Fixed #1382 (False positive: uninitialized variable when using assembly to initialize variable)

lib/preprocessor.cpp

@@ -1081,15 +1081,31 @@ std::string Preprocessor::getcode(const std::string &filedata, std::string cfg,
             bool found_end = false;
             while (getline(istr, line))
             {
-                ret << "\n";
                 if (line.compare(0, 14, "#pragma endasm") == 0)
                 {
                     found_end = true;
                     break;
                 }
+
+                ret << "\n";
             }
             if (!found_end)
                 break;
+
+            if (line.find("=") != std::string::npos)
+            {
+                Tokenizer tokenizer;
+                line.erase(0, sizeof("#pragma endasm"));
+                std::istringstream istr(line.c_str());
+                tokenizer.tokenize(istr, "");
+                if (Token::Match(tokenizer.tokens(), "( %var% = %any% )"))
+                {
+                    ret << "asm(" << tokenizer.tokens()->strAt(1) << ");";
+                }
+            }
+
+            ret << "\n";
+
             continue;
         }
 

test/testpreprocessor.cpp

@@ -157,7 +157,8 @@ private:
         TEST_CASE(stringify5);
         TEST_CASE(ifdefwithfile);
         TEST_CASE(pragma);
-        TEST_CASE(pragma_asm);
+        TEST_CASE(pragma_asm_1);
+        TEST_CASE(pragma_asm_2);
         TEST_CASE(endifsemicolon);
         TEST_CASE(missing_doublequote);
         TEST_CASE(handle_error);
@@ -1518,7 +1519,7 @@ private:
         ASSERT_EQUALS("\nvoid f()\n{\n}\n", actual[""]);
     }
 
-    void pragma_asm()
+    void pragma_asm_1()
     {
         const char filedata[] = "#pragma asm\n"
                                 "    mov r1, 11\n"
@@ -1540,6 +1541,24 @@ private:
         ASSERT_EQUALS("\n\n\naaa\n\n\n\nbbb\n", actual[""]);
     }
 
+    void pragma_asm_2()
+    {
+        const char filedata[] = "#pragma asm\n"
+                                "    mov @w1, 11\n"
+                                "#pragma endasm ( temp=@w1 )\n"
+                                "bbb";
+
+        // Preprocess => actual result..
+        std::istringstream istr(filedata);
+        std::map<std::string, std::string> actual;
+        Preprocessor preprocessor;
+        preprocessor.preprocess(istr, actual, "file.c");
+
+        // Compare results..
+        ASSERT_EQUALS(1, static_cast<unsigned int>(actual.size()));
+        ASSERT_EQUALS("\n\nasm(temp);\nbbb\n", actual[""]);
+    }
+
     void endifsemicolon()
     {
         const char filedata[] = "void f()\n"