| ; REQUIRES: x86-registered-target |
| |
| ; Test CFI through the thin link and backend. |
| |
| ; RUN: opt -thinlto-bc -thinlto-split-lto-unit -o %t.o %s |
| |
| ; Legacy PM |
| ; RUN: llvm-lto2 run -save-temps %t.o \ |
| ; RUN: -o %t3 \ |
| ; RUN: -r=%t.o,test,px \ |
| ; RUN: -r=%t.o,_ZTV1B, \ |
| ; RUN: -r=%t.o,_ZN1B1fEi, \ |
| ; RUN: -r=%t.o,_ZTV1B,px |
| ; RUN: llvm-dis %t3.1.4.opt.bc -o - | FileCheck %s --check-prefix=CHECK-IR |
| |
| ; New PM |
| ; RUN: llvm-lto2 run -save-temps %t.o -use-new-pm \ |
| ; RUN: -o %t3 \ |
| ; RUN: -r=%t.o,test,px \ |
| ; RUN: -r=%t.o,_ZTV1B, \ |
| ; RUN: -r=%t.o,_ZN1B1fEi, \ |
| ; RUN: -r=%t.o,_ZTV1B,px |
| ; RUN: llvm-dis %t3.1.4.opt.bc -o - | FileCheck %s --check-prefix=CHECK-IR |
| |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-grtev4-linux-gnu" |
| |
| %struct.B = type { %struct.A } |
| %struct.A = type { i32 (...)** } |
| |
| @_ZTV1B = constant { [3 x i8*] } { [3 x i8*] [i8* undef, i8* undef, i8* undef] }, !type !0 |
| |
| ; CHECK-IR-LABEL: define void @test |
| define void @test(i8* %b) { |
| entry: |
| ; Ensure that traps are conditional. Invalid TYPE_ID can cause |
| ; unconditional traps. |
| ; CHECK-IR: br i1 {{.*}}, label %trap |
| %0 = bitcast i8* %b to i8** |
| %vtable2 = load i8*, i8** %0 |
| %1 = tail call i1 @llvm.type.test(i8* %vtable2, metadata !"_ZTS1A") |
| br i1 %1, label %cont, label %trap |
| |
| trap: |
| tail call void @llvm.trap() |
| unreachable |
| |
| cont: |
| ; CHECK-IR-LABEL: ret void |
| ret void |
| } |
| ; CHECK-IR-LABEL: } |
| |
| declare i1 @llvm.type.test(i8*, metadata) |
| declare void @llvm.trap() |
| |
| declare i32 @_ZN1B1fEi(%struct.B* %this, i32 %a) |
| |
| !0 = !{i64 16, !"_ZTS1A"} |
| !1 = !{i64 16, !"_ZTS1B"} |