[LLVMbugs] [Bug 4659] New: thumb-2 emits invalid instruction sub.w sp, rX, #xx

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=4659

           Summary: thumb-2 emits invalid instruction sub.w sp,rX,#xx
           Product: new-bugs
           Version: unspecified
          Platform: Macintosh
        OS/Version: MacOS X
            Status: NEW
          Severity: normal
          Priority: P2
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: deeppatel1987 at gmail.com
                CC: asl at math.spbu.ru, llvmbugs at cs.uiuc.edu


Created an attachment (id=3265)
 --> (http://llvm.org/bugs/attachment.cgi?id=3265)
reduction, but not very small

The attached reduction shows Thumb-2 emitting invalid instructions.

If you're using gas, you may need the attached patch to get to the bad "sub.w
sp,r7,#12" error this PR is about.


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