File: icp_vtable_cmp.ll

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,998,520 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (139 lines) | stat: -rw-r--r-- 7,894 bytes parent folder | download | duplicates (3)
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
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5

; RUN: opt < %s -passes='pgo-icall-prom' -pass-remarks=pgo-icall-prom -enable-vtable-profile-use -icp-max-num-vtable-last-candidate=2 -S 2>&1 | FileCheck %s --check-prefixes=VTABLE-COMMON,VTABLE-CMP
; RUN: opt < %s -passes='pgo-icall-prom' -pass-remarks=pgo-icall-prom -enable-vtable-profile-use -icp-max-num-vtable-last-candidate=1 -S 2>&1 | FileCheck %s --check-prefixes=VTABLE-COMMON,FUNC-CMP

target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

@Base1 = constant { [4 x ptr] } { [4 x ptr] [ptr null, ptr null, ptr @Base1_foo, ptr @Base1_bar] }, !type !0
@Base2 = constant { [3 x ptr] } { [3 x ptr] [ptr null, ptr null, ptr @Base2_foo] }, !type !2
@Base3 = constant { [3 x ptr] } { [3 x ptr] [ptr null, ptr null, ptr @Base3_foo] }, !type !6

@Derived1 = constant { [3 x ptr], [4 x ptr] } { [3 x ptr] [ptr null, ptr null, ptr @Base2_foo], [4 x ptr] [ptr null, ptr null, ptr @Base1_foo, ptr @Derived1_bar] }, !type !1, !type !2, !type !3
@Derived2 = constant { [3 x ptr], [3 x ptr], [4 x ptr] } { [3 x ptr] [ptr null, ptr null, ptr @Base3_foo], [3 x ptr] [ptr null, ptr null, ptr @Base2_foo], [4 x ptr] [ptr null, ptr null, ptr @Base1_foo, ptr @Derived2_bar] }, !type !4, !type !5, !type !6, !type !7
@Derived3 = constant { [4 x ptr] } { [4 x ptr] [ptr null, ptr null, ptr @Base1_foo, ptr @Base1_bar] }, !type !0, !type !8

; VTABLE-CMP: remark: <unknown>:0:0: Promote indirect call to Derived1_bar with count 600 out of 1600, sink 2 instruction(s) and compare 1 vtable(s): {Derived1}
; VTABLE-CMP: remark: <unknown>:0:0: Promote indirect call to Derived2_bar with count 500 out of 1000, sink 2 instruction(s) and compare 1 vtable(s): {Derived2}
; VTABLE-CMP: remark: <unknown>:0:0: Promote indirect call to Base1_bar with count 400 out of 500, sink 2 instruction(s) and compare 2 vtable(s): {Derived3, Base1}

