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| author | Chris Lattner <sabre@nondot.org> | 2003-10-23 16:29:12 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2003-10-23 16:29:12 +0000 |
| commit | d97487d1e0252a7b8fc27902b70562832d287e7d (patch) | |
| tree | fbaeaff9affa958a9bf3cb2485954e83a6364032 /include/llvm/CodeGen/MachineConstantPool.h | |
| parent | c8893fcc7157a0c28de341b4322c31560ddd2a82 (diff) | |
| download | external_llvm-d97487d1e0252a7b8fc27902b70562832d287e7d.zip external_llvm-d97487d1e0252a7b8fc27902b70562832d287e7d.tar.gz external_llvm-d97487d1e0252a7b8fc27902b70562832d287e7d.tar.bz2 | |
Actually share constants local to a function!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9417 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/CodeGen/MachineConstantPool.h')
| -rw-r--r-- | include/llvm/CodeGen/MachineConstantPool.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/include/llvm/CodeGen/MachineConstantPool.h b/include/llvm/CodeGen/MachineConstantPool.h index 74b7585..441a43a 100644 --- a/include/llvm/CodeGen/MachineConstantPool.h +++ b/include/llvm/CodeGen/MachineConstantPool.h @@ -30,10 +30,15 @@ class MachineConstantPool { public: /// getConstantPoolIndex - Create a new entry in the constant pool or return - /// an existing one. This should eventually allow sharing of duplicate - /// objects in the constant pool, but this is adequate for now. + /// an existing one. /// unsigned getConstantPoolIndex(Constant *C) { + // Check to see if we already have this constant. + // + // FIXME, this could be made much more efficient for large constant pools. + for (unsigned i = 0, e = Constants.size(); i != e; ++i) + if (Constants[i] == C) + return i; Constants.push_back(C); return Constants.size()-1; } |