test/CodeGen/Hexagon/anti-dep-partial.mir

# RUN: llc -march=hexagon -post-RA-scheduler -run-pass post-RA-sched %s -o - | FileCheck %s

--- |
  declare void @check(i64, i32, i32, i64)
  define void @foo() {
    ret void
  }
...

---
name: foo
tracksRegLiveness: true
body: |
  bb.0:
    successors:
    liveins: %r0, %r1, %d1, %d2, %r16, %r17, %r19, %r22, %r23
        %r2 = A2_add %r23, killed %r17
        %r6 = M2_mpyi %r16, %r16
        %r22 = M2_accii %r22, killed %r2, 2
        %r7 = A2_tfrsi 12345678
        %r3 = A2_tfr killed %r16
        %d2 = A2_tfrp killed %d0
        %r2 = L2_loadri_io %r29, 28
        %r2 = M2_mpyi killed %r6, killed %r2
        %r23 = S2_asr_i_r %r22, 31
        S2_storeri_io killed %r29, 0, killed %r7
        ; The anti-dependency on r23 between the first A2_add and the
        ; S2_asr_i_r was causing d11 to be renamed, while r22 remained
        ; unchanged. Check that the renaming of d11 does not happen.
        ; CHECK: d11
        %d0 = A2_tfrp killed %d11
        J2_call @check, implicit-def %d0, implicit-def %d1, implicit-def %d2, implicit %d0, implicit %d1, implicit %d2
...