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path: root/llvm/lib/CodeGen/MachineModuleInfo.cpp
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2015-07-14[CodeGen] Force emission of personality directive if explicitly specifiedKeno Fischer1-0/+3
Summary: Before this change, personality directives were not emitted if there was no invoke left in the function (of course until recently this also meant that we couldn't know what the personality actually was). This patch forces personality directives to still be emitted, unless it is known to be a noop in the absence of invokes, or the user explicitly specified `nounwind` (and not `uwtable`) on the function. Reviewers: majnemer, rnk Subscribers: rnk, llvm-commits Differential Revision: http://reviews.llvm.org/D10884 llvm-svn: 242185
2015-07-03Initialize booleans CallsUnwindInit and CallsEHReturn with false instead of 0.Yaron Keren1-4/+4
llvm-svn: 241324
2015-06-29[MMI] Use TinyPtrVector instead of PointerUnion with vector.Benjamin Kramer1-98/+21
Also simplify duplicated code a bit. No functionality change intended. llvm-svn: 240990
2015-06-23Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)Alexander Kornienko1-1/+1
Apparently, the style needs to be agreed upon first. llvm-svn: 240390
2015-06-19Fixed/added namespace ending comments using clang-tidy. NFCAlexander Kornienko1-1/+1
The patch is generated using this command: tools/clang/tools/extra/clang-tidy/tool/run-clang-tidy.py -fix \ -checks=-*,llvm-namespace-comment -header-filter='llvm/.*|clang/.*' \ llvm/lib/ Thanks to Eugene Kosov for the original patch! llvm-svn: 240137
2015-06-11Remove MachineModuleInfo::UsedFunctions as it has no users.Pete Cooper1-17/+0
It hasn't been used since r130964. This also removes MachineModuleInfo::isUsedFunction and MachineModuleInfo::AnalyzeModule, both of which were only there to support UsedFunctions. llvm-svn: 239501
2015-05-29Replace push_back(Constructor(foo)) with emplace_back(foo) for non-trivial typesBenjamin Kramer1-1/+1
If the type isn't trivially moveable emplace can skip a potentially expensive move. It also saves a couple of characters. Call sites were found with the ASTMatcher + some semi-automated cleanup. memberCallExpr( argumentCountIs(1), callee(methodDecl(hasName("push_back"))), on(hasType(recordDecl(has(namedDecl(hasName("emplace_back")))))), hasArgument(0, bindTemporaryExpr( hasType(recordDecl(hasNonTrivialDestructor())), has(constructExpr()))), unless(isInTemplateInstantiation())) No functional change intended. llvm-svn: 238602
2015-05-29[WinEH] Emit EH tables for __CxxFrameHandler3 on 32-bit x86Reid Kleckner1-0/+1
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
2015-05-18MC: Clean up method names in MCContext.Jim Grosbach1-2/+2
The naming was a mish-mash of old and new style. Update to be consistent with the new. NFC. llvm-svn: 237594
2015-04-23Re-commit "[SEH] Remove the old __C_specific_handler code now that ↵Reid Kleckner1-8/+0
WinEHPrepare works" This reverts commit r235617. r235649 should have addressed the problems. llvm-svn: 235667
2015-04-23Revert "[SEH] Remove the old __C_specific_handler code now that WinEHPrepare ↵Reid Kleckner1-0/+8
works" We still have some "uses remain after removal" issues in -O0 builds. This reverts commit r235557. llvm-svn: 235617
2015-04-22[SEH] Remove the old __C_specific_handler code now that WinEHPrepare worksReid Kleckner1-8/+0
This removes the -sehprepare flag and makes __C_specific_handler functions always to use WinEHPrepare. This was tested by building all of chromium_builder_tests and running a few tests that use SEH, but if something breaks, we can revert this. llvm-svn: 235557
2015-04-21Re-land r235154-r235156 under the existing -sehprepare flagReid Kleckner1-0/+19
Keep the old SEH fan-in lowering on by default for now, since projects rely on it. This will make it easy to test this change with a simple flag flip. llvm-svn: 235399
2015-04-17Revert r235154-r235156, they cause asserts when building win64 code ↵Nico Weber1-16/+5
(http://crbug.com/477988) llvm-svn: 235170
2015-04-17[SEH] Reimplement x64 SEH using WinEHPrepareReid Kleckner1-5/+16
This now emits simple, unoptimized xdata tables for __C_specific_handler based on the handlers listed in @llvm.eh.actions calls produced by WinEHPrepare. This adds support for running __finally blocks when exceptions are thrown, and removes the old landingpad fan-in codepath. I ran some manual execution tests on small basic test cases with and without optimization, as well as on Chrome base_unittests, which uses a small amount of SEH. I'm sure there are bugs, and we may need to revert. llvm-svn: 235154
2015-04-15[WinEH] Try to make the MachineFunction CFG more accurateReid Kleckner1-2/+5
This avoids emitting code for unreachable landingpad blocks that contain calls to llvm.eh.actions and indirectbr. It's also a first step towards unifying the SEH and WinEH lowering codepaths. I'm keeping the old fan-in lowering of SEH around until the preparation version works well enough that we can switch over without breaking existing users. llvm-svn: 235037
