https://bugs.llvm.org/show_bug.cgi?id=35736
Bug ID: 35736
Summary: ThinLTO-generated IR yields assembler error on i686
MSVC
Product: libraries
Version: trunk
Hardware: PC
OS: Windows NT
Status: NEW
Severity: enhancement
Priority: P
Component: Backend: X86
Assignee: unassignedb...@nondot.org
Reporter: a...@crichton.co
CC: llvm-bugs@lists.llvm.org
Created attachment 19597
--> https://bugs.llvm.org/attachment.cgi?id=19597&action=edit
reduced IR
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 [1] 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.
[1]:
https://ci.appveyor.com/project/rust-lang/rust/build/1.0.5799/job/psia8hh71alrhuu3
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