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Author SHA1 Message Date
Dan Gohman cc38ba1954 [WebAssembly] Minor code simplification. NFC. 
llvm-svn: 256300
 2015-12-22 23:39:16 +00:00
Dan Gohman f0b165a7f8 [WebAssembly] Implement ReverseBranchCondition, and re-enable MachineBlockPlacement 
This patch introduces a codegen-only instruction currently named br_unless,
which makes it convenient to implement ReverseBranchCondition and re-enable
the MachineBlockPlacement pass. Then in a late pass, it lowers br_unless
back into br_if.

Differential Revision: http://reviews.llvm.org/D14995

llvm-svn: 254826
 2015-12-05 03:03:35 +00:00