File: select-blockaddress.mir

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llvm-toolchain-19 1%3A19.1.7-3
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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=aarch64-unknown-unknown -o - -verify-machineinstrs -run-pass=instruction-select %s | FileCheck %s
# RUN: llc -mtriple=aarch64-unknown-unknown -o - -verify-machineinstrs -run-pass=instruction-select -code-model=large %s | FileCheck %s --check-prefix=LARGE
# RUN: llc -mtriple=aarch64-unknown-unknown -o - -verify-machineinstrs -run-pass=instruction-select -code-model=large -relocation-model=pic %s | FileCheck %s --check-prefix=LARGE-PIC
--- |
  source_filename = "blockaddress.ll"
  target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
  target triple = "aarch64-none-linux-gnu"

  @addr = dso_local global ptr null

  define dso_local void @test_blockaddress() {
    store ptr blockaddress(@test_blockaddress, %block), ptr @addr
    indirectbr ptr blockaddress(@test_blockaddress, %block), [label %block]

  block:                                            ; preds = %0
    ret void
  }

...
---
name:            test_blockaddress
alignment:       4
legalized:       true
regBankSelected: true
tracksRegLiveness: true
registers:
  - { id: 0, class: gpr }
  - { id: 1, class: gpr }
body:             |
  ; CHECK-LABEL: name: test_blockaddress
  ; CHECK: bb.0 (%ir-block.0):
  ; CHECK-NEXT:   [[MOVaddrBA:%[0-9]+]]:gpr64common = MOVaddrBA target-flags(aarch64-page) blockaddress(@test_blockaddress, %ir-block.block), target-flags(aarch64-pageoff, aarch64-nc) blockaddress(@test_blockaddress, %ir-block.block)
  ; CHECK-NEXT:   [[MOVaddr:%[0-9]+]]:gpr64common = MOVaddr target-flags(aarch64-page) @addr, target-flags(aarch64-pageoff, aarch64-nc) @addr
  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:gpr64 = COPY [[MOVaddrBA]]
  ; CHECK-NEXT:   STRXui [[COPY]], [[MOVaddr]], 0 :: (store (p0) into @addr)
  ; CHECK-NEXT:   BR [[MOVaddrBA]]
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.1.block (ir-block-address-taken %ir-block.block):
  ;
  ; LARGE-LABEL: name: test_blockaddress
  ; LARGE: bb.0 (%ir-block.0):
  ; LARGE-NEXT:   [[MOVZXi:%[0-9]+]]:gpr64 = MOVZXi target-flags(aarch64-g0, aarch64-nc) blockaddress(@test_blockaddress, %ir-block.block), 0
  ; LARGE-NEXT:   [[MOVKXi:%[0-9]+]]:gpr64 = MOVKXi [[MOVZXi]], target-flags(aarch64-g1, aarch64-nc) blockaddress(@test_blockaddress, %ir-block.block), 16
  ; LARGE-NEXT:   [[MOVKXi1:%[0-9]+]]:gpr64 = MOVKXi [[MOVKXi]], target-flags(aarch64-g2, aarch64-nc) blockaddress(@test_blockaddress, %ir-block.block), 32
  ; LARGE-NEXT:   [[MOVKXi2:%[0-9]+]]:gpr64 = MOVKXi [[MOVKXi1]], target-flags(aarch64-g3) blockaddress(@test_blockaddress, %ir-block.block), 48
  ; LARGE-NEXT:   [[MOVZXi1:%[0-9]+]]:gpr64 = MOVZXi target-flags(aarch64-g0, aarch64-nc) @addr, 0
  ; LARGE-NEXT:   [[MOVKXi3:%[0-9]+]]:gpr64 = MOVKXi [[MOVZXi1]], target-flags(aarch64-g1, aarch64-nc) @addr, 16
  ; LARGE-NEXT:   [[MOVKXi4:%[0-9]+]]:gpr64 = MOVKXi [[MOVKXi3]], target-flags(aarch64-g2, aarch64-nc) @addr, 32
  ; LARGE-NEXT:   [[MOVKXi5:%[0-9]+]]:gpr64common = MOVKXi [[MOVKXi4]], target-flags(aarch64-g3) @addr, 48
  ; LARGE-NEXT:   STRXui [[MOVKXi2]], [[MOVKXi5]], 0 :: (store (p0) into @addr)
  ; LARGE-NEXT:   BR [[MOVKXi2]]
  ; LARGE-NEXT: {{  $}}
  ; LARGE-NEXT: bb.1.block (ir-block-address-taken %ir-block.block):
  ;
  ; LARGE-PIC-LABEL: name: test_blockaddress
  ; LARGE-PIC: bb.0 (%ir-block.0):
  ; LARGE-PIC-NEXT:   [[MOVaddrBA:%[0-9]+]]:gpr64common = MOVaddrBA target-flags(aarch64-page) blockaddress(@test_blockaddress, %ir-block.block), target-flags(aarch64-pageoff, aarch64-nc) blockaddress(@test_blockaddress, %ir-block.block)
  ; LARGE-PIC-NEXT:   [[MOVaddr:%[0-9]+]]:gpr64common = MOVaddr target-flags(aarch64-page) @addr, target-flags(aarch64-pageoff, aarch64-nc) @addr
  ; LARGE-PIC-NEXT:   [[COPY:%[0-9]+]]:gpr64 = COPY [[MOVaddrBA]]
  ; LARGE-PIC-NEXT:   STRXui [[COPY]], [[MOVaddr]], 0 :: (store (p0) into @addr)
  ; LARGE-PIC-NEXT:   BR [[MOVaddrBA]]
  ; LARGE-PIC-NEXT: {{  $}}
  ; LARGE-PIC-NEXT: bb.1.block (ir-block-address-taken %ir-block.block):
  bb.1 (%ir-block.0):
    %0:gpr(p0) = G_BLOCK_ADDR blockaddress(@test_blockaddress, %ir-block.block)
    %1:gpr(p0) = G_GLOBAL_VALUE @addr
    G_STORE %0(p0), %1(p0) :: (store (p0) into @addr)
    G_BRINDIRECT %0(p0)

  bb.2.block (ir-block-address-taken %ir-block.block):
    RET_ReallyLR

...