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gerrit-public.fairphone.software / toolchain / llvm-project / 184773d81febbf1428aa98498beef844ce0d142f / . / llvm / test / Transforms / WholeProgramDevirt / virtual-const-prop-check.ll
blob: 3299f7bce65bca82c939e8afd43a6fbc2ec83d10 [file] [log] [blame]
Ivan Krasin54746452016-07-12 02:38:37 +0000[diff] [blame]1; RUN: opt -S -wholeprogramdevirt -pass-remarks=wholeprogramdevirt %s 2>&1 | FileCheck %s
Peter Collingbourne0312f612016-06-25 00:23:04 +0000[diff] [blame]2
3target datalayout = "e-p:64:64"
4target triple = "x86_64-unknown-linux-gnu"
5
Ivan Krasinf3403fd2016-08-11 19:09:02 +0000[diff] [blame]6; CHECK: remark: <unknown>:0:0: virtual-const-prop: devirtualized a call to vf1i32
7; CHECK: remark: <unknown>:0:0: virtual-const-prop-1-bit: devirtualized a call to vf1i1
8; CHECK: remark: <unknown>:0:0: virtual-const-prop-1-bit: devirtualized a call to vf0i1
9; CHECK: remark: <unknown>:0:0: devirtualized vf0i1
10; CHECK: remark: <unknown>:0:0: devirtualized vf1i1
Ivan Krasinb05e06e2016-08-05 19:45:16 +0000[diff] [blame]11; CHECK: remark: <unknown>:0:0: devirtualized vf1i32
12; CHECK: remark: <unknown>:0:0: devirtualized vf2i32
13; CHECK: remark: <unknown>:0:0: devirtualized vf3i32
14; CHECK: remark: <unknown>:0:0: devirtualized vf4i32
Ivan Krasinf3403fd2016-08-11 19:09:02 +0000[diff] [blame]15; CHECK-NOT: devirtualized
Ivan Krasin54746452016-07-12 02:38:37 +0000[diff] [blame]16
Peter Collingbourne0312f612016-06-25 00:23:04 +0000[diff] [blame]17; CHECK: [[VT1DATA:@[^ ]*]] = private constant { [8 x i8], [3 x i8*], [0 x i8] } { [8 x i8] c"\00\00\00\01\01\00\00\00", [3 x i8*] [i8* bitcast (i1 (i8*)* @vf0i1 to i8*), i8* bitcast (i1 (i8*)* @vf1i1 to i8*), i8* bitcast (i32 (i8*)* @vf1i32 to i8*)], [0 x i8] zeroinitializer }, section "vt1sec", !type [[T8:![0-9]+]]
18@vt1 = constant [3 x i8*] [
19i8* bitcast (i1 (i8*)* @vf0i1 to i8*),
20i8* bitcast (i1 (i8*)* @vf1i1 to i8*),
21i8* bitcast (i32 (i8*)* @vf1i32 to i8*)
22], section "vt1sec", !type !0
23
24; CHECK: [[VT2DATA:@[^ ]*]] = private constant { [8 x i8], [3 x i8*], [0 x i8] } { [8 x i8] c"\00\00\00\02\02\00\00\00", [3 x i8*] [i8* bitcast (i1 (i8*)* @vf1i1 to i8*), i8* bitcast (i1 (i8*)* @vf0i1 to i8*), i8* bitcast (i32 (i8*)* @vf2i32 to i8*)], [0 x i8] zeroinitializer }, !type [[T8]]
25@vt2 = constant [3 x i8*] [
26i8* bitcast (i1 (i8*)* @vf1i1 to i8*),
27i8* bitcast (i1 (i8*)* @vf0i1 to i8*),
28i8* bitcast (i32 (i8*)* @vf2i32 to i8*)
29], !type !0
30
31; CHECK: [[VT3DATA:@[^ ]*]] = private constant { [8 x i8], [3 x i8*], [0 x i8] } { [8 x i8] c"\00\00\00\01\03\00\00\00", [3 x i8*] [i8* bitcast (i1 (i8*)* @vf0i1 to i8*), i8* bitcast (i1 (i8*)* @vf1i1 to i8*), i8* bitcast (i32 (i8*)* @vf3i32 to i8*)], [0 x i8] zeroinitializer }, !type [[T8]]
