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
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
|
; Verify that i32 argument/return values are extended to i64
; RUN: llc -verify-machineinstrs < %s | FileCheck %s
target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f128:128:128-v128:128:128-n32:64"
target triple = "powerpc64-unknown-linux-gnu"
@si = common global i32 0, align 4
@ui = common global i32 0, align 4
declare void @arg_si(i32 signext)
declare void @arg_ui(i32 zeroext)
declare signext i32 @ret_si()
declare zeroext i32 @ret_ui()
define void @pass_arg_si() nounwind {
entry:
%0 = load i32, i32* @si, align 4
tail call void @arg_si(i32 signext %0) nounwind
ret void
}
; CHECK: @pass_arg_si
; CHECK: lwa 3,
; CHECK: bl arg_si
define void @pass_arg_ui() nounwind {
entry:
%0 = load i32, i32* @ui, align 4
tail call void @arg_ui(i32 zeroext %0) nounwind
ret void
}
; CHECK: @pass_arg_ui
; CHECK: lwz 3,
; CHECK: bl arg_ui
define i64 @use_arg_si(i32 signext %x) nounwind readnone {
entry:
%conv = sext i32 %x to i64
ret i64 %conv
}
; CHECK: @use_arg_si
; CHECK: %entry
; CHECK-NEXT: blr
define i64 @use_arg_ui(i32 zeroext %x) nounwind readnone {
entry:
%conv = zext i32 %x to i64
ret i64 %conv
}
; CHECK: @use_arg_ui
; CHECK: %entry
; CHECK-NEXT: blr
define signext i32 @pass_ret_si() nounwind readonly {
entry:
%0 = load i32, i32* @si, align 4
ret i32 %0
}
; CHECK: @pass_ret_si
; CHECK: lwa 3,
; CHECK: blr
define zeroext i32 @pass_ret_ui() nounwind readonly {
entry:
%0 = load i32, i32* @ui, align 4
ret i32 %0
}
; CHECK: @pass_ret_ui
; CHECK: lwz 3,
; CHECK: blr
define i64 @use_ret_si() nounwind {
entry:
%call = tail call signext i32 @ret_si() nounwind
%conv = sext i32 %call to i64
ret i64 %conv
}
; CHECK: @use_ret_si
; CHECK: bl ret_si
; This is to verify the return register (3) set up by the ret_si
; call is passed on unmodified as return value of use_ret_si.
; CHECK-NOT: 3
; CHECK: blr
define i64 @use_ret_ui() nounwind {
entry:
%call = tail call zeroext i32 @ret_ui() nounwind
%conv = zext i32 %call to i64
ret i64 %conv
}
; CHECK: @use_ret_ui
; CHECK: bl ret_ui
; This is to verify the return register (3) set up by the ret_ui
; call is passed on unmodified as return value of use_ret_ui.
; CHECK-NOT: 3
; CHECK: blr
|
