[LLVMbugs] [Bug 23481] New: MISched: Tail call argument dependency handling very conservative

[bugzilla-daemon at llvm.org]

https://llvm.org/bugs/show_bug.cgi?id=23481

            Bug ID: 23481
           Summary: MISched: Tail call argument dependency handling very
                    conservative
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: Common Code Generator Code
          Assignee: unassignedbugs at nondot.org
          Reporter: aschwaighofer at apple.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

In PR23459 I fixed a bug in how we handle tail call arguments during building
the dependence graph for scheduling.

This fix essentially made every incoming and outgoing argument stack slot
dependent. We should add an analysis that analyses the actual stack slots for
overlap.

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