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[Clang][Driver] Enable offloadlib option for clang-cl #162980

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[Clang][Driver] Enable offloadlib option for clang-cl #162980

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c6bc633
Enable offloadlib option in compilation for SYCL
jinge90 Oct 11, 2025
b111f6f
Merge branch 'main' into enable_offloadlib_for_sycl
jinge90 Oct 11, 2025
4cc176a
Merge remote-tracking branch 'upstream/main' into enable_offloadlib_f…
jinge90 Oct 15, 2025
8ae4161
add lit test for [no-]offloadlib in CL mode
jinge90 Oct 15, 2025
da883fe
cover clang/clangxx driver in lit
jinge90 Oct 21, 2025
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6 changes: 3 additions & 3 deletions clang/include/clang/Driver/Options.td
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Original file line number Diff line number Diff line change
Expand Up @@ -5976,10 +5976,10 @@ def : Flag<["-"], "nocudainc">, Alias<no_offload_inc>;
def no_offloadlib
: Flag<["--"], "no-offloadlib">,
MarshallingInfoFlag<LangOpts<"NoGPULib">>,
Visibility<[ClangOption, CC1Option, FlangOption, FC1Option]>,
HelpText<"Do not link device library for CUDA/HIP device compilation">;
Visibility<[ClangOption, CC1Option, CLOption, FlangOption, FC1Option]>,
HelpText<"Do not link device library for CUDA/HIP/SYCL device compilation">;
def offloadlib : Flag<["--"], "offloadlib">,
Visibility<[ClangOption, CC1Option, FlangOption, FC1Option]>,
Visibility<[ClangOption, CC1Option, CLOption, FlangOption, FC1Option]>,
HelpText<"Link device libraries for GPU device compilation">;
def : Flag<["-"], "nogpulib">,
Alias<no_offloadlib>,
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5 changes: 5 additions & 0 deletions clang/test/Driver/sycl.c
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Expand Up @@ -25,3 +25,8 @@
// RUN: %clang_cl -### -fsycl -- %s 2>&1 | FileCheck %s --check-prefix=DEFAULT

// DEFAULT: "-sycl-std=2020"

// RUN: %clang -### -fsycl -sycl-std=2017 --no-offloadlib -- %s 2>&1 | FileCheck %s --check-prefix=CHECK-NO-OFFLOADLIB
// RUN: %clangxx -### -fsycl -sycl-std=2017 --no-offloadlib -- %s 2>&1 | FileCheck %s --check-prefix=CHECK-NO-OFFLOADLIB
// RUN: %clang_cl -### -fsycl -sycl-std=2017 --no-offloadlib -- %s 2>&1 | FileCheck %s --check-prefix=CHECK-NO-OFFLOADLIB
// CHECK-NO-OFFLOADLIB-NOT: warning: unknown argument ignored in clang-cl: '--no-offloadlib'
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I probably missed, but is there a corresponding test for clang driver as well?

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Hi, @srividya-sundaram
clang and clangxx driver supports this option even without this PR, I add corresponding test to cover clang/clangxx driver to align with other tests in clang/test/Driver/sycl.c.
Thanks very much.

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