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Author SHA1 Message Date
Krzysztof Parzyszek ca93f5e605 [Hexagon] Assume all extendable branches to be of size 8 in relaxation 
The branch relaxation pass collects sizes of all instructions at the
beginning, before any changes have been made. It then performs one pass
over all branches to see which ones need to be extended. It does not
account for the case when a previously valid branch becomes out-of-range
due to relaxing other branches.
This approach fixes this problem by assuming from the beginning that
all extendable branches have been extended. This may cause unneeded
relaxation in some cases, but avoids iteration and recomputing instruction
sizes.

llvm-svn: 328360
 2018-03-23 19:47:13 +00:00
Eugene Zelenko 8208592707 [Hexagon] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC). 
llvm-svn: 289604
 2016-12-13 22:13:50 +00:00
Mehdi Amini 117296c0a0 Use StringRef in Pass/PassManager APIs (NFC) 
llvm-svn: 283004
 2016-10-01 02:56:57 +00:00
Krzysztof Parzyszek f0b34a5c57 [Hexagon] Referencify MachineInstr in HexagonInstrInfo, NFC 
llvm-svn: 277220
 2016-07-29 21:49:42 +00:00
Jacques Pienaar 71c30a14b7 Rename AnalyzeBranch* to analyzeBranch*. 
Summary: NFC. Rename AnalyzeBranch/AnalyzeBranchPredicate to analyzeBranch/analyzeBranchPredicate to follow LLVM coding style and be consistent with TargetInstrInfo's analyzeCompare and analyzeSelect.

Reviewers: tstellarAMD, mcrosier

Subscribers: mcrosier, jholewinski, jfb, arsenm, dschuff, jyknight, dsanders, nemanjai

Differential Revision: https://reviews.llvm.org/D22409

llvm-svn: 275564
 2016-07-15 14:41:04 +00:00
Krzysztof Parzyszek 7b59ae28aa [Hexagon] Implement branch relaxation 
Patch by Sirish Pande.

llvm-svn: 266792
 2016-04-19 18:30:18 +00:00