2246167362
devirtualized.
The code to detect devirtualized calls is already in IRGen, so move the
code to lib/AST and make it a shared utility between Sema and IRGen.
This commit fixes a linkage error I was seeing when compiling the
following code:
$ cat test1.cpp
struct Base {
virtual void operator()() {}
};
template<class T>
struct Derived final : Base {
void operator()() override {}
};
Derived<int> *d;
int main() {
if (d)
(*d)();
return 0;
}
rdar://problem/33195657
Differential Revision: https://reviews.llvm.org/D34301
llvm-svn: 307883
60 lines
1.9 KiB
C++
60 lines
1.9 KiB
C++
// RUN: %clang_cc1 %s -DUSEIT -triple %itanium_abi_triple -emit-llvm -o - | FileCheck %s
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// Test with decls and template defs in pch, and just use in .cpp
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// RUN: %clang_cc1 %s -DTMPL_DEF_IN_HEADER -triple %itanium_abi_triple -emit-pch -o %t
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// RUN: %clang_cc1 %s -DTMPL_DEF_IN_HEADER -DUSEIT -triple %itanium_abi_triple -include-pch %t -emit-llvm -o - | FileCheck %s
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// Test with A in pch, and B and C in main
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// Test with just decls in pch, and template defs and use in .cpp
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// RUN: %clang_cc1 %s -triple %itanium_abi_triple -emit-pch -o %t
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// RUN: %clang_cc1 %s -DUSEIT -triple %itanium_abi_triple -include-pch %t -emit-llvm -o - | FileCheck %s
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#ifndef HEADER
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#define HEADER
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template < typename T, int N = 0 > class TmplWithArray {
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public:
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virtual T& operator [] (int idx);
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virtual T& func1 (int idx);
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virtual T& func2 (int idx);
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T ar[N+1];
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};
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struct Wrapper {
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TmplWithArray<bool, 10> data;
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bool indexIt(int a) {
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if (a > 6) return data[a] ; // Should devirtualize
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if (a > 4) return data.func1(a); // Should devirtualize
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return data.func2(a); // Should devirtualize
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}
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};
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#ifdef TMPL_DEF_IN_HEADER
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template <typename T, int N> T& TmplWithArray<T, N >::operator[](int idx) {
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return ar[idx];
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}
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template <typename T, int N> T& TmplWithArray<T, N >::func1(int idx) {
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return ar[idx];
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}
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#endif // TMPL_DEF_IN_HEADER
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#endif // HEADER
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#ifdef USEIT
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#ifndef TMPL_DEF_IN_HEADER
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template <typename T, int N> T& TmplWithArray<T, N >::operator[](int idx) {
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return ar[idx];
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}
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template <typename T, int N> T& TmplWithArray<T, N >::func1(int idx) {
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return ar[idx];
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}
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#endif // !TMPL_DEF_IN_HEADER
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extern Wrapper ew;
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bool stuff(int p)
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{
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return ew.indexIt(p);
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}
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#endif
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// CHECK-DAG: call {{.*}} @_ZN13TmplWithArrayIbLi10EEixEi
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// CHECK-DAG: call {{.*}} @_ZN13TmplWithArrayIbLi10EE5func1Ei
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// CHECK-DAG: call {{.*}} @_ZN13TmplWithArrayIbLi10EE5func2Ei
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