[AVR][NFC] Supplement a test to issue #132203

Author: benshi001

llvm/test/CodeGen/AVR/issue-132203.ll

@@ -40,3 +40,27 @@ entry:
   %rem = and i16 %sub, 63
   ret i16 %rem
 }
+
+define i16 @fooe(i8 %a) {
+; MOVW-LABEL: fooe:
+; MOVW:       ; %bb.0:
+; MOVW-NEXT:    clr r25
+; MOVW-NEXT:    subi r24, 0
+; MOVW-NEXT:    sbci r25, 1
+; MOVW-NEXT:    andi r24, 1
+; MOVW-NEXT:    andi r25, 0
+; MOVW-NEXT:    ret
+;
+; NOMOVW-LABEL: fooe:
+; NOMOVW:       ; %bb.0:
+; NOMOVW-NEXT:    clr r25
+; NOMOVW-NEXT:    subi r24, 0
+; NOMOVW-NEXT:    sbci r25, 1
+; NOMOVW-NEXT:    andi r24, 1
+; NOMOVW-NEXT:    andi r25, 0
+; NOMOVW-NEXT:    ret
+  %1 = zext i8 %a to i16
+  %2 = sub i16 %1, 256
+  %3 = and i16 %2, 1
+  ret i16 %3
+}