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
47
48
49
50
|
; RUN: llc -mtriple=sparc -O0 <%s
; RUN: llc -mtriple=sparc <%s | FileCheck %s --check-prefix=V8
; RUN: llc -mtriple=sparcv9 <%s | FileCheck %s --check-prefix=V9
; V8-LABEL: test
; V8: save %sp
; V8: call foo
; V8-NEXT: nop
; V8: call bar
; V8-NEXT: nop
; V8: ret
; V8-NEXT: restore
; V9-LABEL: test
; V9: save %sp
; V9: call foo
; V9-NEXT: nop
; V9: call bar
; V9-NEXT: nop
; V9: ret
; V9-NEXT: restore
define void @test() #0 {
entry:
%0 = tail call i32 (...) @foo() nounwind
tail call void (...) @bar() nounwind
ret void
}
declare i32 @foo(...)
declare void @bar(...)
; V8-LABEL: test_tail_call_with_return
; V8: mov %o7, %g1
; V8-NEXT: call foo
; V8-NEXT: mov %g1, %o7
; V9-LABEL: test_tail_call_with_return
; V9: mov %o7, %g1
; V9-NEXT: call foo
; V9-NEXT: mov %g1, %o7
define i32 @test_tail_call_with_return() nounwind {
entry:
%0 = tail call i32 (...) @foo() nounwind
ret i32 %0
}
attributes #0 = { nounwind "disable-tail-calls"="true" }
|
