K 10
svn:author
V 6
brooks
K 8
svn:date
V 27
2020-08-14T18:35:40.090515Z
K 7
svn:log
V 396
Update to a new snapshot and add FLANG and MLIR options

Add two new options:
 - FLANG (Fortran 2018 compiler)
 - MLIR (Multi-Level Intermediate Representation support)

MLIR is enabled by default and required by FLANG. FLANG is not yet
enabled by default because it is broken with LLVM_LINK_LLVM_DYLIB=ON
which results in a truly enormous package (500+MB .txz).

PR:		248591
Sponsored by:	DARPA

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