File: select-blockaddress.mir

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 995,808 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (62 lines) | stat: -rw-r--r-- 3,150 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
# 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
--- |
  ; ModuleID = 'blockaddress.ll'
  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 = global i8* null

  define void @test_blockaddress() {
    store i8* blockaddress(@test_blockaddress, %block), i8** @addr
    indirectbr i8* 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:   [[MOVaddrBA:%[0-9]+]]:gpr64 = MOVaddrBA target-flags(aarch64-page) blockaddress(@test_blockaddress, %ir-block.block), target-flags(aarch64-pageoff, aarch64-nc) blockaddress(@test_blockaddress, %ir-block.block)
  ; CHECK:   [[MOVaddr:%[0-9]+]]:gpr64common = MOVaddr target-flags(aarch64-page) @addr, target-flags(aarch64-pageoff, aarch64-nc) @addr
  ; CHECK:   STRXui [[MOVaddrBA]], [[MOVaddr]], 0 :: (store 8 into @addr)
  ; CHECK:   BR [[MOVaddrBA]]
  ; CHECK: bb.1.block (address-taken):
  ; CHECK:   RET_ReallyLR
  ; LARGE-LABEL: name: test_blockaddress
  ; LARGE: bb.0 (%ir-block.0):
  ; LARGE:   [[MOVZXi:%[0-9]+]]:gpr64 = MOVZXi target-flags(aarch64-g0, aarch64-nc) blockaddress(@test_blockaddress, %ir-block.block), 0
  ; LARGE:   [[MOVKXi:%[0-9]+]]:gpr64 = MOVKXi [[MOVZXi]], target-flags(aarch64-g1, aarch64-nc) blockaddress(@test_blockaddress, %ir-block.block), 16
  ; LARGE:   [[MOVKXi1:%[0-9]+]]:gpr64 = MOVKXi [[MOVKXi]], target-flags(aarch64-g2, aarch64-nc) blockaddress(@test_blockaddress, %ir-block.block), 32
  ; LARGE:   [[MOVKXi2:%[0-9]+]]:gpr64 = MOVKXi [[MOVKXi1]], target-flags(aarch64-g3) blockaddress(@test_blockaddress, %ir-block.block), 48
  ; LARGE:   [[MOVZXi1:%[0-9]+]]:gpr64 = MOVZXi target-flags(aarch64-g0, aarch64-nc) @addr, 0
  ; LARGE:   [[MOVKXi3:%[0-9]+]]:gpr64 = MOVKXi [[MOVZXi1]], target-flags(aarch64-g1, aarch64-nc) @addr, 16
  ; LARGE:   [[MOVKXi4:%[0-9]+]]:gpr64 = MOVKXi [[MOVKXi3]], target-flags(aarch64-g2, aarch64-nc) @addr, 32
  ; LARGE:   [[MOVKXi5:%[0-9]+]]:gpr64common = MOVKXi [[MOVKXi4]], target-flags(aarch64-g3) @addr, 48
  ; LARGE:   STRXui [[MOVKXi2]], [[MOVKXi5]], 0 :: (store 8 into @addr)
  ; LARGE:   BR [[MOVKXi2]]
  ; LARGE: bb.1.block (address-taken):
  ; LARGE:   RET_ReallyLR
  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 8 into @addr)
    G_BRINDIRECT %0(p0)

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

...