// RUN: %clang_analyze_cc1 -triple amdgcn-unknown-unknown -analyze -analyzer-checker=core %s // expected-no-diagnostics // This test case covers an issue found in the static analyzer // solver where pointer sizes were assumed. Pointer sizes may vary on other // architectures. This issue was originally discovered on a downstream, // custom target, this assert occurs on the custom target and this one // without the fix, and is fixed with this change. // // The assertion appears to be happening as a result of evaluating the // SymIntExpr (reg_$0) != 0U in VisitSymIntExpr located in // SimpleSValBuilder.cpp. The LHS is evaluated to 32b and the RHS is // evaluated to 16b. This eventually leads to the assertion in APInt.h. // // APInt.h:1151: bool llvm::APInt::operator==(const llvm::APInt &) const: Assertion `BitWidth == RHS.BitWidth && "Comparison requires equal bit widths"' // void test1(__attribute__((address_space(256))) int * p) { __attribute__((address_space(256))) int * q = p-1; if (q) {} if (q) {} (void)q; } void test2(__attribute__((address_space(256))) int * p) { __attribute__((address_space(256))) int * q = p-1; q && q; q && q; (void)q; }