Sam Clegg 41d7047de5 [WebAssembly] Ensure bitcasts that would result in invalid wasm are removed by FixFunctionBitcasts ...

Rather than allowing invalid bitcasts to be lowered to wasm
call instructions that won't validate, generate wrappers that
contain unreachable thereby delaying the error until runtime.

Differential Revision: https://reviews.llvm.org/D49517

llvm-svn: 338744

2018-08-02 17:38:06 +00:00

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