[InstCombine] Add test for foldSelectICmpAndBinOp with range attribute. (NFC)

Author: andjo403

llvm/test/Transforms/InstCombine/select-with-bitwise-ops.ll

@@ -1829,3 +1829,42 @@ define i8 @neg_select_trunc_or_2(i8 %x, i8 %y) {
   %select = select i1 %trunc, i8 %y, i8 %or
   ret i8 %select
 }
+
+define i8 @select_icmp_bittest_range(i8 range(i8 0, 64) %a, i8 %y) {
+; CHECK-LABEL: @select_icmp_bittest_range(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp samesign ult i8 [[A:%.*]], 32
+; CHECK-NEXT:    [[OR:%.*]] = or i8 [[Y:%.*]], 2
+; CHECK-NEXT:    [[RES:%.*]] = select i1 [[CMP]], i8 [[Y]], i8 [[OR]]
+; CHECK-NEXT:    ret i8 [[RES]]
+;
+  %cmp = icmp ult i8 %a, 32
+  %or = or i8 %y, 2
+  %res = select i1 %cmp, i8 %y, i8 %or
+  ret i8 %res
+}
+
+define i8 @neg_select_icmp_bittest_range(i8 range(i8 0, 65) %a, i8 %y) {
+; CHECK-LABEL: @neg_select_icmp_bittest_range(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp samesign ult i8 [[A:%.*]], 32
+; CHECK-NEXT:    [[OR:%.*]] = or i8 [[Y:%.*]], 2
+; CHECK-NEXT:    [[RES:%.*]] = select i1 [[CMP]], i8 [[Y]], i8 [[OR]]
+; CHECK-NEXT:    ret i8 [[RES]]
+;
+  %cmp = icmp ult i8 %a, 32
+  %or = or i8 %y, 2
+  %res = select i1 %cmp, i8 %y, i8 %or
+  ret i8 %res
+}
+
+define i8 @neg_select_icmp_bittest_range_2(i8 range(i8 0, 64) %a, i8 %y) {
+; CHECK-LABEL: @neg_select_icmp_bittest_range_2(
+; CHECK-NEXT:    [[CMP:%.*]] = icmp samesign ult i8 [[A:%.*]], 16
+; CHECK-NEXT:    [[OR:%.*]] = or i8 [[Y:%.*]], 2
+; CHECK-NEXT:    [[RES:%.*]] = select i1 [[CMP]], i8 [[Y]], i8 [[OR]]
+; CHECK-NEXT:    ret i8 [[RES]]
+;
+  %cmp = icmp ult i8 %a, 16
+  %or = or i8 %y, 2
+  %res = select i1 %cmp, i8 %y, i8 %or
+  ret i8 %res
+}