branch-funnel.ll
7.22 KB
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
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
; RUN: opt -S -wholeprogramdevirt -whole-program-visibility %s | FileCheck --check-prefixes=CHECK,RETP %s
; RUN: sed -e 's,+retpoline,-retpoline,g' %s | opt -S -wholeprogramdevirt -whole-program-visibility | FileCheck --check-prefixes=CHECK,NORETP %s
; RUN: opt -wholeprogramdevirt -whole-program-visibility -wholeprogramdevirt-summary-action=export -wholeprogramdevirt-read-summary=%S/Inputs/export.yaml -wholeprogramdevirt-write-summary=%t -S -o - %s | FileCheck --check-prefixes=CHECK,RETP %s
; RUN: opt -wholeprogramdevirt -whole-program-visibility -wholeprogramdevirt-summary-action=export -wholeprogramdevirt-read-summary=%S/Inputs/export.yaml -wholeprogramdevirt-write-summary=%t -O3 -S -o - %s | FileCheck --check-prefixes=CHECK %s
; RUN: FileCheck --check-prefix=SUMMARY %s < %t
; SUMMARY: TypeIdMap:
; SUMMARY-NEXT: typeid3:
; SUMMARY-NEXT: TTRes:
; SUMMARY-NEXT: Kind: Unknown
; SUMMARY-NEXT: SizeM1BitWidth: 0
; SUMMARY-NEXT: AlignLog2: 0
; SUMMARY-NEXT: SizeM1: 0
; SUMMARY-NEXT: BitMask: 0
; SUMMARY-NEXT: InlineBits: 0
; SUMMARY-NEXT: WPDRes:
; SUMMARY-NEXT: 0:
; SUMMARY-NEXT: Kind: BranchFunnel
; SUMMARY-NEXT: SingleImplName: ''
; SUMMARY-NEXT: ResByArg:
; SUMMARY-NEXT: typeid1:
; SUMMARY-NEXT: TTRes:
; SUMMARY-NEXT: Kind: Unknown
; SUMMARY-NEXT: SizeM1BitWidth: 0
; SUMMARY-NEXT: AlignLog2: 0
; SUMMARY-NEXT: SizeM1: 0
; SUMMARY-NEXT: BitMask: 0
; SUMMARY-NEXT: InlineBits: 0
; SUMMARY-NEXT: WPDRes:
; SUMMARY-NEXT: 0:
; SUMMARY-NEXT: Kind: BranchFunnel
; SUMMARY-NEXT: SingleImplName: ''
; SUMMARY-NEXT: ResByArg:
; SUMMARY-NEXT: typeid2:
; SUMMARY-NEXT: TTRes:
; SUMMARY-NEXT: Kind: Unknown
; SUMMARY-NEXT: SizeM1BitWidth: 0
; SUMMARY-NEXT: AlignLog2: 0
; SUMMARY-NEXT: SizeM1: 0
; SUMMARY-NEXT: BitMask: 0
; SUMMARY-NEXT: InlineBits: 0
; SUMMARY-NEXT: WPDRes:
; SUMMARY-NEXT: 0:
; SUMMARY-NEXT: Kind: Indir
; SUMMARY-NEXT: SingleImplName: ''
; SUMMARY-NEXT: ResByArg:
target datalayout = "e-p:64:64"
target triple = "x86_64-unknown-linux-gnu"
@vt1_1 = constant [1 x i8*] [i8* bitcast (i32 (i8*, i32)* @vf1_1 to i8*)], !type !0
@vt1_2 = constant [1 x i8*] [i8* bitcast (i32 (i8*, i32)* @vf1_2 to i8*)], !type !0
declare i32 @vf1_1(i8* %this, i32 %arg)
declare i32 @vf1_2(i8* %this, i32 %arg)
@vt2_1 = constant [1 x i8*] [i8* bitcast (i32 (i8*, i32)* @vf2_1 to i8*)], !type !1
@vt2_2 = constant [1 x i8*] [i8* bitcast (i32 (i8*, i32)* @vf2_2 to i8*)], !type !1
@vt2_3 = constant [1 x i8*] [i8* bitcast (i32 (i8*, i32)* @vf2_3 to i8*)], !type !1
@vt2_4 = constant [1 x i8*] [i8* bitcast (i32 (i8*, i32)* @vf2_4 to i8*)], !type !1
@vt2_5 = constant [1 x i8*] [i8* bitcast (i32 (i8*, i32)* @vf2_5 to i8*)], !type !1
@vt2_6 = constant [1 x i8*] [i8* bitcast (i32 (i8*, i32)* @vf2_6 to i8*)], !type !1
@vt2_7 = constant [1 x i8*] [i8* bitcast (i32 (i8*, i32)* @vf2_7 to i8*)], !type !1
@vt2_8 = constant [1 x i8*] [i8* bitcast (i32 (i8*, i32)* @vf2_8 to i8*)], !type !1
@vt2_9 = constant [1 x i8*] [i8* bitcast (i32 (i8*, i32)* @vf2_9 to i8*)], !type !1
@vt2_10 = constant [1 x i8*] [i8* bitcast (i32 (i8*, i32)* @vf2_10 to i8*)], !type !1
@vt2_11 = constant [1 x i8*] [i8* bitcast (i32 (i8*, i32)* @vf2_11 to i8*)], !type !1
declare i32 @vf2_1(i8* %this, i32 %arg)
declare i32 @vf2_2(i8* %this, i32 %arg)
declare i32 @vf2_3(i8* %this, i32 %arg)
declare i32 @vf2_4(i8* %this, i32 %arg)
