forked from OSchip/llvm-project
245 lines
6.2 KiB
MLIR
245 lines
6.2 KiB
MLIR
// RUN: mlir-opt %s -loop-invariant-code-motion -split-input-file | FileCheck %s
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func @nested_loops_both_having_invariant_code() {
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%m = alloc() : memref<10xf32>
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%cf7 = constant 7.0 : f32
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%cf8 = constant 8.0 : f32
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affine.for %arg0 = 0 to 10 {
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%v0 = addf %cf7, %cf8 : f32
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affine.for %arg1 = 0 to 10 {
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%v1 = addf %v0, %cf8 : f32
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affine.store %v0, %m[%arg0] : memref<10xf32>
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}
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}
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// CHECK: %0 = alloc() : memref<10xf32>
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// CHECK-NEXT: %[[CST0:.*]] = constant 7.000000e+00 : f32
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// CHECK-NEXT: %[[CST1:.*]] = constant 8.000000e+00 : f32
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// CHECK-NEXT: %[[ADD0:.*]] = addf %[[CST0]], %[[CST1]] : f32
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// CHECK-NEXT: addf %[[ADD0]], %[[CST1]] : f32
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// CHECK-NEXT: affine.for
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// CHECK-NEXT: affine.for
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// CHECK-NEXT: affine.store
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return
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}
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func @nested_loops_code_invariant_to_both() {
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%m = alloc() : memref<10xf32>
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%cf7 = constant 7.0 : f32
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%cf8 = constant 8.0 : f32
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affine.for %arg0 = 0 to 10 {
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affine.for %arg1 = 0 to 10 {
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%v0 = addf %cf7, %cf8 : f32
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}
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}
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// CHECK: %0 = alloc() : memref<10xf32>
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// CHECK-NEXT: %cst = constant 7.000000e+00 : f32
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// CHECK-NEXT: %cst_0 = constant 8.000000e+00 : f32
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// CHECK-NEXT: %1 = addf %cst, %cst_0 : f32
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return
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}
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func @single_loop_nothing_invariant() {
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%m1 = alloc() : memref<10xf32>
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%m2 = alloc() : memref<10xf32>
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affine.for %arg0 = 0 to 10 {
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%v0 = affine.load %m1[%arg0] : memref<10xf32>
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%v1 = affine.load %m2[%arg0] : memref<10xf32>
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%v2 = addf %v0, %v1 : f32
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affine.store %v2, %m1[%arg0] : memref<10xf32>
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}
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// CHECK: %0 = alloc() : memref<10xf32>
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// CHECK-NEXT: %1 = alloc() : memref<10xf32>
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// CHECK-NEXT: affine.for %arg0 = 0 to 10 {
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// CHECK-NEXT: %2 = affine.load %0[%arg0] : memref<10xf32>
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// CHECK-NEXT: %3 = affine.load %1[%arg0] : memref<10xf32>
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// CHECK-NEXT: %4 = addf %2, %3 : f32
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// CHECK-NEXT: affine.store %4, %0[%arg0] : memref<10xf32>
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return
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}
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func @invariant_code_inside_affine_if() {
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%m = alloc() : memref<10xf32>
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%cf8 = constant 8.0 : f32
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affine.for %arg0 = 0 to 10 {
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%t0 = affine.apply affine_map<(d1) -> (d1 + 1)>(%arg0)
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affine.if affine_set<(d0, d1) : (d1 - d0 >= 0)> (%arg0, %t0) {
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%cf9 = addf %cf8, %cf8 : f32
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affine.store %cf9, %m[%arg0] : memref<10xf32>
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}
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}
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// CHECK: %0 = alloc() : memref<10xf32>
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// CHECK-NEXT: %cst = constant 8.000000e+00 : f32
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// CHECK-NEXT: affine.for %arg0 = 0 to 10 {
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// CHECK-NEXT: %1 = affine.apply #map3(%arg0)
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// CHECK-NEXT: affine.if #set0(%arg0, %1) {
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// CHECK-NEXT: %2 = addf %cst, %cst : f32
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// CHECK-NEXT: affine.store %2, %0[%arg0] : memref<10xf32>
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// CHECK-NEXT: }
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return
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}
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func @invariant_affine_if() {
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%m = alloc() : memref<10xf32>
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%cf8 = constant 8.0 : f32
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affine.for %arg0 = 0 to 10 {
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affine.for %arg1 = 0 to 10 {
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affine.if affine_set<(d0, d1) : (d1 - d0 >= 0)> (%arg0, %arg0) {
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%cf9 = addf %cf8, %cf8 : f32
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}
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}
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}
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// CHECK: %0 = alloc() : memref<10xf32>
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// CHECK-NEXT: %[[CST:.*]] = constant 8.000000e+00 : f32
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// CHECK-NEXT: affine.for %[[ARG:.*]] = 0 to 10 {
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// CHECK-NEXT: affine.if #set0(%[[ARG]], %[[ARG]]) {
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// CHECK-NEXT: addf %[[CST]], %[[CST]] : f32
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// CHECK-NEXT: }
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return
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}
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func @invariant_affine_if2() {
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%m = alloc() : memref<10xf32>
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%cf8 = constant 8.0 : f32
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affine.for %arg0 = 0 to 10 {
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affine.for %arg1 = 0 to 10 {
