diff options
| author | Bill Wendling <isanbard@gmail.com> | 2013-02-15 22:31:27 +0000 |
|---|---|---|
| committer | Bill Wendling <isanbard@gmail.com> | 2013-02-15 22:31:27 +0000 |
| commit | 789cb5df9ca61f8a3794a4fbde7cc020fd00a02a (patch) | |
| tree | 43ab429aa1d42074e8dde401bfdad99ae74177ad /include | |
| parent | 4fb25b7d799ea27a2c98a4d9bcf7469cc685db47 (diff) | |
Use the 'target-features' and 'target-cpu' attributes to reset the subtarget features.
If two functions require different features (e.g., `-mno-sse' vs. `-msse') then
we want to honor that, especially during LTO. We can do that by resetting the
subtarget's features depending upon the 'target-feature' attribute.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175314 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include')
| -rw-r--r-- | include/llvm/Target/TargetSubtargetInfo.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/llvm/Target/TargetSubtargetInfo.h b/include/llvm/Target/TargetSubtargetInfo.h index 3f22f47a0d..b2d405de84 100644 --- a/include/llvm/Target/TargetSubtargetInfo.h +++ b/include/llvm/Target/TargetSubtargetInfo.h @@ -19,6 +19,7 @@ namespace llvm { +class MachineFunction; class MachineInstr; class SDep; class SUnit; @@ -73,6 +74,9 @@ public: // the latency of a schedule dependency. virtual void adjustSchedDependency(SUnit *def, SUnit *use, SDep& dep) const { } + + /// \brief Reset the features for the subtarget. + virtual void resetSubtargetFeatures(const MachineFunction *MF) { } }; } // End llvm namespace |