Fix issue 9362: FP: (style) Condition '(v&1)==0' is always false (#2200)

lib/valueflow.cpp

@@ -770,6 +770,10 @@ static void setTokenValue(Token* tok, const ValueFlow::Value &value, const Setti
         if (parent->isComparisonOp() && value.isImpossible())
             return;
 
+        // Skip operators with impossible values that are not invertible
+        if (Token::Match(parent, "%|/|&|%or%") && value.isImpossible())
+            return;
+
         // known result when a operand is 0.
         if (Token::Match(parent, "[&*]") && value.isKnown() && value.isIntValue() && value.intvalue==0) {
             setTokenValue(parent, value, settings);

test/testcondition.cpp

@@ -3294,6 +3294,16 @@ private:
               "    else if (isdigit(c) != 0) {}\n"
               "}\n");
         ASSERT_EQUALS("", errout.str());
+
+        // #9362
+        check("uint8_t g();\n"
+              "void f() {\n"
+              "    const uint8_t v = g();\n"
+              "    if((v != 0x00)) {\n"
+              "        if( (v & 0x01) == 0x00) {}\n"
+              "    }\n"
+              "}\n");
+        ASSERT_EQUALS("", errout.str());
     }
 
     void alwaysTrueContainer() {