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