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
|
; RUN: llc < %s -mtriple=thumbv8 -stop-after=if-converter -arm-atomic-cfg-tidy=0 | FileCheck %s
%struct.S = type { i8* (i8*)*, [1 x i8] }
define internal zeroext i8 @bar(%struct.S* %x, %struct.S* nocapture %y) nounwind readonly {
entry:
%0 = getelementptr inbounds %struct.S, %struct.S* %x, i32 0, i32 1, i32 0
%1 = load i8, i8* %0, align 1
%2 = zext i8 %1 to i32
%3 = and i32 %2, 112
%4 = icmp eq i32 %3, 0
br i1 %4, label %return, label %bb
bb:
%5 = getelementptr inbounds %struct.S, %struct.S* %y, i32 0, i32 1, i32 0
%6 = load i8, i8* %5, align 1
%7 = zext i8 %6 to i32
%8 = and i32 %7, 112
%9 = icmp eq i32 %8, 0
br i1 %9, label %return, label %bb2
; CHECK: bb.2.bb2:
; CHECK: successors: %bb.4(0x40000000), %bb.3(0x40000000)
bb2:
%v10 = icmp eq i32 %3, 16
br i1 %v10, label %bb4, label %bb3, !prof !0
bb3:
%v11 = icmp eq i32 %8, 16
br i1 %v11, label %bb4, label %return, !prof !1
bb4:
%v12 = ptrtoint %struct.S* %x to i32
%phitmp = trunc i32 %v12 to i8
ret i8 %phitmp
return:
ret i8 1
}
!0 = !{!"branch_weights", i32 4, i32 12}
!1 = !{!"branch_weights", i32 8, i32 16}
|
