[SYCL] Switch to using integration footer by default #3777

dm-vodopyanov · 2021-05-18T15:49:09Z

Added spec_constant_integration.hpp header file, which is included from
integration footer.
Added get_spec_constant_symbolic_ID_wrapper which in combination
with spec_constant_integration.hpp allows us to avoid exploiting a UB
related to instantiating a template before we have seen all its
specializations.

Replaced -fsycl-use-footer compiler flag with -fno-sycl-use-footer
flag with the opposite semantics.

…e header This patch moves functions which use `__builtin_unique_stable_name` to a separate header which should only be included to integration footer. This was made to get rid of UB when the compiler sees defenition of the template specialization before seeing a declaration.

bader · 2021-05-18T16:31:59Z

This patch moves functions which use __builtin_unique_stable_name to a
separate header which should only be included to integration footer.

This description is not accurate KernelInfoData method still uses __builtin_unique_stable_name:

llvm/sycl/include/CL/sycl/detail/kernel_desc.hpp

Line 102 in 22f9009

static constexpr auto n = __builtin_unique_stable_name(T);

romanovvlad · 2021-05-19T04:49:53Z

This patch moves functions which use __builtin_unique_stable_name to a
separate header which should only be included to integration footer.

This description is not accurate KernelInfoData method still uses __builtin_unique_stable_name:

llvm/sycl/include/CL/sycl/detail/kernel_desc.hpp

Line 102 in 22f9009

static constexpr auto n = __builtin_unique_stable_name(T);

Right, it is not directly related to __builtin_unique_stable_name, we rather need to guarantee that calls of get_spec_constant_symbolic_ID appear after specializations of this functions which defined in the integration footer.

…_stable_name-to-separate-header

clang/lib/Sema/SemaSYCL.cpp

…bled by default for any app

erichkeane · 2021-06-01T17:37:33Z

I don't think we should be putting the last patch into the repo, we are about a week and a half away from getting the actual implementation, and this will delay it.

clang/test/Driver/sycl-preprocess.cpp

…e_name-to-separate-header

erichkeane

Just 2 CFE test nits.

clang/test/CodeGenSYCL/anonymous_integration_footer.cpp

clang/test/CodeGenSYCL/anonymous_integration_footer2.cpp

…din_unique_stable_name-to-separate-header

Added a wrapper, which is defined in integration footer only after we define all specializations for `get_spec_constant_symbolic_ID`. By using it we ensure that we do not try to instantiate `get_spec_constant_symbolic_ID` until after we made all required specializations.

…eparate-header' of github.com:dm-vodopyanov/llvm into private/dvodopya/move-__buildin_unique_stable_name-to-separate-header

…din_unique_stable_name-to-separate-header

The primary function/wrapper which is used by DPC++ RT is left as-is, i.e. `get_spec_constant_symbolic_ID`. The internal function and its specialziations which are generated by the compiler renamed to `get_spec_constant_symbolic_ID_impl`.

romanovvlad

LGTM

AlexeySachkov · 2021-06-28T12:31:08Z

@AGindinson, @mdtoguchi, could you please take a look at the driver part? Basically, we have enabled integration footer by default and turned existing -fsycl-use-footer into -fno-sycl-use-footer and adjusted tests. However, I'm not exactly sure that we have enough coverage for this new option.

@AaronBallman, @elizabethandrews, @premanandrao, could you please take a look at FE part? The changes are quite simple: we have added a few more includes to emitted integration footer + did renaming get_spec_constant_symbolic_ID -> get_spec_constant_symbolic_ID_impl

elizabethandrews

FE changes LGTM. Thanks!

clang/test/Driver/sycl-int-footer.cpp

…din_unique_stable_name-to-separate-header

…eparate-header' of github.com:dm-vodopyanov/llvm into private/dvodopya/move-__buildin_unique_stable_name-to-separate-header

elizabethandrews

FE changes LGTM

romanovvlad

LGTM

* upstream/sycl: (649 commits) [SYCL][Driver][NFC] Update integration footer test for 32-bit host (intel#4039) [SYCL][L0] Initialize descriptor .stype and .pNext (intel#4032) [SYCL] Add sycl::kernel::get_kernel_bundle method (intel#3855) [SYCL] Add support for device UUID as a SYCL extension. (intel#3696) [SYCL][Matrix] Add spec document for the matrix extension interface and its first implementation for AMX (intel#3551) Fix debug build mangler test after PR#3992 (8f38045). (intel#4033) [Driver][SYCL] Restrict user -include file in final integration footer step (intel#4036) [SYCL] [Tests] Do not copy device binary image mocks (intel#4023) [SYCL][Doc] Update docs to reflect new compiler features (intel#4030) [SYCL][CUDA] cl_khr_fp16 extension connected to cuda PI. (intel#4029) [SYCL][NFC] Refactor RT unit tests (intel#4021) [SYCL] Switch to using integration footer by default (intel#3777) [SYCL][CUDA] Add the Use Default Stream property (intel#4004) Uplift GPU RT version for Linux to 21.24.20098 (intel#4003) [SYCL][CUDA] atomic_ref.fetch_add used for fp64 reduction if device.has(atomic64) (intel#3950) [Driver][SYCL] Differentiate host dependency link from regular host link (intel#4002) [SYCL][ESIMD] Support device half type in intrinsics. (intel#4024) [SYCL] Allow fpga_reg only for PODs and Trivially-copyable structs (intel#3643) [SYCL][FPGA] Restore legacy debug info version for the hardware (intel#3991) [SYCL][PI][L0] Force reset of memcpy command-list. (intel#4001) ...

