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Sanjoy Das 58149dbd85 [Stackmap] Added callsite counts to emitted function information. 
Summary:
It was previously not possible for tools to use solely the stackmap
information emitted to reconstruct the return addresses of callsites in
the map, which is necessary to use the information to walk a stack. This
patch adds per-function callsite counts when emitting the stackmap
section in order to resolve the problem. Note that this slightly alters
the stackmap format, so external tools parsing these maps will need to
be updated.

**Problem Details:**
Records only store their offset from the beginning of the function they
belong to. While these records and the functions are output in program
order, it is not possible to determine where the end of one function's
records are without the callsite count when processing the records to
compute return addresses.

Patch by Kavon Farvardin!

Reviewers: atrick, ributzka, sanjoy

Subscribers: nemanjai

Differential Revision: https://reviews.llvm.org/D23487

llvm-svn: 281532
2016-09-14 20:22:03 +00:00
bindings Formatting with clang-format patch r280700 2016-09-06 17:03:02 +00:00
cmake [cmake] Fix a stale comment from an earlier version of r281085. NFC. 2016-09-09 19:48:22 +00:00
docs [Stackmap] Added callsite counts to emitted function information. 2016-09-14 20:22:03 +00:00
examples [ORC] Update examples for header changes in r281171. 2016-09-11 21:34:13 +00:00
include [Stackmap] Added callsite counts to emitted function information. 2016-09-14 20:22:03 +00:00
lib [Stackmap] Added callsite counts to emitted function information. 2016-09-14 20:22:03 +00:00
projects Enable in-tree builds of parallel-libs. 2016-09-09 21:34:12 +00:00
resources
runtimes [CMake] Connecting check-all and test-depends targets correctly 2016-09-01 18:26:01 +00:00
test [Stackmap] Added callsite counts to emitted function information. 2016-09-14 20:22:03 +00:00
tools [Stackmap] Added callsite counts to emitted function information. 2016-09-14 20:22:03 +00:00
unittests Verifier: Mark orphaned DICompileUnits as a debug info failure. 2016-09-14 17:30:37 +00:00
utils This reapplies r281304. The issue was that I had missed 2016-09-14 08:20:03 +00:00
.arcconfig Upgrade all the .arcconfigs to https. 2016-07-14 13:15:37 +00:00
.clang-format
.clang-tidy .clang-tidy: correct style name is 'camelBack' not 'lowerCase'. 2016-09-13 19:04:26 +00:00
.gitignore gitignore: ignore VS Code editor files 2016-09-02 22:54:26 +00:00
CMakeLists.txt Try to fix a circular dependency in the modules build. 2016-09-06 20:16:19 +00:00
CODE_OWNERS.TXT CODE_OWNERS: bring my entry up to date 2016-09-05 17:42:46 +00:00
configure Remove autoconf support 2016-01-26 21:29:08 +00:00
CREDITS.TXT Shamelessly add myself to CREDITS.TXT 2016-08-04 16:28:22 +00:00
LICENSE.TXT Remove autoconf references from LICENSE.TXT 2016-08-12 20:11:03 +00:00
llvm.spec.in
LLVMBuild.txt
README.txt Revert rL277454 2016-08-02 13:26:07 +00:00
RELEASE_TESTERS.TXT Adding RELEASE_TESTERS.TXT 2016-07-21 16:46:44 +00:00

README.txt 

Low Level Virtual Machine (LLVM)
================================

This directory and its subdirectories contain source code for LLVM,
a toolkit for the construction of highly optimized compilers,
optimizers, and runtime environments.

LLVM is open source software. You may freely distribute it under the terms of
the license agreement found in LICENSE.txt.

Please see the documentation provided in docs/ for further
assistance with LLVM, and in particular docs/GettingStarted.rst for getting
started with LLVM and docs/README.txt for an overview of LLVM's
documentation setup.

If you are writing a package for LLVM, see docs/Packaging.rst for our
suggestions.