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Encode the module hash in base-36, to reduce the length of the strings a bit

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llvm-svn: 139696
This commit is contained in:
Douglas Gregor
2011-09-14 15:55:12 +00:00
parent 663c068d46
commit a739d9a023
1 changed files with 6 additions and 2 deletions
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8
clang/lib/Frontend/CompilerInvocation.cpp
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@@ -1991,8 +1991,12 @@ std::string CompilerInvocation::getModuleHash() const {
Signature.add((unsigned)T.getOS(), 5);
Signature.add((unsigned)T.getEnvironment(), 4);
// Extend the signature with preprocessor options.
Signature.add(getPreprocessorOpts().UsePredefines, 1);
Signature.add(getPreprocessorOpts().DetailedRecord, 1);
// We've generated the signature. Treat it as one large APInt that we'll
// encode as hex and return.
// encode in base-36 and return.
Signature.flush();
return Signature.getAsInteger().toString(16, /*Signed=*/false);
return Signature.getAsInteger().toString(36, /*Signed=*/false);
}