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Mirror of https://github.com/RPCS3/llvm-mirror
00daa6cd20
Summary: Now that there is a one-to-one mapping from MachineFunction to WinEHFuncInfo, we don't need to use a DenseMap to select the right WinEHFuncInfo for the current funclet. The main challenge here is that X86WinEHStatePass is an IR pass that doesn't have access to the MachineFunction. I gave it its own WinEHFuncInfo object that it uses to calculate state numbers, which it then throws away. As long as nobody creates or removes EH pads between this pass and SDAG construction, we will get the same state numbers. The other thing X86WinEHStatePass does is to mark the EH registration node. Instead of communicating which alloca was the registration through WinEHFuncInfo, I added the llvm.x86.seh.ehregnode intrinsic. This intrinsic generates no code and simply marks the alloca in use. Reviewers: JCTremoulet Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D14668 llvm-svn: 253378 |
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| README.txt | ||
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