llvm-for-llvmta/tools/clang/test/Analysis/asm.cpp

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2022-04-25 13:02:35 +02:00
// RUN: %clang_analyze_cc1 -analyzer-checker debug.ExprInspection -fheinous-gnu-extensions -w %s -verify
int clang_analyzer_eval(int);
int global;
void testRValueOutput() {
int &ref = global;
ref = 1;
__asm__("" : "=r"(((int)(global)))); // don't crash on rvalue output operand
clang_analyzer_eval(global == 1); // expected-warning{{UNKNOWN}}
clang_analyzer_eval(ref == 1); // expected-warning{{UNKNOWN}}
}