File: deref-abstract-gc.ll

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (23 lines) | stat: -rw-r--r-- 788 bytes parent folder | download | duplicates (8) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
 
; RUN: opt -passes=print-memderefs -S < %s -disable-output  -use-dereferenceable-at-point-semantics=1 2>&1 | FileCheck %s --check-prefixes=CHECK

target datalayout = "e-i32:32:64"

; For the abstract machine model (before RS4GC), gc managed objects
; conceptually live forever.  But there may be non-managed objects which are
; freed.
; CHECK-LABEL: 'abstract_model'
; CHECK: %gc_ptr
; CHECK-NOT: %other_ptr
; FIXME: Can infer the gc pointer case
define void @abstract_model(ptr addrspace(1) dereferenceable(8) %gc_ptr,
                            ptr dereferenceable(8) %other_ptr)
    gc "statepoint-example" {
entry:
  call void @mayfree()
  load i32, ptr addrspace(1) %gc_ptr
  load i32, ptr %other_ptr
  ret void
}

; Can free any object accessible in memory
declare void @mayfree()