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| 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 /lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp | |
| 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 'lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp index c9289add79..fa913f6356 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp @@ -354,6 +354,10 @@ bool SelectionDAGISel::runOnMachineFunction(MachineFunction &mf) { TTI = getAnalysisIfAvailable<TargetTransformInfo>(); GFI = Fn.hasGC() ? &getAnalysis<GCModuleInfo>().getFunctionInfo(Fn) : 0; + TargetSubtargetInfo &ST = + const_cast<TargetSubtargetInfo&>(TM.getSubtarget<TargetSubtargetInfo>()); + ST.resetSubtargetFeatures(MF); + DEBUG(dbgs() << "\n\n\n=== " << Fn.getName() << "\n"); SplitCriticalSideEffectEdges(const_cast<Function&>(Fn), this); |