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
|
; RUN: llc -verify-machineinstrs -o - %s -mtriple=arm64-apple-ios7.0 -aarch64-enable-atomic-cfg-tidy=0 | FileCheck %s
; We've got the usual issues with LLVM reordering blocks here. The
; tests are correct for the current order, but who knows when that
; will change. Beware!
@var32 = global i32 0
@var64 = global i64 0
define i32 @test_tbz() {
; CHECK-LABEL: test_tbz:
%val = load i32, i32* @var32
%val64 = load i64, i64* @var64
%tbit0 = and i32 %val, 32768
%tst0 = icmp ne i32 %tbit0, 0
br i1 %tst0, label %test1, label %end1
; CHECK: tbz {{w[0-9]+}}, #15, [[LBL_end1:.?LBB0_[0-9]+]]
test1:
%tbit1 = and i32 %val, 4096
%tst1 = icmp ne i32 %tbit1, 0
br i1 %tst1, label %test2, label %end1
; CHECK: tbz {{w[0-9]+}}, #12, [[LBL_end1]]
test2:
%tbit2 = and i64 %val64, 32768
%tst2 = icmp ne i64 %tbit2, 0
br i1 %tst2, label %test3, label %end1
; CHECK: tbz {{[wx][0-9]+}}, #15, [[LBL_end1]]
test3:
%tbit3 = and i64 %val64, 4096
%tst3 = icmp ne i64 %tbit3, 0
br i1 %tst3, label %end2, label %end1
; CHECK: tbz {{[wx][0-9]+}}, #12, [[LBL_end1]]
end2:
; CHECK: mov w0, #1
; CHECK-NEXT: ret
ret i32 1
end1:
; CHECK: [[LBL_end1]]:
; CHECK-NEXT: mov w0, wzr
; CHECK-NEXT: ret
ret i32 0
}
|
