[llvm-bugs] [Bug 24628] New: Variable length allocas with large alignments have improper stack probes

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=24628

            Bug ID: 24628
           Summary: Variable length allocas with large alignments have
                    improper stack probes
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P
         Component: Common Code Generator Code
          Assignee: unassignedbugs at nondot.org
          Reporter: john.kare.alsaker at gmail.com
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

Allocas are aligned after allocation, which means that there are up to
<alignment - 1> bytes potentially unprobed.


See http://reviews.llvm.org/D11881 for a failed patch.

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