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| author | dim <dim@FreeBSD.org> | 2011-05-02 19:34:44 +0000 |
|---|---|---|
| committer | dim <dim@FreeBSD.org> | 2011-05-02 19:34:44 +0000 |
| commit | 2b066988909948dc3d53d01760bc2d71d32f3feb (patch) | |
| tree | fc5f365fb9035b2d0c622bbf06c9bbe8627d7279 /lib/CodeGen/RegAllocBase.h | |
| parent | c80ac9d286b8fcc6d1ee5d76048134cf80aa9edc (diff) | |
| download | FreeBSD-src-2b066988909948dc3d53d01760bc2d71d32f3feb.zip FreeBSD-src-2b066988909948dc3d53d01760bc2d71d32f3feb.tar.gz | |
Vendor import of llvm trunk r130700:
http://llvm.org/svn/llvm-project/llvm/trunk@130700
Diffstat (limited to 'lib/CodeGen/RegAllocBase.h')
| -rw-r--r-- | lib/CodeGen/RegAllocBase.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/lib/CodeGen/RegAllocBase.h b/lib/CodeGen/RegAllocBase.h index 5af0ce7..f431d5a 100644 --- a/lib/CodeGen/RegAllocBase.h +++ b/lib/CodeGen/RegAllocBase.h @@ -61,6 +61,11 @@ class LiveVirtRegQueue; /// assignment order. class RegAllocBase { LiveIntervalUnion::Allocator UnionAllocator; + + // Cache tag for PhysReg2LiveUnion entries. Increment whenever virtual + // registers may have changed. + unsigned UserTag; + protected: // Array of LiveIntervalUnions indexed by physical register. class LiveUnionArray { @@ -92,7 +97,7 @@ protected: // query on a new live virtual register. OwningArrayPtr<LiveIntervalUnion::Query> Queries; - RegAllocBase(): TRI(0), MRI(0), VRM(0), LIS(0) {} + RegAllocBase(): UserTag(0), TRI(0), MRI(0), VRM(0), LIS(0) {} virtual ~RegAllocBase() {} @@ -104,7 +109,7 @@ protected: // before querying a new live virtual register. This ties Queries and // PhysReg2LiveUnion together. LiveIntervalUnion::Query &query(LiveInterval &VirtReg, unsigned PhysReg) { - Queries[PhysReg].init(&VirtReg, &PhysReg2LiveUnion[PhysReg]); + Queries[PhysReg].init(UserTag, &VirtReg, &PhysReg2LiveUnion[PhysReg]); return Queries[PhysReg]; } |
