File: malloc-free-delete.ll

package info (click to toggle)
llvm-2.9 2.9%2Bdfsg-7
  • links: PTS, VCS
  • area: main
  • in suites: wheezy
  • size: 69,236 kB
  • sloc: cpp: 439,289; ansic: 16,211; asm: 13,295; sh: 12,912; python: 4,459; ml: 4,274; perl: 2,093; makefile: 1,808; pascal: 1,481; exp: 427; objc: 334; xml: 283; ada: 235; lisp: 187; csh: 117; f90: 36
file content (25 lines) | stat: -rw-r--r-- 555 bytes parent folder | download
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
; RUN: opt < %s -instcombine -S | FileCheck %s
; PR1201
define i32 @main(i32 %argc, i8** %argv) {
        %c_19 = alloca i8*
        %malloc_206 = malloc i8, i32 10
; CHECK-NOT: malloc
        store i8* %malloc_206, i8** %c_19
        %tmp_207 = load i8** %c_19
        free i8* %tmp_207
; CHECK-NOT: free
        ret i32 0
; CHECK: ret i32 0
}

declare i8* @malloc(i32)
declare void @free(i8*)

define i1 @foo() {
; CHECK: @foo
; CHECK-NEXT: ret i1 false
  %m = call i8* @malloc(i32 1)
  %z = icmp eq i8* %m, null
  call void @free(i8* %m)
  ret i1 %z
}