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Beginning of the Great Exception Handling Rewrite.

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* Add a "landing pad" attribute to the BasicBlock.
* Modify the bitcode reader and writer to handle said attribute.

Later: The verifier will ensure that the landing pad attribute is used in the
appropriate manner. I.e., not applied to the entry block, and applied only to
basic blocks that are branched to via a `dispatch' instruction.

(This is a work-in-progress.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129235 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling
2011-04-10 00:04:27 +00:00
parent b1145c8cee
commit d7bb295d22
10 changed files with 87 additions and 16 deletions
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5
include/llvm/Bitcode/LLVMBitCodes.h
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@ -106,8 +106,9 @@ namespace bitc {
// The value symbol table only has one code (VST_ENTRY_CODE).
enum ValueSymtabCodes {
VST_CODE_ENTRY = 1, // VST_ENTRY: [valid, namechar x N]
VST_CODE_BBENTRY = 2 // VST_BBENTRY: [bbid, namechar x N]
VST_CODE_ENTRY = 1, // VST_ENTRY: [valid, namechar x N]
VST_CODE_BBENTRY = 2, // VST_BBENTRY: [bbid, namechar x N]
VST_CODE_LPADENTRY = 3 // VST_LPADENTRY: [lpadid, namechar x N]
};
enum MetadataCodes {