Andrew Trick 2da8bc8a5f Various bits of framework needed for precise machine-level selection ... DAG scheduling during isel. Most new functionality is currently guarded by -enable-sched-cycles and -enable-sched-hazard. Added InstrItineraryData::IssueWidth field, currently derived from ARM itineraries, but could be initialized differently on other targets. Added ScheduleHazardRecognizer::MaxLookAhead to indicate whether it is active, and if so how many cycles of state it holds. Added SchedulingPriorityQueue::HasReadyFilter to allowing gating entry into the scheduler's available queue. ScoreboardHazardRecognizer now accesses the ScheduleDAG in order to get information about it's SUnits, provides RecedeCycle for bottom-up scheduling, correctly computes scoreboard depth, tracks IssueCount, and considers potential stall cycles when checking for hazards. ScheduleDAGRRList now models machine cycles and hazards (under flags). It tracks MinAvailableCycle, drives the hazard recognizer and priority queue's ready filter, manages a new PendingQueue, properly accounts for stall cycles, etc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122541 91177308-0d34-0410-b5e6-96231b3b80d8		2010-12-24 05:03:26 +00:00
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Analysis	Change all self assignments X=X to (void)X, so that we can turn on a	2010-12-23 00:58:24 +00:00
Archive	MemoryBuffer now return an error_code and returns a OwningPtr<MemoryBuffer> via an out parm.	2010-12-16 03:29:14 +00:00
AsmParser	Add missing standard headers. Patch by Joerg Sonnenberger!	2010-12-19 20:43:38 +00:00
Bitcode	Add missing standard headers. Patch by Joerg Sonnenberger!	2010-12-19 20:43:38 +00:00
CodeGen	Various bits of framework needed for precise machine-level selection	2010-12-24 05:03:26 +00:00
CompilerDriver	Support/PathV1: Deprecate get{Basename,Dirname,Suffix}.	2010-12-18 22:23:07 +00:00
ExecutionEngine	Remove unneeded zero arrays.	2010-12-04 15:28:22 +00:00
Linker	Fix whitespace.	2010-12-18 22:23:15 +00:00
MC	In llvm-mc parse a Hash token as a full line comment. Allows handling of	2010-12-24 00:12:02 +00:00
Object	Fix mismatched new[]/delete.	2010-12-17 09:56:50 +00:00
Support	Change all self assignments X=X to (void)X, so that we can turn on a	2010-12-23 00:58:24 +00:00
Target	Various bits of framework needed for precise machine-level selection	2010-12-24 05:03:26 +00:00
Transforms	When determining if we can fold (x >> C1) << C2, the bits that we need to verify are zero	2010-12-23 23:56:24 +00:00
VMCore	Change all self assignments X=X to (void)X, so that we can turn on a	2010-12-23 00:58:24 +00:00
Makefile	Add LLVMObject Library.	2010-11-15 03:21:41 +00:00