File: ldst-opt-aa.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 (30 lines) | stat: -rw-r--r-- 978 bytes parent folder | download | duplicates (7)
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
# RUN: llc -mtriple=aarch64--linux-gnu -run-pass=aarch64-ldst-opt %s -verify-machineinstrs -o - | FileCheck %s
--- |
  define void @ldr_str_aa(i32* noalias nocapture %x, i32* noalias nocapture readonly %y) {
  entry:
    %0 = load i32, i32* %y, align 4
    store i32 %0, i32* %x, align 4
    %arrayidx2 = getelementptr inbounds i32, i32* %y, i32 1
    %1 = load i32, i32* %arrayidx2, align 4
    %arrayidx3 = getelementptr inbounds i32, i32* %x, i32 1
    store i32 %1, i32* %arrayidx3, align 4
    ret void
  }

...
---
# CHECK-LABEL: name: ldr_str_aa
# CHECK: $w8, $w9 = LDPWi $x1, 0
# CHECK: STPWi $w8, $w9, $x0, 0
name:            ldr_str_aa
tracksRegLiveness: true
body:             |
  bb.0.entry:
    liveins: $x0, $x1

    $w8 = LDRWui $x1, 0 :: (load 4 from %ir.y)
    STRWui killed $w8, $x0, 0 :: (store 4 into %ir.x)
    $w9 = LDRWui killed $x1, 1 :: (load 4 from %ir.arrayidx2)
    STRWui killed $w9, killed $x0, 1 :: (store 4 into %ir.arrayidx3)
    RET undef $lr