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
|
; RUN: llc -verify-machineinstrs -o - %s -mtriple=aarch64-linux-gnu | FileCheck %s
@var32 = global i32 0
@var64 = global i64 0
define void @foo() {
; CHECK-LABEL: foo:
%val1 = load volatile i32, ptr @var32
%tst1 = icmp eq i32 %val1, 0
br i1 %tst1, label %end, label %test2, !prof !1
; CHECK: cbz {{w[0-9]+}}, .LBB
test2:
%val2 = load volatile i32, ptr @var32
%tst2 = icmp ne i32 %val2, 0
br i1 %tst2, label %end, label %test3, !prof !1
; CHECK: cbnz {{w[0-9]+}}, .LBB
test3:
%val3 = load volatile i64, ptr @var64
%tst3 = icmp eq i64 %val3, 0
br i1 %tst3, label %end, label %test4, !prof !1
; CHECK: cbz {{x[0-9]+}}, .LBB
test4:
%val4 = load volatile i64, ptr @var64
%tst4 = icmp ne i64 %val4, 0
br i1 %tst4, label %end, label %test5, !prof !1
; CHECK: cbnz {{x[0-9]+}}, .LBB
test5:
store volatile i64 %val4, ptr @var64
ret void
end:
ret void
}
!1 = !{!"branch_weights", i32 1, i32 1}
|
