diff options
| author | Lang Hames <lhames@gmail.com> | 2014-03-17 01:22:54 +0000 |
|---|---|---|
| committer | Lang Hames <lhames@gmail.com> | 2014-03-17 01:22:54 +0000 |
| commit | 7c8189c6d3f8cf8b35127547b37e3aec557030d3 (patch) | |
| tree | a222744a4e5b51905c23df386ca831c193291415 /llvm/test/tools/llvm-readobj/Inputs/cxx-cli-aux.cpp | |
| parent | 4633727686a661f54348a2943e39213de432cc8f (diff) | |
| download | bcm5719-llvm-7c8189c6d3f8cf8b35127547b37e3aec557030d3.tar.gz bcm5719-llvm-7c8189c6d3f8cf8b35127547b37e3aec557030d3.zip | |
[X86] New and improved VZeroUpperInserter optimization.
- Adds support for inserting vzerouppers before tail-calls.
This is enabled implicitly by having MachineInstr::copyImplicitOps preserve
regmask operands, which allows VZeroUpperInserter to see where tail-calls use
vector registers.
- Fixes a bug that caused the previous version of this optimization to miss some
vzeroupper insertion points in loops. (Loops-with-vector-code that followed
loops-without-vector-code were mistakenly overlooked by the previous version).
- New algorithm never revisits instructions.
Fixes <rdar://problem/16228798>
llvm-svn: 204021
Diffstat (limited to 'llvm/test/tools/llvm-readobj/Inputs/cxx-cli-aux.cpp')
0 files changed, 0 insertions, 0 deletions
