[mli][vector] canonicalize vector.from_elements from ascending extracts #139819
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| // RUN: mlir-opt %s -canonicalize="test-convergence" -split-input-file -allow-unregistered-dialect | FileCheck %s | ||
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| // This file contains some tests of folding/canonicalizing vector.from_elements | ||
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| ///===----------------------------------------------===// | ||
| /// Tests of `rewriteFromElementsAsSplat` | ||
| ///===----------------------------------------------===// | ||
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There was a problem hiding this comment. This section was copied, right? Could you add a note in the summary so that it's easy to track the history? There was a problem hiding this comment. Yes, copied. I added a comment to the PR summary, I assume that's where you meant? |
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| // CHECK-LABEL: func @extract_scalar_from_from_elements( | ||
| // CHECK-SAME: %[[a:.*]]: f32, %[[b:.*]]: f32) | ||
| func.func @extract_scalar_from_from_elements(%a: f32, %b: f32) -> (f32, f32, f32, f32, f32, f32, f32) { | ||
| // Extract from 0D. | ||
| %0 = vector.from_elements %a : vector<f32> | ||
| %1 = vector.extract %0[] : f32 from vector<f32> | ||
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| // Extract from 1D. | ||
| %2 = vector.from_elements %a : vector<1xf32> | ||
| %3 = vector.extract %2[0] : f32 from vector<1xf32> | ||
| %4 = vector.from_elements %a, %b, %a, %a, %b : vector<5xf32> | ||
| %5 = vector.extract %4[4] : f32 from vector<5xf32> | ||
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| // Extract from 2D. | ||
| %6 = vector.from_elements %a, %a, %a, %b, %b, %b : vector<2x3xf32> | ||
| %7 = vector.extract %6[0, 0] : f32 from vector<2x3xf32> | ||
| %8 = vector.extract %6[0, 1] : f32 from vector<2x3xf32> | ||
| %9 = vector.extract %6[1, 1] : f32 from vector<2x3xf32> | ||
| %10 = vector.extract %6[1, 2] : f32 from vector<2x3xf32> | ||
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| // CHECK: return %[[a]], %[[a]], %[[b]], %[[a]], %[[a]], %[[b]], %[[b]] | ||
| return %1, %3, %5, %7, %8, %9, %10 : f32, f32, f32, f32, f32, f32, f32 | ||
| } | ||
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| // ----- | ||
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| // CHECK-LABEL: func @extract_1d_from_from_elements( | ||
| // CHECK-SAME: %[[a:.*]]: f32, %[[b:.*]]: f32) | ||
| func.func @extract_1d_from_from_elements(%a: f32, %b: f32) -> (vector<3xf32>, vector<3xf32>) { | ||
| %0 = vector.from_elements %a, %a, %a, %b, %b, %b : vector<2x3xf32> | ||
| // CHECK: %[[splat1:.*]] = vector.splat %[[a]] : vector<3xf32> | ||
| %1 = vector.extract %0[0] : vector<3xf32> from vector<2x3xf32> | ||
| // CHECK: %[[splat2:.*]] = vector.splat %[[b]] : vector<3xf32> | ||
| %2 = vector.extract %0[1] : vector<3xf32> from vector<2x3xf32> | ||
| // CHECK: return %[[splat1]], %[[splat2]] | ||
| return %1, %2 : vector<3xf32>, vector<3xf32> | ||
| } | ||
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| // ----- | ||
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| // CHECK-LABEL: func @extract_2d_from_from_elements( | ||
| // CHECK-SAME: %[[a:.*]]: f32, %[[b:.*]]: f32) | ||
| func.func @extract_2d_from_from_elements(%a: f32, %b: f32) -> (vector<2x2xf32>, vector<2x2xf32>) { | ||
| %0 = vector.from_elements %a, %a, %a, %b, %b, %b, %b, %a, %b, %a, %a, %b : vector<3x2x2xf32> | ||
| // CHECK: %[[splat1:.*]] = vector.from_elements %[[a]], %[[a]], %[[a]], %[[b]] : vector<2x2xf32> | ||
| %1 = vector.extract %0[0] : vector<2x2xf32> from vector<3x2x2xf32> | ||
| // CHECK: %[[splat2:.*]] = vector.from_elements %[[b]], %[[b]], %[[b]], %[[a]] : vector<2x2xf32> | ||
| %2 = vector.extract %0[1] : vector<2x2xf32> from vector<3x2x2xf32> | ||
| // CHECK: return %[[splat1]], %[[splat2]] | ||
| return %1, %2 : vector<2x2xf32>, vector<2x2xf32> | ||
| } | ||
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| // ----- | ||
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| // CHECK-LABEL: func @from_elements_to_splat( | ||
| // CHECK-SAME: %[[a:.*]]: f32, %[[b:.*]]: f32) | ||
| func.func @from_elements_to_splat(%a: f32, %b: f32) -> (vector<2x3xf32>, vector<2x3xf32>, vector<f32>) { | ||
| // CHECK: %[[splat:.*]] = vector.splat %[[a]] : vector<2x3xf32> | ||
| %0 = vector.from_elements %a, %a, %a, %a, %a, %a : vector<2x3xf32> | ||
| // CHECK: %[[from_el:.*]] = vector.from_elements {{.*}} : vector<2x3xf32> | ||
| %1 = vector.from_elements %a, %a, %a, %a, %b, %a : vector<2x3xf32> | ||