dm-vodopyanov requested a review from a team as a code owner May 18, 2021 15:49

dm-vodopyanov requested a review from romanovvlad May 18, 2021 15:49

dm-vodopyanov added 2 commits May 18, 2021 18:50

Add missing EOL

dd66b44

Remove extra endif

22f9009

bader changed the title ~~[SYCL] Move __buildin_unique_stable_name dependent funcs to a separate header~~ [SYCL] Move __builtin_unique_stable_name dependent funcs to a separate header May 18, 2021

dm-vodopyanov changed the title ~~[SYCL] Move __builtin_unique_stable_name dependent funcs to a separate header~~ [SYCL] Move get_spec_constant_symbolic_ID to a separate header May 19, 2021

dm-vodopyanov added 3 commits May 20, 2021 20:03

Merge branch 'intel:sycl' into private/dvodopya/move-__buildin_unique…

3db201f

…_stable_name-to-separate-header

Merge branch 'intel:sycl' into private/dvodopya/move-__buildin_unique…

68187a5

…_stable_name-to-separate-header

Add -fsycl-use-footer to tests and include missing header to int footer

1bd1e94

dm-vodopyanov requested review from AaronBallman, elizabethandrews and premanandrao as code owners May 31, 2021 13:13

AlexeySachkov reviewed Jun 1, 2021

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elizabethandrews requested a review from erichkeane June 1, 2021 15:23

Enable __builtin_unique_stable_name in FE; Make -fsycl-use-footer ena…

1bd83e0

…bled by default for any app

dm-vodopyanov requested review from AGindinson and mdtoguchi as code owners June 1, 2021 17:33

mdtoguchi reviewed Jun 1, 2021

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clang/test/Driver/sycl-preprocess.cpp Show resolved Hide resolved

dm-vodopyanov added 5 commits June 9, 2021 16:16

Merge branch 'sycl' into private/dvodopya/move-__buildin_unique_stabl…

0c9e8e2

…e_name-to-separate-header

Fix some test failures

0d3e000

Merge branch 'sycl' into private/dvodopya/move-__buildin_unique_stabl…

224eb1a

…e_name-to-separate-header

Update PR to use new builtin

ed1686d

Fix SYCL :: basic_tests/SYCL-2020*** tests

feb54c4

erichkeane reviewed Jun 15, 2021

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clang/test/CodeGenSYCL/anonymous_integration_footer.cpp Outdated Show resolved Hide resolved

clang/test/CodeGenSYCL/anonymous_integration_footer2.cpp Outdated Show resolved Hide resolved

AlexeySachkov added 2 commits June 16, 2021 16:17

Fix check-clang

e56ee41

Merge remote-tracking branch 'sycl' into private/dvodopya/move-__buil…

30ce3d0

…din_unique_stable_name-to-separate-header

AlexeySachkov added 2 commits June 25, 2021 16:22

Merge branch 'private/dvodopya/move-__buildin_unique_stable_name-to-s…

3ef8887

…eparate-header' of github.com:dm-vodopyanov/llvm into private/dvodopya/move-__buildin_unique_stable_name-to-separate-header

AlexeySachkov dismissed stale reviews from mdtoguchi and AaronBallman via 3ef8887 June 25, 2021 13:27

Merge remote-tracking branch 'sycl' into private/dvodopya/move-__buil…

77e7988

…din_unique_stable_name-to-separate-header

AlexeySachkov removed the request for review from kbobrovs June 25, 2021 13:31

AlexeySachkov changed the title ~~[SYCL] Move get_spec_constant_symbolic_ID to a separate header~~ [SYCL] Switch to using integration footer by default Jun 25, 2021

AlexeySachkov added 4 commits June 28, 2021 10:10

Adjust sycl-offload-amdgcn.cpp test

68c1f1a

Merge remote-tracking branch 'sycl' into private/dvodopya/move-__buil…

30de609

…din_unique_stable_name-to-separate-header

Add a test for -fno-sycl-use-footer

37be540

Rename get_spec_constant_symbolic_ID

48e59c9

The primary function/wrapper which is used by DPC++ RT is left as-is, i.e. `get_spec_constant_symbolic_ID`. The internal function and its specialziations which are generated by the compiler renamed to `get_spec_constant_symbolic_ID_impl`.

romanovvlad reviewed Jun 28, 2021

View reviewed changes

Fix comment and clang-format

b73a756

elizabethandrews previously approved these changes Jun 28, 2021

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mdtoguchi reviewed Jun 28, 2021

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clang/test/Driver/sycl-int-footer.cpp Show resolved Hide resolved

AlexeySachkov added 3 commits June 29, 2021 12:38

Merge remote-tracking branch 'sycl' into private/dvodopya/move-__buil…

d5765f4

…din_unique_stable_name-to-separate-header

Add test for compiler phases w/ and w/o integration footer

8e58b19

Merge branch 'private/dvodopya/move-__buildin_unique_stable_name-to-s…

d5e10a2

…eparate-header' of github.com:dm-vodopyanov/llvm into private/dvodopya/move-__buildin_unique_stable_name-to-separate-header

AlexeySachkov dismissed elizabethandrews’s stale review via d5e10a2 June 29, 2021 11:17

An attempt to make sycl-int-footer.cpp OS-independent

9476403

AlexeySachkov requested review from mdtoguchi and elizabethandrews June 30, 2021 07:01

mdtoguchi approved these changes Jun 30, 2021

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elizabethandrews approved these changes Jun 30, 2021

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romanovvlad approved these changes Jun 30, 2021

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romanovvlad merged commit 4a6d21f into intel:sycl Jun 30, 2021

dm-vodopyanov deleted the private/dvodopya/move-__buildin_unique_stable_name-to-separate-header branch February 10, 2022 14:06

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[SYCL] Switch to using integration footer by default #3777

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dm-vodopyanov commented May 18, 2021 •

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