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affine.if affine_set<(d0, d1) : (d1 - d0 >= 0)> (%arg0, %arg0) {
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%cf9 = addf %cf8, %cf8 : f32
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affine.store %cf9, %m[%arg1] : memref<10xf32>
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}
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}
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}
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// CHECK: alloc
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// CHECK-NEXT: constant
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// CHECK-NEXT: affine.for
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// CHECK-NEXT: affine.for
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// CHECK-NEXT: affine.if
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// CHECK-NEXT: addf
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// CHECK-NEXT: affine.store
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// CHECK-NEXT: }
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// CHECK-NEXT: }
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return
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}
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func @invariant_affine_nested_if() {
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%m = alloc() : memref<10xf32>
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%cf8 = constant 8.0 : f32
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affine.for %arg0 = 0 to 10 {
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affine.for %arg1 = 0 to 10 {
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affine.if affine_set<(d0, d1) : (d1 - d0 >= 0)> (%arg0, %arg0) {
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%cf9 = addf %cf8, %cf8 : f32
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affine.if affine_set<(d0, d1) : (d1 - d0 >= 0)> (%arg0, %arg0) {
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%cf10 = addf %cf9, %cf9 : f32
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}
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}
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}
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}
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// CHECK: alloc
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// CHECK-NEXT: constant
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// CHECK-NEXT: affine.for
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// CHECK-NEXT: affine.for
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// CHECK-NEXT: affine.if
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// CHECK-NEXT: addf
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// CHECK-NEXT: affine.if
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// CHECK-NEXT: addf
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// CHECK-NEXT: }
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// CHECK-NEXT: }
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// CHECK-NEXT: }
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return
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}
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func @invariant_affine_nested_if_else() {
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%m = alloc() : memref<10xf32>
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%cf8 = constant 8.0 : f32
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affine.for %arg0 = 0 to 10 {
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affine.for %arg1 = 0 to 10 {
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affine.if affine_set<(d0, d1) : (d1 - d0 >= 0)> (%arg0, %arg0) {
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%cf9 = addf %cf8, %cf8 : f32
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affine.store %cf9, %m[%arg0] : memref<10xf32>
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affine.if affine_set<(d0, d1) : (d1 - d0 >= 0)> (%arg0, %arg0) {
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%cf10 = addf %cf9, %cf9 : f32
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} else {
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affine.store %cf9, %m[%arg1] : memref<10xf32>
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}
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}
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}
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}
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// CHECK: alloc
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// CHECK-NEXT: constant
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// CHECK-NEXT: affine.for
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// CHECK-NEXT: affine.for
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// CHECK-NEXT: affine.if
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// CHECK-NEXT: addf
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// CHECK-NEXT: affine.store
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// CHECK-NEXT: affine.if
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// CHECK-NEXT: addf
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// CHECK-NEXT: } else {
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// CHECK-NEXT: affine.store
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// CHECK-NEXT: }
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// CHECK-NEXT: }
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// CHECK-NEXT: }
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return
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}
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func @invariant_loop_dialect() {
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%ci0 = constant 0 : index
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%ci10 = constant 10 : index
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%ci1 = constant 1 : index
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%m = alloc() : memref<10xf32>
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%cf7 = constant 7.0 : f32
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%cf8 = constant 8.0 : f32
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loop.for %arg0 = %ci0 to %ci10 step %ci1 {
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loop.for %arg1 = %ci0 to %ci10 step %ci1 {
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%v0 = addf %cf7, %cf8 : f32
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}
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}
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// CHECK: %0 = alloc() : memref<10xf32>
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// CHECK-NEXT: %cst = constant 7.000000e+00 : f32
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// CHECK-NEXT: %cst_0 = constant 8.000000e+00 : f32
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// CHECK-NEXT: %1 = addf %cst, %cst_0 : f32
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return
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}
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func @variant_loop_dialect() {
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%ci0 = constant 0 : index
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%ci10 = constant 10 : index
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%ci1 = constant 1 : index
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%m = alloc() : memref<10xf32>
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loop.for %arg0 = %ci0 to %ci10 step %ci1 {
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loop.for %arg1 = %ci0 to %ci10 step %ci1 {
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%v0 = addi %arg0, %arg1 : index
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}
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}
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// CHECK: %0 = alloc() : memref<10xf32>
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// CHECK-NEXT: loop.for
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// CHECK-NEXT: loop.for
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// CHECK-NEXT: addi
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return
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}
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