6b86813945
Like CUDA and OpenCL, the SYCL specification says that throwing and catching exceptions in device functions is not supported, so this change extends the logic for adding the NoUnwind attribute to SYCL. The existing convergent.cpp test, which tests that the convergent attribute is added to functions by default, is renamed and reused to test that the nounwind attribute is added by default. This test now has -fexceptions added to it, which the driver adds by default as well. The obvious question here is why not simply change the driver to remove -fexceptions. This change follows the direction given by the TODO comment because removing -fexceptions would also disable the __EXCEPTIONS macro, which should reflect whether exceptions are enabled on the host, rather than on the device, to avoid conflicts in types shared between host and device. Reviewed By: bader Differential Revision: https://reviews.llvm.org/D147097
27 lines
585 B
C++
27 lines
585 B
C++
// RUN: %clang_cc1 -fsycl-is-device -emit-llvm -disable-llvm-passes \
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// RUN: -triple spir64 -fexceptions -emit-llvm %s -o - | FileCheck %s
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int foo();
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// CHECK: define dso_local spir_func void @_Z3barv() [[BAR:#[0-9]+]]
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// CHECK: attributes [[BAR]] =
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// CHECK-SAME: convergent
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// CHECK-SAME: nounwind
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void bar() {
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int a = foo();
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}
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int foo() {
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return 1;
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}
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template <typename Name, typename Func>
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__attribute__((sycl_kernel)) void kernel_single_task(const Func &kernelFunc) {
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kernelFunc();
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}
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int main() {
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kernel_single_task<class fake_kernel>([] { bar(); });
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return 0;
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}
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