# RUN: not --crash llc %s -mtriple=riscv64 \
# RUN: -run-pass=cfi-instr-inserter \
# RUN: -riscv-enable-cfi-instr-inserter=true \
# RUN: -o /dev/null 2>&1 | FileCheck %s

# CHECK: LLVM ERROR: Different saved locations for the same CSR

# Technically, it is possible that a callee-saved register is saved in multiple different locations.
# CFIInstrInserter should handle this, but currently it does not.
---
name: multiple_locations
tracksRegLiveness: true
body:             |
  bb.0.entry:
    liveins: $x10, $x9, $x2
    BEQ $x10, $x0, %bb.2

  bb.1:
    liveins: $x10, $x9, $x2
    $x5 = COPY $x9
    CFI_INSTRUCTION register $x9, $x5
    $x9 = COPY $x5
    CFI_INSTRUCTION register $x9, $x9
    PseudoBR %bb.3

  bb.2:
    liveins: $x10, $x9, $x2
    SD $x9, $x2, 0 :: (store (s64))
    CFI_INSTRUCTION offset $x9, 0
    $x9  = LD $x2, 0 :: (load (s64))
    CFI_INSTRUCTION register $x9, $x9
    PseudoBR %bb.3

  bb.3:
    PseudoRET
...