diff options
author | Dan Gohman <dan433584@gmail.com> | 2015-12-23 00:22:04 +0000 |
---|---|---|
committer | Dan Gohman <dan433584@gmail.com> | 2015-12-23 00:22:04 +0000 |
commit | 97cdf9dc307204455ec70756226c9799afddcd4c (patch) | |
tree | 8bee5cfa657d70fe0c2d53aa28921ac0b7211ab5 /lib/Target/WebAssembly/WebAssemblyRegNumbering.cpp | |
parent | 982e9b7f0d95a061f9253edf5bbc2689f82a0e32 (diff) |
[WebAssembly] Add a TODO comment for a possible future optimization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256306 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/WebAssembly/WebAssemblyRegNumbering.cpp')
-rw-r--r-- | lib/Target/WebAssembly/WebAssemblyRegNumbering.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Target/WebAssembly/WebAssemblyRegNumbering.cpp b/lib/Target/WebAssembly/WebAssemblyRegNumbering.cpp index 0a945336a2b..f621db070b5 100644 --- a/lib/Target/WebAssembly/WebAssemblyRegNumbering.cpp +++ b/lib/Target/WebAssembly/WebAssemblyRegNumbering.cpp @@ -82,7 +82,8 @@ bool WebAssemblyRegNumbering::runOnMachineFunction(MachineFunction &MF) { } // Then assign regular WebAssembly registers for all remaining used - // virtual registers. + // virtual registers. TODO: Consider sorting the registers by frequency of + // use, to maximize usage of small immediate fields. unsigned NumArgRegs = MFI.getParams().size(); unsigned NumVRegs = MF.getRegInfo().getNumVirtRegs(); unsigned NumStackRegs = 0; |