[llvm-bugs] [Bug 44337] New: IR with double constant doesn't work with OrcJIT build by MSVC

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=44337

            Bug ID: 44337
           Summary: IR with double constant doesn't work with OrcJIT build
                    by MSVC
           Product: libraries
           Version: 9.0
          Hardware: PC
                OS: Windows XP
            Status: NEW
          Severity: normal
          Priority: P
         Component: OrcJIT
          Assignee: unassignedbugs at nondot.org
          Reporter: akornilov.82 at gmail.com
                CC: 1101.debian at gmail.com, llvm-bugs at lists.llvm.org

Created attachment 22946
  --> https://bugs.llvm.org/attachment.cgi?id=22946&action=edit
The IR module

Precondition:
LLVM 9.0.0 built by MSVC 2019.

Steps to reproduce:
1) Load 'module.bc' to memory from the file.
2) Add module to LLLazyJIT.
3) Request address of function 'calculate'.
4) Call function 'calculate'.

Expected result:
The function should be executed fine.

Actual result:
The OrcJIT failed on an assertion Core.cpp:867:
Assertion failed: I != Symbols.end() && "Symbol not found", file
C:\Workspace\llvm-9.0.0.src\lib\ExecutionEngine\Orc\Core.cpp, line 867

Note:
I figured out that the missed symbol is __real at 40091eb851eb851f. It appears
after IR code is compiled by llc to assembler.

This issue is not observed on Linux and MinGW builds on Windows.

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