1e45ea12db
This change adds support for function linkage and visibility and related attributes. Most of the test changes are generalizations to allow 'dso_local' to be accepted where we aren't specifically testing for it. Some tests based on CIR inputs have been updated to add 'private' to function declarations where required by newly supported interfaces. The dso-local.c test has been updated to add specific tests for dso_local being set correctly, and a new test, func-linkage.cpp tests other linkage settings. This change sets `comdat` correctly in CIR, but it is not yet applied to functions when lowering to LLVM IR. That will be handled in a later change.
103 lines
3.8 KiB
C++
103 lines
3.8 KiB
C++
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-cir %s -o %t.cir
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// RUN: FileCheck --check-prefix=CIR --input-file=%t.cir %s
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// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm %s -o %t-cir.ll
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// RUN: FileCheck --check-prefix=LLVM --input-file=%t-cir.ll %s
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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 --check-prefix=OGCG --input-file=%t.ll %s
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// CIR: !rec_IncompleteC = !cir.record<class "IncompleteC" incomplete>
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// CIR: !rec_Base = !cir.record<class "Base" {!s32i}>
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// CIR: !rec_CompleteC = !cir.record<class "CompleteC" {!s32i, !s8i}>
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// CIR: !rec_Derived = !cir.record<class "Derived" {!rec_Base, !s32i}>
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// Note: LLVM and OGCG do not emit the type for incomplete classes.
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// LLVM: %class.CompleteC = type { i32, i8 }
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// LLVM: %class.Derived = type { %class.Base, i32 }
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// LLVM: %class.Base = type { i32 }
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// OGCG: %class.CompleteC = type { i32, i8 }
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// OGCG: %class.Derived = type { %class.Base, i32 }
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// OGCG: %class.Base = type { i32 }
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class IncompleteC;
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IncompleteC *p;
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// CIR: cir.global external @p = #cir.ptr<null> : !cir.ptr<!rec_IncompleteC>
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// LLVM: @p = global ptr null
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// OGCG: @p = global ptr null, align 8
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class CompleteC {
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public:
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int a;
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char b;
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};
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CompleteC cc;
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// CIR: cir.global external @cc = #cir.zero : !rec_CompleteC
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// LLVM: @cc = global %class.CompleteC zeroinitializer
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// OGCG: @cc = global %class.CompleteC zeroinitializer
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class Base {
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public:
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int a;
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};
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class Derived : public Base {
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public:
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int b;
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};
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int use(Derived *d) { return d->b; }
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// CIR: cir.func{{.*}} @_Z3useP7Derived(%[[ARG0:.*]]: !cir.ptr<!rec_Derived>
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// CIR: %[[D_ADDR:.*]] = cir.alloca !cir.ptr<!rec_Derived>, !cir.ptr<!cir.ptr<!rec_Derived>>, ["d", init]
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// CIR: cir.store %[[ARG0]], %[[D_ADDR]]
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// CIR: %[[D_PTR:.*]] = cir.load align(8) %0
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// CIR: %[[D_B_ADDR:.*]] = cir.get_member %[[D_PTR]][1] {name = "b"}
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// CIR: %[[D_B:.*]] = cir.load align(4) %[[D_B_ADDR]]
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// LLVM: define{{.*}} i32 @_Z3useP7Derived
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// LLVM: getelementptr %class.Derived, ptr %{{.*}}, i32 0, i32 1
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// OGCG: define{{.*}} i32 @_Z3useP7Derived
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// OGCG: getelementptr inbounds nuw %class.Derived, ptr %{{.*}}, i32 0, i32 1
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int use_base() {
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Derived d;
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return d.a;
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}
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// CIR: cir.func{{.*}} @_Z8use_basev
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// CIR: %[[D_ADDR:.*]] = cir.alloca !rec_Derived, !cir.ptr<!rec_Derived>, ["d"]
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// CIR: %[[BASE_ADDR:.*]] cir.base_class_addr %[[D_ADDR]] : !cir.ptr<!rec_Derived> nonnull [0] -> !cir.ptr<!rec_Base>
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// CIR: %[[D_A_ADDR:.*]] = cir.get_member %2[0] {name = "a"} : !cir.ptr<!rec_Base> -> !cir.ptr<!s32i>
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// CIR: %[[D_A:.*]] = cir.load align(4) %3 : !cir.ptr<!s32i>, !s32i
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// LLVM: define{{.*}} i32 @_Z8use_basev
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// LLVM: %[[D:.*]] = alloca %class.Derived
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// LLVM: %[[D_A_ADDR:.*]] = getelementptr %class.Base, ptr %[[D]], i32 0, i32 0
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// OGCG: define{{.*}} i32 @_Z8use_basev
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// OGCG: %[[D:.*]] = alloca %class.Derived
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// OGCG: %[[D_A_ADDR:.*]] = getelementptr inbounds nuw %class.Base, ptr %[[D]], i32 0, i32 0
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int use_base_via_pointer(Derived *d) {
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return d->a;
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}
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// CIR: cir.func{{.*}} @_Z20use_base_via_pointerP7Derived(%[[ARG0:.*]]: !cir.ptr<!rec_Derived>
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// CIR: %[[D_ADDR:.*]] = cir.alloca !cir.ptr<!rec_Derived>, !cir.ptr<!cir.ptr<!rec_Derived>>, ["d", init]
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// CIR: cir.store %[[ARG0]], %[[D_ADDR]]
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// CIR: %[[D:.*]] = cir.load align(8) %[[D_ADDR]]
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// CIR: %[[BASE_ADDR:.*]] = cir.base_class_addr %[[D]] : !cir.ptr<!rec_Derived> nonnull [0] -> !cir.ptr<!rec_Base>
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// CIR: %[[D_A_ADDR:.*]] = cir.get_member %[[BASE_ADDR]][0] {name = "a"}
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// CIR: %[[D_A:.*]] = cir.load align(4) %[[D_A_ADDR]]
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// LLVM: define{{.*}} i32 @_Z20use_base_via_pointerP7Derived
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// LLVM: %[[D_A_ADDR:.*]] = getelementptr %class.Base, ptr %{{.*}}, i32 0, i32 0
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// OGCG: define{{.*}} i32 @_Z20use_base_via_pointerP7Derived
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// OGCG: %[[D_A_ADDR:.*]] = getelementptr inbounds nuw %class.Base, ptr %{{.*}}, i32 0, i32 0
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