define void @test(ptr %d) {
; VTABLE-CMP-LABEL: define void @test(
; VTABLE-CMP-SAME: ptr [[D:%.*]]) {
; VTABLE-CMP-NEXT:  [[ENTRY:.*:]]
; VTABLE-CMP-NEXT:    [[VTABLE:%.*]] = load ptr, ptr [[D]], align 8, !prof [[PROF9:![0-9]+]]
; VTABLE-CMP-NEXT:    [[TMP0:%.*]] = tail call i1 @llvm.type.test(ptr [[VTABLE]], metadata !"Base1")
; VTABLE-CMP-NEXT:    tail call void @llvm.assume(i1 [[TMP0]])
; VTABLE-CMP-NEXT:    [[TMP1:%.*]] = icmp eq ptr [[VTABLE]], getelementptr inbounds (i8, ptr @Derived1, i32 40)
; VTABLE-CMP-NEXT:    br i1 [[TMP1]], label %[[IF_TRUE_DIRECT_TARG:.*]], label %[[IF_FALSE_ORIG_INDIRECT:.*]], !prof [[PROF10:![0-9]+]]
; VTABLE-CMP:       [[IF_TRUE_DIRECT_TARG]]:
; VTABLE-CMP-NEXT:    call void @Derived1_bar(ptr [[D]])
; VTABLE-CMP-NEXT:    br label %[[IF_END_ICP:.*]]
; VTABLE-CMP:       [[IF_FALSE_ORIG_INDIRECT]]:
; VTABLE-CMP-NEXT:    [[TMP2:%.*]] = icmp eq ptr [[VTABLE]], getelementptr inbounds (i8, ptr @Derived2, i32 64)
; VTABLE-CMP-NEXT:    br i1 [[TMP2]], label %[[IF_TRUE_DIRECT_TARG1:.*]], label %[[IF_FALSE_ORIG_INDIRECT2:.*]], !prof [[PROF11:![0-9]+]]
; VTABLE-CMP:       [[IF_TRUE_DIRECT_TARG1]]:
; VTABLE-CMP-NEXT:    call void @Derived2_bar(ptr [[D]])
; VTABLE-CMP-NEXT:    br label %[[IF_END_ICP3:.*]]
; VTABLE-CMP:       [[IF_FALSE_ORIG_INDIRECT2]]:
; VTABLE-CMP-NEXT:    [[TMP3:%.*]] = icmp eq ptr [[VTABLE]], getelementptr inbounds (i8, ptr @Base1, i32 16)
; VTABLE-CMP-NEXT:    [[TMP4:%.*]] = icmp eq ptr [[VTABLE]], getelementptr inbounds (i8, ptr @Derived3, i32 16)
; VTABLE-CMP-NEXT:    [[TMP5:%.*]] = or i1 [[TMP3]], [[TMP4]]
; VTABLE-CMP-NEXT:    br i1 [[TMP5]], label %[[IF_TRUE_DIRECT_TARG4:.*]], label %[[IF_FALSE_ORIG_INDIRECT5:.*]], !prof [[PROF12:![0-9]+]]
; VTABLE-CMP:       [[IF_TRUE_DIRECT_TARG4]]:
; VTABLE-CMP-NEXT:    call void @Base1_bar(ptr [[D]])
; VTABLE-CMP-NEXT:    br label %[[IF_END_ICP6:.*]]
; VTABLE-CMP:       [[IF_FALSE_ORIG_INDIRECT5]]:
; VTABLE-CMP-NEXT:    [[VFN:%.*]] = getelementptr inbounds ptr, ptr [[VTABLE]], i64 1
; VTABLE-CMP-NEXT:    [[TMP6:%.*]] = load ptr, ptr [[VFN]], align 8
; VTABLE-CMP-NEXT:    call void [[TMP6]](ptr [[D]])
; VTABLE-CMP-NEXT:    br label %[[IF_END_ICP6]]
; VTABLE-CMP:       [[IF_END_ICP6]]:
; VTABLE-CMP-NEXT:    br label %[[IF_END_ICP3]]
; VTABLE-CMP:       [[IF_END_ICP3]]:
; VTABLE-CMP-NEXT:    br label %[[IF_END_ICP]]
; VTABLE-CMP:       [[IF_END_ICP]]:
; VTABLE-CMP-NEXT:    ret void
;
; FUNC-CMP-LABEL: define void @test(
; FUNC-CMP-SAME: ptr [[D:%.*]]) {
; FUNC-CMP-NEXT:  [[ENTRY:.*:]]
; FUNC-CMP-NEXT:    [[VTABLE:%.*]] = load ptr, ptr [[D]], align 8, !prof [[PROF9:![0-9]+]]
; FUNC-CMP-NEXT:    [[TMP0:%.*]] = tail call i1 @llvm.type.test(ptr [[VTABLE]], metadata !"Base1")
; FUNC-CMP-NEXT:    tail call void @llvm.assume(i1 [[TMP0]])
; FUNC-CMP-NEXT:    [[VFN:%.*]] = getelementptr inbounds ptr, ptr [[VTABLE]], i64 1
; FUNC-CMP-NEXT:    [[TMP1:%.*]] = load ptr, ptr [[VFN]], align 8
; FUNC-CMP-NEXT:    [[TMP2:%.*]] = icmp eq ptr [[TMP1]], @Derived1_bar
; FUNC-CMP-NEXT:    br i1 [[TMP2]], label %[[IF_TRUE_DIRECT_TARG:.*]], label %[[IF_FALSE_ORIG_INDIRECT:.*]], !prof [[PROF10:![0-9]+]]
; FUNC-CMP:       [[IF_TRUE_DIRECT_TARG]]:
; FUNC-CMP-NEXT:    call void @Derived1_bar(ptr [[D]])
; FUNC-CMP-NEXT:    br label %[[IF_END_ICP:.*]]
; FUNC-CMP:       [[IF_FALSE_ORIG_INDIRECT]]:
; FUNC-CMP-NEXT:    [[TMP3:%.*]] = icmp eq ptr [[TMP1]], @Derived2_bar
; FUNC-CMP-NEXT:    br i1 [[TMP3]], label %[[IF_TRUE_DIRECT_TARG1:.*]], label %[[IF_FALSE_ORIG_INDIRECT2:.*]], !prof [[PROF11:![0-9]+]]
; FUNC-CMP:       [[IF_TRUE_DIRECT_TARG1]]:
; FUNC-CMP-NEXT:    call void @Derived2_bar(ptr [[D]])
; FUNC-CMP-NEXT:    br label %[[IF_END_ICP3:.*]]
; FUNC-CMP:       [[IF_FALSE_ORIG_INDIRECT2]]:
; FUNC-CMP-NEXT:    [[TMP4:%.*]] = icmp eq ptr [[TMP1]], @Base1_bar
; FUNC-CMP-NEXT:    br i1 [[TMP4]], label %[[IF_TRUE_DIRECT_TARG4:.*]], label %[[IF_FALSE_ORIG_INDIRECT5:.*]], !prof [[PROF12:![0-9]+]]
; FUNC-CMP:       [[IF_TRUE_DIRECT_TARG4]]:
; FUNC-CMP-NEXT:    call void @Base1_bar(ptr [[D]])
; FUNC-CMP-NEXT:    br label %[[IF_END_ICP6:.*]]
; FUNC-CMP:       [[IF_FALSE_ORIG_INDIRECT5]]:
; FUNC-CMP-NEXT:    call void [[TMP1]](ptr [[D]])
; FUNC-CMP-NEXT:    br label %[[IF_END_ICP6]]
; FUNC-CMP:       [[IF_END_ICP6]]:
; FUNC-CMP-NEXT:    br label %[[IF_END_ICP3]]
; FUNC-CMP:       [[IF_END_ICP3]]:
; FUNC-CMP-NEXT:    br label %[[IF_END_ICP]]
; FUNC-CMP:       [[IF_END_ICP]]:
; FUNC-CMP-NEXT:    ret void
;
entry:
  %vtable = load ptr, ptr %d, !prof !9
  %0 = tail call i1 @llvm.type.test(ptr %vtable, metadata !"Base1")
  tail call void @llvm.assume(i1 %0)
  %vfn = getelementptr inbounds ptr, ptr %vtable, i64 1
  %1 = load ptr, ptr %vfn
  call void %1(ptr %d), !prof !10
  ret void
}

