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[Frontend] Fix crash when serializing diagnostics with really long text.

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rdar://21896690

llvm-svn: 244245
This commit is contained in:
Argyrios Kyrtzidis 2015-08-06 18:46:36 +00:00
parent 6443cce233
commit e26aea5b29
2 changed files with 31 additions and 1 deletions
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2
clang/lib/Frontend/SerializedDiagnosticPrinter.cpp
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@ -478,7 +478,7 @@ void SDiagsWriter::EmitBlockInfoBlock() {
AddSourceLocationAbbrev(Abbrev);
Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 10)); // Category.
Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 10)); // Mapped Diag ID.
Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 16)); // Text size.
Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 16)); // Text size.
Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Diagnostc text.
Abbrevs.set(RECORD_DIAG, Stream.EmitBlockInfoAbbrev(BLOCK_DIAG, Abbrev));

30
clang/test/Misc/serialized-diags-really-long-text.cpp Normal file
View File

@ -0,0 +1,30 @@
// Make sure that diagnostics serialization does not crash with a really long diagnostic text.
// RUN: not %clang_cc1 -std=c++11 %s -serialize-diagnostic-file %t.dia
// RUN: c-index-test -read-diagnostics %t.dia 2>&1 | FileCheck %s
typedef class AReallyLooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooongName {} alias;
template <int N, typename ...T>
struct MyTS {
typedef MyTS<N-1, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias,
alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias,
alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias,
alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias,
alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias,
alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias,
alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias,
alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias,
alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, alias, T...> type;
static type callme() {
return type::callme();
}
};
template <typename ...T>
struct MyTS<0, T...> {};
void foo() {
// CHECK: [[@LINE+1]]:20: note: in instantiation of member function
int e = MyTS<2>::callme();
}