llvm-project

History

Sanjay Patel 661cc71a1c [PassManager][PhaseOrdering] lower expects before running simplifyCFG Retry of `330619a3a6` that includes a clang test update. Original commit message: If we run passes before lowering llvm.expect intrinsics to metadata, then those passes have no way to act on the hints provided by llvm.expect. SimplifyCFG is the known offender, and we made it smarter about profile metadata in D98898 <https://reviews.llvm.org/D98898>. In the motivating example from https://llvm.org/PR49336 , this means we were ignoring the recommended method for a programmer to tell the compiler that a compare+branch is expensive. This change appears to solve that case - the metadata survives to the backend, the compare order is as expected in IR, and the backend does not do anything to reverse it. We make the same change to the old pass manager to keep things synchronized. Differential Revision: https://reviews.llvm.org/D100213		2021-04-12 15:07:53 -04:00
..
INPUTS	…
bindings	…
cmake	Include `count` in AppleClang toolchains.	2021-04-08 14:00:29 -07:00
docs	[OpenMP51][DOCS] Claimed masked construct and report current patch, NFC.	2021-04-09 15:21:13 -05:00
examples	…
include	Replace uses of std::iterator with explicit using	2021-04-12 10:47:14 -07:00
lib	Allow applying attributes to subset of allowed subjects.	2021-04-12 09:33:33 -07:00
runtime	[compiler-rt] Fix stale incremental builds when using `LLVM_BUILD_EXTERNAL_COMPILER_RT=ON`.	2021-03-10 09:42:24 -08:00
test	[PassManager][PhaseOrdering] lower expects before running simplifyCFG	2021-04-12 15:07:53 -04:00
tools	[OpenMP51] Initial support for masked directive and filter clause	2021-04-09 14:00:36 -05:00
unittests	[clang][AST] Handle overload callee type in CallExpr::getCallReturnType.	2021-04-12 09:44:17 +02:00
utils	[RISCV][Clang] Add all RVV Mask intrinsic functions.	2021-04-11 19:19:02 -07:00
www	[C++2b] Support size_t literals	2021-03-31 13:36:23 +00:00
.clang-format	…
.clang-tidy	…
.gitignore	Remove .gitignore entries not relevant in the monorepo.	2021-04-07 12:25:02 -07:00
CMakeLists.txt	[clang][cli] Round-trip cc1 arguments in assert builds	2021-03-27 17:24:03 +01:00
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/