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Hal Finkel 5d5d1539cc [PowerPC] Mark zext of a small scalar load as free 
This initial implementation of PPCTargetLowering::isZExtFree marks as free
zexts of small scalar loads (that are not sign-extending). This callback is
used by SelectionDAGBuilder's RegsForValue::getCopyToRegs, and thus to
determine whether a zext or an anyext is used to lower illegally-typed PHIs.
Because later truncates of zero-extended values are nops, this allows for the
elimination of later unnecessary truncations.

Fixes the initial complaint associated with PR22120.

llvm-svn: 225584
 		2015-01-10 08:21:59 +00:00
..
autoconf [multilib] Add support to the autoconf build to substitute 2014-12-29 11:58:17 +00:00
bindings [OCaml] [cmake] Use LLVM_LIBRARY_DIR instead of LLVM_LIBRARY_OUTPUT_INTDIR. 2014-12-30 03:24:07 +00:00
cmake Reverting r225319; since there is a folder named Examples, attempting to add a target of the same name causes problems for IDEs like Visual Studio. 2015-01-07 14:47:12 +00:00
docs ReleaseNotes.rst: these are for 3.6 2015-01-09 00:21:26 +00:00
examples Manually specify the folder that Kaleidescope should reside in for CMake-produced solutions that care about such things (like MSVC). This takes the Kaleidescope target out of the root solution folder and places it into the Examples folder where it belongs. 2015-01-07 14:26:07 +00:00
include Use the DiagnosticHandler to print diagnostics when reading bitcode. 2015-01-10 00:07:30 +00:00
lib [PowerPC] Mark zext of a small scalar load as free 2015-01-10 08:21:59 +00:00
projects
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test [PowerPC] Mark zext of a small scalar load as free 2015-01-10 08:21:59 +00:00
tools Use the DiagnosticHandler to print diagnostics when reading bitcode. 2015-01-10 00:07:30 +00:00
unittests ConvertUTFTest: fix misleading empty line 2015-01-10 05:03:29 +00:00
utils IR: Add 'distinct' MDNodes to bitcode and assembly 2015-01-08 22:38:29 +00:00
.arcconfig
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.clang-format
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.clang-tidy Enable display of compiler diagnostics in clang-tidy by default. 2014-10-29 17:29:38 +00:00
.gitignore [git] Mark the llgo directory in the LLVM gitignore. 2015-01-07 21:08:54 +00:00
CMakeLists.txt [py3] Teach the CMake build to reject Python versions older than 2.7. 2014-12-29 19:36:05 +00:00
CODE_OWNERS.TXT Add myself as SystemZ code owner 2014-12-18 19:27:50 +00:00
CREDITS.TXT
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LICENSE.TXT
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LLVMBuild.txt
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Makefile
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Makefile.common
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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 a check for misbehaving -Wcomment from gcc-4.7 and add 2014-11-05 00:35:15 +00:00
README.txt Test commit. 2015-01-07 22:07:33 +00:00
configure [multilib] Add support to the autoconf build to substitute 2014-12-29 11:58:17 +00:00
llvm.spec.in
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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're writing a package for LLVM, see docs/Packaging.rst for our
suggestions.