landingpad.ll
4.63 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
; RUN: opt < %s -pgo-instr-gen -S | FileCheck %s --check-prefix=GEN
; RUN: opt < %s -passes=pgo-instr-gen -S | FileCheck %s --check-prefix=GEN
; RUN: llvm-profdata merge %S/Inputs/landingpad.proftext -o %t.profdata
; RUN: opt < %s -pgo-instr-use -pgo-test-profile-file=%t.profdata -S | FileCheck %s --check-prefix=USE
; RUN: opt < %s -passes=pgo-instr-use -pgo-test-profile-file=%t.profdata -S | FileCheck %s --check-prefix=USE
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"
@val = global i32 0, align 4
@_ZTIi = external constant i8*
; GEN: $__llvm_profile_raw_version = comdat any
; GEN: @__llvm_profile_raw_version = constant i64 {{[0-9]+}}, comdat
; GEN: @__profn_bar = private constant [3 x i8] c"bar"
; GEN: @__profn_foo = private constant [3 x i8] c"foo"
define i32 @bar(i32 %i) {
entry:
; GEN: entry:
; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @__profn_bar, i32 0, i32 0), i64 24868915205, i32 2, i32 0)
%rem = srem i32 %i, 3
%tobool = icmp ne i32 %rem, 0
br i1 %tobool, label %if.then, label %if.end
; USE: br i1 %tobool, label %if.then, label %if.end
; USE-SAME: !prof ![[BW_BAR_ENTRY:[0-9]+]]
if.then:
; GEN: if.then:
; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @__profn_bar, i32 0, i32 0), i64 24868915205, i32 2, i32 1)
%exception = call i8* @__cxa_allocate_exception(i64 4)
%tmp = bitcast i8* %exception to i32*
store i32 %i, i32* %tmp, align 16
call void @__cxa_throw(i8* %exception, i8* bitcast (i8** @_ZTIi to i8*), i8* null)
unreachable
if.end:
; GEN: if.end:
; GEN-NOT: call void @llvm.instrprof.increment
; GEN: ret i32
ret i32 0
}
declare i8* @__cxa_allocate_exception(i64)
declare void @__cxa_throw(i8*, i8*, i8*)
define i32 @foo(i32 %i) personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
entry:
; GEN: entry:
; GEN-NOT: call void @llvm.instrprof.increment
%rem = srem i32 %i, 2
%tobool = icmp ne i32 %rem, 0
br i1 %tobool, label %if.then, label %if.end
; USE: br i1 %tobool, label %if.then, label %if.end
; USE-SAME: !prof ![[BW_FOO_ENTRY:[0-9]+]]
if.then:
; GEN: if.then:
; GEN-NOT: call void @llvm.instrprof.increment
%mul = mul nsw i32 %i, 7
%call = invoke i32 @bar(i32 %mul)
to label %invoke.cont unwind label %lpad
invoke.cont:
; GEN: invoke.cont:
; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @__profn_foo, i32 0, i32 0), i64 59130013419, i32 4, i32 1)
br label %if.end
lpad:
; GEN: lpad:
; GEN-NOT: call void @llvm.instrprof.increment
%tmp = landingpad { i8*, i32 }
catch i8* bitcast (i8** @_ZTIi to i8*)
%tmp1 = extractvalue { i8*, i32 } %tmp, 0
%tmp2 = extractvalue { i8*, i32 } %tmp, 1
br label %catch.dispatch
catch.dispatch:
; GEN: catch.dispatch:
; GEN-NOT: call void @llvm.instrprof.increment
%tmp3 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
%matches = icmp eq i32 %tmp2, %tmp3
br i1 %matches, label %catch, label %eh.resume
; USE: br i1 %matches, label %catch, label %eh.resume
; USE-SAME: !prof ![[BW_CATCH_DISPATCH:[0-9]+]]
catch:
; GEN: catch:
; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @__profn_foo, i32 0, i32 0), i64 59130013419, i32 4, i32 2)
%tmp4 = call i8* @__cxa_begin_catch(i8* %tmp1)
%tmp5 = bitcast i8* %tmp4 to i32*
%tmp6 = load i32, i32* %tmp5, align 4
%tmp7 = load i32, i32* @val, align 4
%sub = sub nsw i32 %tmp7, %tmp6
store i32 %sub, i32* @val, align 4
call void @__cxa_end_catch()
br label %try.cont
try.cont:
; GEN: try.cont:
; GEN-NOT: call void @llvm.instrprof.increment
ret i32 -1
if.end:
; GEN: if.end:
; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @__profn_foo, i32 0, i32 0), i64 59130013419, i32 4, i32 0)
%tmp8 = load i32, i32* @val, align 4
%add = add nsw i32 %tmp8, %i
store i32 %add, i32* @val, align 4
br label %try.cont
eh.resume:
; GEN: eh.resume:
; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @__profn_foo, i32 0, i32 0), i64 59130013419, i32 4, i32 3)
%lpad.val = insertvalue { i8*, i32 } undef, i8* %tmp1, 0
%lpad.val3 = insertvalue { i8*, i32 } %lpad.val, i32 %tmp2, 1
resume { i8*, i32 } %lpad.val3
}
declare i32 @__gxx_personality_v0(...)
declare i32 @llvm.eh.typeid.for(i8*)
declare i8* @__cxa_begin_catch(i8*)
declare void @__cxa_end_catch()
; USE: ![[BW_BAR_ENTRY]] = !{!"branch_weights", i32 2, i32 1}
; USE: ![[BW_FOO_ENTRY]] = !{!"branch_weights", i32 3, i32 2}
; USE: ![[BW_CATCH_DISPATCH]] = !{!"branch_weights", i32 2, i32 0}