, s2] -> (s0 + 7, s1 + 16, s1 * 8, s2 + 8, s2 * 4)>
// CHECK: func @merge_multiple_affine_min_ops
// CHECK-SAME: (%[[I0:.+]]: index, %[[I1:.+]]: index, %[[I2:.+]]: index)
func @merge_multiple_affine_min_ops(%i0: index, %i1: index, %i2: index) -> index {
%0 = affine.min affine_map<()[s0] -> (s0 + 16, s0 * 8)> ()[%i0]
%1 = affine.min affine_map<()[s0] -> (s0 + 8, s0 * 4)> ()[%i1]
// CHECK: affine.min #[[MAP]]()[%[[I2]], %[[I0]], %[[I1]]]
%2 = affine.min affine_map<()[s0, s1, s2] -> (s0, 7 + s1, s2)> ()[%0, %i2, %1]
return %2: index
}
// -----
// CHECK-DAG: #[[MAP:.+]] = affine_map<()[s0, s1] -> (s0 * 2, s1 + 16, s1 * 8)>
// CHECK: func @merge_multiple_uses_of_affine_min_ops
// CHECK-SAME: (%[[I0:.+]]: index, %[[I1:.+]]: index)
func @merge_multiple_uses_of_affine_min_ops(%i0: index, %i1: index) -> index {
%0 = affine.min affine_map<()[s0] -> (s0 + 16, s0 * 8)> ()[%i0]
// CHECK: affine.min #[[MAP]]()[%[[I1]], %[[I0]]]
%2 = affine.min affine_map<()[s0, s1, s2] -> (s0, s1, s2 * 2)> ()[%0, %0, %i1]
return %2: index
}
// -----
// CHECK-DAG: #[[MAP0:.+]] = affine_map<()[s0] -> (s0 + 16, s0 * 8)>
// CHECK-DAG: #[[MAP1:.+]] = affine_map<()[s0, s1, s2] -> (s0 + 1, s1 * 2, s2 + 16, s2 * 8)>
// CHECK: func @merge_mixed_uses_of_affine_min_ops
// CHECK-SAME: (%[[I0:.+]]: index, %[[I1:.+]]: index)
func @merge_mixed_uses_of_affine_min_ops(%i0: index, %i1: index) -> index {
// CHECK: %[[AFFINE:.+]] = affine.min #[[MAP0]]()[%[[I0]]]
%0 = affine.min affine_map<()[s0] -> (s0 + 16, s0 * 8)> ()[%i0]
// %0 is bound to a symbol that is both a standalone expression and a part
// of other expressions.
// CHECK: affine.min #[[MAP1]]()[%[[AFFINE]], %[[I1]], %[[I0]]]
%2 = affine.min affine_map<()[s0, s1, s2] -> (s0, s1 + 1, s2 * 2)> ()[%0, %0, %i1]
return %2: index
}
// -----
// CHECK-LABEL: func @dont_merge_affine_min_if_not_single_dim
func @dont_merge_affine_min_if_not_single_dim(%i0: index, %i1: index, %i2: index) -> index {
// CHECK-COUNT-2: affine.min
%0 = affine.min affine_map<()[s0] -> (s0 + 16, s0 * 8)> ()[%i0]
%1 = affine.min affine_map<(d0)[s0] -> (s0 + 4, 7 + d0)> (%0)[%i2]
return %1: index
}
// -----
// CHECK-LABEL: func @dont_merge_affine_min_if_not_single_sym
func @dont_merge_affine_min_if_not_single_sym(%i0: index, %i1: index, %i2: index) -> index {
// CHECK-COUNT-2: affine.min
%0 = affine.min affine_map<()[s0] -> (s0 + 16, s0 * 8)> ()[%i0]
%1 = affine.min affine_map<()[s0, s1] -> (s0 + 4, 7 + s1)> ()[%0, %i2]