32@vt3 = constant [3 x i8*] [
33i8* bitcast (i1 (i8*)* @vf0i1 to i8*),
34i8* bitcast (i1 (i8*)* @vf1i1 to i8*),
35i8* bitcast (i32 (i8*)* @vf3i32 to i8*)
36], !type !0
37
38; CHECK: [[VT4DATA:@[^ ]*]] = private constant { [8 x i8], [3 x i8*], [0 x i8] } { [8 x i8] c"\00\00\00\02\04\00\00\00", [3 x i8*] [i8* bitcast (i1 (i8*)* @vf1i1 to i8*), i8* bitcast (i1 (i8*)* @vf0i1 to i8*), i8* bitcast (i32 (i8*)* @vf4i32 to i8*)], [0 x i8] zeroinitializer }, !type [[T8]]
39@vt4 = constant [3 x i8*] [
40i8* bitcast (i1 (i8*)* @vf1i1 to i8*),
41i8* bitcast (i1 (i8*)* @vf0i1 to i8*),
42i8* bitcast (i32 (i8*)* @vf4i32 to i8*)
43], !type !0
44
45; CHECK: @vt5 = {{.*}}, !type [[T0:![0-9]+]]
46@vt5 = constant [3 x i8*] [
47i8* bitcast (void ()* @__cxa_pure_virtual to i8*),
48i8* bitcast (void ()* @__cxa_pure_virtual to i8*),
49i8* bitcast (void ()* @__cxa_pure_virtual to i8*)
50], !type !0
51
52; CHECK: @vt1 = alias [3 x i8*], getelementptr inbounds ({ [8 x i8], [3 x i8*], [0 x i8] }, { [8 x i8], [3 x i8*], [0 x i8] }* [[VT1DATA]], i32 0, i32 1)
53; CHECK: @vt2 = alias [3 x i8*], getelementptr inbounds ({ [8 x i8], [3 x i8*], [0 x i8] }, { [8 x i8], [3 x i8*], [0 x i8] }* [[VT2DATA]], i32 0, i32 1)
54; CHECK: @vt3 = alias [3 x i8*], getelementptr inbounds ({ [8 x i8], [3 x i8*], [0 x i8] }, { [8 x i8], [3 x i8*], [0 x i8] }* [[VT3DATA]], i32 0, i32 1)
55; CHECK: @vt4 = alias [3 x i8*], getelementptr inbounds ({ [8 x i8], [3 x i8*], [0 x i8] }, { [8 x i8], [3 x i8*], [0 x i8] }* [[VT4DATA]], i32 0, i32 1)
56
57define i1 @vf0i1(i8* %this) readnone {
58 ret i1 0
59}
60
61define i1 @vf1i1(i8* %this) readnone {
62 ret i1 1
63}
64
65define i32 @vf1i32(i8* %this) readnone {
66 ret i32 1
67}
68
69define i32 @vf2i32(i8* %this) readnone {
70 ret i32 2
71}
72
73define i32 @vf3i32(i8* %this) readnone {
74 ret i32 3
75}
76
77define i32 @vf4i32(i8* %this) readnone {
78 ret i32 4
79}
80
81; CHECK: define i1 @call1(
82define i1 @call1(i8* %obj) {
83 %vtableptr = bitcast i8* %obj to [3 x i8*]**
84 %vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr
85 ; CHECK: [[VT1:%[^ ]*]] = bitcast [3 x i8*]* {{.*}} to i8*
86 %vtablei8 = bitcast [3 x i8*]* %vtable to i8*
87 %pair = call {i8*, i1} @llvm.type.checked.load(i8* %vtablei8, i32 0, metadata !"typeid")
88 %fptr = extractvalue {i8*, i1} %pair, 0
89 %fptr_casted = bitcast i8* %fptr to i1 (i8*)*
Peter Collingbourne184773d2017-02-17 19:43:45 +0000[diff] [blame^]90 ; CHECK: [[VTGEP1:%[^ ]*]] = getelementptr i8, i8* [[VT1]], i32 -5
