derek.holloway
7502bf64a4
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120 lines
6.5 KiB
C++
120 lines
6.5 KiB
C++
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-cir %s -o %t.cir
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// RUN: FileCheck --input-file=%t.cir %s -check-prefix=CIR
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// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm %s -o %t.ll
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// RUN: FileCheck --input-file=%t.ll %s -check-prefix=LLVM
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// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm %s -o %t.ll
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// RUN: FileCheck --input-file=%t.ll %s -check-prefix=OGCG
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// __builtin_launder doesn't actually DO anything unless fstrict-vtable-pointers
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// is enabled, so test here to make sure we get that switch correctly done.
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// RUN: %clang_cc1 -fstrict-vtable-pointers -triple x86_64-unknown-linux-gnu -fclangir -emit-cir %s -o %t.cir
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// RUN: FileCheck --input-file=%t.cir %s -check-prefix=CIR-STRICT
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// RUN: %clang_cc1 -fstrict-vtable-pointers -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm %s -o %t.ll
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// RUN: FileCheck --input-file=%t.ll %s -check-prefix=LLVM-STRICT
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// RUN: %clang_cc1 -fstrict-vtable-pointers -triple x86_64-unknown-linux-gnu -emit-llvm %s -o %t.ll
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// RUN: FileCheck --input-file=%t.ll %s -check-prefix=OGCG-STRICT
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struct Base {};
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struct Derived : virtual Base {};
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struct VirtMem {
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Derived d;
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};
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auto use_derived(Derived *d) {
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return __builtin_launder(d);
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}
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// CIR-LABEL: cir.func{{.*}}@_Z11use_derivedP7Derived
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// CIR: %[[ARG_ALLOCA:.*]] = cir.alloca !cir.ptr<!rec_Derived>, !cir.ptr<!cir.ptr<!rec_Derived>>, ["d", init]
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// CIR: %[[RET_ALLOCA:.*]] = cir.alloca !cir.ptr<!rec_Derived>, !cir.ptr<!cir.ptr<!rec_Derived>>, ["__retval"]
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// CIR: %[[ARG_LOAD:.*]] = cir.load align(8) %[[ARG_ALLOCA]] : !cir.ptr<!cir.ptr<!rec_Derived>>, !cir.ptr<!rec_Derived>
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// CIR: cir.store %[[ARG_LOAD]], %[[RET_ALLOCA]] : !cir.ptr<!rec_Derived>, !cir.ptr<!cir.ptr<!rec_Derived>>
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// CIR: %[[RET:.*]] = cir.load %[[RET_ALLOCA]] : !cir.ptr<!cir.ptr<!rec_Derived>>, !cir.ptr<!rec_Derived>
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// CIR: cir.return %[[RET]] : !cir.ptr<!rec_Derived>
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//
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// LLVM-LABEL: define {{.*}}@_Z11use_derivedP7Derived
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// LLVM: %[[ARG_ALLOCA:.*]] = alloca ptr
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// LLVM: %[[RET_ALLOCA:.*]] = alloca ptr
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// LLVM: %[[ARG_LOAD:.*]] = load ptr, ptr %[[ARG_ALLOCA]]
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// LLVM: store ptr %[[ARG_LOAD]], ptr %[[RET_ALLOCA]]
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// LLVM: %[[RET:.*]] = load ptr, ptr %[[RET_ALLOCA]]
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// LLVM: ret ptr %[[RET]]
