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
|
; RUN: opt < %s -tailcallelim -verify-dom-info -S | FileCheck %s
; Test that we don't tail call in a functions that calls returns_twice
; functions.
declare void @bar()
; CHECK: foo1
; CHECK-NOT: tail call void @bar()
define void @foo1(i32* %x) {
bb:
%tmp75 = tail call i32 @setjmp(i32* %x)
call void @bar()
ret void
}
declare i32 @setjmp(i32*) returns_twice
; CHECK: foo2
; CHECK-NOT: tail call void @bar()
define void @foo2(i32* %x) {
bb:
%tmp75 = tail call i32 @zed2(i32* %x)
call void @bar()
ret void
}
declare i32 @zed2(i32*) returns_twice
|
