https://llvm.org/bugs/show_bug.cgi?id=25307
Bug ID: 25307
Summary: "fatal error: error in backend" code with exceptions
in clang for msvc in Release x64 configuration
Product: clang
Version: trunk
Hardware: PC
OS: Windows NT
Status: NEW
Severity: normal
Priority: P
Component: -New Bugs
Assignee: unassignedclangb...@nondot.org
Reporter: adam...@gmail.com
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
Created attachment 15151
--> https://llvm.org/bugs/attachment.cgi?id=15151&action=edit
Sample code to reproduce the error
I used the most recent build available to download:
LLVM-3.8.0-r250698-win32.exe
If I try to compile attached code in Visual Studio 2010 (using Platform
Toolset: LLVM-vs2010, Configuration: Release and Platform: x64) then I get an
error:
CL : fatal error : error in backend: assembler label '.LBB0_-1' can not be
undefined
I can reproduce it only in configuration Release x64 with O2 flag.
I know exceptions aren't ready yet for MSVC, but maybe this scenario will be
helpful.
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