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| author | Evan Cheng <evan.cheng@apple.com> | 2007-04-17 20:22:11 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2007-04-17 20:22:11 +0000 |
| commit | 38b7ca6651643f1f98e1f7b0e7f8a3499883804b (patch) | |
| tree | 6f7fc0bf2581c1163214bdc1aa3f0f7bfa6423eb /include/llvm/CodeGen/LiveVariables.h | |
| parent | e060b5385f29ea36a9736bfa509b5a7644932ec3 (diff) | |
| download | llvm-38b7ca6651643f1f98e1f7b0e7f8a3499883804b.tar.gz llvm-38b7ca6651643f1f98e1f7b0e7f8a3499883804b.tar.bz2 llvm-38b7ca6651643f1f98e1f7b0e7f8a3499883804b.tar.xz | |
Keep track of number of uses within the function per virtual register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36214 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/CodeGen/LiveVariables.h')
| -rw-r--r-- | include/llvm/CodeGen/LiveVariables.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/llvm/CodeGen/LiveVariables.h b/include/llvm/CodeGen/LiveVariables.h index d98ad34735..6c58815e27 100644 --- a/include/llvm/CodeGen/LiveVariables.h +++ b/include/llvm/CodeGen/LiveVariables.h @@ -83,12 +83,16 @@ public: /// is a bit set which uses the basic block number as an index. BitVector UsedBlocks; + /// NumUses - Number of uses of this register across the entire function. + /// + unsigned NumUses; + /// Kills - List of MachineInstruction's which are the last use of this /// virtual register (kill it) in their basic block. /// std::vector<MachineInstr*> Kills; - VarInfo() : DefInst(0) {} + VarInfo() : DefInst(0), NumUses(0) {} /// removeKill - Delete a kill corresponding to the specified /// machine instruction. Returns true if there was a kill |