[WebAssembly] Initial varargs support.

Description

[WebAssembly] Initial varargs support.

Full varargs support will depend on prologue/epilogue support, but this patch
gets us started with most of the basic infrastructure.

Differential Revision: http://reviews.llvm.org/D15231

Details

Committed
djgDec 4 2015, 3:22 PM
Differential Revision
D15231: [WebAssembly] Varargs support
Parents
rL254798: [Docs] One more cleanup of -fsanitize= section.
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