llvm-project/clang
Jeremy Morse 121a49d839 [LiveDebugValues] Add switches for using instr-ref variable locations
This patch adds the -Xclang option
"-fexperimental-debug-variable-locations" and same LLVM CodeGen option,
to pick which variable location tracking solution to use.

Right now all the switch does is pick which LiveDebugValues
implementation to use, the normal VarLoc one or the instruction
referencing one in rGae6f78824031. Over time, the aim is to add fragments
of support in aid of the value-tracking RFC:

  http://lists.llvm.org/pipermail/llvm-dev/2020-February/139440.html

also controlled by this command line switch. That will slowly move
variable locations to be defined by an instruction calculating a value,
and a DBG_INSTR_REF instruction referring to that value. Thus, this is
going to grow into a "use the new kind of variable locations" switch,
rather than just "use the new LiveDebugValues implementation".

Differential Revision: https://reviews.llvm.org/D83048
2020-08-25 14:58:48 +01:00
..
INPUTS
bindings python bindings: fix DeprecationWarning 2020-08-10 15:25:23 -07:00
cmake Revert "Re-Re-land: [CodeView] Add full repro to LF_BUILDINFO record" 2020-08-17 15:49:18 -04:00
docs [X86] Enable constexpr on ROTL/ROTR intrinsics (PR31446) 2020-08-23 16:11:58 +01:00
examples [CMake] Fix building with -DBUILD_SHARED_LIBS=ON on mingw 2020-05-11 23:51:14 +03:00
include [LiveDebugValues] Add switches for using instr-ref variable locations 2020-08-25 14:58:48 +01:00
lib [LiveDebugValues] Add switches for using instr-ref variable locations 2020-08-25 14:58:48 +01:00
runtime Revert "[compiler-rt] Compile assembly files as ASM not C" 2020-08-20 15:25:22 +02:00
test [LiveDebugValues] Add switches for using instr-ref variable locations 2020-08-25 14:58:48 +01:00
tools Reland D61689 Change -gz and -Wa,--compress-debug-sections to use gABI compression (SHF_COMPRESSED) with integrated assembler 2020-08-03 15:12:01 -07:00
unittests [SyntaxTree] Update `Modifiable` tests to dump `NodeRole` and `unmodifiable` tag 2020-08-25 06:34:48 +00:00
utils [analyzer][tests] Add a notion of project sizes 2020-08-24 16:13:00 +03:00
www DR2303: Prefer 'nearer' base classes during template deduction. 2020-07-31 05:39:55 -07:00
.clang-format
.clang-tidy
.gitignore
CMakeLists.txt [CMake] Print the autodetected host linker version 2020-08-05 20:22:28 -07:00
CODE_OWNERS.TXT
INSTALL.txt
LICENSE.TXT
ModuleInfo.txt
NOTES.txt
README.txt Revert "[nfc] test commit" 2020-05-16 15:12:04 -05:00

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/