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
| ; RUN: llc -verify-machineinstrs -mcpu=pwr7 < %s | FileCheck %s
target datalayout = "E-m:e-i64:64-n32:64"
target triple = "powerpc64-unknown-linux-gnu"
%struct.inode.0.12.120 = type { i8* }
%struct.kstat2.1.13.121 = type { i32 }
%struct.task_struct.4.16.124 = type { i8*, %struct.atomic_t.2.14.122, %struct.signal_struct.3.15.123* }
%struct.atomic_t.2.14.122 = type { i32 }
%struct.signal_struct.3.15.123 = type { i64 }
%struct.pid.5.17.125 = type { i8* }
; Function Attrs: nounwind
define signext i32 @proc_task_getattr(%struct.inode.0.12.120* nocapture readonly %inode, %struct.kstat2.1.13.121* nocapture %stat) #0 {
entry:
%call1.i = tail call %struct.task_struct.4.16.124* @get_pid_task(%struct.pid.5.17.125* undef, i32 zeroext 0) #0
br i1 undef, label %if.end, label %if.then
if.then: ; preds = %entry
%0 = load i64, i64* undef, align 8
%conv.i = trunc i64 %0 to i32
%1 = load i32, i32* null, align 4
%add = add i32 %1, %conv.i
store i32 %add, i32* null, align 4
%counter.i.i = getelementptr inbounds %struct.task_struct.4.16.124, %struct.task_struct.4.16.124* %call1.i, i64 0, i32 1, i32 0
%2 = tail call i32 asm sideeffect "\09lwsync\0A1:\09lwarx\09$0,0,$1\09\09# atomic_dec_return\0A\09addic\09$0,$0,-1\0A\09stwcx.\09$0,0,$1\0A\09bne-\091b\0A\09sync\0A", "=&r,r,~{cr0},~{xer},~{memory}"(i32* %counter.i.i) #0
%cmp.i = icmp eq i32 %2, 0
br i1 %cmp.i, label %if.then.i, label %if.end
; CHECK-LABEL: @proc_task_getattr
; CHECK-NOT: stwcx. [[REG:[0-9]+]],0,[[REG]]
; CHECK: blr
if.then.i: ; preds = %if.then
%3 = bitcast %struct.task_struct.4.16.124* %call1.i to i8*
tail call void @foo(i8* %3) #0
unreachable
if.end: ; preds = %if.then, %entry
ret i32 0
}
declare void @foo(i8*)
declare %struct.task_struct.4.16.124* @get_pid_task(%struct.pid.5.17.125*, i32 zeroext)
attributes #0 = { nounwind }
|