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1 2// RUN: mlir-opt -allow-unregistered-dialect -test-scf-for-utils=test-replace-with-new-yields -mlir-disable-threading %s | FileCheck %s3 4func.func @doubleup(%lb: index, %ub: index, %step: index, %extra_arg: f32) -> f32 {5 %0 = scf.for %i = %lb to %ub step %step iter_args(%iter = %extra_arg) -> (f32) {6 %1 = arith.addf %iter, %iter : f327 scf.yield %1: f328 }9 return %0: f3210}11// CHECK-LABEL: func @doubleup12// CHECK-SAME: %[[ARG:[a-zA-Z0-9]+]]: f3213// CHECK: %[[NEWLOOP:.+]]:2 = scf.for14// CHECK-SAME: iter_args(%[[INIT1:.+]] = %[[ARG]], %[[INIT2:.+]] = %[[ARG]]15// CHECK: %[[DOUBLE:.+]] = arith.addf %[[INIT1]], %[[INIT1]]16// CHECK: %[[DOUBLE2:.+]] = arith.addf %[[DOUBLE]], %[[DOUBLE]]17// CHECK: scf.yield %[[DOUBLE]], %[[DOUBLE2]]18// CHECK: return %[[NEWLOOP]]#019