third_party/llvm-7.0/llvm/test/CodeGen/Hexagon/cext-opt-basic.mir

# RUN: llc -march=hexagon -run-pass hexagon-cext-opt -hexagon-cext-threshold=3 %s -o - | FileCheck %s

--- |
  define void @test0() { ret void }
  define void @test1() { ret void }
  define void @test2() { ret void }
  @global_address = global [1024 x i32] zeroinitializer, align 8
...

# CHECK-LABEL: name: test0
# CHECK: [[B:%[0-9]+]]:intregs = A2_tfrsi @global_address
# CHECK: L2_loadri_io [[B]], 0
# CHECK: L2_loadri_io [[B]], 4
# CHECK: L2_loadri_io [[B]], 8
---
name: test0
registers:
  - { id: 0, class: intregs }
  - { id: 1, class: intregs }
  - { id: 2, class: intregs }
body: |
  bb.0:
    %0 = PS_loadriabs @global_address
    %1 = PS_loadriabs @global_address+4
    %2 = PS_loadriabs @global_address+8
...

# CHECK-LABEL: name: test1
# CHECK: [[C:%[0-9]+]]:intregs = COPY $r0
# CHECK: [[B:%[0-9]+]]:intregs = A2_addi [[C]], @global_address
# CHECK: L2_loadri_io [[B]], 0
# CHECK: L2_loadri_io [[B]], 4
# CHECK: L2_loadri_io [[B]], 8
---
name: test1
registers:
  - { id: 0, class: intregs }
  - { id: 1, class: intregs }
  - { id: 2, class: intregs }
  - { id: 3, class: intregs }
body: |
  bb.0:
    liveins: $r0
    %0 = COPY $r0
    %1 = L4_loadri_ur %0, 0, @global_address
    %2 = L4_loadri_ur %0, 0, @global_address+4
    %3 = L4_loadri_ur %0, 0, @global_address+8
...

# CHECK-LABEL: name: test2
# CHECK: [[C:%[0-9]+]]:intregs = COPY $r0
# CHECK: [[B:%[0-9]+]]:intregs = A2_tfrsi @global_address + 4
# CHECK: [[T0:%[0-9]+]]:intregs = A2_addi [[B]], -4
# CHECK: $r0 = COPY [[T0]]
# CHECK: [[T1:%[0-9]+]]:intregs = A2_addi [[B]], -2
# CHECK: $r1 = COPY [[T1]]
# CHECK: L4_loadri_rr [[B]], [[C]], 0
---
name: test2
registers:
  - { id: 0, class: intregs }
  - { id: 1, class: intregs }
  - { id: 2, class: intregs }
  - { id: 3, class: intregs }
body: |
  bb.0:
    liveins: $r0
    %0 = COPY $r0
    %1 = A2_tfrsi @global_address
    $r0 = COPY %1
    %2 = A2_tfrsi @global_address+2
    $r1 = COPY %2
    %3 = L4_loadri_ur %0, 0, @global_address+4
...