# RUN: llc -march=hexagon -run-pass hexagon-split-double %s -o - | FileCheck %s

# This used to crash because the constant operand was not an immediate.
# Make sure we can handle such a case.

# CHECK: = A2_tfrsi 0
# CHECK: = A2_tfrsi @g0

--- |
  define i32 @fred() {
    ret i32 0
  }

  @g0 = global i32 zeroinitializer
...

name: fred
tracksRegLiveness: true
body: |
  bb.0:
    %0:doubleregs = A4_combineir 0, @g0
    $r0 = COPY %0.isub_lo
    PS_jmpret $r31, implicit-def $pc, implicit $r0
...