| 1 | // RUN: %clang_analyze_cc1 -Wno-pointer-bool-conversion -analyzer-checker=core,debug.ExprInspection -verify -analyzer-config eagerly-assume=false %s |
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| 2 | |
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| 3 | void clang_analyzer_eval(int); |
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| 4 | |
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| 5 | void testAnd(int i, int *p) { |
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| 6 | int *nullP = 0; |
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| 7 | int *knownP = &i; |
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| 8 | clang_analyzer_eval((knownP && knownP) == 1); // expected-warning{{TRUE}} |
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| 9 | clang_analyzer_eval((knownP && nullP) == 0); // expected-warning{{TRUE}} |
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| 10 | clang_analyzer_eval((knownP && p) == 1); // expected-warning{{UNKNOWN}} |
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| 11 | } |
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| 12 | |
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| 13 | void testOr(int i, int *p) { |
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| 14 | int *nullP = 0; |
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| 15 | int *knownP = &i; |
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| 16 | clang_analyzer_eval((nullP || knownP) == 1); // expected-warning{{TRUE}} |
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| 17 | clang_analyzer_eval((nullP || nullP) == 0); // expected-warning{{TRUE}} |
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| 18 | clang_analyzer_eval((nullP || p) == 1); // expected-warning{{UNKNOWN}} |
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| 19 | } |
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| 20 | |
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| 21 | |
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| 22 | // PR13461 |
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| 23 | int testTypeIsInt(int i, void *p) { |
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| 24 | if (i | (p && p)) |
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| 25 | return 1; |
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| 26 | return 0; |
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| 27 | } |
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| 28 | |
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| 29 | // These crashed the analyzer at some point. |
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| 30 | int between(char *x) { |
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| 31 | extern char start[]; |
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| 32 | extern char end[]; |
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| 33 | return x >= start && x < end; |
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| 34 | } |
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| 35 | |
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| 36 | int undef(void) {} // expected-warning{{control reaches end of non-void function}} |
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| 37 | void useUndef(void) { 0 || undef(); } |
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| 38 | |
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| 39 | void testPointer(void) { (void) (1 && testPointer && 0); } |
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| 40 | |
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