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| author | Justin Bogner <mail@justinbogner.com> | 2016-08-26 22:29:36 +0000 |
|---|---|---|
| committer | Justin Bogner <mail@justinbogner.com> | 2016-08-26 22:29:36 +0000 |
| commit | 39b6b2f0b0e71856eb17e0eb6ca84a35f0d2b7ab (patch) | |
| tree | 205212f8bb8618ca371e8233ec848c9322cf9e83 | |
| parent | e609a9a80a1dcf8d4eb95a679972e22c5aa0c8cb (diff) | |
| download | llvm-39b6b2f0b0e71856eb17e0eb6ca84a35f0d2b7ab.zip llvm-39b6b2f0b0e71856eb17e0eb6ca84a35f0d2b7ab.tar.gz llvm-39b6b2f0b0e71856eb17e0eb6ca84a35f0d2b7ab.tar.bz2 | |
TableGen: Switch from a std::map to a DenseMap in CodeGenSubRegIndex. NFC
This mapping is between pointers, which DenseMap is particularly good
at. Most targets aren't really affected, but if there's a lot of
subregister composition this can shave off a good chunk of time from
generating registers.
llvm-svn: 279875
| -rw-r--r-- | llvm/utils/TableGen/CodeGenRegisters.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/llvm/utils/TableGen/CodeGenRegisters.h b/llvm/utils/TableGen/CodeGenRegisters.h index b8d47aa4..7a8fa12 100644 --- a/llvm/utils/TableGen/CodeGenRegisters.h +++ b/llvm/utils/TableGen/CodeGenRegisters.h @@ -74,8 +74,7 @@ namespace llvm { std::string getQualifiedName() const; // Map of composite subreg indices. - typedef std::map<CodeGenSubRegIndex *, CodeGenSubRegIndex *, - deref<llvm::less>> CompMap; + typedef DenseMap<CodeGenSubRegIndex *, CodeGenSubRegIndex *> CompMap; // Returns the subreg index that results from composing this with Idx. // Returns NULL if this and Idx don't compose. |