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Mirror of https://github.com/RPCS3/llvm-mirror
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Javed Absar 35adbf7085 [ARM]: Assign cost of scaling used in addressing mode for ARM cores 
This patch assigns cost of the scaling used in addressing.
On many ARM cores, a negated register offset takes longer than a
non-negated register offset, in a register-offset addressing mode.

For instance:

LDR R0, [R1, R2 LSL #2]
LDR R0, [R1, -R2 LSL #2]

Above, (1) takes less cycles than (2).

By assigning appropriate scaling factor cost, we enable the LLVM
to make the right trade-offs in the optimization and code-selection phase.

Differential Revision: http://reviews.llvm.org/D24857

Reviewers: jmolloy, rengolin
llvm-svn: 284127
2016-10-13 14:57:43 +00:00
bindings cmake: Install the OCaml libraries into a more correct path 2016-09-30 18:34:23 +00:00
cmake [cmake] Make LIT_COMMAND configurable and improve fallback support 2016-10-04 20:25:37 +00:00
docs [GitHubMove Doc] Properly nest a subsection in the proposal 2016-10-12 23:36:11 +00:00
examples [Kaleidoscope] Make Chapter 2 use llvm::make_unique, rather than a helper. 2016-09-19 23:00:27 +00:00
include [X86] Basic additions to support RegCall Calling Convention. 2016-10-13 07:53:43 +00:00
lib [ARM]: Assign cost of scaling used in addressing mode for ARM cores 2016-10-13 14:57:43 +00:00
projects [CMake] Correct configuration order of the sub-projects based on ther dependancies 2016-10-09 20:38:29 +00:00
resources
runtimes
test [ARM]: Assign cost of scaling used in addressing mode for ARM cores 2016-10-13 14:57:43 +00:00
tools [Coverage] Delete some copy constructors (NFC) 2016-10-12 22:27:49 +00:00
unittests Remove a FIXME that I forgot about. NFC. 2016-10-13 05:28:55 +00:00
utils [lit] Fix test shtest-timeout.py for modern output 2016-10-12 21:40:08 +00:00
.arcconfig project_id is from another era in phabricator land and does not provide any value. 2016-09-27 15:47:29 +00:00
.clang-format
.clang-tidy
.gitignore
CMakeLists.txt [cmake] Treat polly as "in tree" if LLVM_EXTERNAL_POLLY_SOURCE_DIR is provided 2016-10-07 21:32:47 +00:00
CODE_OWNERS.TXT
configure
CREDITS.TXT
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt
README.txt
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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.