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
42
43
44
45
46
|
; RUN: opt -S -basicaa -dse < %s | FileCheck %s
declare i8* @strcpy(i8* %dest, i8* %src) nounwind
define void @test1(i8* %src) {
; CHECK: @test1
%B = alloca [16 x i8]
%dest = getelementptr inbounds [16 x i8]* %B, i64 0, i64 0
; CHECK-NOT: @strcpy
%call = call i8* @strcpy(i8* %dest, i8* %src)
; CHECK: ret void
ret void
}
declare i8* @strncpy(i8* %dest, i8* %src, i32 %n) nounwind
define void @test2(i8* %src) {
; CHECK: @test2
%B = alloca [16 x i8]
%dest = getelementptr inbounds [16 x i8]* %B, i64 0, i64 0
; CHECK-NOT: @strcpy
%call = call i8* @strncpy(i8* %dest, i8* %src, i32 12)
; CHECK: ret void
ret void
}
declare i8* @strcat(i8* %dest, i8* %src) nounwind
define void @test3(i8* %src) {
; CHECK: @test3
%B = alloca [16 x i8]
%dest = getelementptr inbounds [16 x i8]* %B, i64 0, i64 0
; CHECK-NOT: @strcpy
%call = call i8* @strcat(i8* %dest, i8* %src)
; CHECK: ret void
ret void
}
declare i8* @strncat(i8* %dest, i8* %src, i32 %n) nounwind
define void @test4(i8* %src) {
; CHECK: @test4
%B = alloca [16 x i8]
%dest = getelementptr inbounds [16 x i8]* %B, i64 0, i64 0
; CHECK-NOT: @strcpy
%call = call i8* @strncat(i8* %dest, i8* %src, i32 12)
; CHECK: ret void
ret void
}
|