File: opt-max-ptr-states.ll

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 (26 lines) | stat: -rw-r--r-- 890 bytes parent folder | download | duplicates (16) 
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
 
; RUN: opt -passes=objc-arc -S < %s | FileCheck -check-prefix=ENABLE -check-prefix=CHECK %s
; RUN: opt -passes=objc-arc -arc-opt-max-ptr-states=1 -S < %s | FileCheck -check-prefix=DISABLE -check-prefix=CHECK %s

@g0 = common global ptr null, align 8

; CHECK: call ptr @llvm.objc.retain
; ENABLE-NOT: call ptr @llvm.objc.retain
; DISABLE: call ptr @llvm.objc.retain
; CHECK: call void @llvm.objc.release
; ENABLE-NOT: call void @llvm.objc.release
; DISABLE: call void @llvm.objc.release

define void @foo0(ptr %a) {
  %1 = tail call ptr @llvm.objc.retain(ptr %a)
  %2 = tail call ptr @llvm.objc.retain(ptr %a)
  %3 = load ptr, ptr @g0, align 8
  store ptr %a, ptr @g0, align 8
  tail call void @llvm.objc.release(ptr %3)
  tail call void @llvm.objc.release(ptr %a), !clang.imprecise_release !0
  ret void
}

declare ptr @llvm.objc.retain(ptr)
declare void @llvm.objc.release(ptr)

!0 = !{}