devirtualize-2.ll
814 Bytes
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
; RUN: opt < %s -inline -S | FileCheck %s
; RUN: opt < %s -passes='cgscc(devirt<4>(inline))' -S | FileCheck %s
; PR4834
define i32 @test1() {
%funcall1_ = call fastcc i32 ()* () @f1()
%executecommandptr1_ = call i32 %funcall1_()
ret i32 %executecommandptr1_
}
define internal fastcc i32 ()* @f1() nounwind readnone {
ret i32 ()* @f2
}
define internal i32 @f2() nounwind readnone {
ret i32 1
}
; CHECK: @test1()
; CHECK-NEXT: ret i32 1
declare i8* @f1a(i8*) ssp align 2
define internal i32 @f2a(i8* %t) inlinehint ssp {
entry:
ret i32 41
}
define internal i32 @f3a(i32 (i8*)* %__f) ssp {
entry:
%A = call i32 %__f(i8* undef)
ret i32 %A
}
define i32 @test2(i8* %this) ssp align 2 {
%X = call i32 @f3a(i32 (i8*)* @f2a) ssp
ret i32 %X
}
; CHECK-LABEL: @test2(
; CHECK-NEXT: ret i32 41