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Renato Golin ab7412a40d [ARM] Merging 64-bit divmod lib calls into one 
When div+rem calls on the same arguments are found, the ARM back-end merges the
two calls into one __aeabi_divmod call for up to 32-bits values. However,
for 64-bit values, which also have a lib call (__aeabi_ldivmod), it wasn't
merging the calls, and thus calling ldivmod twice and spilling the temporary
results, which generated pretty bad code.

This patch legalises 64-bit lib calls for divmod, so that now all the spilling
and the second call are gone. It also relaxes the DivRem combiner a bit on the
legal type check, since it was already checking for isLegalOrCustom on every
value, so the extra check for isTypeLegal was redundant.

This patch fixes PR17193 (and a long time FIXME in the tests).

llvm-svn: 262507
2016-03-02 19:35:45 +00:00
bindings Kill LLVMAddTargetData 2016-02-16 00:22:02 +00:00
cmake [cmake] Check the compiler version first 2016-03-02 16:42:56 +00:00
docs Rename embedded bitcode section in MachO 2016-02-29 19:40:10 +00:00
examples Refactor duplicated code for linking with pthread. 2016-03-01 15:54:40 +00:00
include SelectionDAG: Use correctly sized allocation functions for SDNodes 2016-03-02 19:01:11 +00:00
lib [ARM] Merging 64-bit divmod lib calls into one 2016-03-02 19:35:45 +00:00
projects Remove autoconf support 2016-01-26 21:29:08 +00:00
resources In MSVC builds embed a VERSIONINFO resource in our exe and DLL files. 2015-06-12 15:58:29 +00:00
test [ARM] Merging 64-bit divmod lib calls into one 2016-03-02 19:35:45 +00:00
tools llvm-dwp: Add missing copyright notice to llvm-dwp.cpp 2016-03-01 22:29:00 +00:00
unittests [AA] Hoist the logic to reformulate various AA queries in terms of other 2016-03-02 15:56:53 +00:00
utils TableGen: Display helpfull message for incomplete models. 2016-03-01 21:36:12 +00:00
.arcconfig Updated phabricator server. 2014-04-07 03:57:04 +00:00
.clang-format Test commit. 2014-03-02 13:08:46 +00:00
.clang-tidy adding readability-identifier-naming to llvm clang-tidy configuration. 2015-12-08 17:44:51 +00:00
.gitignore Minor updates to gitignore so that symlinks are ignored in the projects dir. 2015-07-07 20:24:58 +00:00
CMakeLists.txt [CMake] Add test-depends target to build dependencies of check-all 2016-03-02 17:56:30 +00:00
CODE_OWNERS.TXT [docs] Remove references to autotools build. 2016-01-30 01:10:15 +00:00
configure Remove autoconf support 2016-01-26 21:29:08 +00:00
CREDITS.TXT [WebAssembly] Initial WebAssembly backend 2015-06-29 23:51:55 +00:00
LICENSE.TXT Update for a new year. 2015-03-12 01:25:29 +00:00
llvm.spec.in [Sparc] Implement i64 load/store support for 32-bit sparc. 2015-08-10 19:11:39 +00:00
LLVMBuild.txt
README.txt Revert previous test commit. 2016-01-04 19:13:29 +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.