declare i32 @vf2_5(i8* %this, i32 %arg)
declare i32 @vf2_6(i8* %this, i32 %arg)
declare i32 @vf2_7(i8* %this, i32 %arg)
declare i32 @vf2_8(i8* %this, i32 %arg)
declare i32 @vf2_9(i8* %this, i32 %arg)
declare i32 @vf2_10(i8* %this, i32 %arg)
declare i32 @vf2_11(i8* %this, i32 %arg)
@vt3_1 = constant [1 x i8*] [i8* bitcast (i32 (i8*, i32)* @vf3_1 to i8*)], !type !2
@vt3_2 = constant [1 x i8*] [i8* bitcast (i32 (i8*, i32)* @vf3_2 to i8*)], !type !2
declare i32 @vf3_1(i8* %this, i32 %arg)
declare i32 @vf3_2(i8* %this, i32 %arg)
@vt4_1 = constant [1 x i8*] [i8* bitcast (i32 (i8*, i32)* @vf4_1 to i8*)], !type !3
@vt4_2 = constant [1 x i8*] [i8* bitcast (i32 (i8*, i32)* @vf4_2 to i8*)], !type !3
declare i32 @vf4_1(i8* %this, i32 %arg)
declare i32 @vf4_2(i8* %this, i32 %arg)
; CHECK-LABEL: define i32 @fn1
; CHECK-NOT: call void (...) @llvm.icall.branch.funnel
define i32 @fn1(i8* %obj) #0 {
%vtableptr = bitcast i8* %obj to [1 x i8*]**
%vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr
%vtablei8 = bitcast [1 x i8*]* %vtable to i8*
%p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid1")
call void @llvm.assume(i1 %p)
%fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0
%fptr = load i8*, i8** %fptrptr
%fptr_casted = bitcast i8* %fptr to i32 (i8*, i32)*
; RETP: {{.*}} = bitcast {{.*}} to i8*
; RETP: [[VT1:%.*]] = bitcast {{.*}} to i8*
; RETP: call i32 bitcast (void (i8*, ...)* @__typeid_typeid1_0_branch_funnel to i32 (i8*, i8*, i32)*)(i8* nest [[VT1]], i8* %obj, i32 1)
%result = call i32 %fptr_casted(i8* %obj, i32 1)
; NORETP: call i32 %
ret i32 %result
}
; CHECK-LABEL: define i32 @fn2
; CHECK-NOT: call void (...) @llvm.icall.branch.funnel
define i32 @fn2(i8* %obj) #0 {
%vtableptr = bitcast i8* %obj to [1 x i8*]**
%vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr
%vtablei8 = bitcast [1 x i8*]* %vtable to i8*
%p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid2")
call void @llvm.assume(i1 %p)
%fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0
%fptr = load i8*, i8** %fptrptr
%fptr_casted = bitcast i8* %fptr to i32 (i8*, i32)*
; CHECK: call i32 %
%result = call i32 %fptr_casted(i8* %obj, i32 1)
ret i32 %result
}
; CHECK-LABEL: define i32 @fn3
; CHECK-NOT: call void (...) @llvm.icall.branch.funnel
define i32 @fn3(i8* %obj) #0 {
%vtableptr = bitcast i8* %obj to [1 x i8*]**
%vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr
%vtablei8 = bitcast [1 x i8*]* %vtable to i8*
%p = call i1 @llvm.type.test(i8* %vtablei8, metadata !4)
call void @llvm.assume(i1 %p)
%fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0
%fptr = load i8*, i8** %fptrptr
%fptr_casted = bitcast i8* %fptr to i32 (i8*, i32)*
; RETP: call i32 bitcast (void (i8*, ...)* @branch_funnel to
; NORETP: call i32 %
%result = call i32 %fptr_casted(i8* %obj, i32 1)
ret i32 %result
}
; CHECK-LABEL: define internal void @branch_funnel(i8*
; CHECK: define hidden void @__typeid_typeid1_0_branch_funnel(i8* nest %0, ...)
; CHECK-NEXT: musttail call void (...) @llvm.icall.branch.funnel(i8* %0, i8* bitcast ([1 x i8*]* {{(nonnull )?}}@vt1_1 to i8*), i32 (i8*, i32)* {{(nonnull )?}}@vf1_1, i8* bitcast ([1 x i8*]* {{(nonnull )?}}@vt1_2 to i8*), i32 (i8*, i32)* {{(nonnull )?}}@vf1_2, ...)
declare i1 @llvm.type.test(i8*, metadata)
declare void @llvm.assume(i1)
!0 = !{i32 0, !"typeid1"}
!1 = !{i32 0, !"typeid2"}
!2 = !{i32 0, !"typeid3"}
!3 = !{i32 0, !4}
!4 = distinct !{}
attributes #0 = { "target-features"="+retpoline" }