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PR13575: Fix USR mangling for fixed-size arrays 

Differential Revision: https://reviews.llvm.org/D38643

llvm-svn: 315236
This commit is contained in:
Jan Korous 2017-10-09 19:51:33 +00:00
parent 1364d268a4
commit 663ba15ed6
2 changed files with 30 additions and 0 deletions
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19
clang/lib/Index/USRGeneration.cpp
View File

@ -816,6 +816,25 @@ void USRGenerator::VisitType(QualType T) {
T = VT->getElementType();
continue;
}
if (const auto *const AT = dyn_cast<ArrayType>(T)) {
Out << '{';
switch (AT->getSizeModifier()) {
case ArrayType::Static:
Out << 's';
break;
case ArrayType::Star:
Out << '*';
break;
case ArrayType::Normal:
Out << 'n';
break;
}
if (const auto *const CAT = dyn_cast<ConstantArrayType>(T))
Out << CAT->getSize();
T = AT->getElementType();
continue;
}
// Unhandled type.
Out << ' ';

11
clang/test/Index/USR/array-type.cpp Normal file
View File

@ -0,0 +1,11 @@
// RUN: c-index-test core -print-source-symbols -- %s | FileCheck %s
// Function template specializations differing in array type parameter should have unique USRs.
template<class buffer> void foo(buffer);
// CHECK: {{[0-9]+}}:17 | function(Gen,TS)/C++ | foo | c:@F@foo<#{n16C>#*C# | __Z3fooIA16_cEvT_ | Decl,RelSpecialization | rel: 1
template<> void foo<char[16]>(char[16]);
// CHECK: {{[0-9]+}}:17 | function(Gen,TS)/C++ | foo | c:@F@foo<#{n32C>#*C# | __Z3fooIA32_cEvT_ | Decl,RelSpecialization | rel: 1
template<> void foo<char[32]>(char[32]);
// CHECK: {{[0-9]+}}:17 | function(Gen,TS)/C++ | foo | c:@F@foo<#{n64C>#*C# | __Z3fooIA64_cEvT_ | Decl,RelSpecialization | rel: 1
template<> void foo<char[64]>(char[64]);