<h3><details><summary>Original Reporter info from Mantis: <small>Xor-el</small></summary><small> - **Reporter name:** Ugochukwu Mmaduekwe </small></details></h3> ## Description: I discovered the bug when I tried compiling and running my CryptoLib4Pascal UnitTests with FPC Trunk version 3.3.1-r43642 for x86_64. In my case, it caused random access violations. When certain methods are inlined, the compiler tends to produce incorrect code which tends to crash when run. ## Steps to reproduce: To reproduce the crash, compile the demo project attached (InliningBug.lpr) with the affected FPC version (FPC Trunk version 3.3.1-r43642 for x86_64) making sure Inlining is enabled.<br/> Disabling optimizations does not seem to resolve the issue in my case.<br/> the only workaround is disabling Inlining using {$INLINE OFF} ## Mantis conversion info: - **Mantis ID:** 36402 - **OS:** Windows 10 - **OS Build:** 1903 - **Build:** r43642 - **Platform:** x86_64 - **Version:** 3.3.1 - **Monitored by:** » Xor-el (Ugochukwu Mmaduekwe), » @CuriousKit (J. Gareth Moreton)