[libclc] Work around libclc-remangler ABI mismatch on RHEL 8#21403
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wenju-he wants to merge 1 commit intointel:syclfrom
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[libclc] Work around libclc-remangler ABI mismatch on RHEL 8#21403wenju-he wants to merge 1 commit intointel:syclfrom
wenju-he wants to merge 1 commit intointel:syclfrom
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intel/llvm nightly builds fail on RHEL 8.0 (GCC 7.5.0) due to an ABI mismatch in the host tool `libclc-remangler`. `libclc-remangler` links against Clang/LLVM libraries built with the host compiler, but the tool itself is built with the just-built Clang. This causes an ABI issue around `std::optional` parameter in `MemoryBuffer::getFileOrSTDIN`. As a workaround, replace the `getFileOrSTDIN` + `parseIR` buffer path with `llvm::parseIRFile(InputIRFilename, ...)`, avoiding the problematic interface. This is a temporary fix; the proper long-term solution is to move `libclc-remangler` out of libclc (runtime) or remove it.
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revert in #21407 for safety. close this pr. |
wenju-he
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Mar 9, 2026
Cherry-pick upstream commit a3a15f3 which moves libclc from LLVM_ALL_PROJECTS to LLVM_DEFAULT_RUNTIMES. Update configure, build and deploy to enable libclc runtime build. jira: CMPLRLLVM-73202 (cherry picked from commit f3962f6) Also cherry-pick from intel#21403 to w/a libclc-remangler ABI mismatch on RHEL 8. This PR is for sycl-web and I'll follow-up in sycl branch to remove libclc-remangler tool.
wenju-he
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Mar 9, 2026
Cherry-pick upstream commit a3a15f3 which moves libclc from LLVM_ALL_PROJECTS to LLVM_DEFAULT_RUNTIMES. Update configure, build and deploy to enable libclc runtime build. jira: CMPLRLLVM-73202 (cherry picked from commit f3962f6) Also cherry-pick from intel#21403 to w/a libclc-remangler ABI mismatch on RHEL 8. This PR is temporary fix to unblock sycl-web and I'll follow-up in sycl branch to remove libclc-remangler tool.
sarnex
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Mar 10, 2026
Cherry-pick upstream commit a3a15f3 which moves libclc from LLVM_ALL_PROJECTS to LLVM_DEFAULT_RUNTIMES. Update configure, build and deploy to enable libclc runtime build. jira: CMPLRLLVM-73202 (cherry picked from commit f3962f6) Also cherry-pick from #21403 to w/a libclc-remangler ABI mismatch on RHEL 8. This PR is temporary fix to unblock sycl-web and I'll follow-up in sycl branch to remove libclc-remangler tool.
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Fix libclc runtime regression from f3962f6 (CMPLRLLVM-73868).
intel/llvm nightly builds fail on RHEL 8.0 with GCC 7.5.0 due to an ABI mismatch in the host tool
libclc-remangler.libclc-remanglerlinks against Clang/LLVM libraries built with the host compiler, but the tool itself is built with the just-built Clang. This causes an ABI issue aroundstd::optionalparameter inMemoryBuffer::getFileOrSTDIN.As a workaround, replace the
getFileOrSTDIN+parseIRbuffer path withllvm::parseIRFile(InputIRFilename, ...), avoiding the problematic interface.This is a temporary fix; the proper long-term solution is to move
libclc-remanglerout of libclc (runtime) or remove it.