test/CodeGen/X86/bug47278-eflags-error.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=i386-unknown-linux-musl -verify-machineinstrs -run-pass=regallocfast -o - %s | FileCheck %s

# Test for correct management of allocatable and non-allocatable
# live-ins in fastregalloc

---
name: live_through_ecx
tracksRegLiveness: true
body:             |
  ; CHECK-LABEL: name: live_through_ecx
  ; CHECK: bb.0:
  ; CHECK:   successors: %bb.1(0x80000000)
  ; CHECK:   liveins: $ecx
  ; CHECK:   NOOP implicit $ecx
  ; CHECK: bb.1:
  ; CHECK:   liveins: $ecx
  ; CHECK:   RET implicit killed $ecx
  bb.0:
    liveins: $ecx
    NOOP implicit $ecx

  bb.1:
    liveins: $ecx

    RET implicit $ecx

...

---
name: live_out_ecx
tracksRegLiveness: true
body:             |
  ; CHECK-LABEL: name: live_out_ecx
  ; CHECK: bb.0:
  ; CHECK:   successors: %bb.1(0x80000000)
  ; CHECK:   liveins: $eax, $ebx
  ; CHECK:   renamable $ecx = COPY killed $ebx
  ; CHECK: bb.1:
  ; CHECK:   liveins: $ecx
  ; CHECK:   RET implicit killed $ecx
  bb.0:
    liveins: $eax, $ebx
    %0:gr32 = COPY $eax
    %1:gr32 = COPY $ebx
    $ecx = COPY %1

  bb.1:
    liveins: $ecx

    RET implicit $ecx

...

---
name: live_out_eflags
tracksRegLiveness: true
body:             |
  ; CHECK-LABEL: name: live_out_eflags
  ; CHECK: bb.0:
  ; CHECK:   successors: %bb.1(0x80000000)
  ; CHECK:   liveins: $eax, $ebx
  ; CHECK:   TEST32rr killed renamable $eax, killed renamable $ebx, implicit-def $eflags
  ; CHECK: bb.1:
  ; CHECK:   liveins: $eflags
  ; CHECK:   RET implicit killed $eflags
  bb.0:
    liveins: $eax, $ebx
    %0:gr32 = COPY $eax
    %1:gr32 = COPY $ebx
    TEST32rr %0, %1, implicit-def $eflags

  bb.1:
    liveins: $eflags

    RET implicit $eflags

...