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* [WinEH] Emit .safeseh directives for all 32-bit exception handlersReid Kleckner2015-06-101-0/+8
| | | | | | | | | | Use a "safeseh" string attribute to do this. You would think we chould just accumulate the set of personalities like we do on dwarf, but this fails to account for the LSDA-loading thunks we use for __CxxFrameHandler3. Each of those needs to make it into .sxdata as well. The string attribute seemed like the most straightforward approach. llvm-svn: 239448
* Fix -Wsign-compare warning in WinException.cppReid Kleckner2015-06-101-1/+2
| | | | llvm-svn: 239445
* [WinEH] Add 32-bit SEH state table emission prototypeReid Kleckner2015-06-091-1/+88
| | | | | | | | | | | | This gets all the handler info through to the asm printer and we can look at the .xdata tables now. I've convinced one small catch-all test case to work, but other than that, it would be a stretch to say this is functional. The state numbering algorithm avoids doing any scope reconstruction as we do for C++ to simplify the implementation. llvm-svn: 239433
* MC: Clean up MCExpr naming. NFC.Jim Grosbach2015-05-301-9/+9
| | | | llvm-svn: 238634
* [WinEH] Emit EH tables for __CxxFrameHandler3 on 32-bit x86Reid Kleckner2015-05-291-132/+171
| | | | | | | | | | | | | Small (really small!) C++ exception handling examples work on 32-bit x86 now. This change disables the use of .seh_* directives in WinException when CFI is not in use. It also uses absolute symbol references in the tables instead of imagerel32 relocations. Also fixes a cache invalidation bug in MMI personality classification. llvm-svn: 238575
* Rename Win64Exception.(cpp|h) to WinException.(cpp|h)Reid Kleckner2015-05-281-0/+504
This is in preparation for reusing this for 32-bit x86 EH table emission. Also updates the type name for consistency. NFC llvm-svn: 238521
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