llvm-6502

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Evan Cheng 7da9ecf967 Add a quick pass to optimize sign / zero extension instructions. For targets where the pre-extension values are available in the subreg of the result of the extension, replace the uses of the pre-extension value with the result + extract_subreg.

For now, this pass is fairly conservative. It only perform the replacement when both the pre- and post- extension values are used in the block. It will miss cases where the post-extension values are live, but not used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93278 91177308-0d34-0410-b5e6-96231b3b80d8

2010-01-13 00:30:23 +00:00

autoconf

Proper deduce z/System LLVM target from target triple when

2010-01-05 20:45:13 +00:00

bindings

Fix another parallel make race condition.

2009-12-18 20:12:14 +00:00

cmake

Update CMake LibDeps

2010-01-04 23:17:24 +00:00

docs

Add documentation for llvm.dbg.value intrinsic

2010-01-11 22:53:48 +00:00

examples

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include

Add a quick pass to optimize sign / zero extension instructions. For targets where the pre-extension values are available in the subreg of the result of the extension, replace the uses of the pre-extension value with the result + extract_subreg.

2010-01-13 00:30:23 +00:00

lib

2010-01-13 00:30:23 +00:00

projects

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runtime

remove the random sampling framework, which is not maintained anymore.

2010-01-02 20:07:03 +00:00

test

2010-01-13 00:30:23 +00:00

tools

Reimplement getToken and SplitString as "StringRef helper functions"

2010-01-11 18:03:24 +00:00

unittests

NamedMDNode is a collection MDNodes.

2010-01-05 20:41:31 +00:00

utils

Reimplement getToken and SplitString as "StringRef helper functions"

2010-01-11 18:03:24 +00:00

website

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Xcode

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build-for-llvm-top.sh

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CMakeLists.txt

Fix CMake build for InstCombine changes

2010-01-04 21:58:55 +00:00

configure

Regenerate

2010-01-05 20:45:43 +00:00

CREDITS.TXT

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LICENSE.TXT

2010 is upon us.

2010-01-09 18:40:31 +00:00

llvm.spec.in

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Makefile

Update install-clang target for clang-cc removal.

2009-12-12 21:17:54 +00:00

Makefile.common

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Makefile.config.in

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Makefile.rules

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ModuleInfo.txt

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README.txt

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README.txt

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

This directory and its subdirectories contain source code for the Low Level
Virtual Machine, 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 HTML documentation provided in docs/index.html for further
assistance with LLVM.

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