1; REQUIRES: x86-registered-target
2
3; Test CFI through the thin link and backend.
4
5; RUN: opt -thinlto-bc -thinlto-split-lto-unit -o %t.o %s
6
7; Legacy PM
8; RUN: llvm-lto2 run -save-temps %t.o \
9; RUN:   -o %t3 \
10; RUN:   -r=%t.o,test,px \
11; RUN:   -r=%t.o,_ZTV1B, \
12; RUN:   -r=%t.o,_ZN1B1fEi, \
13; RUN:   -r=%t.o,_ZTV1B,px
14; RUN: llvm-dis %t3.1.4.opt.bc -o - | FileCheck %s --check-prefix=CHECK-IR
15
16; New PM
17; RUN: llvm-lto2 run -save-temps %t.o -use-new-pm \
18; RUN:   -o %t3 \
19; RUN:   -r=%t.o,test,px \
20; RUN:   -r=%t.o,_ZTV1B, \
21; RUN:   -r=%t.o,_ZN1B1fEi, \
22; RUN:   -r=%t.o,_ZTV1B,px
23; RUN: llvm-dis %t3.1.4.opt.bc -o - | FileCheck %s --check-prefix=CHECK-IR
24
25target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
26target triple = "x86_64-grtev4-linux-gnu"
27
28%struct.B = type { %struct.A }
29%struct.A = type { i32 (...)** }
30
31@_ZTV1B = constant { [3 x i8*] } { [3 x i8*] [i8* undef, i8* undef, i8* undef] }, !type !0
32
33; CHECK-IR-LABEL: define void @test
34define void @test(i8* %b) {
35entry:
36  ; Ensure that traps are conditional. Invalid TYPE_ID can cause
37  ; unconditional traps.
38  ; CHECK-IR: br i1 {{.*}}, label %trap
39  %0 = bitcast i8* %b to i8**
40  %vtable2 = load i8*, i8** %0
41  %1 = tail call i1 @llvm.type.test(i8* %vtable2, metadata !"_ZTS1A")
42  br i1 %1, label %cont, label %trap
43
44trap:
45  tail call void @llvm.trap()
46  unreachable
47
48cont:
49  ; CHECK-IR-LABEL: ret void
50  ret void
51}
52; CHECK-IR-LABEL: }
53
54declare i1 @llvm.type.test(i8*, metadata)
55declare void @llvm.trap()
56
57declare i32 @_ZN1B1fEi(%struct.B* %this, i32 %a)
58
59!0 = !{i64 16, !"_ZTS1A"}
60!1 = !{i64 16, !"_ZTS1B"}
61