[all-commits] [llvm/llvm-project] 1de181: [SystemZ] Address issue with supper large stack fr...

[Zibi Sarbinowski via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 1de1818fabb474d724741ee28baa5a7e1d972b00
      https://github.com/llvm/llvm-project/commit/1de1818fabb474d724741ee28baa5a7e1d972b00
  Author: Zibi Sarbinowski <zibi at ca.ibm.com>
  Date:   2024-06-27 (Thu, 27 Jun 2024)

  Changed paths:
    M llvm/lib/Target/SystemZ/SystemZFrameLowering.cpp
    A llvm/test/CodeGen/SystemZ/systemz-large-stack-frames.ll
    M llvm/test/CodeGen/SystemZ/zos-prologue-epilog.ll

  Log Message:
  -----------
  [SystemZ] Address issue with supper large stack frames (#96318)

This PR fixes the following failure by adjusting the calculation of
maximum displacement from Stack Pointer.

`LLVM ERROR: Error while trying to spill R5D from class ADDR64Bit:
Cannot scavenge register without an emergency spill slot!
`



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