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1// Test to assure we don't hit assertion when passing characters to maxval2// RUN: fir-opt %s -opt-bufferization | FileCheck %s3 4 5// This simplified `fir` is derived from this test program:6// program FlangOptimizerBug7// character(len=*), parameter :: values(*) = &8// [ "To be ","or not " &9// , "to ","be. " &10// , "that ","is " &11// , "the ","question"]12// integer :: me, ni, i13// character(len=len(values)) :: my_val, expected14// 15// me = 116// ni = 817// 18// my_val = values(mod(me-1, size(values))+1)19// expected = maxval([(values(mod(i-1,size(values))+1), i = 1, ni)])20// 21// print *, my_val, expected22// end program23 24func.func @_QQmain() {25 %c8 = arith.constant 8 : index26 %1 = fir.alloca !fir.char<1, 8>27 %24 = fir.shape %c8 : (index) -> !fir.shape<1>28 %25 = hlfir.elemental %24 typeparams %c8 unordered : (!fir.shape<1>, index) -> !hlfir.expr<?x!fir.char<1, 8>> {29 ^bb0(%arg0: index):30 %dummy = fir.string_lit "A"(8) : !fir.char<1, 8>31 hlfir.yield_element %dummy : !fir.char<1, 8>32 }33 %26 = hlfir.maxval %25 {fastmath = #arith.fastmath<contract>} : (!hlfir.expr<?x!fir.char<1, 8>>) -> !hlfir.expr<!fir.char<1, 8>>34 hlfir.assign %26 to %1 : !hlfir.expr<!fir.char<1, 8>>, !fir.ref<!fir.char<1, 8>> // Assign to %1 directly35 hlfir.destroy %26 : !hlfir.expr<!fir.char<1, 8>>36 hlfir.destroy %25 : !hlfir.expr<?x!fir.char<1, 8>>37 return38}39 40// CHECK-LABEL: func.func @_QQmain() {41// CHECK-NEXT: %c8 = arith.constant 8 : index42// CHECK-NEXT: %[[V0:.*]] = fir.alloca !fir.char<1,8>43// CHECK-NEXT: %[[V1:.*]] = fir.shape %c8 : (index) -> !fir.shape<1>44// CHECK-NEXT: %[[V2:.*]] = hlfir.elemental %1 typeparams %c8 unordered : (!fir.shape<1>, index) -> !hlfir.expr<?x!fir.char<1,8>> {45// CHECK-NEXT: ^bb0(%arg0: index):46// CHECK-NEXT: %[[V4:.*]] = fir.string_lit "A"(8) : !fir.char<1,8>47// CHECK-NEXT: hlfir.yield_element %[[V4]] : !fir.char<1,8>48// CHECK-NEXT: }49// CHECK-NEXT: %[[V3:.*]] = hlfir.maxval %[[V2]] {fastmath = #arith.fastmath<contract>} : (!hlfir.expr<?x!fir.char<1,8>>) -> !hlfir.expr<!fir.char<1,8>>50// CHECK-NEXT: hlfir.assign %[[V3]] to %[[V0]] : !hlfir.expr<!fir.char<1,8>>, !fir.ref<!fir.char<1,8>>51// CHECK-NEXT: hlfir.destroy %[[V3]] : !hlfir.expr<!fir.char<1,8>>52// CHECK-NEXT: hlfir.destroy %[[V2]] : !hlfir.expr<?x!fir.char<1,8>>53// CHECK-NEXT: return54// CHECK-NEXT: }55