diff options
| author | Bob Wilson <bob.wilson@apple.com> | 2010-03-19 19:05:41 +0000 |
|---|---|---|
| committer | Bob Wilson <bob.wilson@apple.com> | 2010-03-19 19:05:41 +0000 |
| commit | 80d23705e6df49a41298fd345be6f8a8d72f4fd0 (patch) | |
| tree | 5fcd35bff2422a5df38e14c1dbe7f05a2ed40d92 /lib/CodeGen/MachineFunction.cpp | |
| parent | 602b40f0d06d6275cbe73de2ac3b6b6a7dc1d46d (diff) | |
Stop trying to merge identical jump tables. This had been inadvertently
disabled for several months (since svn r88806) and no one noticed. My fix
for pr6543 yesterday reenabled it, but broke the ARM port's code for using
TBB/TBH. Rather than adding a target hook to disable merging for Thumb2 only,
I'm just taking this out. It is not common to have identical jump tables,
the code we used to merge them was O(N^2), and it only helps code size, not
performance.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98977 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/MachineFunction.cpp')
| -rw-r--r-- | lib/CodeGen/MachineFunction.cpp | 11 |
1 files changed, 0 insertions, 11 deletions
diff --git a/lib/CodeGen/MachineFunction.cpp b/lib/CodeGen/MachineFunction.cpp index 0e9ea76c12..5772b2f2d1 100644 --- a/lib/CodeGen/MachineFunction.cpp +++ b/lib/CodeGen/MachineFunction.cpp @@ -605,17 +605,6 @@ unsigned MachineJumpTableInfo::createJumpTableIndex( return JumpTables.size()-1; } -/// getJumpTableIndex - Return the index for an existing jump table entry in -/// the jump table info. -unsigned MachineJumpTableInfo::getJumpTableIndex( - const std::vector<MachineBasicBlock*> &DestBBs) { - for (unsigned i = 0, e = JumpTables.size(); i != e; ++i) - if (JumpTables[i].MBBs == DestBBs) - return i; - assert(false && "getJumpTableIndex failed to find matching table"); - return ~0; -} - /// ReplaceMBBInJumpTables - If Old is the target of any jump tables, update /// the jump tables to branch to New instead. bool MachineJumpTableInfo::ReplaceMBBInJumpTables(MachineBasicBlock *Old, |