Yury Delendik b3857e4d35 [WebAssembly] Fix MRI.hasOneNonDBGUse assert in WebAssemblyRegStackify pass ...

Summary:
The OneUseDominatesOtherUses in the WebAssemblyRegStackify not properly validates register use using hasOneUse. Since we added/modified DBG_VALUE the assert started catching valid cases.

See also https://reviews.llvm.org/D49034#1247200

Fix verified by running the wasm waterfall.

Reviewed By: dschuff

Tags: #debug-info

Differential Revision: https://reviews.llvm.org/D49034

llvm-svn: 343154

2018-09-26 23:49:21 +00:00

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