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
|
; Test strcmp using CLST, i32 version.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
declare signext i32 @strcmp(ptr %src1, ptr %src2)
; Check a case where the result is used as an integer.
define i32 @f1(ptr %src1, ptr %src2) {
; CHECK-LABEL: f1:
; CHECK: lhi %r0, 0
; CHECK: [[LABEL:\.[^:]*]]:
; CHECK: clst %r3, %r2
; CHECK-NEXT: jo [[LABEL]]
; CHECK-NEXT: %bb.{{[0-9]+}}
; CHECK-NEXT: ipm %r2
; CHECK: sll %r2, 2
; CHECK: sra %r2, 30
; CHECK: br %r14
%res = call i32 @strcmp(ptr %src1, ptr %src2)
ret i32 %res
}
; Check a case where the result is tested for equality.
define void @f2(ptr %src1, ptr %src2, ptr %dest) {
; CHECK-LABEL: f2:
; CHECK: lhi %r0, 0
; CHECK: [[LABEL:\.[^:]*]]:
; CHECK: clst %r3, %r2
; CHECK-NEXT: jo [[LABEL]]
; CHECK-NEXT: %bb.{{[0-9]+}}
; CHECK-NEXT: ber %r14
; CHECK: br %r14
%res = call i32 @strcmp(ptr %src1, ptr %src2)
%cmp = icmp eq i32 %res, 0
br i1 %cmp, label %exit, label %store
store:
store i32 0, ptr %dest
br label %exit
exit:
ret void
}
; Test a case where the result is used both as an integer and for
; branching.
define i32 @f3(ptr %src1, ptr %src2, ptr %dest) {
; CHECK-LABEL: f3:
; CHECK: lhi %r0, 0
; CHECK: [[LABEL:\.[^:]*]]:
; CHECK: clst %r3, %r2
; CHECK-NEXT: jo [[LABEL]]
; CHECK-NEXT: %bb.{{[0-9]+}}
; CHECK-NEXT: ipm %r2
; CHECK: sll %r2, 2
; CHECK: sra %r2, 30
; CHECK: blr %r14
; CHECK: br %r14
entry:
%res = call i32 @strcmp(ptr %src1, ptr %src2)
%cmp = icmp slt i32 %res, 0
br i1 %cmp, label %exit, label %store
store:
store i32 0, ptr %dest
br label %exit
exit:
ret i32 %res
}
|
