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[SYCL][NVPTX] Do not decompose SYCL functor unless necessary (#14434)
CUDA backend can support passing pointer in the generic address space. The patch prevent the decomposition of the SYCL functor if there is no special types in it. --------- Signed-off-by: Victor Lomuller <victor@codeplay.com>
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| Original file line number | Diff line number | Diff line change |
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| // RUN: %clang_cc1 -fsycl-is-device -triple nvptx64-nvidia-cuda -ast-dump %s | FileCheck %s -check-prefix=ALL -check-prefix=DECOMP | ||
| // RUN: %clang_cc1 -fsycl-is-device -fno-sycl-decompose-functor -triple nvptx64-nvidia-cuda -ast-dump %s | FileCheck %s -check-prefix=ALL -check-prefix=NODECOMP | ||
| // RUN: %clang_cc1 -fsycl-is-device -fsycl-decompose-functor -triple nvptx64-nvidia-cuda -ast-dump %s | FileCheck %s -check-prefix=ALL -check-prefix=DECOMP | ||
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| #include "Inputs/sycl.hpp" | ||
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| class with_acc { | ||
| public: | ||
| int *d; | ||
| sycl::accessor<char, 1, sycl::access::mode::read> AccField; | ||
| }; | ||
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| class wrapping_acc { | ||
| public: | ||
| with_acc acc; | ||
| void operator()() const { | ||
| } | ||
| }; | ||
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| class pointer_wrap { | ||
| public: | ||
| int *d; | ||
| void operator()() const { | ||
| } | ||
| }; | ||
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| class empty { | ||
| public: | ||
| void operator()() const { | ||
| } | ||
| }; | ||
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| int main() { | ||
| sycl::queue q; | ||
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| q.submit([&](sycl::handler &cgh) { | ||
| wrapping_acc acc; | ||
| cgh.single_task(acc); | ||
| }); | ||
| // ALL: FunctionDecl {{.*}} _ZTS12wrapping_acc 'void (__wrapper_class, __global char *, sycl::range<1>, sycl::range<1>, sycl::id<1>)' | ||
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| q.submit([&](sycl::handler &cgh) { | ||
| pointer_wrap ptr; | ||
| cgh.single_task(ptr); | ||
| }); | ||
| // NODECOMP: FunctionDecl {{.*}} _ZTS12pointer_wrap 'void (pointer_wrap)' | ||
| // DECOMP: FunctionDecl {{.*}} _ZTS12pointer_wrap 'void (__global int *)' | ||
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| q.submit([&](sycl::handler &cgh) { | ||
| empty e; | ||
| cgh.single_task(e); | ||
| }); | ||
| // ALL: FunctionDecl {{.*}} _ZTS5empty 'void ()' | ||
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| return 0; | ||
| } |