test/CodeGen/X86/GlobalISel/legalize-trunc.mir

# RUN: llc -mtriple=i386-linux-gnu   -global-isel -run-pass=legalizer %s -o - | FileCheck %s --check-prefix=ALL --check-prefix=X32
# RUN: llc -mtriple=x86_64-linux-gnu -global-isel -run-pass=legalizer %s -o - | FileCheck %s --check-prefix=ALL --check-prefix=X64
--- |
  define void @trunc_check() {
    ret void
  }

...
---
name:            trunc_check
# ALL-LABEL: name:            trunc_check
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
  - { id: 3, class: _ }
body:             |
  bb.1 (%ir-block.0):
    %0(s32) = IMPLICIT_DEF
    ; ALL: %1(s1)  = G_TRUNC %0(s32)
    %1(s1)  = G_TRUNC %0(s32)

    ; ALL: %2(s8)  = G_TRUNC %0(s32)
    %2(s8)  = G_TRUNC %0(s32)

    ; ALL: %3(s16) = G_TRUNC %0(s32)
    %3(s16) = G_TRUNC %0(s32)
    RET 0

...