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Frameworks & web · #llvm
When a hot helper lives in another source file, traditional separate compilation keeps it as a call. LLVM’s ThinLTO lets you inline it at link time without the compile‑time cost of headers. This blog walks through the problem, the LTO mechanism, a concrete test case, and the practical trade‑offs.
Learn how LLVM ThinLTO reduces link times while keeping most optimization benefits, with a concrete example and practical checks.
ThinLTO link errors like undefined __llvm_tltsymbol usually mean compile and link settings diverged. This guide walks through ordered checks, fixes, and escalation criteria for large C++ builds.
Learn why LLVM refuses to vectorize your loops and how to read cost-model diagnostics, compare LoopVectorize with Polly, and apply targeted fixes.
A diagnostic guide for resolving LLVM Link Time Optimization (LTO) failures, covering linker incompatibility, bitcode verification, and ThinLTO for memory management.
A step‑by‑step guide to identify and fix LLVM IR verifier failures, with concrete examples, commands, and escalation paths.
Your LLVM pass compiles and registers cleanly but never transforms anything. Diagnose new Pass Manager failures: scheduling, extension points, PreservedAnalyses, and when to escalate upstream.
A decision guide to LLVM loop vectorization on x86-64: compare default, forced, and pragma-based options, then validate with optimization remarks, disassembly, and benchmarks.
Learn how Clang's Sema component produces clear C++20 concept diagnostics, including fix-it hints, and see a worked example that shows what to expect from recent LLVM versions.
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