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Diffstat (limited to 'test/Analysis/global-region-invalidation.c')
-rw-r--r-- | test/Analysis/global-region-invalidation.c | 44 |
1 files changed, 41 insertions, 3 deletions
diff --git a/test/Analysis/global-region-invalidation.c b/test/Analysis/global-region-invalidation.c index 2d64b49..77de9dd 100644 --- a/test/Analysis/global-region-invalidation.c +++ b/test/Analysis/global-region-invalidation.c @@ -67,15 +67,29 @@ int constIntGlob() { return 3 / *m; // expected-warning {{Division by zero}} } -extern const int x; +extern const int y; int constIntGlobExtern() { - if (x == 0) { + if (y == 0) { foo(); - return 5 / x; // expected-warning {{Division by zero}} + return 5 / y; // expected-warning {{Division by zero}} } return 0; } +static void * const ptr = 0; +void constPtrGlob() { + clang_analyzer_eval(ptr == 0); // expected-warning{{TRUE}} + foo(); + clang_analyzer_eval(ptr == 0); // expected-warning{{TRUE}} +} + +static const int x2 = x; +void constIntGlob2() { + clang_analyzer_eval(x2 == 0); // expected-warning{{TRUE}} + foo(); + clang_analyzer_eval(x2 == 0); // expected-warning{{TRUE}} +} + void testAnalyzerEvalIsPure() { extern int someGlobal; if (someGlobal == 0) { @@ -84,3 +98,27 @@ void testAnalyzerEvalIsPure() { } } +// Test that static variables with initializers do not get reinitialized on +// recursive calls. +void Function2(void); +int *getPtr(); +void Function1(void) { + static unsigned flag; + static int *p = 0; + if (!flag) { + flag = 1; + p = getPtr(); + } + int m = *p; // no-warning: p is never null. + m++; + Function2(); +} +void Function2(void) { + Function1(); +} + +void SetToNonZero(void) { + static int g = 5; + clang_analyzer_eval(g == 5); // expected-warning{{TRUE}} +} + |