Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

altivec-asm.S
// RUN: %clang -target powerpc64-linux-gnu -maltivec -S %s -o - | FileCheck %s
// RUN: %clang -target powerpc64le-linux-gnu -maltivec -S %s -o - | FileCheck %s
// Verify that assembling an empty file does not auto-include altivec.h.
// CHECK-NOT: static vector