diff options
| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-06-08 23:44:45 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-06-08 23:44:45 +0000 |
| commit | 05ec712e7f75635abbdd84dced69f4a45fe0f541 (patch) | |
| tree | b4875d83d9b937cce865beb726faa7b574203874 /lib/CodeGen/VirtRegMap.h | |
| parent | 6660ed5f2f51a91e34664437f0218c52e80a95b8 (diff) | |
| download | llvm-05ec712e7f75635abbdd84dced69f4a45fe0f541.tar.gz llvm-05ec712e7f75635abbdd84dced69f4a45fe0f541.tar.bz2 llvm-05ec712e7f75635abbdd84dced69f4a45fe0f541.tar.xz | |
Reintroduce VirtRegRewriter.
OK, not really. We don't want to reintroduce the old rewriter hacks.
This patch extracts virtual register rewriting as a separate pass that
runs after the register allocator. This is possible now that
CodeGen/Passes.cpp can configure the full optimizing register allocator
pipeline.
The rewriter pass uses register assignments in VirtRegMap to rewrite
virtual registers to physical registers, and it inserts kill flags based
on live intervals.
These finalization steps are the same for the optimizing register
allocators: RABasic, RAGreedy, and PBQP.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158244 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/VirtRegMap.h')
| -rw-r--r-- | lib/CodeGen/VirtRegMap.h | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/lib/CodeGen/VirtRegMap.h b/lib/CodeGen/VirtRegMap.h index 8cac31137e..c3209854a4 100644 --- a/lib/CodeGen/VirtRegMap.h +++ b/lib/CodeGen/VirtRegMap.h @@ -177,13 +177,6 @@ namespace llvm { /// the specified stack slot void assignVirt2StackSlot(unsigned virtReg, int frameIndex); - /// rewrite - Rewrite all instructions in MF to use only physical registers - /// by mapping all virtual register operands to their assigned physical - /// registers. - /// - /// @param Indexes Optionally remove deleted instructions from indexes. - void rewrite(SlotIndexes *Indexes); - void print(raw_ostream &OS, const Module* M = 0) const; void dump() const; }; |