[all-commits] [llvm/llvm-project] 3397c3: Inline stack probes immediately after `allocateSta...

[CSharperMantle via All-commits]

  Branch: refs/heads/release/22.x
  Home:   https://github.com/llvm/llvm-project
  Commit: 3397c37d5d31e4d4cf1226ba1c36824aa2287252
      https://github.com/llvm/llvm-project/commit/3397c37d5d31e4d4cf1226ba1c36824aa2287252
  Author: Rong "Mantle" Bao <rong.bao at csmantle.top>
  Date:   2026-06-12 (Fri, 12 Jun 2026)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVFrameLowering.cpp
    A llvm/test/CodeGen/RISCV/stack-probing-dynamic-nonentry.ll

  Log Message:
  -----------
  Inline stack probes immediately after `allocateStack` in `eliminateCallFramePseudoInstr` (#195456)

[ Upstream commit 589faedadf141e5e63f7a1e92a0327fc9bdc9b09 ]

Revert `bltu` in probing loops to `blt` because commit
f162be248636046a20e71209e139347e084b637a isn't applied on release/22.x
yet.

Link: https://github.com/llvm/llvm-project/pull/192485 ("[RISCV] Use
 unsigned comparison for stack clash probing loop")

---

This PR adds a call to `inlineStackProbe` immediately after
`allocateStack` in `eliminateCallFramePseudoInstr`. This allows code
generation for stack probe pseudoinstructions in non-entry BBs.

Fixes #195454.



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