Chandler Carruth a864748284 Revert the switch of loop-idiom to use the new dependence analysis. ... The new analysis is not yet ready for prime time. It has a *critical* flawed assumption, and some troubling shortages of testing. Until it's been hammered into better shape, let's stick with the working code. This should be easy to revert itself when the analysis is ready. Fixes PR14241, a miscompile of any memcpy-able loop which uses a pointer as the induction mechanism. If you have been seeing miscompiles in this revision range, you really want to test with this backed out. The results of this miscompile are a bit subtle as they can lead to downstream passes concluding things are impossible which are in fact possible. Thanks to David Blaikie for the majority of the reduction of this miscompile. I'll be checking in the test case in a non-revert commit. Revesions reverted here: r167045: LoopIdiom: Fix a serious missed optimization: we only turned top-level loops into memmove. r166877: LoopIdiom: Add checks to avoid turning memmove into an infinite loop. r166875: LoopIdiom: Recognize memmove loops. r166874: LoopIdiom: Replace custom dependence analysis with DependenceAnalysis. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167286 91177308-0d34-0410-b5e6-96231b3b80d8		2012-11-02 08:33:25 +00:00
..
Analysis	Remove LoopDependenceAnalysis.	2012-10-26 20:25:01 +00:00
Archive
Assembler	Don't crash if a .ll file contains a forward-reference that looks like a global	2012-10-11 00:38:25 +00:00
Bindings/Ocaml	Move TargetData to DataLayout.	2012-10-08 16:39:34 +00:00
Bitcode	Change encoding of instruction operands in bitcode binaries to be relative	2012-10-11 20:20:40 +00:00
BugPoint	Fix unexpected passes. These test do work with LTO on linux. I tested both	2012-10-26 02:19:02 +00:00
CodeGen	test/CodeGen/X86/fp-fast.ll: Add +avx.	2012-11-01 02:13:45 +00:00
DebugInfo	Make sure to generate the right kind of MDNode for enum forward declarations.	2012-10-05 01:49:14 +00:00
ExecutionEngine	Align the data section correctly when loading an ELF file.	2012-10-29 10:47:07 +00:00
Feature	Change ForceSizeOpt attribute into MinSize attribute	2012-10-30 16:32:52 +00:00
Instrumentation	[asan] don't instrument globals that we've created ourselves (reduces the binary size a bit)	2012-11-01 13:42:40 +00:00
Integer
Linker	Convert the uses of '|&' to use '2>&1 |' instead, which works on old	2012-07-02 18:37:59 +00:00
MC	Add support for generating dwarf debugging info with assembly files	2012-11-01 17:31:35 +00:00
Object	Fix SymbolRef::getAddress implementation for ELF. The 'value' field in symbol table entry should be treated differently for relocatable and relocated files. This patch fixes symbol addresses printed by llvm-nm for executables and shared objects.	2012-09-21 07:08:08 +00:00
Other	Revert the series of commits starting with r166578 which introduced the	2012-11-01 08:07:29 +00:00
Scripts
TableGen	Re-work bit/bits value resolving in tblgen	2012-09-06 23:32:48 +00:00
Transforms	Revert the switch of loop-idiom to use the new dependence analysis.	2012-11-02 08:33:25 +00:00
Unit
Verifier	Assert that dominates is not given a multiple edge. Finding out if we have	2012-08-17 18:21:28 +00:00
YAMLParser	Convert the uses of '|&' to use '2>&1 |' instead, which works on old	2012-07-02 18:37:59 +00:00
CMakeLists.txt	[CMake] Add llvm-mcmarkup to check-llvm.	2012-11-01 02:13:50 +00:00
lit.cfg	llvm/test/lit.cfg: Don't use mcjit to ppc32 yet, not ready.	2012-11-01 14:28:51 +00:00
lit.site.cfg.in	test: Add a lit config variable to check if LTO is enabled.	2012-10-18 20:43:11 +00:00
Makefile	test: Add a lit config variable to check if LTO is enabled.	2012-10-18 20:43:11 +00:00
Makefile.tests
TestRunner.sh