[all-commits] [llvm/llvm-project] 7fad30: [AArch64][SME] Make coalescer barrier available wi...

[Sander de Smalen via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 7fad304a0310836c88aefd2a01f825e70bb14aed
      https://github.com/llvm/llvm-project/commit/7fad304a0310836c88aefd2a01f825e70bb14aed
  Author: Sander de Smalen <sander.desmalen at arm.com>
  Date:   2024-03-18 (Mon, 18 Mar 2024)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64SMEInstrInfo.td
    M llvm/test/CodeGen/AArch64/sme-call-streaming-compatible-to-normal-fn-wihout-sme-attr.ll

  Log Message:
  -----------
  [AArch64][SME] Make coalescer barrier available without +sme. (#85311)

For each call that changes the streaming-mode ISel inserts a
COALESCER_BARRIER node for the FP and (non-scalable) vector arguments to
the callee.

When calling a non-streaming function from a streaming-compatible
function, it's not required to have +sme (in case the SME code-path is
not actually executed at runtime). The patterns to match the
COALESCER_BARRIER however were still predicated with `HasSME`, which is
incorrect. This patch tries to fix that.



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