Peter Collingbourne0312f612016-06-25 00:23:04 +0000[diff] [blame]91 ; CHECK: [[VTLOAD1:%[^ ]*]] = load i8, i8* [[VTGEP1]]
92 ; CHECK: [[VTAND1:%[^ ]*]] = and i8 [[VTLOAD1]], 2
93 ; CHECK: [[VTCMP1:%[^ ]*]] = icmp ne i8 [[VTAND1]], 0
94 %result = call i1 %fptr_casted(i8* %obj)
95 ; CHECK: [[AND1:%[^ ]*]] = and i1 [[VTCMP1]], true
96 %p = extractvalue {i8*, i1} %pair, 1
97 %and = and i1 %result, %p
98 ; CHECK: ret i1 [[AND1]]
99 ret i1 %and
100}
101
102; CHECK: define i1 @call2(
103define i1 @call2(i8* %obj) {
104 %vtableptr = bitcast i8* %obj to [3 x i8*]**
105 %vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr
106 ; CHECK: [[VT2:%[^ ]*]] = bitcast [3 x i8*]* {{.*}} to i8*
107 %vtablei8 = bitcast [3 x i8*]* %vtable to i8*
108 %pair = call {i8*, i1} @llvm.type.checked.load(i8* %vtablei8, i32 8, metadata !"typeid")
109 %fptr = extractvalue {i8*, i1} %pair, 0
110 %fptr_casted = bitcast i8* %fptr to i1 (i8*)*
Peter Collingbourne184773d2017-02-17 19:43:45 +0000[diff] [blame^]111 ; CHECK: [[VTGEP2:%[^ ]*]] = getelementptr i8, i8* [[VT2]], i32 -5
Peter Collingbourne0312f612016-06-25 00:23:04 +0000[diff] [blame]112 ; CHECK: [[VTLOAD2:%[^ ]*]] = load i8, i8* [[VTGEP2]]
113 ; CHECK: [[VTAND2:%[^ ]*]] = and i8 [[VTLOAD2]], 1
114 ; CHECK: [[VTCMP2:%[^ ]*]] = icmp ne i8 [[VTAND2]], 0
115 %result = call i1 %fptr_casted(i8* %obj)
116 ; CHECK: [[AND2:%[^ ]*]] = and i1 [[VTCMP2]], true
117 %p = extractvalue {i8*, i1} %pair, 1
118 %and = and i1 %result, %p
119 ; CHECK: ret i1 [[AND2]]
120 ret i1 %and
121}
122
123; CHECK: define i32 @call3(
124define i32 @call3(i8* %obj) {
125 %vtableptr = bitcast i8* %obj to [3 x i8*]**
126 %vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr
127 ; CHECK: [[VT3:%[^ ]*]] = bitcast [3 x i8*]* {{.*}} to i8*
128 %vtablei8 = bitcast [3 x i8*]* %vtable to i8*
129 %pair = call {i8*, i1} @llvm.type.checked.load(i8* %vtablei8, i32 16, metadata !"typeid")
130 %fptr = extractvalue {i8*, i1} %pair, 0
131 %fptr_casted = bitcast i8* %fptr to i32 (i8*)*
Peter Collingbourne184773d2017-02-17 19:43:45 +0000[diff] [blame^]132 ; CHECK: [[VTGEP3:%[^ ]*]] = getelementptr i8, i8* [[VT3]], i32 -4
Peter Collingbourne0312f612016-06-25 00:23:04 +0000[diff] [blame]133 ; CHECK: [[VTBC3:%[^ ]*]] = bitcast i8* [[VTGEP3]] to i32*
134 ; CHECK: [[VTLOAD3:%[^ ]*]] = load i32, i32* [[VTBC3]]
135 %result = call i32 %fptr_casted(i8* %obj)
136 ; CHECK: ret i32 [[VTLOAD3]]
137 ret i32 %result
138}
139
140declare {i8*, i1} @llvm.type.checked.load(i8*, i32, metadata)
141declare void @llvm.assume(i1)
142declare void @__cxa_pure_virtual()
143
144; CHECK: [[T8]] = !{i32 8, !"typeid"}
145; CHECK: [[T0]] = !{i32 0, !"typeid"}
146
147!0 = !{i32 0, !"typeid"}