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
18 lines
434 B
C++
18 lines
434 B
C++
// RUN: %clang_cc1 %s -triple i386-unknown-unknown -emit-llvm -o - | FileCheck %s
|
|
// PR7291
|
|
|
|
struct Foo {
|
|
unsigned file_id;
|
|
|
|
Foo(unsigned arg);
|
|
};
|
|
|
|
Foo::Foo(unsigned arg) : file_id(arg = 42)
|
|
{ }
|
|
|
|
// CHECK: define {{.*}} @_ZN3FooC2Ej(%struct.Foo* {{[^,]*}} %this, i32 %arg) unnamed_addr
|
|
// CHECK: [[ARG:%.*]] = alloca i32
|
|
// CHECK: store i32 42, i32* [[ARG]]
|
|
// CHECK: store i32 42, i32* %{{.*}}
|
|
// CHECK: ret {{void|%struct.Foo}}
|