[Driver][SYCL] Pass as system headers for external SYCL host compilation #18449
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…lation The use of `-fsycl-host-compiler=arg` allows a user to specify a 3rd party compiler to perform host compilation when using `-fsycl`. The compilation will also include the SYCL specific headers. Pass in these headers as system headers with `-isystem` so they are treated as system headers as opposed to user headers. Signed-off-by: Michael D Toguchi <[email protected]>
hchilama
approved these changes
May 13, 2025
tahonermann
reviewed
May 13, 2025
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| HostCompileArgs.push_back(IsMSVCHostCompiler ? "-I" : "-isystem"); | ||
| HostCompileArgs.push_back(TCArgs.MakeArgString(SYCLDir)); | ||
| HostCompileArgs.push_back("-I"); | ||
| HostCompileArgs.push_back(IsMSVCHostCompiler ? "-I" : "-isystem"); | ||
| HostCompileArgs.push_back(TCArgs.MakeArgString(STLWrappersDir)); | ||
| HostCompileArgs.push_back("-I"); | ||
| HostCompileArgs.push_back(IsMSVCHostCompiler ? "-I" : "-isystem"); |
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Can we use /external:I for MSVC?
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Looks like we can. I double checked our release support matrix, and the releases we support doesn't require the additional /external:experimental flag.
tahonermann
approved these changes
May 14, 2025
srividya-sundaram
approved these changes
May 14, 2025
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The use of
-fsycl-host-compiler=argallows a user to specify a 3rd party compiler to perform host compilation when using-fsycl. The compilation will also include the SYCL specific headers. Pass in these headers as system headers with-isystemso they are treated as system headers as opposed to user headers.