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path: root/llvm/lib/CodeGen/AsmPrinter/WinException.cpp
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* [WinEH] Put finally pointers in the handler scope table fieldReid Kleckner2015-06-111-14/+13
| | | | | | | | | | We were putting them in the filter field, which is correct for 64-bit but wrong for 32-bit. Also switch the order of scope table entry emission so outermost entries are emitted first, and fix an obvious state assignment bug. llvm-svn: 239574
* [WinEH] Create an llvm.x86.seh.exceptioninfo intrinsicReid Kleckner2015-06-111-3/+18
| | | | | | | | | | | | | | This intrinsic is like framerecover plus a load. It recovers the EH registration stack allocation from the parent frame and loads the exception information field out of it, giving back a pointer to an EXCEPTION_POINTERS struct. It's designed for clang to use in SEH filter expressions instead of accessing the EXCEPTION_POINTERS parameter that is available on x64. This required a minor change to MC to allow defining a label variable to another absolute framerecover label variable. llvm-svn: 239567
* [WinEH] _except_handlerN uses 0 instead of 1 to indicate catch-allReid Kleckner2015-06-101-6/+4
| | | | | | Our usage of 1 was a holdover from __C_specific_handler. llvm-svn: 239482
* Remove safeseh debug print and remove extra bracesReid Kleckner2015-06-101-5/+2
| | | | llvm-svn: 239449
* [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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