[llvm-bugs] [Bug 38782] New: lld-link /lib allows creating mixed-bitness lib files; lib.exe doesn't allow that

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=38782

            Bug ID: 38782
           Summary: lld-link /lib allows creating mixed-bitness lib files;
                    lib.exe doesn't allow that
           Product: lld
           Version: unspecified
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: COFF
          Assignee: unassignedbugs at nondot.org
          Reporter: nicolasweber at gmx.de
                CC: llvm-bugs at lists.llvm.org

C:\src\chrome\src>type f1.c
void f1() {}

C:\src\chrome\src>type f2.c
void f2() {}

C:\src\chrome\src>"third_party\llvm-build\Release+Asserts\bin\clang-cl.exe"
-m64 -c f1.c

C:\src\chrome\src>"third_party\llvm-build\Release+Asserts\bin\clang-cl.exe"
-m32 -c f2.c

C:\src\chrome\src>lib /out:foo.lib f1.obj f2.obj
Microsoft (R) Library Manager Version 14.14.26428.1
Copyright (C) Microsoft Corporation.  All rights reserved.

f2.obj : fatal error LNK1112: module machine type 'x86' conflicts with target
machine type 'x64'

C:\src\chrome\src>"third_party\llvm-build\Release+Asserts\bin\lld-link.exe"
/lib /out:foo.lib f2.obj f1.obj


Not allowing this seems like a good choice.

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