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[clang][SYCL] Emit canonical types in integration footer #16161

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Nov 25, 2024
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[clang][SYCL] Emit canonical types in integration footer #16161

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[clang][SYCL] Emit canonical types in integration footer
Fznamznon Nov 22, 2024
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Fznamznon Nov 25, 2024
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1 change: 1 addition & 0 deletions clang/lib/Sema/SemaSYCL.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -6969,6 +6969,7 @@ bool SYCLIntegrationFooter::emit(raw_ostream &OS) {
Policy.adjustForCPlusPlusFwdDecl();
Policy.SuppressTypedefs = true;
Policy.SuppressUnwrittenScope = true;
Policy.PrintCanonicalTypes = true;

llvm::SmallSet<const VarDecl *, 8> Visited;
bool EmittedFirstSpecConstant = false;
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32 changes: 32 additions & 0 deletions clang/test/CodeGenSYCL/int_footer_with_explicit_specialization.cpp
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@@ -0,0 +1,32 @@
// RUN: %clang_cc1 -fsycl-is-device -internal-isystem %S/Inputs -triple spir64-unknown-unknown -fsycl-int-footer=%t.footer.h -emit-llvm %s -o -
// RUN: FileCheck -input-file=%t.footer.h %s --check-prefix=CHECK-FOOTER

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// This test checks that integration footer is emitted correctly when a
// device_global has an explicit template specialization in template arguments.

#include "sycl.hpp"

namespace sycl {
template <typename T> struct X {};
template <> struct X<int> {};
namespace detail {
struct Y {};
} // namespace detail
template <> struct X<detail::Y> {};
} // namespace sycl

using namespace sycl;
template <typename T, typename = X<detail::Y>> struct Arg1 { T val; };

using namespace sycl::ext::oneapi;
template <typename properties_t>
device_global<properties_t> dev_global;

SYCL_EXTERNAL auto foo() {
(void)dev_global<Arg1<int>>;
}

// CHECK-FOOTER: __sycl_device_global_registration::__sycl_device_global_registration() noexcept {
// CHECK-FOOTER-NEXT: device_global_map::add((void *)&::dev_global<Arg1<int, sycl::X<sycl::detail::Y>>>, "_Z10dev_globalI4Arg1IiN4sycl1XINS1_6detail1YEEEEE");
// CHECK-FOOTER-NEXT: }
// CHECK-FOOTER-NEXT: } // namespace (unnamed)
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