clang/test/Analysis/asm.cpp

   1 // RUN: %clang_analyze_cc1 -analyzer-checker debug.ExprInspection -fheinous-gnu-extensions -w %s -verify
   2
   3 int clang_analyzer_eval(int);
   4
   5 int global;
   6 void testRValueOutput() {
   7   int &ref = global;
   8   ref = 1;
   9   __asm__("" : "=r"(((int)(global))));  // don't crash on rvalue output operand
  10   clang_analyzer_eval(global == 1); // expected-warning{{UNKNOWN}}
  11   clang_analyzer_eval(ref == 1);    // expected-warning{{UNKNOWN}}
  12 }