blob: 2074d262ccbd6fe47c362083b7c7deee66812b68 (
plain)
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
34
35
36
37
38
39
40
41
|
; RUN: opt < %s -instcombine -S | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
target triple = "x86_64-apple-darwin10.0"
declare noalias i8* @malloc(i64) nounwind
declare void @free(i8*)
; PR5130
define i1 @test1() {
%A = call noalias i8* @malloc(i64 4) nounwind
%B = icmp eq i8* %A, null
store i8 0, i8* %A
call void @free(i8* %A)
ret i1 %B
; CHECK-LABEL: @test1(
; CHECK: ret i1 false
}
; CHECK-LABEL: @test2(
define noalias i8* @test2() nounwind {
entry:
; CHECK: @malloc
%A = call noalias i8* @malloc(i64 4) nounwind
; CHECK: icmp eq
%tobool = icmp eq i8* %A, null
; CHECK: br i1
br i1 %tobool, label %return, label %if.end
if.end:
; CHECK: store
store i8 7, i8* %A
br label %return
return:
; CHECK: phi
%retval.0 = phi i8* [ %A, %if.end ], [ null, %entry ]
ret i8* %retval.0
}
|
