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

# RUN: llc -O0 -run-pass=legalize-mir -global-isel %s -o - 2>&1 | FileCheck %s

--- |
  target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
  target triple = "aarch64-apple-ios"
  define void @test_constant() {
  entry:
    ret void
  }
  define void @test_fconstant() {
  entry:
    ret void
  }
...

---
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]+]](32) = G_CONSTANT s32 0
    ; CHECK: %0(1) = G_TRUNC { s1, s32 } [[TMP]]
    ; CHECK: [[TMP:%[0-9]+]](32) = G_CONSTANT s32 42
    ; CHECK: %1(8) = G_TRUNC { s8, s32 } [[TMP]]
    ; CHECK: [[TMP:%[0-9]+]](32) = G_CONSTANT s32 65535
    ; CHECK: %2(16) = G_TRUNC { s16, s32 } [[TMP]]
    ; CHECK: %3(32) = G_CONSTANT s32 -1
    ; CHECK: %4(64) = G_CONSTANT s64 1
    ; CHECK: %5(64) = G_CONSTANT p0 0

    %0(1) = G_CONSTANT s1 0
    %1(8) = G_CONSTANT s8 42
    %2(16) = G_CONSTANT s16 65535
    %3(32) = G_CONSTANT s32 -1
    %4(64) = G_CONSTANT s64 1
    %5(64) = G_CONSTANT p0 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(32) = G_FCONSTANT s32  float 1.000000e+00
    ; CHECK: %1(64) = G_FCONSTANT s64  double 2.000000e+00
    ; CHECK: [[TMP:%[0-9]+]](32) = G_FCONSTANT s32 half 0xH0000
    ; CHECK; %2(16) = G_FPTRUNC { s16, s32 } [[TMP]]

    %0(32) = G_FCONSTANT s32 float 1.0
    %1(64) = G_FCONSTANT s64 double 2.0
    %2(16) = G_FCONSTANT s16 half 0.0
...