[LLVMbugs] [Bug 11615] New: MIPS backend generates unaligned zero stores

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=11615

             Bug #: 11615
           Summary: MIPS backend generates unaligned zero stores
           Product: libraries
           Version: trunk
          Platform: All
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Backend: MIPS
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: mans at mansr.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified


Created attachment 7761
  --> http://llvm.org/bugs/attachment.cgi?id=7761
Handle unaligned addresses in zero-store pattern

The MIPS backend has a special pattern for storing zeros using the zero
register. This fails to properly handle unaligned addresses.  The attached
patch fixes this.

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