forked from OSchip/llvm-project
51 lines
1.3 KiB
LLVM
51 lines
1.3 KiB
LLVM
; REQUIRES: x86-registered-target
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; Test CFI through the thin link and backend.
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; RUN: opt -thinlto-bc -thinlto-split-lto-unit -o %t.o %s
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; RUN: llvm-lto2 run -save-temps %t.o \
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; RUN: -o %t3 \
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; RUN: -r=%t.o,test,px \
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; RUN: -r=%t.o,_ZTV1B, \
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; RUN: -r=%t.o,_ZN1B1fEi, \
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; RUN: -r=%t.o,_ZTV1B,px
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; RUN: llvm-dis %t3.1.4.opt.bc -o - | FileCheck %s --check-prefix=CHECK-IR
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-grtev4-linux-gnu"
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%struct.B = type { %struct.A }
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%struct.A = type { i32 (...)** }
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@_ZTV1B = constant { [3 x i8*] } { [3 x i8*] [i8* undef, i8* undef, i8* undef] }, !type !0
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; CHECK-IR-LABEL: define void @test
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define void @test(i8* %b) {
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entry:
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; Ensure that traps are conditional. Invalid TYPE_ID can cause
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; unconditional traps.
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; CHECK-IR: br i1 {{.*}}, label %trap
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%0 = bitcast i8* %b to i8**
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%vtable2 = load i8*, i8** %0
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%1 = tail call i1 @llvm.type.test(i8* %vtable2, metadata !"_ZTS1A")
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br i1 %1, label %cont, label %trap
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trap:
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tail call void @llvm.trap()
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unreachable
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cont:
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; CHECK-IR-LABEL: ret void
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ret void
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}
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; CHECK-IR-LABEL: }
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declare i1 @llvm.type.test(i8*, metadata)
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declare void @llvm.trap()
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declare i32 @_ZN1B1fEi(%struct.B* %this, i32 %a)
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!0 = !{i64 16, !"_ZTS1A"}
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!1 = !{i64 16, !"_ZTS1B"}
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