derek.holloway
7502bf64a4
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62 lines
3.5 KiB
C++
62 lines
3.5 KiB
C++
// RUN: %clang_cc1 -std=c++98 -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 -std=c++98 -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm %s -o %t-cir.ll
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// RUN: FileCheck --input-file=%t-cir.ll %s --check-prefix=LLVM
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// RUN: %clang_cc1 -std=c++98 -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=LLVM
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struct Base { int x; };
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void Field() {
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const int &r = Base().x;
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}
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// CIR-LABEL: cir.func {{.*}}@_Z5Fieldv()
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// CIR: %[[TEMP_ALLOCA:.*]] = cir.alloca !rec_Base, !cir.ptr<!rec_Base>, ["ref.tmp0"]
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// CIR: %[[R_ALLOCA:.*]] = cir.alloca !cir.ptr<!s32i>, !cir.ptr<!cir.ptr<!s32i>>, ["r", init, const]
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// CIR: %[[GET_MEM:.*]] = cir.get_member %[[TEMP_ALLOCA]][0] {name = "x"} : !cir.ptr<!rec_Base> -> !cir.ptr<!s32i>
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// CIR: cir.store align(8) %[[GET_MEM]], %[[R_ALLOCA]] : !cir.ptr<!s32i>, !cir.ptr<!cir.ptr<!s32i>>
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// LLVM-LABEL: define {{.*}}@_Z5Fieldv()
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// LLVM-DAG: %[[TEMP_ALLOCA:.*]] = alloca %struct.Base
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// LLVM-DAG: %[[R_ALLOCA:.*]] = alloca ptr
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// LLVM: %[[GET_MEM:.*]] = getelementptr inbounds nuw %struct.Base, ptr %[[TEMP_ALLOCA]], i32 0, i32 0
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// LLVM: store ptr %[[GET_MEM]], ptr %[[R_ALLOCA]], align 8
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void MemPtr(int Base::*mp) {
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const int &r = Base().*mp;
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}
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// CIR-LABEL: cir.func {{.*}}@_Z6MemPtrM4Basei
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// CIR: %[[MP_ALLOCA:.*]] = cir.alloca !s64i, !cir.ptr<!s64i>, ["mp", init] {alignment = 8 : i64}
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// CIR: %[[TEMP_ALLOCA:.*]] = cir.alloca !rec_Base, !cir.ptr<!rec_Base>, ["ref.tmp0"] {alignment = 4 : i64}
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// CIR: %[[R_ALLOCA:.*]] = cir.alloca !cir.ptr<!s32i>, !cir.ptr<!cir.ptr<!s32i>>, ["r", init, const] {alignment = 8 : i64}
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// CIR: %[[ARG_LOAD:.*]] = cir.load align(8) %[[MP_ALLOCA]] : !cir.ptr<!s64i>, !s64i
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// CIR: %[[TEMP_LOAD:.*]] = cir.cast bitcast %[[TEMP_ALLOCA]] : !cir.ptr<!rec_Base> -> !cir.ptr<!s8i>
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// CIR: %[[STRIDE:.*]] = cir.ptr_stride %[[TEMP_LOAD]], %[[ARG_LOAD]] : (!cir.ptr<!s8i>, !s64i) -> !cir.ptr<!s8i>
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// CIR: %[[TO_INT:.*]] = cir.cast bitcast %[[STRIDE:.*]] : !cir.ptr<!s8i> -> !cir.ptr<!s32i>
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// CIR: cir.store align(8) %[[TO_INT]], %[[R_ALLOCA]] : !cir.ptr<!s32i>, !cir.ptr<!cir.ptr<!s32i>>
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// LLVM-LABEL: define {{.*}}@_Z6MemPtrM4Basei
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// LLVM: %[[MP_ALLOCA:.*]] = alloca i64
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// LLVM-DAG: %[[TEMP_ALLOCA:.*]] = alloca %struct.Base
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// LLVM-DAG: %[[R_ALLOCA:.*]] = alloca ptr
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// LLVM: %[[ARG_LOAD:.*]] = load i64, ptr %[[MP_ALLOCA]], align 8
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// LLVM: %[[STRIDE:.*]] = getelementptr {{.*}}i8, ptr %[[TEMP_ALLOCA]], i64 %[[ARG_LOAD]]
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// LLVM: store ptr %[[STRIDE]], ptr %[[R_ALLOCA]], align 8
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struct Derived : Base {};
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void DerivedToBase() {
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const int &r = Derived().x;
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}
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// CIR-LABEL: cir.func {{.*}}@_Z13DerivedToBasev()
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// CIR: %[[TEMP_ALLOCA:.*]] = cir.alloca !rec_Derived, !cir.ptr<!rec_Derived>, ["ref.tmp0"] {alignment = 4 : i64}
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// CIR: %[[R_ALLOCA:.*]] = cir.alloca !cir.ptr<!s32i>, !cir.ptr<!cir.ptr<!s32i>>, ["r", init, const] {alignment = 8 : i64}
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// CIR: %[[BASE:.*]] = cir.base_class_addr %[[TEMP_ALLOCA]] : !cir.ptr<!rec_Derived> nonnull [0] -> !cir.ptr<!rec_Base>
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// CIR: %[[GET_MEM:.*]] = cir.get_member %[[BASE]][0] {name = "x"} : !cir.ptr<!rec_Base> -> !cir.ptr<!s32i>
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// CIR: cir.store align(8) %[[GET_MEM]], %[[R_ALLOCA]] : !cir.ptr<!s32i>, !cir.ptr<!cir.ptr<!s32i>>
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// LLVM-LABEL: define {{.*}}@_Z13DerivedToBasev
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// LLVM-DAG: %[[TEMP_ALLOCA:.*]] = alloca %struct.Derived
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// LLVM-DAG: %[[R_ALLOCA:.*]] = alloca ptr
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// LLVM: %[[GET_MEM:.*]] = getelementptr inbounds nuw %struct.Base, ptr %[[TEMP_ALLOCA]], i32 0, i32 0
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// LLVM: store ptr %[[GET_MEM]], ptr %[[R_ALLOCA]], align 8
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