necessary since gcov counts transitions between blocks. It can't see if you've
run every line in a straight-line function, so we add an edge for it to notice.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129905 91177308-0d34-0410-b5e6-96231b3b80d8
instrument the program to emit .gcda.
TODO: we should emit slightly different .gcda files when .gcno emission is off.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129903 91177308-0d34-0410-b5e6-96231b3b80d8
Break the arc-profile code out to a function like the notes emission code is,
and reorder the functions in the file.
The only functionality change is that we no longer modify the Module when the
Module has no debug info to use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129631 91177308-0d34-0410-b5e6-96231b3b80d8
does. Also mostly implement it. Still a work-in-progress, but generates legal
output on crafted test cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129630 91177308-0d34-0410-b5e6-96231b3b80d8
