https://llvm.org/bugs/show_bug.cgi?id=26498
Bug ID: 26498
Summary: Extern template function not emitted
available_externally while class methods are
Product: new-bugs
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: new bugs
Assignee: unassignedb...@nondot.org
Reporter: mehdi.am...@apple.com
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
Considering this code:
template <class F> F foo() { return 1; }
template <class F> struct S { F foo() { return 1; } };
extern template int foo<int>();
extern template struct S<int>;
int bar() { return foo<int>() + S<int>().foo(); }
Compiled with: clang++ -O2 -mllvm -disable-llvm-optzns -S -emit-llvm -o - |
grep foo
We can see:
%2 = call i32 @_Z3fooIiET_v()
%3 = call i32 @_ZN1SIiE3fooEv(%struct.S* %1)
declare i32 @_Z3fooIiET_v() #1
define available_externally i32 @_ZN1SIiE3fooEv(%struct.S* %this) #2 align 2 {
I'm not sure why the extern template class method is emitted
available_externally while the free function is not.
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