llvm-project

Author	SHA1	Message	Date
Chad Rosier	20e4d9e21d	Address a few coding style issues. NFC. llvm-svn: 272838	2016-06-15 21:14:02 +00:00
Benjamin Kramer	bc2f4fb691	[RegUsageInfoCollector] Drop unneccesary const_cast. NFC. llvm-svn: 272509	2016-06-12 13:32:23 +00:00
Chandler Carruth	3ecbd9d287	Use const_cast to cast away constness. This silences a warning. llvm-svn: 272458	2016-06-11 08:01:57 +00:00
Mehdi Amini	bbacddfe92	Interprocedural Register Allocation (IPRA) Analysis Add an option to enable the analysis of MachineFunction register usage to extract the list of clobbered registers. When enabled, the CodeGen order is changed to be bottom up on the Call Graph. The analysis is split in two parts, RegUsageInfoCollector is the MachineFunction Pass that runs post-RA and collect the list of clobbered registers to produce a register mask. An immutable pass, RegisterUsageInfo, stores the RegMask produced by RegUsageInfoCollector, and keep them available. A future tranformation pass will use this information to update every call-sites after instruction selection. Patch by Vivek Pandya <vivekvpandya@gmail.com> Differential Revision: http://reviews.llvm.org/D20769 llvm-svn: 272403	2016-06-10 16:19:46 +00:00