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
22 lines
507 B
C++
22 lines
507 B
C++
// RUN: %clang_cc1 -emit-llvm %s -o - -triple=ppc64-windows-msvc | FileCheck %s
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// The purpose of this test is to see that we do something reasonable for
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// architectures where we haven't checked what MSVC does.
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struct A {
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A() : a(42) {}
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A(const A &o) : a(o.a) {}
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~A() {}
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int a;
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};
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struct B {
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A foo(A o);
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};
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A B::foo(A x) {
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return x;
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}
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// CHECK-LABEL: define void @"?foo@B@@QEAA?AUA@@U2@@Z"(%struct.B* {{[^,]*}} %this, %struct.A* noalias sret(%struct.A) align 4 %agg.result, %struct.A* %x)
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