return %1: index
}
// -----
// CHECK-DAG: #[[MAP0:.+]] = affine_map<()[s0, s1, s2] -> (s0 * 3, 16, -s1 + s2)>
// CHECK-DAG: #[[MAP1:.+]] = affine_map<()[s0, s1, s2] -> (-s2 + 5, 16, -s0 + s1)>
// CHECK: func @merge_affine_max_ops
// CHECK-SAME: (%[[I0:.+]]: index, %[[I1:.+]]: index, %[[I2:.+]]: index, %[[I3:.+]]: index)
func @merge_affine_max_ops(%i0: index, %i1: index, %i2: index, %i3: index) -> (index, index) {
%0 = affine.max affine_map<(d0)[s0] -> (16, d0 - s0)> (%i0)[%i1]
// CHECK: affine.max #[[MAP0]]()[%[[I2]], %[[I1]], %[[I0]]]
%1 = affine.max affine_map<(d0)[s0] -> (3 * s0, d0)> (%0)[%i2] // Use as dim
// CHECK: affine.max #[[MAP1]]()[%[[I1]], %[[I0]], %[[I3]]]
%2 = affine.max affine_map<(d0)[s0] -> (s0, 5 - d0)> (%i3)[%0] // Use as symbol
return %1, %2: index, index
}
// -----
// CHECK: #[[MAP:.+]] = affine_map<()[s0, s1, s2] -> (s0 + 7, s1 + 16, s1 * 8, s2 + 8, s2 * 4)>
// CHECK: func @merge_multiple_affine_max_ops
// CHECK-SAME: (%[[I0:.+]]: index, %[[I1:.+]]: index, %[[I2:.+]]: index)
func @merge_multiple_affine_max_ops(%i0: index, %i1: index, %i2: index) -> index {
%0 = affine.max affine_map<()[s0] -> (s0 + 16, s0 * 8)> ()[%i0]
%1 = affine.max affine_map<()[s0] -> (s0 + 8, s0 * 4)> ()[%i1]
// CHECK: affine.max #[[MAP]]()[%[[I2]], %[[I0]], %[[I1]]]
%2 = affine.max affine_map<()[s0, s1, s2] -> (s0, 7 + s1, s2)> ()[%0, %i2, %1]
return %2: index
}
// -----
// CHECK-DAG: #[[MAP:.+]] = affine_map<()[s0, s1] -> (s0 * 2, s1 + 16, s1 * 8)>
// CHECK: func @merge_multiple_uses_of_affine_max_ops
// CHECK-SAME: (%[[I0:.+]]: index, %[[I1:.+]]: index)
func @merge_multiple_uses_of_affine_max_ops(%i0: index, %i1: index) -> index {
%0 = affine.max affine_map<()[s0] -> (s0 + 16, s0 * 8)> ()[%i0]
// CHECK: affine.max #[[MAP]]()[%[[I1]], %[[I0]]]
%2 = affine.max affine_map<()[s0, s1, s2] -> (s0, s1, s2 * 2)> ()[%0, %0, %i1]
return %2: index
}
// -----
// CHECK-DAG: #[[MAP0:.+]] = affine_map<()[s0] -> (s0 + 16, s0 * 8)>
// CHECK-DAG: #[[MAP1:.+]] = affine_map<()[s0, s1, s2] -> (s0 + 1, s1 * 2, s2 + 16, s2 * 8)>
// CHECK: func @merge_mixed_uses_of_affine_max_ops
// CHECK-SAME: (%[[I0:.+]]: index, %[[I1:.+]]: index)
func @merge_mixed_uses_of_affine_max_ops(%i0: index, %i1: index) -> index {
// CHECK: %[[AFFINE:.+]] = affine.max #[[MAP0]]()[%[[I0]]]
%0 = affine.max affine_map<()[s0] -> (s0 + 16, s0 * 8)> ()[%i0]
// %0 is bound to a symbol that is both a standalone expression and a part
// of other expressions.