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//
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// OGCG-LABEL: define {{.*}}@_Z11use_derivedP7Derived
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// OGCG: %[[ARG_ALLOCA:.*]] = alloca ptr
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// OGCG: %[[ARG_LOAD:.*]] = load ptr, ptr %[[ARG_ALLOCA]]
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// OGCG: ret ptr %[[ARG_LOAD]]
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//
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// CIR-STRICT-LABEL: cir.func{{.*}}@_Z11use_derivedP7Derived
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// CIR-STRICT: %[[ARG_ALLOCA:.*]] = cir.alloca !cir.ptr<!rec_Derived>, !cir.ptr<!cir.ptr<!rec_Derived>>, ["d", init]
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// CIR-STRICT: %[[RET_ALLOCA:.*]] = cir.alloca !cir.ptr<!rec_Derived>, !cir.ptr<!cir.ptr<!rec_Derived>>, ["__retval"]
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// CIR-STRICT: %[[LOAD_ARG:.*]] = cir.load align(8) %[[ARG_ALLOCA]] : !cir.ptr<!cir.ptr<!rec_Derived>>, !cir.ptr<!rec_Derived>
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// CIR-STRICT: %[[LAUNDER:.*]] = cir.launder %[[LOAD_ARG]] : !cir.ptr<!rec_Derived>
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// CIR-STRICT: cir.store %[[LAUNDER]], %[[RET_ALLOCA]] : !cir.ptr<!rec_Derived>, !cir.ptr<!cir.ptr<!rec_Derived>>
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// CIR-STRICT: %[[RET:.*]] = cir.load %[[RET_ALLOCA]] : !cir.ptr<!cir.ptr<!rec_Derived>>, !cir.ptr<!rec_Derived>
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// CIR-STRICT: cir.return %[[RET]] : !cir.ptr<!rec_Derived>
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//
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// LLVM-STRICT-LABEL: define {{.*}}@_Z11use_derivedP7Derived
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// LLVM-STRICT: %[[ARG_ALLOCA:.*]] = alloca ptr
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// LLVM-STRICT: %[[RET_ALLOCA:.*]] = alloca ptr
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// LLVM-STRICT: %[[ARG_LOAD:.*]] = load ptr, ptr %[[ARG_ALLOCA]]
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// LLVM-STRICT: %[[LAUNDER:.*]] = call ptr @llvm.launder.invariant.group.p0(ptr %[[ARG_LOAD]])
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// LLVM-STRICT: store ptr %[[LAUNDER]], ptr %[[RET_ALLOCA]]
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// LLVM-STRICT: %[[RET:.*]] = load ptr, ptr %[[RET_ALLOCA]]
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// LLVM-STRICT: ret ptr %[[RET]]
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//
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//
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// OGCG-STRICT-LABEL: define {{.*}}@_Z11use_derivedP7Derived
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// OGCG-STRICT: %[[ARG_ALLOCA:.*]] = alloca ptr
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// OGCG-STRICT: %[[ARG_LOAD:.*]] = load ptr, ptr %[[ARG_ALLOCA]]
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// OGCG-STRICT: %[[LAUNDER:.*]] = call ptr @llvm.launder.invariant.group.p0(ptr %[[ARG_LOAD]])
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// OGCG-STRICT: ret ptr %[[LAUNDER]]
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auto use_vm(VirtMem *vm) {
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return __builtin_launder(vm);
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}
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// CIR-LABEL: cir.func {{.*}}@_Z6use_vmP7VirtMem
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// CIR: %[[ARG_ALLOCA:.*]] = cir.alloca !cir.ptr<!rec_VirtMem>, !cir.ptr<!cir.ptr<!rec_VirtMem>>, ["vm", init]
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// CIR: %[[RET_ALLOCA:.*]] = cir.alloca !cir.ptr<!rec_VirtMem>, !cir.ptr<!cir.ptr<!rec_VirtMem>>, ["__retval"]
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// CIR: cir.store %[[ARG_LOAD]], %[[RET_ALLOCA]] : !cir.ptr<!rec_VirtMem>, !cir.ptr<!cir.ptr<!rec_VirtMem>>
