test/CodeGen/AVR/pseudo/ZEXT.mir

# RUN: llc -O0 -run-pass=avr-expand-pseudo %s -o - 2>&1 | FileCheck %s

--- |
  target triple = "avr--"
  define void @test() {
  entry:
    ret void
  }
...

---
name:            test
body: |
  bb.0.entry:

    ; CHECK-LABEL: test

    ; CHECK:      %r14 = MOVRdRr %r31
    ; CHECK-NEXT: %r15 = MOVRdRr %r31
    ; CHECK-NEXT: %r15 = LSLRd killed %r15, implicit-def %sreg
    ; CHECK-NEXT: %r15 = SBCRdRr killed %r15, killed %r15, implicit-def %sreg, implicit killed %sreg

    %r15r14 = SEXT %r31, implicit-def %sreg
...