Derek Schuff e9e6891b2d [WebAssembly] Make register stackification more conservative ...

Register stackification currently checks VNInfo for changes. Make that
more accurate by testing each intervening instruction for any other defs
to the same virtual register.

Patch by Jacob Gravelle

Differential Revision: https://reviews.llvm.org/D24942

llvm-svn: 282886

2016-09-30 18:02:54 +00:00

32 KiB

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