Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

2011-06-06-fgetsign80bit.ll
; RUN: llc -mtriple=x86_64-- < %s
define i32 @signbitl(x86_fp80 %x) nounwind uwtable readnone {
entry:
  %tmp4 = bitcast x86_fp80 %x to i80
  %tmp4.lobit = lshr i80 %tmp4, 79
  %tmp = trunc i80 %tmp4.lobit to i32
  ret i32 %tmp
}