xref: /llvm-project/flang/test/HLFIR/char_assign.fir (revision 8df5913250d55883feb8fa46a838c93a77c2e291)
1// RUN: fir-opt --split-input-file %s -convert-hlfir-to-fir | FileCheck %s
2
3// Verify that the special case of length-one character assignment
4// is using valid fir.converts.
5
6// -----
7
8// CHECK-LABEL: func.func @_QPtest1
9// CHECK: [[C_DECL:%[0-9]*]] = fir.declare{{.*}}{uniq_name = "_QFtest1Ec"} : (!fir.ref<!fir.char<1,?>>, index) -> !fir.ref<!fir.char<1,?>>
10// CHECK: [[LOCAL_DECL:%[0-9]*]] = fir.declare{{.*}}{uniq_name = "_QFtest1Elocal"} : (!fir.ref<!fir.char<1>>, index) -> !fir.ref<!fir.char<1>>
11// CHECK: [[CVT:%[0-9]*]] = fir.convert [[C_DECL]] : (!fir.ref<!fir.char<1,?>>) -> !fir.ref<!fir.char<1>>
12// CHECK: [[LD:%[0-9]*]] = fir.load [[CVT]] : !fir.ref<!fir.char<1>>
13// CHECK: fir.store [[LD]] to [[LOCAL_DECL]] : !fir.ref<!fir.char<1>>
14module {
15  func.func @_QPtest1(%arg0: !fir.boxchar<1> {fir.bindc_name = "c"}) {
16    %c1 = arith.constant 1 : index
17    %0:2 = fir.unboxchar %arg0 : (!fir.boxchar<1>) -> (!fir.ref<!fir.char<1,?>>, index)
18    %1:2 = hlfir.declare %0#0 typeparams %c1 {uniq_name = "_QFtest1Ec"} : (!fir.ref<!fir.char<1,?>>, index) -> (!fir.boxchar<1>, !fir.ref<!fir.char<1,?>>)
19    %2 = fir.alloca !fir.char<1> {bindc_name = "local", uniq_name = "_QFtest1Elocal"}
20    %3:2 = hlfir.declare %2 typeparams %c1 {uniq_name = "_QFtest1Elocal"} : (!fir.ref<!fir.char<1>>, index) -> (!fir.ref<!fir.char<1>>, !fir.ref<!fir.char<1>>)
21    hlfir.assign %1#0 to %3#0 : !fir.boxchar<1>, !fir.ref<!fir.char<1>>
22    return
23  }
24}
25
26// -----
27
28// CHECK-LABEL: func.func @_QPtest2
29// CHECK: [[C_DECL:%[0-9]*]] = fir.declare{{.*}}{uniq_name = "_QFtest2Ec"} : (!fir.ref<!fir.char<1,?>>, index) -> !fir.ref<!fir.char<1,?>>
30// CHECK: [[LOCAL_DECL:%[0-9]*]] = fir.declare{{.*}}{uniq_name = "_QFtest2Elocal"} : (!fir.ref<!fir.char<1>>, index) -> !fir.ref<!fir.char<1>>
31// CHECK: [[LD:%[0-9]*]] = fir.load [[LOCAL_DECL]] : !fir.ref<!fir.char<1>>
32// CHECK: [[CVT:%[0-9]*]] = fir.convert [[C_DECL]] : (!fir.ref<!fir.char<1,?>>) -> !fir.ref<!fir.char<1>>
33// CHECK: fir.store [[LD]] to [[CVT]] : !fir.ref<!fir.char<1>>
34module {
35  func.func @_QPtest2(%arg0: !fir.boxchar<1> {fir.bindc_name = "c"}) {
36    %c1 = arith.constant 1 : index
37    %0:2 = fir.unboxchar %arg0 : (!fir.boxchar<1>) -> (!fir.ref<!fir.char<1,?>>, index)
38    %1:2 = hlfir.declare %0#0 typeparams %c1 {uniq_name = "_QFtest2Ec"} : (!fir.ref<!fir.char<1,?>>, index) -> (!fir.boxchar<1>, !fir.ref<!fir.char<1,?>>)
39    %2 = fir.alloca !fir.char<1> {bindc_name = "local", uniq_name = "_QFtest2Elocal"}
40    %3:2 = hlfir.declare %2 typeparams %c1 {uniq_name = "_QFtest2Elocal"} : (!fir.ref<!fir.char<1>>, index) -> (!fir.ref<!fir.char<1>>, !fir.ref<!fir.char<1>>)
41    hlfir.assign %3#0 to %1#0 : !fir.ref<!fir.char<1>>, !fir.boxchar<1>
42    return
43  }
44}
45