72 lines
2.7 KiB
C
72 lines
2.7 KiB
C
// RUN: %clang_analyze_cc1 -verify %s \
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// RUN: -analyzer-config eagerly-assume=false \
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// RUN: -analyzer-checker=core,debug.ExprInspection
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#include "Inputs/errno_var.h"
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#include "Inputs/some_system_globals.h"
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#include "Inputs/some_user_globals.h"
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extern void abort() __attribute__((__noreturn__));
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#define assert(expr) ((expr) ? (void)(0) : abort())
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void invalidate_globals(void);
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void clang_analyzer_eval(int x);
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/// Test the special system 'errno'
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void test_errno_constraint() {
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assert(errno > 2);
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clang_analyzer_eval(errno > 2); // expected-warning {{TRUE}}
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invalidate_globals();
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clang_analyzer_eval(errno > 2); // expected-warning {{UNKNOWN}}
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}
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void test_errno_assign(int x) {
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errno = x;
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clang_analyzer_eval(errno == x); // expected-warning {{TRUE}}
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invalidate_globals();
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clang_analyzer_eval(errno == x); // expected-warning {{UNKNOWN}}
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}
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/// Test user global variables
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void test_my_const_user_global_constraint() {
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assert(my_const_user_global > 2);
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clang_analyzer_eval(my_const_user_global > 2); // expected-warning {{TRUE}}
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invalidate_globals();
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clang_analyzer_eval(my_const_user_global > 2); // expected-warning {{TRUE}}
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}
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void test_my_const_user_global_assign(int); // One cannot assign value to a const lvalue.
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void test_my_mutable_user_global_constraint() {
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assert(my_mutable_user_global > 2);
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clang_analyzer_eval(my_mutable_user_global > 2); // expected-warning {{TRUE}}
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invalidate_globals();
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clang_analyzer_eval(my_mutable_user_global > 2); // expected-warning {{UNKNOWN}}
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}
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void test_my_mutable_user_global_assign(int x) {
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my_mutable_user_global = x;
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clang_analyzer_eval(my_mutable_user_global == x); // expected-warning {{TRUE}}
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invalidate_globals();
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clang_analyzer_eval(my_mutable_user_global == x); // expected-warning {{UNKNOWN}}
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}
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/// Test system global variables
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void test_my_const_system_global_constraint() {
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assert(my_const_system_global > 2);
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clang_analyzer_eval(my_const_system_global > 2); // expected-warning {{TRUE}}
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invalidate_globals();
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clang_analyzer_eval(my_const_system_global > 2); // expected-warning {{TRUE}}
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}
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void test_my_const_system_global_assign(int);// One cannot assign value to a const lvalue.
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void test_my_mutable_system_global_constraint() {
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assert(my_mutable_system_global > 2);
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clang_analyzer_eval(my_mutable_system_global > 2); // expected-warning {{TRUE}}
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invalidate_globals();
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clang_analyzer_eval(my_mutable_system_global > 2); // expected-warning {{UNKNOWN}}
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}
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void test_my_mutable_system_global_assign(int x) {
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my_mutable_system_global = x;
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clang_analyzer_eval(my_mutable_system_global == x); // expected-warning {{TRUE}}
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invalidate_globals();
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clang_analyzer_eval(my_mutable_system_global == x); // expected-warning {{UNKNOWN}}
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}
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