derek.holloway
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23 lines
802 B
C++
23 lines
802 B
C++
// RUN: %clang_cc1 -flto -flto-unit -triple x86_64-unknown-linux -fvisibility=hidden -fsanitize=cfi-vcall,signed-integer-overflow -fsanitize-trap=cfi-vcall,signed-integer-overflow -fsanitize-trap-loop -emit-llvm -o - %s | FileCheck %s
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struct A {
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virtual void f();
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};
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void vcall(A *a) {
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// CHECK: [[TEST:%.*]] = call i1 @llvm.type.test
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// CHECK-NEXT: br i1 [[TEST]], label %cont, label %trap
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// CHECK: trap:
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// CHECK-NEXT: call void @llvm.looptrap()
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a->f();
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}
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int overflow(int a, int b) {
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// CHECK: [[OVERFLOW:%.*]] = extractvalue { i32, i1 } %2, 1, !nosanitize
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// CHECK-NEXT: [[NOTOVERFLOW:%.*]] = xor i1 [[OVERFLOW]], true, !nosanitize
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// CHECK-NEXT: br i1 [[NOTOVERFLOW]], label %cont, label %trap
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// CHECK: trap:
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// CHECK-NEXT: call void @llvm.looptrap()
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return a + b;
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}
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