2015-03-30[WinEH] Run cleanup handlers when an exception is thrownDavid Majnemer1-0/+22
Generate tables in the .xdata section representing what actions to take when an exception is thrown. This currently fills in state for cleanups, catch handlers are still unfinished. llvm-svn: 233636
2015-02-14Unify the two EH personality classification routines I wroteReid Kleckner1-10/+5
We only need one. llvm-svn: 229193
2015-01-23Classify functions by EH personality type rather than using the tripleReid Kleckner1-1/+16
This mostly reverts commit r222062 and replaces it with a new enum. At some point this enum will grow at least for other MSVC EH personalities. Also beefs up the way we were sniffing the personality function. Previously we would emit the Itanium LSDA despite using __C_specific_handler. Reviewers: majnemer Differential Revision: http://reviews.llvm.org/D6987 llvm-svn: 226920
2015-01-14Use MMI->getPersonality() instead of ↵Reid Kleckner1-2/+0
MMI->getPersonalities()[MMI->getPersonalityIndex()] Also nuke the comment about supporting multiple personalities in a single function, aka PR1414. That's just crazy. llvm-svn: 226052
2015-01-14CodeGen support for x86_64 SEH catch handlers in LLVMReid Kleckner1-0/+8
This adds handling for ExceptionHandling::MSVC, used by the x86_64-pc-windows-msvc triple. It assumes that filter functions have already been outlined in either the frontend or the backend. Filter functions are used in place of the landingpad catch clause type info operands. In catch clause order, the first filter to return true will catch the exception. The C specific handler table expects the landing pad to be split into one block per handler, but LLVM IR uses a single landing pad for all possible unwind actions. This patch papers over the mismatch by synthesizing single instruction BBs for every catch clause to fill in the EH selector that the landing pad block expects. Missing functionality: - Accessing data in the parent frame from outlined filters - Cleanups (from __finally) are unsupported, as they will require outlining and parent frame access - Filter clauses are unsupported, as there's no clear analogue in SEH In other words, this is the minimal set of changes needed to write IR to catch arbitrary exceptions and resume normal execution. Reviewers: majnemer Differential Revision: http://reviews.llvm.org/D6300 llvm-svn: 225904
2014-12-30x86_64: Fix calls to __morestack under the large code model.Peter Collingbourne1-1/+1
Under the large code model, we cannot assume that __morestack lives within 2^31 bytes of the call site, so we cannot use pc-relative addressing. We cannot perform the call via a temporary register, as the rax register may be used to store the static chain, and all other suitable registers may be either callee-save or used for parameter passing. We cannot use the stack at this point either because __morestack manipulates the stack directly. To avoid these issues, perform an indirect call via a read-only memory location containing the address. This solution is not perfect, as it assumes that the .rodata section is laid out within 2^31 bytes of each function body, but this seems to be sufficient for JIT. Differential Revision: http://reviews.llvm.org/D6787 llvm-svn: 225003
2014-11-14Allow the use of functions as typeinfo in landingpad clausesReid Kleckner1-3/+3
This is one step towards supporting SEH filter functions in LLVM. llvm-svn: 221954
2014-08-15Delete dead code. NFC.Rafael Espindola1-2/+0
llvm-svn: 215720
2014-04-14[C++11] More 'nullptr' conversion. In some cases just using a boolean check ↵Craig Topper1-20/+20
instead of comparing to nullptr. llvm-svn: 206142
2014-03-09MachineModuleInfo: Turn nested std::pairs into a proper struct.Benjamin Kramer1-1/+1
llvm-svn: 203414
2014-03-07[C++11] Add 'override' keyword to virtual methods that override their base ↵Craig Topper1-2/+2
class. llvm-svn: 203220
2013-06-18Use pointers to the MCAsmInfo and MCRegInfo.Bill Wendling1-3/+2
Someone may want to do something crazy, like replace these objects if they change or something. No functionality change intended. llvm-svn: 184175
2013-05-16Remove addFrameMove.Rafael Espindola1-33/+0
Now that we have good testing, remove addFrameMove and create cfi instructions directly. llvm-svn: 182052
2013-05-13Remove the MachineMove class.Rafael Espindola1-1/+34
It was just a less powerful and more confusing version of MCCFIInstruction. A side effect is that, since MCCFIInstruction uses dwarf register numbers, calls to getDwarfRegNum are pushed out, which should allow further simplifications. I left the MachineModuleInfo::addFrameMove interface unchanged since this patch was already fairly big. llvm-svn: 181680
2013-04-22Clarify that llvm.used can contain aliases.Rafael Espindola1-2/+1
