llvm-project/clang/test/Analysis/svalbuilder-simplify-in-eva...

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C++

// RUN: %clang_analyze_cc1 %s \
// RUN: -analyzer-checker=core \
// RUN: -analyzer-checker=debug.ExprInspection \
// RUN: -analyzer-config eagerly-assume=false \
// RUN: -verify
// Here we test whether the SValBuilder is capable to simplify existing
// SVals based on a newly added constraints when evaluating a BinOp.
void clang_analyzer_eval(bool);
void test_evalBinOp_simplifies_lhs(int y) {
int x = y / 77;
if (y != 77)
return;
// Below `x` is the LHS being simplified.
clang_analyzer_eval(x == 1); // expected-warning{{TRUE}}
(void)(x * y);
}
void test_evalBinOp_simplifies_rhs(int y) {
int x = y / 77;
if (y != 77)
return;
// Below `x` is the RHS being simplified.
clang_analyzer_eval(1 == x); // expected-warning{{TRUE}}
(void)(x * y);
}