xref: /aosp_15_r20/external/llvm/test/CodeGen/PowerPC/2010-04-01-MachineCSEBug.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58) 
1*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mtriple=powerpc-apple-darwin10.0
2*9880d681SAndroid Build Coastguard Worker; rdar://7819990
3*9880d681SAndroid Build Coastguard Worker
4*9880d681SAndroid Build Coastguard Worker%0 = type { i32 }
5*9880d681SAndroid Build Coastguard Worker%1 = type { i64 }
6*9880d681SAndroid Build Coastguard Worker%struct.Buffer = type { [1024 x i8], i64, i64, i64 }
7*9880d681SAndroid Build Coastguard Worker%struct.InStream = type { %struct.Buffer, %0, %1, i32*, %struct.InStreamMethods* }
8*9880d681SAndroid Build Coastguard Worker%struct.InStreamMethods = type { void (%struct.InStream*, i8*, i32)*, void (%struct.InStream*, i64)*, i64 (%struct.InStream*)*, void (%struct.InStream*)* }
9*9880d681SAndroid Build Coastguard Worker
10*9880d681SAndroid Build Coastguard Workerdefine i64 @t(%struct.InStream* %is) nounwind optsize ssp {
11*9880d681SAndroid Build Coastguard Workerentry:
12*9880d681SAndroid Build Coastguard Worker  br i1 undef, label %is_read_byte.exit, label %bb.i
13*9880d681SAndroid Build Coastguard Worker
14*9880d681SAndroid Build Coastguard Workerbb.i:                                             ; preds = %entry
15*9880d681SAndroid Build Coastguard Worker  br label %is_read_byte.exit
16*9880d681SAndroid Build Coastguard Worker
17*9880d681SAndroid Build Coastguard Workeris_read_byte.exit:                                ; preds = %bb.i, %entry
18*9880d681SAndroid Build Coastguard Worker  br i1 undef, label %is_read_byte.exit22, label %bb.i21
19*9880d681SAndroid Build Coastguard Worker
20*9880d681SAndroid Build Coastguard Workerbb.i21:                                           ; preds = %is_read_byte.exit
21*9880d681SAndroid Build Coastguard Worker  unreachable
22*9880d681SAndroid Build Coastguard Worker
23*9880d681SAndroid Build Coastguard Workeris_read_byte.exit22:                              ; preds = %is_read_byte.exit
24*9880d681SAndroid Build Coastguard Worker  br i1 undef, label %is_read_byte.exit19, label %bb.i18
25*9880d681SAndroid Build Coastguard Worker
26*9880d681SAndroid Build Coastguard Workerbb.i18:                                           ; preds = %is_read_byte.exit22
27*9880d681SAndroid Build Coastguard Worker  br label %is_read_byte.exit19
28*9880d681SAndroid Build Coastguard Worker
29*9880d681SAndroid Build Coastguard Workeris_read_byte.exit19:                              ; preds = %bb.i18, %is_read_byte.exit22
30*9880d681SAndroid Build Coastguard Worker  br i1 undef, label %is_read_byte.exit16, label %bb.i15
31*9880d681SAndroid Build Coastguard Worker
32*9880d681SAndroid Build Coastguard Workerbb.i15:                                           ; preds = %is_read_byte.exit19
33*9880d681SAndroid Build Coastguard Worker  unreachable
34*9880d681SAndroid Build Coastguard Worker
35*9880d681SAndroid Build Coastguard Workeris_read_byte.exit16:                              ; preds = %is_read_byte.exit19
36*9880d681SAndroid Build Coastguard Worker  %0 = shl i64 undef, 32                          ; <i64> [#uses=1]
37*9880d681SAndroid Build Coastguard Worker  br i1 undef, label %is_read_byte.exit13, label %bb.i12
38*9880d681SAndroid Build Coastguard Worker
39*9880d681SAndroid Build Coastguard Workerbb.i12:                                           ; preds = %is_read_byte.exit16
40*9880d681SAndroid Build Coastguard Worker  unreachable
41*9880d681SAndroid Build Coastguard Worker
42*9880d681SAndroid Build Coastguard Workeris_read_byte.exit13:                              ; preds = %is_read_byte.exit16
43*9880d681SAndroid Build Coastguard Worker  %1 = shl i64 undef, 24                          ; <i64> [#uses=1]
44*9880d681SAndroid Build Coastguard Worker  br i1 undef, label %is_read_byte.exit10, label %bb.i9
45*9880d681SAndroid Build Coastguard Worker
46*9880d681SAndroid Build Coastguard Workerbb.i9:                                            ; preds = %is_read_byte.exit13
47*9880d681SAndroid Build Coastguard Worker  unreachable
48*9880d681SAndroid Build Coastguard Worker
49*9880d681SAndroid Build Coastguard Workeris_read_byte.exit10:                              ; preds = %is_read_byte.exit13
50*9880d681SAndroid Build Coastguard Worker  %2 = shl i64 undef, 16                          ; <i64> [#uses=1]
51*9880d681SAndroid Build Coastguard Worker  br i1 undef, label %is_read_byte.exit7, label %bb.i6
52*9880d681SAndroid Build Coastguard Worker
53*9880d681SAndroid Build Coastguard Workerbb.i6:                                            ; preds = %is_read_byte.exit10
54*9880d681SAndroid Build Coastguard Worker  br label %is_read_byte.exit7
55*9880d681SAndroid Build Coastguard Worker
56*9880d681SAndroid Build Coastguard Workeris_read_byte.exit7:                               ; preds = %bb.i6, %is_read_byte.exit10
57*9880d681SAndroid Build Coastguard Worker  %3 = shl i64 undef, 8                           ; <i64> [#uses=1]
58*9880d681SAndroid Build Coastguard Worker  br i1 undef, label %is_read_byte.exit4, label %bb.i3
59*9880d681SAndroid Build Coastguard Worker
60*9880d681SAndroid Build Coastguard Workerbb.i3:                                            ; preds = %is_read_byte.exit7
61*9880d681SAndroid Build Coastguard Worker  unreachable
62*9880d681SAndroid Build Coastguard Worker
63*9880d681SAndroid Build Coastguard Workeris_read_byte.exit4:                               ; preds = %is_read_byte.exit7
64*9880d681SAndroid Build Coastguard Worker  %4 = or i64 0, %0                               ; <i64> [#uses=1]
65*9880d681SAndroid Build Coastguard Worker  %5 = or i64 %4, %1                              ; <i64> [#uses=1]
66*9880d681SAndroid Build Coastguard Worker  %6 = or i64 %5, %2                              ; <i64> [#uses=1]
67*9880d681SAndroid Build Coastguard Worker  %7 = or i64 %6, %3                              ; <i64> [#uses=1]
68*9880d681SAndroid Build Coastguard Worker  %8 = or i64 %7, 0                               ; <i64> [#uses=1]
69*9880d681SAndroid Build Coastguard Worker  ret i64 %8
70*9880d681SAndroid Build Coastguard Worker}
71