test/CodeGen/Hexagon/post-ra-kill-update.mir

# RUN: llc -march=hexagon -mcpu=hexagonv60 -run-pass post-RA-sched -o - %s | FileCheck %s

# The post-RA scheduler reorders S2_lsr_r_p and S2_lsr_r_p_or. Both of them
# use r9, and the last of the two kills it. The kill flag fixup did not
# correctly update the flag, resulting in both instructions killing r9.

# CHECK-LABEL: name: foo
# Check for no-kill of r9 in the first instruction, after reordering:
# CHECK: %d7 = S2_lsr_r_p_or killed %d7, killed %d1, %r9
# CHECK: %d13 = S2_lsr_r_p killed %d0, killed %r9

--- |
  define void @foo() {
    ret void
  }
...

---
name: foo
tracksRegLiveness: true
body: |
  bb.0:
    successors: %bb.1
    liveins: %d0, %d1, %r9, %r13

    %d7 = S2_asl_r_p %d0, %r13
    %d5 = S2_asl_r_p %d1, killed %r13
    %d6 = S2_lsr_r_p killed %d0, %r9
    %d7 = S2_lsr_r_p_or killed %d7, killed %d1, killed %r9
    %d1 = A2_combinew killed %r11, killed %r10
    %d0 = A2_combinew killed %r15, killed %r14
    J2_jump %bb.1, implicit-def %pc

  bb.1:
    A2_nop
...