| // CHECK: %[[splat2:.*]] = vector.splat %[[a]] : vector<f32> | ||
| %2 = vector.from_elements %a : vector<f32> | ||
| // CHECK: return %[[splat]], %[[from_el]], %[[splat2]] | ||
| return %0, %1, %2 : vector<2x3xf32>, vector<2x3xf32>, vector<f32> | ||
| } | ||
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| // ----- | ||
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| ///===----------------------------------------------===// | ||
| /// Tests of `FromElementsToShapeCast` | ||
| ///===----------------------------------------------===// | ||
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| // CHECK-LABEL: func @to_shape_cast_rank2_to_rank1( | ||
| // CHECK-SAME: %[[a:.*]]: vector<1x2xi8>) | ||
| // CHECK: %[[shape_cast:.*]] = vector.shape_cast %[[a]] : vector<1x2xi8> to vector<2xi8> | ||
| // CHECK: return %[[shape_cast]] : vector<2xi8> | ||
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| func.func @to_shape_cast_rank2_to_rank1(%arg0: vector<1x2xi8>) -> vector<2xi8> { | ||
| %0 = vector.extract %arg0[0, 0] : i8 from vector<1x2xi8> | ||
| %1 = vector.extract %arg0[0, 1] : i8 from vector<1x2xi8> | ||
| %4 = vector.from_elements %0, %1 : vector<2xi8> | ||
| return %4 : vector<2xi8> | ||
| } | ||
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| // ----- | ||
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| // CHECK-LABEL: func @to_shape_cast_rank1_to_rank3( | ||
| // CHECK-SAME: %[[a:.*]]: vector<8xi8>) | ||
| // CHECK: %[[shape_cast:.*]] = vector.shape_cast %[[a]] : vector<8xi8> to vector<2x2x2xi8> | ||
| // CHECK: return %[[shape_cast]] : vector<2x2x2xi8> | ||
| func.func @to_shape_cast_rank1_to_rank3(%arg0: vector<8xi8>) -> vector<2x2x2xi8> { | ||
| %0 = vector.extract %arg0[0] : i8 from vector<8xi8> | ||
| %1 = vector.extract %arg0[1] : i8 from vector<8xi8> | ||
| %2 = vector.extract %arg0[2] : i8 from vector<8xi8> | ||
| %3 = vector.extract %arg0[3] : i8 from vector<8xi8> | ||
| %4 = vector.extract %arg0[4] : i8 from vector<8xi8> | ||
| %5 = vector.extract %arg0[5] : i8 from vector<8xi8> | ||
| %6 = vector.extract %arg0[6] : i8 from vector<8xi8> | ||
| %7 = vector.extract %arg0[7] : i8 from vector<8xi8> | ||
| %8 = vector.from_elements %0, %1, %2, %3, %4, %5, %6, %7 : vector<2x2x2xi8> | ||
| return %8 : vector<2x2x2xi8> | ||
| } | ||
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| // ----- | ||
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| // The extracted elements are recombined into a single vector, but in a new order. | ||
| // CHECK-LABEL: func @negative_nonascending_order( | ||
| // CHECK-NOT: shape_cast | ||
| func.func @negative_nonascending_order(%arg0: vector<1x2xi8>) -> vector<2xi8> { | ||
| %0 = vector.extract %arg0[0, 1] : i8 from vector<1x2xi8> | ||
| %1 = vector.extract %arg0[0, 0] : i8 from vector<1x2xi8> | ||
| %2 = vector.from_elements %0, %1 : vector<2xi8> | ||
| return %2 : vector<2xi8> | ||
| } | ||
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| // ----- | ||
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| // CHECK-LABEL: func @negative_nonstatic_extract( | ||
| // CHECK-NOT: shape_cast | ||
| func.func @negative_nonstatic_extract(%arg0: vector<1x2xi8>, %i0 : index, %i1 : index) -> vector<2xi8> { | ||
| %0 = vector.extract %arg0[0, %i0] : i8 from vector<1x2xi8> | ||
| %1 = vector.extract %arg0[0, %i1] : i8 from vector<1x2xi8> | ||
| %2 = vector.from_elements %0, %1 : vector<2xi8> | ||
| return %2 : vector<2xi8> | ||
| } | ||
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| // ----- | ||
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| // CHECK-LABEL: func @negative_different_sources( | ||
| // CHECK-NOT: shape_cast | ||
| func.func @negative_different_sources(%arg0: vector<1x2xi8>, %arg1: vector<1x2xi8>) -> vector<2xi8> { | ||
| %0 = vector.extract %arg0[0, 0] : i8 from vector<1x2xi8> | ||
| %1 = vector.extract %arg1[0, 1] : i8 from vector<1x2xi8> | ||
| %2 = vector.from_elements %0, %1 : vector<2xi8> | ||
| return %2 : vector<2xi8> | ||
| } | ||
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| // ----- | ||
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| // CHECK-LABEL: func @negative_source_too_large( | ||
| // CHECK-NOT: shape_cast | ||
| func.func @negative_source_too_large(%arg0: vector<1x3xi8>) -> vector<2xi8> { | ||
| %0 = vector.extract %arg0[0, 0] : i8 from vector<1x3xi8> | ||
| %1 = vector.extract %arg0[0, 1] : i8 from vector<1x3xi8> | ||
| %2 = vector.from_elements %0, %1 : vector<2xi8> | ||
| return %2 : vector<2xi8> | ||
| } | ||
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[ultra nit] "if possible" is implicit and "less is more" :)