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// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -analyze -disable-free -analyzer-eagerly-assume -analyzer-checker=core -analyzer-checker=deadcode -verify %s
unsigned long strlen(const char *);
int size_rdar9373039 = 1;
int rdar9373039() {
int x;
int j = 0;
for (int i = 0 ; i < size_rdar9373039 ; ++i)
x = 1;
// strlen doesn't invalidate the value of 'size_rdar9373039'.
int extra = (2 + strlen ("Clang") + ((4 - ((unsigned int) (2 + strlen ("Clang")) % 4)) % 4)) + (2 + strlen ("1.0") + ((4 - ((unsigned int) (2 + strlen ("1.0")) % 4)) % 4));
for (int i = 0 ; i < size_rdar9373039 ; ++i)
j += x; // no-warning
return j;
}
int foo_rdar9373039(const char *);
int rdar93730392() {
int x;
int j = 0;
for (int i = 0 ; i < size_rdar9373039 ; ++i)
x = 1;
int extra = (2 + foo_rdar9373039 ("Clang") + ((4 - ((unsigned int) (2 + foo_rdar9373039 ("Clang")) % 4)) % 4)) + (2 + foo_rdar9373039 ("1.0") + ((4 - ((unsigned int) (2 + foo_rdar9373039 ("1.0")) % 4)) % 4)); // expected-warning {{never read}}
for (int i = 0 ; i < size_rdar9373039 ; ++i)
j += x; // expected-warning {{garbage}}
return j;
}
int PR8962 (int *t) {
// This should look through the __extension__ no-op.
if (__extension__ (t)) return 0;
return *t; // expected-warning {{null pointer}}
}
int PR8962_b (int *t) {
// This should still ignore the nested casts
// which aren't handled by a single IgnoreParens()
if (((int)((int)t))) return 0;
return *t; // expected-warning {{null pointer}}
}
int PR8962_c (int *t) {
// If the last element in a StmtExpr was a ParenExpr, it's still live
if (({ (t ? (_Bool)0 : (_Bool)1); })) return 0;
return *t; // no-warning
}
int PR8962_d (int *t) {
// If the last element in a StmtExpr is an __extension__, it's still live
if (({ __extension__(t ? (_Bool)0 : (_Bool)1); })) return 0;
return *t; // no-warning
}
int PR8962_e (int *t) {
// Redundant casts can mess things up!
// Environment used to skip through NoOp casts, but LiveVariables didn't!
if (({ (t ? (int)(int)0L : (int)(int)1L); })) return 0;
return *t; // no-warning
}
int PR8962_f (int *t) {
// The StmtExpr isn't a block-level expression here,
// the __extension__ is. But the value should be attached to the StmtExpr
// anyway. Make sure the block-level check is /before/ IgnoreParens.
if ( __extension__({
_Bool r;
if (t) r = 0;
else r = 1;
r;
}) ) return 0;
return *t; // no-warning
}
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