minix/external/bsd/llvm/dist/clang/test/Analysis/builtin-functions.cpp
Lionel Sambuc f4a2713ac8 Importing netbsd clang -- pristine
Change-Id: Ia40e9ffdf29b5dab2f122f673ff6802a58bc690f
2014-07-28 17:05:57 +02:00

24 lines
904 B
C++

// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -analyze -analyzer-checker=core,debug.ExprInspection %s -std=c++11 -verify
void clang_analyzer_eval(bool);
void testAddressof(int x) {
clang_analyzer_eval(&x == __builtin_addressof(x)); // expected-warning{{TRUE}}
}
void testSize() {
struct {
int x;
int y;
char z;
} object;
clang_analyzer_eval(__builtin_object_size(&object.y, 0) == sizeof(object) - sizeof(int)); // expected-warning{{TRUE}}
// Clang can't actually evaluate these builtin "calls", but importantly they don't actually evaluate the argument expression either.
int i = 0;
char buf[10];
clang_analyzer_eval(__builtin_object_size(&buf[i++], 0) == sizeof(buf)); // expected-warning{{FALSE}}
clang_analyzer_eval(__builtin_object_size(&buf[++i], 0) == sizeof(buf) - 1); // expected-warning{{FALSE}}
clang_analyzer_eval(i == 0); // expected-warning{{TRUE}}
}