Xinliang David Li 7fbf182d27 [PGO] InstrPGO and coverage code refactoring (NFC)
Introduce a new class InstrProfSymtab to abstract
the PGO symbol table for prof and coverage reader.
The symtab is is to lookup function's PGO name
using function keys. The first user of the class
is CoverageMapping Reader. More will follow.

llvm-svn: 255862
2015-12-17 00:53:37 +00:00
..