diff --git a/flang/lib/Optimizer/Transforms/SimplifyIntrinsics.cpp b/flang/lib/Optimizer/Transforms/SimplifyIntrinsics.cpp
index df2887ff1422e..3baac62dd69f2 100644
--- a/flang/lib/Optimizer/Transforms/SimplifyIntrinsics.cpp
+++ b/flang/lib/Optimizer/Transforms/SimplifyIntrinsics.cpp
@@ -821,7 +821,8 @@ static void genRuntimeMinMaxlocBody(fir::FirOpBuilder &builder,
   // if mask is a logical scalar, we can check its value before the main loop
   // and either ignore the fact it is there or exit early.
   if (maskRank == 0) {
-    mlir::Type logical = builder.getI1Type();
+    mlir::Type i1Type = builder.getI1Type();
+    mlir::Type logical = maskElemType;
     mlir::IndexType idxTy = builder.getIndexType();
 
     fir::SequenceType::Shape singleElement(1, 1);
@@ -834,8 +835,9 @@ static void genRuntimeMinMaxlocBody(fir::FirOpBuilder &builder,
     mlir::Value condAddr =
         builder.create<fir::CoordinateOp>(loc, logicalRefTy, array, indx);
     mlir::Value cond = builder.create<fir::LoadOp>(loc, condAddr);
+    mlir::Value condI1 = builder.create<fir::ConvertOp>(loc, i1Type, cond);
 
-    fir::IfOp ifOp = builder.create<fir::IfOp>(loc, elementType, cond,
+    fir::IfOp ifOp = builder.create<fir::IfOp>(loc, elementType, condI1,
                                                /*withElseRegion=*/true);
 
     builder.setInsertionPointToStart(&ifOp.getElseRegion().front());
diff --git a/flang/test/Transforms/simplifyintrinsics.fir b/flang/test/Transforms/simplifyintrinsics.fir
index 9a95748c17258..1a66e077165b0 100644
--- a/flang/test/Transforms/simplifyintrinsics.fir
+++ b/flang/test/Transforms/simplifyintrinsics.fir
@@ -1996,10 +1996,11 @@ func.func @_QPtestminloc_works1d_scalarmask_f64(%arg0: !fir.ref<!fir.array<10xf6
 // CHECK:           %[[OUTARR_IDX0:.*]] = arith.constant 0 : index
 // CHECK:           %[[OUTARR_ITEM0:.*]] = fir.coordinate_of %[[BOX_OUTARR]], %[[OUTARR_IDX0]] : (!fir.box<!fir.heap<!fir.array<1xi32>>>, index) -> !fir.ref<i32>
 // CHECK:           fir.store %[[INIT_OUT_IDX]] to %[[OUTARR_ITEM0]] : !fir.ref<i32>
-// CHECK:           %[[BOX_MASK:.*]] = fir.convert %[[BOX_MASK_NONE]] : (!fir.box<none>) -> !fir.box<!fir.array<1xi1>>
+// CHECK:           %[[BOX_MASK:.*]] = fir.convert %[[BOX_MASK_NONE]] : (!fir.box<none>) -> !fir.box<!fir.array<1x!fir.logical<4>>>
 // CHECK:           %[[MASK_IDX0:.*]] = arith.constant 0 : index
-// CHECK:           %[[MASK_ITEM:.*]] = fir.coordinate_of %[[BOX_MASK]], %[[MASK_IDX0]] : (!fir.box<!fir.array<1xi1>>, index) -> !fir.ref<i1>
-// CHECK:           %[[MASK:.*]] = fir.load %[[MASK_ITEM]] : !fir.ref<i1>
+// CHECK:           %[[MASK_ITEM:.*]] = fir.coordinate_of %[[BOX_MASK]], %[[MASK_IDX0]] : (!fir.box<!fir.array<1x!fir.logical<4>>>, index) -> !fir.ref<!fir.logical<4>>
+// CHECK:           %[[MASK_LOGICAL:.*]] = fir.load %[[MASK_ITEM]] : !fir.ref<!fir.logical<4>>
+// CHECK:           %[[MASK:.*]] = fir.convert %[[MASK_LOGICAL]] : (!fir.logical<4>) -> i1
 // CHECK:           %[[INIT_RES:.*]] = fir.if %[[MASK]] -> (f64) {
 // CHECK:             %[[C_INDEX0:.*]] = arith.constant 0 : index
 // CHECK:             %[[BOX_INARR:.*]] = fir.convert %[[BOX_INARR_NONE]] : (!fir.box<none>) -> !fir.box<!fir.array<?xf64>>
@@ -2573,10 +2574,11 @@ func.func @_QPtestmaxloc_works1d_scalarmask_f64(%arg0: !fir.ref<!fir.array<10xf6
 // CHECK:           %[[OUTARR_IDX0:.*]] = arith.constant 0 : index
 // CHECK:           %[[OUTARR_ITEM0:.*]] = fir.coordinate_of %[[BOX_OUTARR]], %[[OUTARR_IDX0]] : (!fir.box<!fir.heap<!fir.array<1xi32>>>, index) -> !fir.ref<i32>
 // CHECK:           fir.store %[[INIT_OUT_IDX]] to %[[OUTARR_ITEM0]] : !fir.ref<i32>
-// CHECK:           %[[BOX_MASK:.*]] = fir.convert %[[BOX_MASK_NONE]] : (!fir.box<none>) -> !fir.box<!fir.array<1xi1>>
+// CHECK:           %[[BOX_MASK:.*]] = fir.convert %[[BOX_MASK_NONE]] : (!fir.box<none>) -> !fir.box<!fir.array<1x!fir.logical<4>>>
 // CHECK:           %[[MASK_IDX0:.*]] = arith.constant 0 : index
-// CHECK:           %[[MASK_ITEM:.*]] = fir.coordinate_of %[[BOX_MASK]], %[[MASK_IDX0]] : (!fir.box<!fir.array<1xi1>>, index) -> !fir.ref<i1>
-// CHECK:           %[[MASK:.*]] = fir.load %[[MASK_ITEM]] : !fir.ref<i1>
+// CHECK:           %[[MASK_ITEM:.*]] = fir.coordinate_of %[[BOX_MASK]], %[[MASK_IDX0]] : (!fir.box<!fir.array<1x!fir.logical<4>>>, index) -> !fir.ref<!fir.logical<4>>
+// CHECK:           %[[MASK_LOGICAL:.*]] = fir.load %[[MASK_ITEM]] : !fir.ref<!fir.logical<4>>
+// CHECK:           %[[MASK:.*]] = fir.convert %[[MASK_LOGICAL]] : (!fir.logical<4>) -> i1
 // CHECK:           %[[INIT_RES:.*]] = fir.if %[[MASK]] -> (f64) {
 // CHECK:             %[[C_INDEX0:.*]] = arith.constant 0 : index
 // CHECK:             %[[BOX_INARR:.*]] = fir.convert %[[BOX_INARR_NONE]] : (!fir.box<none>) -> !fir.box<!fir.array<?xf64>>