Also add a check for llvm.used in the verifier and simplify clients now that they can assume they have a ConstantArray. llvm-svn: 180019
2013-01-04small fixes to enable the reuse of the pass manager across multiple modulesPedro Artigas1-1/+3
llvm-svn: 171475
2013-01-02Move all of the header files which are involved in modelling the LLVM IRChandler Carruth1-4/+4
into their new header subdirectory: include/llvm/IR. This matches the directory structure of lib, and begins to correct a long standing point of file layout clutter in LLVM. There are still more header files to move here, but I wanted to handle them in separate commits to make tracking what files make sense at each layer easier. The only really questionable files here are the target intrinsic tablegen files. But that's a battle I'd rather not fight today. I've updated both CMake and Makefile build systems (I think, and my tests think, but I may have missed something). I've also re-sorted the includes throughout the project. I'll be committing updates to Clang, DragonEgg, and Polly momentarily. llvm-svn: 171366
2012-12-12Make the MCStreamer have a reset method and call that after finalization of ↵Pedro Artigas1-3/+1
the asm printer, also changed MCContext to a single reset only method for simplicity as requested on the list llvm-svn: 170041
2012-12-06fixed valgrind issues of prior commit, this change applies r169456 changes ↵Pedro Artigas1-1/+6
back to the tree with fixes. on darwin no valgrind issues exist in the tests that used to fail. original change description: change MCContext to work on the doInitialization/doFinalization model reviewed by Evan Cheng <evan.cheng@apple.com> llvm-svn: 169553
2012-12-06Revert r169456, "change MCContext to work on the ↵NAKAMURA Takumi1-5/+0
doInitialization/doFinalization model" It broke many builders. llvm-svn: 169462
2012-12-06change MCContext to work on the doInitialization/doFinalization modelPedro Artigas1-0/+5
reviewed by Evan Cheng <evan.cheng@apple.com> llvm-svn: 169456
2012-12-05- Added calls to doInitialization/doFinalization to immutable passesPedro Artigas1-10/+23
- fixed ordering of calls to doFinalization to be the reverse of the pass run order due to potential dependencies - fixed machine module info to operate in the doInitialization/doFinalization model, also fixes some FIXMEs reviewed by Evan Cheng <evan.cheng@apple.com> llvm-svn: 169391
2012-12-03moves doInitialization and doFinalization to the Pass class and removes some ↵Pedro Artigas1-15/+0
unreachable code in MachineModuleInfo reviewed by Evan Cheng <evan.cheng@apple.com> llvm-svn: 169164
2012-12-03Use the new script to sort the includes of every file under lib.Chandler Carruth1-7/+6
Sooooo many of these had incorrect or strange main module includes. I have manually inspected all of these, and fixed the main module include to be the nearest plausible thing I could find. If you own or care about any of these source files, I encourage you to take some time and check that these edits were sensible. I can't have broken anything (I strictly added headers, and reordered them, never removed), but they may not be the headers you'd really like to identify as containing the API being implemented. Many forward declarations and missing includes were added to a header files to allow them to parse cleanly when included first. The main module rule does in fact have its merits. =] llvm-svn: 169131
2012-10-08Move TargetData to DataLayout.Micah Villmow1-1/+1
llvm-svn: 165402
2012-02-22Properly emit _fltused with FastISel. Refactor to share code with SDAG.Michael J. Spencer1-1/+1
Patch by Joe Groff! llvm-svn: 151183
2012-02-14Turn push_back loops into append/insert.Benjamin Kramer1-4/+2
llvm-svn: 150471
2012-02-13Don't recalculate the size of the vector each time through the loop.Bill Wendling1-2/+2
llvm-svn: 150436
2012-02-05Convert assert(0) to llvm_unreachableCraig Topper1-3/+3
llvm-svn: 149816
2011-10-05Add an ivar that maps a landing pad's EH symbol to the call sites that may jumpBill Wendling1-0/+8
to the landing pad. This will be used by the back-end to generate the jump tables for dispatching the arriving longjmp in sjlj eh. llvm-svn: 141224
2011-07-28Use ArrayRef instead of requiring an std::vector.Bill Wendling1-4/+6
llvm-svn: 136396
2011-07-20Goodbye TargetAsmInfo. This eliminate last bit of CodeGen and Target in llvm-mc.Evan Cheng1-5/+3
There is still a bit more refactoring left to do in Targets. But we are now very close to fixing all the layering issues in MC. llvm-svn: 135611
2011-07-20Add MCObjectFileInfo and sink the MCSections initialization code fromEvan Cheng1-5/+6
TargetLoweringObjectFileImpl down to MCObjectFileInfo. TargetAsmInfo is done to one last method. It's *almost* gone! llvm-svn: 135569
2011-07-19Rename CompactEncoding to CompactUnwindEncoding.Bill Wendling1-2/+2
llvm-svn: 135448
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