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Kit Barton bd9a548881 Add Hardware Transactional Memory (HTM) Support
This patch adds Hardware Transaction Memory (HTM) support supported by ISA 2.07
(POWER8). The intrinsic support is based on GCC one [1], but currently only the
'PowerPC HTM Low Level Built-in Function' are implemented.

The HTM instructions follows the RC ones and the transaction initiation result
is set on RC0 (with exception of tcheck). Currently approach is to create a
register copy from CR0 to GPR and comapring. Although this is suboptimal, since
the branch could be taken directly by comparing the CR0 value, it generates code
correctly on both test and branch and just return value. A possible future
optimization could be elimitate the MFCR instruction to branch directly.

The HTM usage requires a recently newer kernel with PPC HTM enabled. Tested on
powerpc64 and powerpc64le.

This is send along a clang patch to enabled the builtins and option switch.

[1] https://gcc.gnu.org/onlinedocs/gcc/PowerPC-Hardware-Transactional-Memory-Built-in-Functions.html

Phabricator Review: http://reviews.llvm.org/D8247


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233204 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-25 19:36:23 +00:00
autoconf [autoconf] Fix the build failure by quoting the strings. 2015-03-12 19:56:25 +00:00
bindings Go bindings: use MDNode::replaceAllUsesWith instead of MDTuple::replaceAllUsesWith. 2015-03-05 22:55:38 +00:00
cmake Disabling warnings for MSVC build to enable /W4 use. 2015-03-24 23:37:10 +00:00
docs docs: Update llvm-cov docs for the -use-color flag 2015-03-19 18:22:46 +00:00
examples Fix build. 2015-03-25 04:36:20 +00:00
include Add Hardware Transactional Memory (HTM) Support 2015-03-25 19:36:23 +00:00
lib Add Hardware Transactional Memory (HTM) Support 2015-03-25 19:36:23 +00:00
projects Reverse the order libc++ and libc++abi are added in CMake. 2015-03-04 01:16:43 +00:00
test Add Hardware Transactional Memory (HTM) Support 2015-03-25 19:36:23 +00:00
tools llvm-jitlistener: Add missing include. 2015-03-25 17:12:36 +00:00
unittests [APInt] Add an isSplat helper and use it in some places. 2015-03-25 16:49:59 +00:00
utils Revert "Use std::bitset for SubtargetFeatures" 2015-03-24 12:56:59 +00:00
.arcconfig
.clang-format
.clang-tidy
.gitignore Add one more vim swap file pattern 2015-01-30 21:59:28 +00:00
CMakeLists.txt test: Fix the dependencies for the check-llvm-* targets 2015-03-25 08:07:47 +00:00
CODE_OWNERS.TXT Tom is also responsible for the 3.6 branch. 2015-03-16 18:15:27 +00:00
configure [autoconf] Fix the build failure by quoting the strings. 2015-03-12 19:56:25 +00:00
CREDITS.TXT
LICENSE.TXT Update for a new year. 2015-03-12 01:25:29 +00:00
llvm.spec.in
LLVMBuild.txt
Makefile
Makefile.common
Makefile.config.in Add a check for misbehaving -Wcomment from gcc-4.7 and add 2014-11-05 00:35:15 +00:00
Makefile.rules Add support for SunOS function/data sections and associated 2015-03-03 20:54:29 +00:00
README.txt Revert test commit 2015-02-04 18:46:00 +00:00

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