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Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

wasm-regparm.c
// RUN: %clang_cc1 -triple wasm32-unknown-unknown %s -fsyntax-only -verify
// RUN: %clang_cc1 -triple wasm64-unknown-unknown %s -fsyntax-only -verify

void __attribute__((regparm(2))) fc_f1(int i, int j, int k) {} // expected-error{{'regparm' is not valid on this platform}}