69cd776e1e
arguments. * Adds 'nonnull' and 'dereferenceable(N)' to 'this' pointer arguments * Gates 'nonnull' on -f(no-)delete-null-pointer-checks * Introduces this-nonnull.cpp and microsoft-abi-this-nullable.cpp tests to explicitly test the behavior of this change * Refactors hundreds of over-constrained clang tests to permit these attributes, where needed * Updates Clang12 patch notes mentioning this change Reviewed-by: rsmith, jdoerfert Differential Revision: https://reviews.llvm.org/D17993
77 lines
3.3 KiB
C++
77 lines
3.3 KiB
C++
// RUN: %clang_cc1 -mconstructor-aliases -std=c++11 -fexceptions -emit-llvm %s -o - -triple=i386-pc-win32 | FileCheck %s -check-prefix=X86
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// RUN: %clang_cc1 -mconstructor-aliases -std=c++11 -fexceptions -emit-llvm %s -o - -triple=x86_64-pc-win32 | FileCheck %s -check-prefix=X64
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struct A {
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A(int a);
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A(const A &o);
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~A();
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int a;
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};
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void foo(A a, A b, A c) {
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}
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// Order of destruction should be left to right.
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//
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// X86-LABEL: define dso_local void @"?foo@@YAXUA@@00@Z"
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// X86: ([[argmem_ty:<{ %struct.A, %struct.A, %struct.A }>]]* inalloca %0)
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// X86: %[[a:[^ ]*]] = getelementptr inbounds [[argmem_ty]], [[argmem_ty]]* %0, i32 0, i32 0
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// X86: %[[b:[^ ]*]] = getelementptr inbounds [[argmem_ty]], [[argmem_ty]]* %0, i32 0, i32 1
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// X86: %[[c:[^ ]*]] = getelementptr inbounds [[argmem_ty]], [[argmem_ty]]* %0, i32 0, i32 2
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// X86: call x86_thiscallcc void @"??1A@@QAE@XZ"(%struct.A* {{[^,]*}} %[[a]])
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// X86: call x86_thiscallcc void @"??1A@@QAE@XZ"(%struct.A* {{[^,]*}} %[[b]])
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// X86: call x86_thiscallcc void @"??1A@@QAE@XZ"(%struct.A* {{[^,]*}} %[[c]])
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// X86: ret void
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// X64-LABEL: define dso_local void @"?foo@@YAXUA@@00@Z"
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// X64: (%struct.A* %[[a:[^,]*]], %struct.A* %[[b:[^,]*]], %struct.A* %[[c:[^)]*]])
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// X64: call void @"??1A@@QEAA@XZ"(%struct.A* {{[^,]*}} %[[a]])
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// X64: call void @"??1A@@QEAA@XZ"(%struct.A* {{[^,]*}} %[[b]])
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// X64: call void @"??1A@@QEAA@XZ"(%struct.A* {{[^,]*}} %[[c]])
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// X64: ret void
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void call_foo() {
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foo(A(1), A(2), A(3));
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}
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// Order of evaluation should be right to left, and we should clean up the right
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// things as we unwind.
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//
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// X86-LABEL: define dso_local void @"?call_foo@@YAXXZ"()
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// X86: call i8* @llvm.stacksave()
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// X86: %[[argmem:[^ ]*]] = alloca inalloca [[argmem_ty]]
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// X86: %[[arg3:[^ ]*]] = getelementptr inbounds [[argmem_ty]], [[argmem_ty]]* %[[argmem]], i32 0, i32 2
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// X86: call x86_thiscallcc %struct.A* @"??0A@@QAE@H@Z"(%struct.A* {{[^,]*}} %[[arg3]], i32 3)
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// X86: %[[arg2:[^ ]*]] = getelementptr inbounds [[argmem_ty]], [[argmem_ty]]* %[[argmem]], i32 0, i32 1
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// X86: invoke x86_thiscallcc %struct.A* @"??0A@@QAE@H@Z"(%struct.A* {{[^,]*}} %[[arg2]], i32 2)
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// X86: %[[arg1:[^ ]*]] = getelementptr inbounds [[argmem_ty]], [[argmem_ty]]* %[[argmem]], i32 0, i32 0
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// X86: invoke x86_thiscallcc %struct.A* @"??0A@@QAE@H@Z"(%struct.A* {{[^,]*}} %[[arg1]], i32 1)
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// X86: call void @"?foo@@YAXUA@@00@Z"([[argmem_ty]]* inalloca %[[argmem]])
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// X86: call void @llvm.stackrestore
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// X86: ret void
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//
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// lpad2:
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// X86: cleanuppad within none []
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// X86: call x86_thiscallcc void @"??1A@@QAE@XZ"(%struct.A* {{[^,]*}} %[[arg2]])
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// X86: cleanupret
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//
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// ehcleanup:
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// X86: call x86_thiscallcc void @"??1A@@QAE@XZ"(%struct.A* {{[^,]*}} %[[arg3]])
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// X64-LABEL: define dso_local void @"?call_foo@@YAXXZ"()
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// X64: call %struct.A* @"??0A@@QEAA@H@Z"(%struct.A* {{[^,]*}} %[[arg3:[^,]*]], i32 3)
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// X64: invoke %struct.A* @"??0A@@QEAA@H@Z"(%struct.A* {{[^,]*}} %[[arg2:[^,]*]], i32 2)
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// X64: invoke %struct.A* @"??0A@@QEAA@H@Z"(%struct.A* {{[^,]*}} %[[arg1:[^,]*]], i32 1)
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// X64: call void @"?foo@@YAXUA@@00@Z"
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// X64: (%struct.A* %[[arg1]], %struct.A* %[[arg2]], %struct.A* %[[arg3]])
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// X64: ret void
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//
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// lpad2:
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// X64: cleanuppad within none []
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// X64: call void @"??1A@@QEAA@XZ"(%struct.A* {{[^,]*}} %[[arg2]])
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// X64: cleanupret
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//
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// ehcleanup:
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// X64: call void @"??1A@@QEAA@XZ"(%struct.A* {{[^,]*}} %[[arg3]])
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