src/third_party/llvm-project/llvm/test/CodeGen/AArch64/jump-table.ll

; RUN: llc -verify-machineinstrs -o - %s -mtriple=aarch64-none-linux-gnu -aarch64-enable-atomic-cfg-tidy=0 | FileCheck %s
; RUN: llc -code-model=large -verify-machineinstrs -o - %s -mtriple=aarch64-none-linux-gnu -aarch64-enable-atomic-cfg-tidy=0 | FileCheck --check-prefix=CHECK-LARGE %s
; RUN: llc -mtriple=aarch64-none-linux-gnu -verify-machineinstrs -relocation-model=pic -aarch64-enable-atomic-cfg-tidy=0 -o - %s | FileCheck --check-prefix=CHECK-PIC %s

define i32 @test_jumptable(i32 %in) {
; CHECK: test_jumptable

  switch i32 %in, label %def [
    i32 0, label %lbl1
    i32 1, label %lbl2
    i32 2, label %lbl3
    i32 4, label %lbl4
  ]
; CHECK: adrp [[JTPAGE:x[0-9]+]], .LJTI0_0
; CHECK: add x[[JT:[0-9]+]], [[JTPAGE]], {{#?}}:lo12:.LJTI0_0
; CHECK: ldr [[DEST:x[0-9]+]], [x[[JT]], {{x[0-9]+}}, lsl #3]
; CHECK: br [[DEST]]

; CHECK-LARGE: movz x[[JTADDR:[0-9]+]], #:abs_g0_nc:.LJTI0_0
; CHECK-LARGE: movk x[[JTADDR]], #:abs_g1_nc:.LJTI0_0
; CHECK-LARGE: movk x[[JTADDR]], #:abs_g2_nc:.LJTI0_0
; CHECK-LARGE: movk x[[JTADDR]], #:abs_g3:.LJTI0_0
; CHECK-LARGE: ldr [[DEST:x[0-9]+]], [x[[JTADDR]], {{x[0-9]+}}, lsl #3]
; CHECK-LARGE: br [[DEST]]

; CHECK-PIC: adrp [[JTPAGE:x[0-9]+]], .LJTI0_0
; CHECK-PIC: add x[[JT:[0-9]+]], [[JTPAGE]], {{#?}}:lo12:.LJTI0_0
; CHECK-PIC: ldrsw [[DEST:x[0-9]+]], [x[[JT]], {{x[0-9]+}}, lsl #2]
; CHECK-PIC: add [[TABLE:x[0-9]+]], [[DEST]], x[[JT]]
; CHECK-PIC: br [[TABLE]]

def:
  ret i32 0

lbl1:
  ret i32 1

lbl2:
  ret i32 2

lbl3:
  ret i32 4

lbl4:
  ret i32 8

}

; CHECK: .rodata

; CHECK: .LJTI0_0:
; CHECK-NEXT: .xword
; CHECK-NEXT: .xword
; CHECK-NEXT: .xword
; CHECK-NEXT: .xword
; CHECK-NEXT: .xword

; CHECK-PIC-NOT: .data_region
; CHECK-PIC-NOT: .LJTI0_0
; CHECK-PIC: .LJTI0_0:
; CHECK-PIC-NEXT: .word .LBB{{.*}}-.LJTI0_0
; CHECK-PIC-NEXT: .word .LBB{{.*}}-.LJTI0_0
; CHECK-PIC-NEXT: .word .LBB{{.*}}-.LJTI0_0
; CHECK-PIC-NEXT: .word .LBB{{.*}}-.LJTI0_0
; CHECK-PIC-NEXT: .word .LBB{{.*}}-.LJTI0_0
; CHECK-PIC-NOT: .end_data_region