blob: 3c980ccac6b443d8806a3a0064a21f3103a152f6 (
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
|
; RUN: opt < %s -basicaa -dse -S | FileCheck %s
target datalayout = "e-p:64:64:64"
; CHECK: @test
; CHECK-NEXT: bitcast
; CHECK-NEXT: @free
; CHECK-NEXT: ret void
define void @test(i32* %Q, i32* %P) {
%DEAD = load i32* %Q ; <i32> [#uses=1]
store i32 %DEAD, i32* %P
free i32* %P
ret void
}
; CHECK: @test2
; CHECK-NEXT: bitcast
; CHECK-NEXT: @free
; CHECK-NEXT: ret void
define void @test2({i32, i32}* %P) {
%Q = getelementptr {i32, i32} *%P, i32 0, i32 1
store i32 4, i32* %Q
free {i32,i32}* %P
ret void
}
; CHECK: @test4
; CHECK-NOT: store
; CHECK: ret void
define void @test4() {
%m = call i8* @malloc(i64 24)
store i8 0, i8* %m
%m1 = getelementptr i8* %m, i64 1
store i8 1, i8* %m1
call void @free(i8* %m)
ret void
}
declare void @free(i8*)
declare i8* @malloc(i64)
|