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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AArch64	MIR Serialization: Use the global value syntax for global value memory operands.	2015-08-20 00:20:03 +00:00
AMDGPU	MIR Serialization: Change MIR syntax - use custom syntax for MBBs.	2015-08-13 23:10:16 +00:00
ARM	MIR Serialization: Serialize the '.cfi_same_value' CFI directive.	2015-08-14 21:55:58 +00:00
Generic	MIR Serialization: Change MIR syntax - use custom syntax for MBBs.	2015-08-13 23:10:16 +00:00
Mips	[mips][mips16] MIPS16 is not a CPU/Architecture but is an ASE.	2015-10-15 14:34:23 +00:00
NVPTX	MIR Serialization: Change MIR syntax - use custom syntax for MBBs.	2015-08-13 23:10:16 +00:00
PowerPC	Fix PR 24724 - The implicit register verifier shouldn't assume certain operand	2015-09-10 14:04:34 +00:00
X86	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
lit.local.cfg	Resubmit r237954 (MIR Serialization: print and parse LLVM IR using MIR format).	2015-05-27 18:02:19 +00:00