forked from OSchip/llvm-project
60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
// RUN: clang-cc -analyze -checker-cfref -analyzer-store=basic -verify %s
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// RUN: clang-cc -analyze -checker-cfref -analyzer-store=region -verify %s
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#include <stdlib.h>
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int* f1() {
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int x = 0;
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return &x; // expected-warning{{Address of stack memory associated with local variable 'x' returned.}} expected-warning{{address of stack memory associated with local variable 'x' returned}}
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}
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int* f2(int y) {
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return &y; // expected-warning{{Address of stack memory associated with local variable 'y' returned.}} expected-warning{{address of stack memory associated with local variable 'y' returned}}
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}
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int* f3(int x, int *y) {
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int w = 0;
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if (x)
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y = &w;
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return y; // expected-warning{{Address of stack memory associated with local variable 'w' returned.}}
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}
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void* compound_literal(int x, int y) {
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if (x)
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return &(unsigned short){((unsigned short)0x22EF)}; // expected-warning{{Address of stack memory}}
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int* array[] = {};
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struct s { int z; double y; int w; };
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if (y)
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return &((struct s){ 2, 0.4, 5 * 8 }); // expected-warning{{Address of stack memory}}
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void* p = &((struct s){ 42, 0.4, x ? 42 : 0 });
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return p; // expected-warning{{Address of stack memory}}
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}
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void* alloca_test() {
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void* p = __builtin_alloca(10);
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return p; // expected-warning{{Address of stack memory}}
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}
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int array_test(int x[2]) {
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return x[0]; // no-warning
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}
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struct baz {
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int x;
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int y[2];
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};
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int struct_test(struct baz byVal, int flag) {
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if (flag)
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return byVal.x; // no-warning
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else {
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return byVal.y[0]; // no-warning
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}
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}
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