Cong Hou 5d51a489ae Replace all weight-based interfaces in MBB with probability-based interfaces, and update all uses of old interfaces. ... (This is the second attempt to submit this patch. The first caused two assertion failures and was reverted. See https://llvm.org/bugs/show_bug.cgi?id=25687) The patch in http://reviews.llvm.org/D13745 is broken into four parts: 1. New interfaces without functional changes (http://reviews.llvm.org/D13908). 2. Use new interfaces in SelectionDAG, while in other passes treat probabilities as weights (http://reviews.llvm.org/D14361). 3. Use new interfaces in all other passes. 4. Remove old interfaces. This patch is 3+4 above. In this patch, MBB won't provide weight-based interfaces any more, which are totally replaced by probability-based ones. The interface addSuccessor() is redesigned so that the default probability is unknown. We allow unknown probabilities but don't allow using it together with known probabilities in successor list. That is to say, we either have a list of successors with all known probabilities, or all unknown probabilities. In the latter case, we assume each successor has 1/N probability where N is the number of successors. An assertion checks if the user is attempting to add a successor with the disallowed mixed use as stated above. This can help us catch many misuses. All uses of weight-based interfaces are now updated to use probability-based ones. Differential revision: http://reviews.llvm.org/D14973 llvm-svn: 254377		2015-12-01 05:29:22 +00:00
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Analysis
Assembler	AsmParser: Make the code for parsing unnamed aliases more closely resemble that for unnamed globals.	2015-11-25 02:54:07 +00:00
Bindings
Bitcode
BugPoint
CodeGen	Replace all weight-based interfaces in MBB with probability-based interfaces, and update all uses of old interfaces.	2015-12-01 05:29:22 +00:00
DebugInfo	[Hexagon] Disabling failing safestack test	2015-12-01 04:56:25 +00:00
Examples
ExecutionEngine
Feature	Have 'optnone' respect the -fast-isel=false option.	2015-11-30 21:56:16 +00:00
FileCheck
Instrumentation	[sanitizer] [dfsan] Unify aarch64 mapping	2015-11-27 12:42:39 +00:00
Integer
JitListener
LibDriver
Linker	This reverts commit r254336 and r254344.	2015-11-30 23:54:19 +00:00
LTO
MC	[mips][microMIPS] Implement LBUX, LHX, LWX, MAQ_S[A].W.PHL, MAQ_S[A].W.PHR, MFHI, MFLO, MTHI and MTLO instructions	2015-11-30 12:58:39 +00:00
Object
Other
SymbolRewriter
TableGen	Add new vector types for 512-, 1024- and 2048-bit vectors	2015-11-24 13:07:35 +00:00
tools	[llvm-dwp] Initial partial prototype	2015-12-01 00:48:39 +00:00
Transforms	[safestack] Protect byval function arguments.	2015-12-01 00:40:05 +00:00
Unit
Verifier	Disallow aliases to available_externally.	2015-11-26 19:22:59 +00:00
YAMLParser
.clang-format
CMakeLists.txt	[llvm-dwp] Add missing dependency from llvm tests on the llvm-dwp tool	2015-12-01 00:57:05 +00:00
lit.cfg	check-llvm: Introduce the new feature "tls".	2015-12-01 01:14:58 +00:00
lit.site.cfg.in
Makefile
Makefile.tests
TestRunner.sh