https://llvm.org/bugs/show_bug.cgi?id=31884
Bug ID: 31884
Summary: COFF LTO creates object files MSVC cannot read
Product: libraries
Version: trunk
Hardware: PC
OS: Windows NT
Status: NEW
Severity: normal
Priority: P
Component: MC
Assignee: unassignedb...@nondot.org
Reporter: r...@google.com
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
I tried to link medium size programs with LLD's new command line option,
/msvclto. That option does LTO in LLD and then pass resulting object files to
MSVC link.exe.
When I attempt to link ninja, MSVC link failed with the following error.
lld-lto-5b59ce.obj : fatal error LNK1243: invalid or corrupt file: COMDAT
section 0x22C associated with following section 0x22F
Looks like MSVC cannot handle forward references when reading associated
sections. We probably have to emit associated sections first and then
references to them next.
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