File: opt-max-ptr-states.ll

package info (click to toggle)
llvm-toolchain-13 1%3A13.0.1-11
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,418,840 kB
  • sloc: cpp: 5,290,826; ansic: 996,570; asm: 544,593; python: 188,212; objc: 72,027; lisp: 30,291; f90: 25,395; sh: 24,898; javascript: 9,780; pascal: 9,398; perl: 7,484; ml: 5,432; awk: 3,523; makefile: 2,913; xml: 953; cs: 573; fortran: 539
file content (26 lines) | stat: -rw-r--r-- 878 bytes parent folder | download | duplicates (11) 
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 -objc-arc -S < %s | FileCheck -check-prefix=ENABLE -check-prefix=CHECK %s
; RUN: opt -objc-arc -arc-opt-max-ptr-states=1 -S < %s | FileCheck -check-prefix=DISABLE -check-prefix=CHECK %s

@g0 = common global i8* null, align 8

; CHECK: call i8* @llvm.objc.retain
; ENABLE-NOT: call i8* @llvm.objc.retain
; DISABLE: call i8* @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(i8* %a) {
  %1 = tail call i8* @llvm.objc.retain(i8* %a)
  %2 = tail call i8* @llvm.objc.retain(i8* %a)
  %3 = load i8*, i8** @g0, align 8
  store i8* %a, i8** @g0, align 8
  tail call void @llvm.objc.release(i8* %3)
  tail call void @llvm.objc.release(i8* %a), !clang.imprecise_release !0
  ret void
}

declare i8* @llvm.objc.retain(i8*)
declare void @llvm.objc.release(i8*)

!0 = !{}