[LLVMbugs] [Bug 17180] New: Use of Thumb instructions in non-Thumb mode

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=17180

            Bug ID: 17180
           Summary: Use of Thumb instructions in non-Thumb mode
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Backend: ARM
          Assignee: unassignedbugs at nondot.org
          Reporter: sanxiyn at gmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

r189269 log message claims to fix "the Thumb pseudo tPICADD was used for both
ARM and Thumb mode functions, which is obviously wrong", but the commit
actually doesn't fix the bug. Opc = isThumb2() ? tPICADD : PICADD is
calculated, but not used at all.

Changing tPICADD to PICADD fixed my issue, but I am not sure of the proper fix.
Hopefully the proper fix is obvious to people familiar with the code.

I am sorry that I cannot provide the test case (reduced or otherwise) so that
you can reproduce the bug, but hopefully that also is obvious to people
familiar with the code.

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