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SjLj based exception handling unwinding support. This patch is nasty, brutish

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and short. Well, it's kinda short. Definitely nasty and brutish.

The front-end generates the register/unregister calls into the SjLj runtime,
call-site indices and landing pad dispatch. The back end fills in the LSDA
with the call-site information provided by the front end. Catch blocks are
not yet implemented.

Built on Darwin and verified no llvm-core "make check" regressions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78625 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach
2009-08-11 00:09:57 +00:00
parent 3a1f0f6785
commit 1b747ad8a0
25 changed files with 332 additions and 79 deletions
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3
lib/CodeGen/MachineFunction.cpp
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@ -93,6 +93,9 @@ MachineFunction::MachineFunction(Function *F,
MachineConstantPool(TM.getTargetData());
Alignment = TM.getTargetLowering()->getFunctionAlignment(F);
CallSiteIndex = 0;
MaxCallSiteIndex = 0;
// Set up jump table.
const TargetData &TD = *TM.getTargetData();
bool IsPic = TM.getRelocationModel() == Reloc::PIC_;