diff options
| author | Bob Wilson <bob.wilson@apple.com> | 2010-03-16 23:40:32 +0000 |
|---|---|---|
| committer | Bob Wilson <bob.wilson@apple.com> | 2010-03-16 23:40:32 +0000 |
| commit | 8ef7e2159fc1cccf6308d20f5ef7872c344e2253 (patch) | |
| tree | 9c6fea0937303ee592cba333c4fe869bec5e728f /lib/CodeGen/BranchFolding.cpp | |
| parent | d1092146fc9355099588c5742bdc78d6787bec85 (diff) | |
| download | external_llvm-8ef7e2159fc1cccf6308d20f5ef7872c344e2253.zip external_llvm-8ef7e2159fc1cccf6308d20f5ef7872c344e2253.tar.gz external_llvm-8ef7e2159fc1cccf6308d20f5ef7872c344e2253.tar.bz2 | |
Remove a check that can no longer be true, after r84803.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98694 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/BranchFolding.cpp')
| -rw-r--r-- | lib/CodeGen/BranchFolding.cpp | 16 |
1 files changed, 0 insertions, 16 deletions
diff --git a/lib/CodeGen/BranchFolding.cpp b/lib/CodeGen/BranchFolding.cpp index 13ae43d..b45abc7 100644 --- a/lib/CodeGen/BranchFolding.cpp +++ b/lib/CodeGen/BranchFolding.cpp @@ -1143,22 +1143,6 @@ ReoptimizeBlock: !IsBetterFallthrough(PriorTBB, MBB)) DoTransform = false; - // We don't want to do this transformation if we have control flow like: - // br cond BB2 - // BB1: - // .. - // jmp BBX - // BB2: - // .. - // ret - // - // In this case, we could actually be moving the return block *into* a - // loop! - if (DoTransform && !MBB->succ_empty() && - (!PriorTBB->canFallThrough() || PriorTBB->empty())) - DoTransform = false; - - if (DoTransform) { // Reverse the branch so we will fall through on the previous true cond. SmallVector<MachineOperand, 4> NewPriorCond(PriorCond); |