Andrew Trick 22d20c218a Adding IV chain generation to LSR. ... After collecting chains, check if any should be materialized. If so, hide the chained IV users from the LSR solver. LSR will only solve for the head of the chain. GenerateIVChains will then materialize the chained IV users by computing the IV relative to its previous value in the chain. In theory, chained IV users could be exposed to LSR's solver. This would be considerably complicated to implement and I'm not aware of a case where we need it. In practice it's more important to intelligently prune the search space of nontrivial loops before running the solver, otherwise the solver is often forced to prune the most optimal solutions. Hiding the chained users does this well, so that LSR is more likely to find the best IV for the chain as a whole. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147801 91177308-0d34-0410-b5e6-96231b3b80d8		2012-01-09 21:18:52 +00:00
..
Analysis	Change CaptureTracking to pass a Use* instead of a Value* when a value is	2011-12-28 23:24:21 +00:00
Archive
Assembler	Add an explicit test of the auto-upgrade functionality for the new	2011-12-12 11:23:11 +00:00
Bindings/Ocaml
Bitcode
BugPoint
CodeGen	Cleanup and FileCheck-ize a test.	2012-01-09 09:44:26 +00:00
DebugInfo	When recursing for the original size of a type, stop if we are at a	2011-12-16 23:42:45 +00:00
ExecutionEngine
Feature	The powers that be have decided that LLVM IR should now support 16-bit	2011-12-17 00:04:22 +00:00
Instrumentation/AddressSanitizer	[asan] one more test for asan instrumentation: (*a)++ should be instrumented only once.	2012-01-04 01:02:14 +00:00
Integer
lib
Linker	Link symbols with different visibilities according to the rules in the	2012-01-05 23:02:01 +00:00
MC	Split Finish into Finish and FinishImpl to have a common place to do end of	2012-01-07 03:13:18 +00:00
Object
Other	Deleting the json-bench-test until I understand why it is flaky.	2011-12-17 06:29:32 +00:00
Scripts
TableGen
Transforms	Adding IV chain generation to LSR.	2012-01-09 21:18:52 +00:00
Unit
Verifier	Teach the verifier to reject all non-constant arguments to the second	2011-12-12 04:36:02 +00:00
CMakeLists.txt	Adds a JSON parser and a benchmark (json-bench) to catch performance regressions.	2011-12-16 13:09:10 +00:00
lit.cfg
lit.site.cfg.in
Makefile
Makefile.tests
site.exp.in
TestRunner.sh