define void @Base1_bar(ptr %this) {
  ret void
}

define void @Derived1_bar(ptr %this) {
  ret void
}

define void @Derived2_bar(ptr %this) {
  ret void
}


declare i1 @llvm.type.test(ptr, metadata)
declare void @llvm.assume(i1)
declare i32 @Base2_foo(ptr)
declare i32 @Base1_foo(ptr)
declare void @Base3_foo(ptr)

!0 = !{i64 16, !"Base1"}
!1 = !{i64 40, !"Base1"}
!2 = !{i64 16, !"Base2"}
!3 = !{i64 16, !"Derived1"}
!4 = !{i64 64, !"Base1"}
!5 = !{i64 40, !"Base2"}
!6 = !{i64 16, !"Base3"}
!7 = !{i64 16, !"Derived2"}
!8 = !{i64 16, !"Derived3"}
!9 = !{!"VP", i32 2, i64 1600, i64 -4123858694673519054, i64 600, i64 -7211198353767973908, i64 500, i64 -3574436251470806727, i64 200, i64 6288809125658696740, i64 200, i64 12345678, i64 100}
!10 = !{!"VP", i32 0, i64 1600, i64 3827408714133779784, i64 600, i64 5837445539218476403, i64 500, i64 -9064955852395570538, i64 400,  i64 56781234, i64 100}
;.
; VTABLE-COMMON: [[PROF9]] = !{!"VP", i32 2, i64 100, i64 12345678, i64 100}
; VTABLE-COMMON: [[PROF10]] = !{!"branch_weights", i32 600, i32 1000}
; VTABLE-COMMON: [[PROF11]] = !{!"branch_weights", i32 500, i32 500}
; VTABLE-COMMON: [[PROF12]] = !{!"branch_weights", i32 400, i32 100}