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Saiyedul Islam 98380762c3 [clang-offload-bundler] Make Bundle Entry ID backward compatible 
Earlier BundleEntryID used to be <OffloadKind>-<Triple>-<GPUArch>.
This used to work because the clang-offload-bundler didn't need
GPUArch explicitly for any bundling/unbundling action. With
unbundleArchive it needs GPUArch to ensure compatibility between
device specific code objects. D93525 enforced triples to have
separators for all 4 components irrespective of number of
components, like "amdgcn-amd-amdhsa--". It was required to
to correctly parse a possible 4th environment component or a GPU.
But, this condition is breaking backward compatibility with
archive libraries compiled with compilers older than D93525.

This patch allows triples to have any number of components with
and without extra separator for empty environment field. Thus,
both the following bundle entry IDs are same:
openmp-amdgcn-amd-amdhsa--gfx906
openmp-amdgcn-amd-amdhsa-gfx906

Reviewed By: yaxunl, grokos

Differential Revision: https://reviews.llvm.org/D106809
2021-09-08 16:06:12 +05:30
..
bindings [Clang] Add __ibm128 type to represent ppc_fp128 2021-09-06 18:00:58 +08:00
cmake
docs [clang-offload-bundler] Make Bundle Entry ID backward compatible 2021-09-08 16:06:12 +05:30
examples Revert "Reland "[clang-repl] Re-implement clang-interpreter as a test case."" 2021-09-03 13:18:09 +00:00
include [clang] Add '-ast-dump-filter=' support 2021-09-07 10:42:18 +08:00
INPUTS
lib [clang-offload-bundler] Make Bundle Entry ID backward compatible 2021-09-08 16:06:12 +05:30
runtime
test [clang-offload-bundler] Make Bundle Entry ID backward compatible 2021-09-08 16:06:12 +05:30
tools [clang-offload-bundler] Make Bundle Entry ID backward compatible 2021-09-08 16:06:12 +05:30
unittests [clang][Driver] Pick the last --driver-mode in case of multiple ones 2021-09-07 15:33:45 +02:00
utils
www
.clang-format
.clang-tidy
.gitignore
CMakeLists.txt
CODE_OWNERS.TXT
INSTALL.txt
LICENSE.TXT
ModuleInfo.txt
NOTES.txt
README.txt

README.txt 

//===----------------------------------------------------------------------===//
// C Language Family Front-end
//===----------------------------------------------------------------------===//

Welcome to Clang.  This is a compiler front-end for the C family of languages
(C, C++, Objective-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 web sites.  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 development mailing list:
  http://lists.llvm.org/mailman/listinfo/cfe-dev

If you find a bug in Clang, please file it in the LLVM bug tracker:
  http://llvm.org/bugs/