[llvm-bugs] [Bug 35736] New: ThinLTO-generated IR yields assembler error on i686 MSVC
llvm-bugs at lists.llvm.org
Sat Dec 23 14:28:09 PST 2017
Bug ID: 35736
Summary: ThinLTO-generated IR yields assembler error on i686
OS: Windows NT
Component: Backend: X86
Assignee: unassignedbugs at nondot.org
Reporter: alex at crichton.co
CC: llvm-bugs at lists.llvm.org
Created attachment 19597
We've almost enabled ThinLTO by default in rustc and we're down to (hopefully)
the last few errors! One that we just came across  was reduced to a smaller
test case (attached).
The test case seems to indicate that an `available_externally` function causes
issues when generating the object file on i686-pc-windows-msvc. I've been
reproducing this locally with:
$ llc ./foo.ll -filetype=obj
This is against a pretty old (at this point) fork of LLVM, but I think that the
issue is still present on trunk.
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