4 Commits

Author	SHA1	Message	Date
Dan Gohman	96bd946285	[WebAssembly] Use dominator information to improve BLOCK placement ... Always starting blocks at the top of their containing loops works, but creates unnecessarily deep nesting because it makes all blocks in a loop overlap. Refine the BLOCK placement algorithm to start blocks at nearest common dominating points instead, which significantly shrinks them and reduces overlapping. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253876 91177308-0d34-0410-b5e6-96231b3b80d8	2015-11-23 16:19:56 +00:00
Nico Weber	d5e4538cdc	Try to fix build more -- like r252392 but for WebAssembly. ... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252394 91177308-0d34-0410-b5e6-96231b3b80d8	2015-11-07 02:47:31 +00:00
Dan Gohman	e865fa75b6	[WebAssembly] Fix CFG stackification of nested loops. ... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@249187 91177308-0d34-0410-b5e6-96231b3b80d8	2015-10-02 21:11:36 +00:00
Dan Gohman	7146e900e8	[WebAssembly] Check in an initial CFG Stackifier pass ... This pass implements a simple algorithm for conversion from CFG to wasm's structured control flow. It doesn't yet handle multiple-entry loops; that will be added in a future patch. It also adds initial support for switch statements. Differential Revision: http://reviews.llvm.org/D12735 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@247818 91177308-0d34-0410-b5e6-96231b3b80d8	2015-09-16 16:51:30 +00:00