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
76 lines
1.5 KiB
Plaintext
76 lines
1.5 KiB
Plaintext
// RUN: %clang_cc1 -fobjc-gc -triple x86_64-apple-darwin10 -fobjc-runtime=macosx-fragile-10.5 -emit-llvm -o - %s | FileCheck %s
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struct A {
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A();
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A(const A&);
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A(A&);
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~A();
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};
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struct B {
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B();
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B(B&);
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};
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struct C {
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C() {}
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C(C& other, A a = A());
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int i, j;
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};
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struct POD {
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id myobjc;
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int array[3][4];
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};
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struct D : A, B, virtual C {
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D();
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int scalar;
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int scalar_array[2][3];
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B class_member;
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C class_member_array[2][3];
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POD pod_array[2][3];
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union {
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int x;
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float f[3];
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};
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};
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void f(D d) {
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D d2(d);
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}
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// CHECK-LABEL: define linkonce_odr void @_ZN1DC1ERS_(%struct.D* {{[^,]*}} %this, %struct.D* nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}) %0) unnamed_addr
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// CHECK: call void @_ZN1AC1Ev
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// CHECK: call void @_ZN1CC2ERS_1A
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// CHECK: call void @_ZN1AD1Ev
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// CHECK: call void @_ZN1AC2ERS_
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// CHECK: call void @_ZN1BC2ERS_
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// CHECK: {{call void @llvm.memcpy.p0i8.p0i8.i64.*i64 24}}
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// CHECK: call void @_ZN1BC1ERS_
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// CHECK: br label
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// CHECK: call void @_ZN1AC1Ev
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// CHECK: call void @_ZN1CC1ERS_1A
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// CHECK: call void @_ZN1AD1Ev
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// CHECK: {{icmp eq.*, 3}}
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// CHECK: br i1
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// CHECK: {{icmp eq.*, 2}}
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// CHECK: br i1
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// CHECK: {{call.*@objc_memmove_collectable}}
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// CHECK: {{call void @llvm.memcpy.p0i8.p0i8.i64.*i64 12}}
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// CHECK: ret void
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template<class T> struct X0 { void f0(T * ) { } };
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template <class > struct X1 { X1( X1& , int = 0 ) { } };
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struct X2 { X1<int> result; };
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void test_X2()
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{
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typedef X2 impl;
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typedef X0<impl> pimpl;
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impl* i;
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pimpl pdata;
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pdata.f0( new impl(*i));
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}
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