cd81aae57a
As per OpenMP 5.1, we need to assume that when the lookup for
`use_device_ptr/addr` fails, the incoming pointer was already device
accessible.
Prior to 5.1, a lookup-failure meant a user-error (for
`use_device_ptr`),
so we could do anything in that scenario. For `use_device_addr`,
it was always incorrect to set the address to null.
OpenMP 6.1 adds a way to retain the previous behavior of nullifying a
pointer
when the lookup fails. That will be tackled by the PR stack
starting with https://github.com/llvm/llvm-project/pull/169603.
C language Family Front-end
Welcome to Clang.
This is a compiler front-end for the C family of languages (C, C++ and Objective-C) which is built as part of the LLVM compiler infrastructure project.
Unlike many other compiler frontends, Clang is useful for a number of things beyond just compiling code: we intend for Clang to be host to a number of different source-level tools. One example of this is the Clang Static Analyzer.
If you're interested in more (including how to build Clang) it is best to read the relevant websites. Here are some pointers:
-
Information on Clang: http://clang.llvm.org/
-
Building and using Clang: http://clang.llvm.org/get_started.html
-
Clang Static Analyzer: http://clang-analyzer.llvm.org/
-
Information on the LLVM project: http://llvm.org/
-
If you have questions or comments about Clang, a great place to discuss them is on the Clang forums:
-
If you find a bug in Clang, please file it in the LLVM bug tracker: