test/CodeGen/AArch64/GlobalISel/select-trunc.mir

# RUN: llc -mtriple=aarch64-- -run-pass=instruction-select -verify-machineinstrs -global-isel %s -o - | FileCheck %s

--- |
  target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"

  define void @trunc_s32_s64() { ret void }
  define void @trunc_s8_s64() { ret void }
  define void @trunc_s1_s32() { ret void }
...

---
# CHECK-LABEL: name: trunc_s32_s64
name:            trunc_s32_s64
legalized:       true
regBankSelected: true

# CHECK:      registers:
# CHECK-NEXT:  - { id: 0, class: gpr64sp, preferred-register: '' }
# CHECK-NEXT:  - { id: 1, class: gpr32sp, preferred-register: '' }
registers:
  - { id: 0, class: gpr }
  - { id: 1, class: gpr }

# CHECK:  body:
# CHECK:    %1 = COPY %0.sub_32
body:             |
  bb.0:
    liveins: %x0

    %0(s64) = COPY %x0
    %1(s32) = G_TRUNC %0
    %w0 = COPY %1(s32)
...

---
# CHECK-LABEL: name: trunc_s8_s64
name:            trunc_s8_s64
legalized:       true
regBankSelected: true

# CHECK:      registers:
# CHECK-NEXT:  - { id: 0, class: gpr64, preferred-register: '' }
# CHECK-NEXT:  - { id: 1, class: gpr32, preferred-register: '' }
registers:
  - { id: 0, class: gpr }
  - { id: 1, class: gpr }

# CHECK:  body:
# CHECK:    %1 = COPY %0.sub_32
body:             |
  bb.0:
    liveins: %x0

    %0(s64) = COPY %x0
    %1(s8) = G_TRUNC %0
    %w0 = COPY %1(s8)
...

---
# CHECK-LABEL: name: trunc_s1_s32
name:            trunc_s1_s32
legalized:       true
regBankSelected: true

# CHECK:      registers:
# CHECK-NEXT:  - { id: 0, class: gpr32, preferred-register: '' }
# CHECK-NEXT:  - { id: 1, class: gpr32, preferred-register: '' }
registers:
  - { id: 0, class: gpr }
  - { id: 1, class: gpr }

# CHECK:  body:
# CHECK:    %1 = COPY %0
body:             |
  bb.0:
    liveins: %w0

    %0(s32) = COPY %w0
    %1(s1) = G_TRUNC %0
    %w0 = COPY %1(s1)
...