55 lines
1.4 KiB
C
55 lines
1.4 KiB
C
// RUN: %clang_analyze_cc1 -w -analyzer-checker=core,debug.ExprInspection\
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// RUN: -analyzer-config eagerly-assume=false -verify %s
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void clang_analyzer_eval(int);
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void testAnd(int i, int *p) {
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int *nullP = 0;
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int *knownP = &i;
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clang_analyzer_eval((knownP && knownP) == 1); // expected-warning{{TRUE}}
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clang_analyzer_eval((knownP && nullP) == 0); // expected-warning{{TRUE}}
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clang_analyzer_eval((knownP && p) == 1); // expected-warning{{UNKNOWN}}
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}
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void testOr(int i, int *p) {
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int *nullP = 0;
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int *knownP = &i;
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clang_analyzer_eval((nullP || knownP) == 1); // expected-warning{{TRUE}}
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clang_analyzer_eval((nullP || nullP) == 0); // expected-warning{{TRUE}}
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clang_analyzer_eval((nullP || p) == 1); // expected-warning{{UNKNOWN}}
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}
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// PR13461
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int testTypeIsInt(int i, void *p) {
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if (i | (p && p))
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return 1;
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return 0;
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}
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// These crashed the analyzer at some point.
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int between(char *x) {
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extern char start[];
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extern char end[];
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return x >= start && x < end;
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}
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int undef(void) {}
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void useUndef(void) { 0 || undef(); }
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void testPointer(void) { (void) (1 && testPointer && 0); }
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char *global_ap, *global_bp, *global_cp;
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void ambiguous_backtrack_1() {
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for (;;) {
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(global_bp - global_ap ? global_cp[global_bp - global_ap] : 0) || 1;
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global_bp++;
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}
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}
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int global_a, global_b;
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void ambiguous_backtrack_2(int x) {
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global_a = x >= 2 ? 1 : x;
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global_b == x && 9 || 2;
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}
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