On Tuesday, 18 February 2025 at 18:05:41 UTC, Johan wrote: > It is likely related to LLVM version. Did you already check > that? Possibly a subtle change in API. LDC 1.40.0 (git commit 9296fd6fcc) reproduces the problem with both LLVM 15.0 and 19.1, so for now it seems that this isn't related to something having changed on the LLVM side.