Chandler Carruth 2e38cf961d Introduce a loop block rotation optimization to the new block placement ... pass. This is designed to achieve one of the important optimizations that the old code placement pass did, but more simply. This is a somewhat rough and *very* conservative version of the transform. We could get a lot fancier here if there are profitable cases to do so. In particular, this only looks for a single pattern, it insists that the loop backedge being rotated away is the last backedge in the chain, and it doesn't provide any means of doing better in-loop placement due to the rotation. However, it appears that it will handle the important loops I am finding in the LLVM test suite. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145158 91177308-0d34-0410-b5e6-96231b3b80d8		2011-11-27 00:38:03 +00:00
..
Analysis	Don't forget to check FlagNW when determining whether an AddRecExpr will wrap	2011-11-09 07:11:37 +00:00
Archive
Assembler	Fix a typo in the bitcode reader in the handling of atomic stores. Reported by David Meyer on llvmdev.	2011-09-19 19:41:28 +00:00
Bindings/Ocaml	OCaml bindings: add some missing functions and testcases.	2011-10-14 20:38:33 +00:00
Bitcode	The bitcode reader can create an shuffle with a place holder mask which it will	2011-10-26 00:34:48 +00:00
BugPoint
CodeGen	Introduce a loop block rotation optimization to the new block placement	2011-11-27 00:38:03 +00:00
DebugInfo	The dwarf standard says that the only differences between a out-of-line	2011-11-12 01:57:54 +00:00
ExecutionEngine
Feature
Instrumentation/AddressSanitizer	[asan] do not instrument threadlocal globals, this is buggy	2011-11-23 02:10:54 +00:00
Integer
lib	tests: Rip out a bunch of now unused test code relating to use of llvm-gcc in LLVM tests.	2011-10-27 20:59:26 +00:00
Linker	Let this test pass even if 'int' is somewhere in its directory path.	2011-10-15 18:07:16 +00:00
MC	This patch contains support for encoding FMA4 instructions and	2011-11-25 19:33:42 +00:00
Object	Move x86-specific tests into X86 folder.	2011-11-01 03:21:48 +00:00
Other
Scripts
TableGen	XFAIL test on leak checkers.	2011-10-24 17:24:05 +00:00
Transforms	FileCheck-ize this test and make it more precise. This is in preparation	2011-11-26 08:24:25 +00:00
Unit	tests: Rip out a bunch of now unused test code relating to use of llvm-gcc in LLVM tests.	2011-10-27 20:59:26 +00:00
Verifier
CMakeLists.txt	build/cmake: Change to require Python be available.	2011-11-04 23:04:05 +00:00
lit.cfg	Update lit's list of tools.	2011-11-05 16:20:52 +00:00
lit.site.cfg.in	tests: Rip out a bunch of now unused test code relating to use of llvm-gcc in LLVM tests.	2011-10-27 20:59:26 +00:00
Makefile	build/make/test: Get rid of unused BUGPOINT_TOPTS variable.	2011-11-16 23:56:03 +00:00
Makefile.tests
site.exp.in	tests: Rip out a bunch of now unused test code relating to use of llvm-gcc in LLVM tests.	2011-10-27 20:59:26 +00:00
TestRunner.sh