// CHECK: affine.max #[[MAP1]]()[%[[AFFINE]], %[[I1]], %[[I0]]]
%2 = affine.max affine_map<()[s0, s1, s2] -> (s0, s1 + 1, s2 * 2)> ()[%0, %0, %i1]
return %2: index
}
// -----
// CHECK-LABEL: func @dont_merge_affine_max_if_not_single_dim
func @dont_merge_affine_max_if_not_single_dim(%i0: index, %i1: index, %i2: index) -> index {
// CHECK-COUNT-2: affine.max
%0 = affine.max affine_map<()[s0] -> (s0 + 16, s0 * 8)> ()[%i0]
%1 = affine.max affine_map<(d0)[s0] -> (s0 + 4, 7 + d0)> (%0)[%i2]
return %1: index
}
// -----
// CHECK-LABEL: func @dont_merge_affine_max_if_not_single_sym
func @dont_merge_affine_max_if_not_single_sym(%i0: index, %i1: index, %i2: index) -> index {
// CHECK-COUNT-2: affine.max
%0 = affine.max affine_map<()[s0] -> (s0 + 16, s0 * 8)> ()[%i0]
%1 = affine.max affine_map<()[s0, s1] -> (s0 + 4, 7 + s1)> ()[%0, %i2]
return %1: index
}
// -----
// Ensure bounding maps of affine.for are composed.
// CHECK-DAG: #[[$MAP0]] = affine_map<()[s0] -> (s0 - 2)>
// CHECK-DAG: #[[$MAP1]] = affine_map<()[s0] -> (s0 + 2)>
// CHECK-LABEL: func @compose_affine_for_bounds
// CHECK-SAME: %[[N:.*]]: index)
// CHECK: affine.for %{{.*}} = #[[$MAP0]]()[%[[N]]] to #[[$MAP1]]()[%[[N]]] {
func @compose_affine_for_bounds(%N: index) {
%u = affine.apply affine_map<(d0) -> (d0 + 2)>(%N)
%l = affine.apply affine_map<(d0) -> (d0 - 2)>(%N)
affine.for %i = %l to %u {
"foo"() : () -> ()
}
return
}
// -----
// Compose maps into affine.vector_load / affine.vector_store
// CHECK-LABEL: func @compose_into_affine_vector_load_vector_store
// CHECK: affine.for %[[IV:.*]] = 0 to 1024
// CHECK-NEXT: affine.vector_load %{{.*}}[%[[IV]] + 1]
// CHECK-NEXT: affine.vector_store %{{.*}}, %{{.*}}[%[[IV]] + 1]
// CHECK-NEXT: affine.vector_load %{{.*}}[%[[IV]]]
func @compose_into_affine_vector_load_vector_store(%A : memref<1024xf32>, %u : index) {
affine.for %i = 0 to 1024 {
// Make sure the unused operand (%u below) gets dropped as well.
%idx = affine.apply affine_map<(d0, d1) -> (d0 + 1)> (%i, %u)
%0 = affine.vector_load %A[%idx] : memref<1024xf32>, vector<8xf32>
affine.vector_store %0, %A[%idx] : memref<1024xf32>, vector<8xf32>
// Map remains the same, but operand changes on composition.
%copy = affine.apply affine_map<(d0) -> (d0)> (%i)
%1 = affine.vector_load %A[%copy] : memref<1024xf32>, vector<8xf32>
"prevent.dce"(%1) : (vector<8xf32>) -> ()
}
return
}
// -----
// CHECK-LABEL: func @no_fold_of_store
// CHECK: %[[cst:.+]] = memref.cast %arg
// CHECK: affine.store %[[cst]]
func @no_fold_of_store(%arg : memref<32xi8>, %holder: memref<memref<?xi8>>) {
%0 = memref.cast %arg : memref<32xi8> to memref<?xi8>
affine.store %0, %holder[] : memref<memref<?xi8>>
return
}