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Align SYCL no-RDC with the upstream flow: clang-linker-wrapper --emit-fatbin-only emits finalized post-link device images in a single offload binary container, without wrapping or host linking, and the host compilation wraps it for runtime registration via -foffload-include-binary. The same container also supports device-only image extraction. Each container entry carries the image together with the SYCL runtime metadata (target, image format, kernel entries, properties and compile/link options). The host compilation reads the entries back, builds the descriptor-based registration the SYCL runtime expects and links it into the host module. Image dumping and compression are shared between the wrapped and fat binary outputs. NativeCPU and --sycl-embed-ir for NVPTX/AMDGCN, which add host objects, are diagnosed with --emit-fatbin-only. Related to CMPLRLLVM-77274 ticket. Co-Authored-By: OpenAI Codex <noreply@openai.com>
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October 20, 2026 01:20
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Align SYCL no-RDC with the upstream flow: clang-linker-wrapper
--emit-fatbin-only emits finalized post-link device images in a single
offload binary container, without wrapping or host linking, and the host
compilation wraps it for runtime registration via -foffload-include-binary.
The same container also supports device-only image extraction.
Each container entry carries the image together with the SYCL runtime
metadata (target, image format, kernel entries, properties and compile/link
options). The host compilation reads the entries back, builds the
descriptor-based registration the SYCL runtime expects and links it into the
host module.
Image dumping and compression are shared between the wrapped and fat binary
outputs. NativeCPU and --sycl-embed-ir for NVPTX/AMDGCN, which add host
objects, are diagnosed with --emit-fatbin-only.
Related to CMPLRLLVM-77274 ticket.
Co-Authored-By: OpenAI Codex noreply@openai.com