derek.holloway
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37 lines
1.7 KiB
C++
37 lines
1.7 KiB
C++
// RUN: %clang_cc1 -triple x86_64-unknown-linux -fsanitize=cfi-mfcall -fsanitize-trap=cfi-mfcall -fvisibility=hidden -emit-llvm -o - %s | FileCheck %s
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// RUN: %clang_cc1 -triple x86_64-unknown-linux -fsanitize=cfi-mfcall -fsanitize-trap=cfi-mfcall -fvisibility=default -emit-llvm -o - %s | FileCheck --check-prefix=DEFAULT %s
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// With -fwhole-program-vtables we should get the member function pointer type
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// test, even without hidden visibility.
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// RUN: %clang_cc1 -triple x86_64-unknown-linux -fwhole-program-vtables -emit-llvm -o - %s | FileCheck %s --check-prefix=WPV
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struct B1 {};
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struct B2 {};
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struct B3 : B2 {};
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struct S : B1, B3 {};
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// DEFAULT-NOT: llvm.type.test
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// DEFAULT-NOT: llvm.public.type.test
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void f(S *s, void (S::*p)()) {
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// WPV: [[OFFSET:%.*]] = sub i64 {{.*}}, 1
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// WPV: [[VFPTR:%.*]] = getelementptr i8, ptr %{{.*}}, i64 [[OFFSET]]
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// WPV: [[TT:%.*]] = call i1 @llvm.public.type.test(ptr [[VFPTR]], metadata !"_ZTSM1SFvvE.virtual")
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// CHECK: [[OFFSET:%.*]] = sub i64 {{.*}}, 1
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// CHECK: [[VFPTR:%.*]] = getelementptr i8, ptr %{{.*}}, i64 [[OFFSET]]
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// CHECK: [[TT:%.*]] = call i1 @llvm.type.test(ptr [[VFPTR]], metadata !"_ZTSM1SFvvE.virtual")
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// CHECK: br i1 [[TT]], label {{.*}}, label %[[TRAP1:[^,]*]]
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// CHECK: [[TRAP1]]:
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// CHECK-NEXT: llvm.ubsantrap
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// CHECK: [[TT1:%.*]] = call i1 @llvm.type.test(ptr {{.*}}, metadata !"_ZTSM2B1FvvE")
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// CHECK: [[OR1:%.*]] = or i1 false, [[TT1]]
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// CHECK: [[TT2:%.*]] = call i1 @llvm.type.test(ptr {{.*}}, metadata !"_ZTSM2B2FvvE")
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// CHECK: [[OR2:%.*]] = or i1 [[OR1]], [[TT2]]
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// CHECK: br i1 [[OR2]], label {{.*}}, label %[[TRAP2:[^,]*]]
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// CHECK: [[TRAP2]]:
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// CHECK-NEXT: llvm.ubsantrap
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(s->*p)();
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}
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