third_party/llvm-7.0/llvm/test/CodeGen/Hexagon/cext-opt-stack-no-rr.mir

# RUN: llc -march=hexagon -run-pass hexagon-cext-opt -hexagon-cext-threshold=1 -o - %s | FileCheck %s

# Make sure that the stores to the stack slot are not converted into rr forms.
# CHECK: %[[REG:[0-9]+]]:intregs = PS_fi %stack.0, 267
# CHECK: S2_pstorerbt_io %{{[0-9]+}}, %[[REG]], 0
# CHECK: S2_pstorerbt_io %{{[0-9]+}}, %[[REG]], 0

---
name: fred
stack:
  - { id: 0, type: default, size: 272, alignment: 4 }
body: |
  bb.0:
    successors: %bb.1, %bb.2

    %0:intregs = IMPLICIT_DEF
    %1:intregs = L2_loadrub_io killed %0:intregs, 0 :: (load 1 from `i8* undef`, align 2)
    %2:predregs = C2_cmpeqi %1:intregs, 5
    %3:intregs = A2_tfrsi 0
    S2_pstorerbt_io %2:predregs, %stack.0, 267, killed %3:intregs :: (store 1 into %stack.0)
    J2_jumpt %2:predregs, %bb.2, implicit-def $pc

  bb.1:
    successors: %bb.2

    %4:predregs = C2_cmpeqi %1:intregs, 6
    %5:intregs = A2_tfrsi 2
    S2_pstorerbt_io %4:predregs, %stack.0, 267, killed %5:intregs :: (store 1 into %stack.0)

  bb.2:
    %6:intregs = A2_tfrsi 32968
    S2_storerh_io %stack.0, 0, killed %6:intregs :: (store 2 into %stack.0, align 4)
    PS_jmpret $r31, implicit-def dead $pc
...