llvm-6502

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Bill Wendling 36ae6c1827 The DAG combiner was performing a BT combine. The BT combine had a value of -1,

so it changed it into a 31 via the TLO.ShrinkDemandedConstant() call. Then it
would go through the DAG combiner again. This time it had a value of 31, which
was turned into a -1 by TLI.SimplifyDemandedBits(). This would ping pong
forever.

Teach the TLO.ShrinkDemandedConstant() call not to lower a value if the demanded
value is an XOR of all ones.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65985 91177308-0d34-0410-b5e6-96231b3b80d8

2009-03-04 00:18:06 +00:00

autoconf

Switch to using -Wl,-R on Solaris.

2009-03-03 04:55:15 +00:00

bindings

Remove libtool.

2009-02-26 07:44:16 +00:00

cmake

Add mode_t to the config.h generated by cmake on win32. Used by clang.

2009-02-14 16:13:26 +00:00

docs

This bug's been fixed but a version with the fix hasn't been released yet.

2009-03-03 05:41:16 +00:00

examples

reapply Sanjiv's patch to genericize memcpy/memset/memmove to take an

2008-11-21 16:42:48 +00:00

include

Dbg Intrinsics do not access memory.

2009-03-03 22:33:54 +00:00

lib

The DAG combiner was performing a BT combine. The BT combine had a value of -1,

2009-03-04 00:18:06 +00:00

projects

…

runtime

Drop toy GC runtime.

2009-03-02 03:46:48 +00:00

test

The DAG combiner was performing a BT combine. The BT combine had a value of -1,

2009-03-04 00:18:06 +00:00

tools

Add example/Skeleton.

2009-03-03 11:02:48 +00:00

unittests

Remove libtool.

2009-02-26 07:44:16 +00:00

utils

'append_cmd' should split its argument.

2009-02-27 06:46:55 +00:00

website

…

win32

Update hand-crafted VC++ build.

2009-02-02 19:22:02 +00:00

Xcode

Remove Stacker.html from Xcode project.

2008-10-14 23:23:59 +00:00

build-for-llvm-top.sh

Patch to build llvm with srcdir != objdir from

2009-01-23 08:42:38 +00:00

CMakeLists.txt

Enable PACKAGE_VERSION in cmake builds, this unbreaks the clang build with cmake.

2009-01-28 17:49:03 +00:00

configure

Regenerate.

2009-03-03 04:55:29 +00:00

CREDITS.TXT

Adding your's truly to CREDITS.TXT

2009-01-19 15:04:29 +00:00

LICENSE.TXT

Another great year for LLVM!

2009-02-26 15:17:13 +00:00

llvm.spec.in

…

Makefile

Add targets to support the installation of clang in isolation.

2009-01-19 19:48:23 +00:00

Makefile.common

Removed trailing whitespace from Makefiles.

2009-01-09 16:44:42 +00:00

Makefile.config.in

Switch to using -Wl,-R on Solaris.

2009-03-03 04:55:15 +00:00

Makefile.rules

LINK_COMPONENTS should be added to LLVMLibsOptions.

2009-03-03 10:03:27 +00:00

ModuleInfo.txt

Patch to build llvm with srcdir != objdir from

2009-01-23 08:42:38 +00:00

README.txt

…

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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