diff options
| author | Lang Hames <lhames@gmail.com> | 2009-11-03 23:52:08 +0000 |
|---|---|---|
| committer | Lang Hames <lhames@gmail.com> | 2009-11-03 23:52:08 +0000 |
| commit | d6a717cba117dae9a90a373698f691d9452c9c49 (patch) | |
| tree | 85451aa736c6b83933b5646d0b81dac7f8145a8c /lib/CodeGen/StackSlotColoring.cpp | |
| parent | 24a1825a08acd458d350140f0706f3cbc5bf6a2e (diff) | |
| download | external_llvm-d6a717cba117dae9a90a373698f691d9452c9c49.zip external_llvm-d6a717cba117dae9a90a373698f691d9452c9c49.tar.gz external_llvm-d6a717cba117dae9a90a373698f691d9452c9c49.tar.bz2 | |
The Indexes Patch.
This introduces a new pass, SlotIndexes, which is responsible for numbering
instructions for register allocation (and other clients). SlotIndexes numbering
is designed to match the existing scheme, so this patch should not cause any
changes in the generated code.
For consistency, and to avoid naming confusion, LiveIndex has been renamed
SlotIndex.
The processImplicitDefs method of the LiveIntervals analysis has been moved
into its own pass so that it can be run prior to SlotIndexes. This was
necessary to match the existing numbering scheme.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85979 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/StackSlotColoring.cpp')
| -rw-r--r-- | lib/CodeGen/StackSlotColoring.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/CodeGen/StackSlotColoring.cpp b/lib/CodeGen/StackSlotColoring.cpp index eed2daa..c299192 100644 --- a/lib/CodeGen/StackSlotColoring.cpp +++ b/lib/CodeGen/StackSlotColoring.cpp @@ -98,6 +98,8 @@ namespace { virtual void getAnalysisUsage(AnalysisUsage &AU) const { AU.setPreservesCFG(); + AU.addRequired<SlotIndexes>(); + AU.addPreserved<SlotIndexes>(); AU.addRequired<LiveStacks>(); AU.addRequired<VirtRegMap>(); AU.addPreserved<VirtRegMap>(); |