diff options
| author | Dan Gohman <gohman@apple.com> | 2008-09-03 15:56:16 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2008-09-03 15:56:16 +0000 |
| commit | 3f62940561760fe5dcc8675853be57ee4ac8069a (patch) | |
| tree | f165fbd55c3f61a5325ffcecc5448533ffb6c102 /lib/CodeGen/MachineModuleInfo.cpp | |
| parent | d0ac373660de64fe210e50458c7702432b3f9605 (diff) | |
Fix addRegisterDead and addRegisterKilled to be more thorough
when searching for redundant subregister dead/kill bits.
Previously it was common to see instructions marked like this:
"RET %EAX<imp-use,kill>, %AX<imp-use,kill>"
With this change, addRegisterKilled continues scanning after
finding the %EAX operand, so it proceeds to discover the
redundant %AX kill and eliminates it, producing this:
"RET %EAX<imp-use,kill>"
This currently has no effect on the generated code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55698 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/MachineModuleInfo.cpp')
0 files changed, 0 insertions, 0 deletions