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3 Commits

Author SHA1 Message Date
Joerg Sonnenberger
839f6c1a88 Remove exception handling usage from tblgen. 
Most places can use PrintFatalError as the unwinding mechanism was not
used for anything other than printing the error. The single exception
was CodeGenDAGPatterns.cpp, where intermediate errors during type
resolution were ignored to simplify incremental platform development.
This use is replaced by an error flag in TreePattern and bailout earlier
in various places if it is set. 

llvm-svn: 166712
 2012-10-25 20:33:17 +00:00
David Blaikie
097e5ab972 Remove unused member & unnecessary semicolon. 
llvm-svn: 166694
 2012-10-25 17:04:55 +00:00
Sebastian Pop
af468d8d5a add TableGen support to create relationship maps between instructions 
Relationship maps are represented as InstrMapping records which are parsed by
TableGen and the information is used to construct mapping tables to represent
appropriate relations between instructions. These tables are emitted into
XXXGenInstrInfo.inc file along with the functions to query them.

Patch by Jyotsna Verma <jverma@codeaurora.org>.

llvm-svn: 166685
 2012-10-25 15:54:06 +00:00