test/CodeGen/AArch64/GlobalISel/legalize-constant.mir

# RUN: llc -O0 -run-pass=legalizer -global-isel %s -o - | FileCheck %s

--- |
  target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
  target triple = "aarch64--"
  define void @test_constant() {
  entry:
    ret void
  }
  define void @test_fconstant() {
  entry:
    ret void
  }
  @var = global i8 0
  define i8* @test_global() { ret i8* undef }
...

---
name:            test_constant
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
  - { id: 3, class: _ }
  - { id: 4, class: _ }
  - { id: 5, class: _ }
body: |
  bb.0.entry:
    ; CHECK-LABEL: name: test_constant
    ; CHECK: [[TMP:%[0-9]+]](s32) = G_CONSTANT i32 0
    ; CHECK: %0(s1) = G_TRUNC [[TMP]]
    ; CHECK: [[TMP:%[0-9]+]](s32) = G_CONSTANT i32 42
    ; CHECK: %1(s8) = G_TRUNC [[TMP]]
    ; CHECK: [[TMP:%[0-9]+]](s32) = G_CONSTANT i32 -1
    ; CHECK: %2(s16) = G_TRUNC [[TMP]]
    ; CHECK: %3(s32) = G_CONSTANT i32 -1
    ; CHECK: %4(s64) = G_CONSTANT i64 1
    ; CHECK: %5(s64) = G_CONSTANT i64 0

    %0(s1) = G_CONSTANT i1 0
    %1(s8) = G_CONSTANT i8 42
    %2(s16) = G_CONSTANT i16 65535
    %3(s32) = G_CONSTANT i32 -1
    %4(s64) = G_CONSTANT i64 1
    %5(s64) = G_CONSTANT i64 0
...

---
name:            test_fconstant
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
body: |
  bb.0.entry:
    ; CHECK-LABEL: name: test_fconstant
    ; CHECK: %0(s32) = G_FCONSTANT  float 1.000000e+00
    ; CHECK: %1(s64) = G_FCONSTANT  double 2.000000e+00
    ; CHECK: [[TMP:%[0-9]+]](s32) = G_FCONSTANT half 0xH0000
    ; CHECK: %2(s16) = G_FPTRUNC [[TMP]]

    %0(s32) = G_FCONSTANT float 1.0
    %1(s64) = G_FCONSTANT double 2.0
    %2(s16) = G_FCONSTANT half 0.0
...

---
name:            test_global
registers:
  - { id: 0, class: _ }
body: |
  bb.0:
    ; CHECK-LABEL: name: test_global
    ; CHECK: %0(p0) = G_GLOBAL_VALUE @var

    %0(p0) = G_GLOBAL_VALUE @var
...