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Andrew Trick 949045864d Fix an overly general check in SimplifyIndvar to handle useless phi cycles. 
The right way to check for a binary operation is
cast<BinaryOperator>. The original check: cast<Instruction> &&
numOperands() == 2 would match phi "instructions", leading to an
infinite loop in extreme corner case: a useless phi with operands
[self, constant] that prior optimization passes failed to remove,
being used in the loop by another useless phi, in turn being used by an
lshr or udiv.

Fixes PR11350: runaway iteration assertion.

llvm-svn: 144935
 		2011-11-17 23:36:35 +00:00
..
autoconf Add an option '--enable-libcpp' that will have the compiler pass on 2011-11-11 22:51:42 +00:00
bindings Minor fixes in Makefiles for the OCaml bindings: 2011-11-09 12:00:39 +00:00
cmake Fix CRT selection logic when using CMake NMake generator. 2011-11-06 23:37:22 +00:00
docs x86/windows issues fixed. 2011-11-17 01:42:23 +00:00
examples build: Add initial cut at LLVMBuild.txt files. 2011-11-03 18:53:17 +00:00
include Fix bug in RefCountedBase/RefCountedBaseVPTR where the reference count was accidentally copied as part of the copy constructor. This could result in objects getting leaked because there reference count was too high. 2011-11-17 23:02:14 +00:00
lib Fix an overly general check in SimplifyIndvar to handle useless phi cycles. 2011-11-17 23:36:35 +00:00
projects build: Add initial cut at LLVMBuild.txt files. 2011-11-03 18:53:17 +00:00
runtime PathProfiling.c: Get rid of using "inline". We may expect compiler shall optimize out "static" scope w/o "inline". 2011-11-08 12:03:14 +00:00
test Fix an overly general check in SimplifyIndvar to handle useless phi cycles. 2011-11-17 23:36:35 +00:00
tools Sink codegen optimization level into MCCodeGenInfo along side relocation model 2011-11-16 08:38:26 +00:00
unittests Fix Windows build, don't try to #include <pthread.h> when we know it's not 2011-11-14 22:10:23 +00:00
utils llvm-build: Attempt to work around a CMake Makefile generator bug that doesn't 2011-11-17 01:19:53 +00:00
.gitignore git: Add tools/lldb to the ignore list. 2011-11-10 22:55:50 +00:00
CMakeLists.txt Revert r144300 "llvm-config: Replace with C++ version (was llvm-config-2).", 2011-11-10 19:59:35 +00:00
CREDITS.TXT CREDITS.TXT: Add a line. (test commit) 2011-10-29 23:42:14 +00:00
LICENSE.TXT Happy new year. 2011-06-12 15:26:54 +00:00
LLVMBuild.txt build: Add initial cut at LLVMBuild.txt files. 2011-11-03 18:53:17 +00:00
Makefile build/Make: Define a TARGET_NATIVE_ARCH variable to be a bit more precise than 2011-11-12 00:18:02 +00:00
Makefile.common
…
Makefile.config.in build/Make: Define a TARGET_NATIVE_ARCH variable to be a bit more precise than 2011-11-12 00:18:02 +00:00
Makefile.rules build/Make: Switch over to using llvm-config-2 for dependencies one more (hopefully last) time, now that it also builds as a build tool. 2011-11-14 17:17:45 +00:00
README.txt test commit undo 2011-11-10 20:39:51 +00:00
configure Add an option '--enable-libcpp' that will have the compiler pass on 2011-11-11 22:51:42 +00:00
llvm.spec.in
…

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.

If you're writing a package for LLVM, see docs/Packaging.html for our
suggestions.