<div dir="ltr">That sounds like a PC-relative relocation failure. Usually this happens when the relocation target is more than 2 GB away from the source. Try using the large code model or tweaking the memory manager.<div><br></div><div>It turns out it's surprisingly hard to portably allocate some memory and then allocate some more within a 2 GB offset of the first allocation in a 64-bit process. For various reasons that I don't understand, reserving 2 GB of address space upfront and allocating from that is not workable for some MCJIT clients.</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, May 19, 2015 at 7:19 AM, Ramkumar Ramachandra <span dir="ltr"><<a href="mailto:artagnon@gmail.com" target="_blank">artagnon@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi,<div><br></div><div>We are seeing sporadic crashes since we migrated to MCJIT on Win64. The same tests pass without issues on Mac64 and Linux64. The issue is this assertion failure in RuntimeDyldELF.c:</div><div><br></div><div> RealOffset <= INT32_MAX && RealOffset >= INT32_MIN</div><div><br></div><div>I haven't managed to successfully catch the failure in Visual to try and debug it. Any tips on how to make progress?</div><div><br></div><div>Oh, and we're on LLVM 3.5.</div><div><br></div><div>Thanks.</div><div><br></div><div>Ram</div></div>
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