[all-commits] [llvm/llvm-project] c0262e: [SystemZ] Fix internal error with single-element v...

[Ulrich Weigand via All-commits]

  Branch: refs/heads/release/22.x
  Home:   https://github.com/llvm/llvm-project
  Commit: c0262e742787e5997a6df2b4b56830df00a6ff11
      https://github.com/llvm/llvm-project/commit/c0262e742787e5997a6df2b4b56830df00a6ff11
  Author: Ulrich Weigand <ulrich.weigand at de.ibm.com>
  Date:   2026-05-07 (Thu, 07 May 2026)

  Changed paths:
    M llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
    A llvm/test/CodeGen/SystemZ/args-23.ll

  Log Message:
  -----------
  [SystemZ] Fix internal error with single-element vector types (#196127)

The special treatment of single-element 128-bit vector types in
SystemZTargetLowering::getRegisterTypeForCallingConv is not appropriate
if vector types are not supported, and can lead to internal compiler
errors.

Fixes: https://github.com/llvm/llvm-project/issues/194256
(cherry picked from commit 48346f2352eaf25373e1a6204c0c7f9fdce92a85)



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