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8e0785286a
We should not deserialize unused declarations from the PCH file. Achieve this by storing the top level declarations during parsing (HandleTopLevelDecl ASTConsumer callback) and analyzing/building a call graph only for those. Tested the patch on a sample ObjC file that uses PCH. With the patch, the analyzes is 17.5% faster and clang consumes 40% less memory. Got about 10% overall build/analyzes time decrease on a large Objective C project. A bit of CallGraph refactoring/cleanup as well.. llvm-svn: 154625
21 lines
441 B
C++
21 lines
441 B
C++
// RUN: %clang_cc1 -emit-pch -o %t %s
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// RUN: %clang_cc1 -error-on-deserialized-decl S1_method -include-pch %t -analyze -analyzer-checker=core %s
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// RUN: %clang_cc1 -include-pch %t -analyze -analyzer-checker=core -verify %s
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#ifndef HEADER
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#define HEADER
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// Header.
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void S1_method(); // This should not be deserialized.
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#else
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// Using the header.
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int test() {
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int x = 0;
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return 5/x; //expected-warning {{Division by zero}}
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}
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#endif
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