[LLVMbugs] [Bug 24014] New: PowerPC inline assembly "&" constraint failure

[bugzilla-daemon at llvm.org]

https://llvm.org/bugs/show_bug.cgi?id=24014

            Bug ID: 24014
           Summary: PowerPC inline assembly "&" constraint failure
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Backend: PowerPC
          Assignee: unassignedbugs at nondot.org
          Reporter: anton at samba.org
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Created attachment 14545
  --> https://llvm.org/bugs/attachment.cgi?id=14545&action=edit
Testcase showing broken handling of "&"

We specify that the outputs cannot overlap the inputs, but the attached
testcase when built with -O3 fails:

  8c:    28 e8 a0 7f     lwarx   r29,0,r29
  90:    ff ff bd 33     addic   r29,r29,-1
  94:    2d e9 a0 7f     stwcx.  r29,0,r29

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