File: swp.mir

package info (click to toggle)
swiftlang 6.1.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,791,604 kB
  • sloc: cpp: 9,901,740; ansic: 2,201,431; asm: 1,091,827; python: 308,252; objc: 82,166; f90: 80,126; lisp: 38,358; pascal: 25,559; sh: 20,429; ml: 5,058; perl: 4,745; makefile: 4,484; awk: 3,535; javascript: 3,018; xml: 918; fortran: 664; cs: 573; ruby: 396
file content (33 lines) | stat: -rw-r--r-- 844 bytes parent folder | download | duplicates (10) 
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
 
# RUN: llc -mtriple=aarch64-none-linux-gnu -run-pass none -o - %s | FileCheck %s

--- |
  define i32 @swp(ptr %addr) #0 {
  entry:
    %0 = atomicrmw xchg ptr %addr, i32 1 monotonic
    ret i32 %0
  }

  attributes #0 = { "target-features"="+lse" }
...
---
name:            swp
alignment:       4
tracksRegLiveness: true
registers:
  - { id: 0, class: gpr64common }
  - { id: 1, class: gpr32 }
  - { id: 2, class: gpr32 }
liveins:
  - { reg: '$x0', virtual-reg: '%0' }
body:             |
  bb.0.entry:
    liveins: $x0

    ; CHECK-LABEL: swp
    ; CHECK: {{[0-9]+}}:gpr32 = SWPW killed %1, %0 :: (volatile load store monotonic (s32) on %ir.addr)
    %0:gpr64common = COPY $x0
    %1:gpr32 = MOVi32imm 1
    %2:gpr32 = SWPW killed %1, %0 :: (volatile load store monotonic (s32) on %ir.addr)
    $w0 = COPY %2
    RET_ReallyLR implicit $w0
...