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// CIR: %[[RET:.*]] = cir.load %[[RET_ALLOCA]] : !cir.ptr<!cir.ptr<!rec_VirtMem>>, !cir.ptr<!rec_VirtMem>
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// CIR: cir.return %[[RET]] : !cir.ptr<!rec_VirtMem>
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//
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// LLVM-LABEL: define {{.*}}@_Z6use_vmP7VirtMem
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// LLVM: %[[ARG_ALLOCA:.*]] = alloca ptr
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// LLVM: %[[RET_ALLOCA:.*]] = alloca ptr
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// LLVM: %[[ARG_LOAD:.*]] = load ptr, ptr %[[ARG_ALLOCA]]
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// LLVM: store ptr %[[ARG_LOAD]], ptr %[[RET_ALLOCA]]
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// LLVM: %[[RET:.*]] = load ptr, ptr %[[RET_ALLOCA]]
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// LLVM: ret ptr %[[RET]]
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//
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// OGCG-LABEL: define {{.*}}@_Z6use_vmP7VirtMem
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// OGCG: %[[ARG_ALLOCA:.*]] = alloca ptr
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// OGCG: %[[ARG_LOAD:.*]] = load ptr, ptr %[[ARG_ALLOCA]]
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// OGCG: ret ptr %[[ARG_LOAD]]
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//
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// CIR-STRICT-LABEL: cir.func {{.*}}@_Z6use_vmP7VirtMem
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// CIR-STRICT: %[[ARG_ALLOCA:.*]] = cir.alloca !cir.ptr<!rec_VirtMem>, !cir.ptr<!cir.ptr<!rec_VirtMem>>, ["vm", init]
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// CIR-STRICT: %[[RET_ALLOCA:.*]] = cir.alloca !cir.ptr<!rec_VirtMem>, !cir.ptr<!cir.ptr<!rec_VirtMem>>, ["__retval"]
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// CIR-STRICT: %[[LOAD_ARG:.*]] = cir.load align(8) %[[ARG_ALLOCA]] : !cir.ptr<!cir.ptr<!rec_VirtMem>>, !cir.ptr<!rec_VirtMem>
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// CIR-STRICT: %[[LAUNDER:.*]] = cir.launder %[[LOAD_ARG]] : !cir.ptr<!rec_VirtMem>
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// CIR-STRICT: cir.store %[[LAUNDER]], %[[RET_ALLOCA]] : !cir.ptr<!rec_VirtMem>, !cir.ptr<!cir.ptr<!rec_VirtMem>>
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// CIR-STRICT: %[[RET:.*]] = cir.load %[[RET_ALLOCA]] : !cir.ptr<!cir.ptr<!rec_VirtMem>>, !cir.ptr<!rec_VirtMem>
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// CIR-STRICT: cir.return %[[RET]] : !cir.ptr<!rec_VirtMem>
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//
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// LLVM-STRICT-LABEL: define {{.*}}@_Z6use_vmP7VirtMem
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// LLVM-STRICT: %[[ARG_ALLOCA:.*]] = alloca ptr
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// LLVM-STRICT: %[[RET_ALLOCA:.*]] = alloca ptr
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// LLVM-STRICT: %[[ARG_LOAD:.*]] = load ptr, ptr %[[ARG_ALLOCA]]
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// LLVM-STRICT: %[[LAUNDER:.*]] = call ptr @llvm.launder.invariant.group.p0(ptr %[[ARG_LOAD]])
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// LLVM-STRICT: store ptr %[[LAUNDER]], ptr %[[RET_ALLOCA]]
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// LLVM-STRICT: %[[RET:.*]] = load ptr, ptr %[[RET_ALLOCA]]
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// LLVM-STRICT: ret ptr %[[RET]]
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//
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// OGCG-STRICT-LABEL: define {{.*}}@_Z6use_vmP7VirtMem
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// OGCG-STRICT: %[[ARG_ALLOCA:.*]] = alloca ptr
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// OGCG-STRICT: %[[LAUNDER:.*]] = call ptr @llvm.launder.invariant.group.p0(ptr %[[ARG_LOAD]])
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// OGCG-STRICT: ret ptr %[[LAUNDER]]
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