| // RUN: %eopt --enzyme %s | FileCheck %s |
| |
| module { |
| func.func @square(%x : f64) -> f64 { |
| %c0 = arith.constant 0 : index |
| %tmp = memref.alloc() : memref<1xf64> |
| %y = arith.mulf %x, %x : f64 |
| memref.store %y, %tmp[%c0] : memref<1xf64> |
| %r = memref.load %tmp[%c0] : memref<1xf64> |
| return %r : f64 |
| } |
| func.func @dsq(%x : f64, %dx : f64) -> f64 { |
| %r = enzyme.fwddiff @square(%x, %dx) { activity=[#enzyme<activity enzyme_dup>] } : (f64, f64) -> (f64) |
| return %r : f64 |
| } |
| } |
| |
| // CHECK: func.func private @fwddiffesquare(%[[arg0:.+]]: f64, %[[arg1:.+]]: f64) -> f64 { |
| // CHECK-NEXT: %[[c0:.+]] = arith.constant 0 : index |
| // CHECK-NEXT: %[[i0:.+]] = memref.alloc() : memref<1xf64> |
| // CHECK-NEXT: %[[i1:.+]] = memref.alloc() : memref<1xf64> |
| // CHECK-NEXT: %[[i2:.+]] = arith.mulf %[[arg1]], %[[arg0]] : f64 |
| // CHECK-NEXT: %[[i3:.+]] = arith.mulf %[[arg1]], %[[arg0]] : f64 |
| // CHECK-NEXT: %[[i4:.+]] = arith.addf %[[i2]], %[[i3]] : f64 |
| // CHECK-NEXT: %[[i5:.+]] = arith.mulf %[[arg0]], %[[arg0]] : f64 |
| // CHECK-NEXT: memref.store %[[i4]], %[[i0]][%[[c0]]] : memref<1xf64> |
| // CHECK-NEXT: memref.store %[[i5]], %[[i1]][%[[c0]]] : memref<1xf64> |
| // CHECK-NEXT: %[[i6:.+]] = memref.load %[[i0]][%[[c0]]] : memref<1xf64> |
| // CHECK-NEXT: %[[i7:.+]] = memref.load %[[i1]][%[[c0]]] : memref<1xf64> |
| // CHECK-NEXT: return %[[i6]] : f64 |
| // CHECK-NEXT: } |
