[PowerPC] eliminate unconditional branch to the next instruction
This patch makes analyzeBranch eliminate unconditional branch to the next instruction.
After basic blocks are re-organized by optimizers, such as machine block placement, a BB may end with an unconditional branch to the next (fallthrough) BB. This patch removes such redundant branch instruction.
Differential Revision: https://reviews.llvm.org/D37730
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@314297 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed