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* [PM] Remove the old 'PassManager.h' header file at the top level ofChandler Carruth2015-02-131-1/+1
| | | | | | | | | | | | | | | | | | | | LLVM's include tree and the use of using declarations to hide the 'legacy' namespace for the old pass manager. This undoes the primary modules-hostile change I made to keep out-of-tree targets building. I sent an email inquiring about whether this would be reasonable to do at this phase and people seemed fine with it, so making it a reality. This should allow us to start bootstrapping with modules to a certain extent along with making it easier to mix and match headers in general. The updates to any code for users of LLVM are very mechanical. Switch from including "llvm/PassManager.h" to "llvm/IR/LegacyPassManager.h". Qualify the types which now produce compile errors with "legacy::". The most common ones are "PassManager", "PassManagerBase", and "FunctionPassManager". llvm-svn: 229094
* Only access TLOF via the TargetMachine, not TargetLowering.Eric Christopher2015-02-031-1/+1
| | | | llvm-svn: 227949
* [multiversion] Switch the TTI queries from TargetMachine to SubtargetChandler Carruth2015-02-011-2/+3
| | | | | | | | | | | | | | | | | | | now that we have a correct and cached subtarget specific to the function. Also, finish providing a cached per-function subtarget in the core LLVMTargetMachine -- that layer hadn't switched over yet. The only use of the TargetMachine was to re-lookup a subtarget for a particular function to work around the fact that TTI was immutable. Now that it is per-function and we haved a cached subtarget, use it. This still leaves a few interfaces with real warts on them where we were passing Function objects through the TTI interface. I'll remove these and clean their usage up in subsequent commits now that this isn't necessary. llvm-svn: 227738
* [multiversion] Switch all of the targets over to use theChandler Carruth2015-02-011-2/+3
| | | | | | | | | | | | | | | | TargetIRAnalysis access path directly rather than implementing getTTI. This even removes getTTI from the interface. It's more efficient for each target to just register a precise callback that creates their specific TTI. As part of this, all of the targets which are building their subtargets individually per-function now build their TTI instance with the function and thus look up the correct subtarget and cache it. NVPTX, R600, and XCore currently don't leverage this functionality, but its trivial for them to add it now. llvm-svn: 227735
* [multiversion] Implement the old pass manager's TTI wrapper pass inChandler Carruth2015-02-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | terms of the new pass manager's TargetIRAnalysis. Yep, this is one of the nicer bits of the new pass manager's design. Passes can in many cases operate in a vacuum and so we can just nest things when convenient. This is particularly convenient here as I can now consolidate all of the TargetMachine logic on this analysis. The most important change here is that this pushes the function we need TTI for all the way into the TargetMachine, and re-creates the TTI object for each function rather than re-using it for each function. We're now prepared to teach the targets to produce function-specific TTI objects with specific subtargets cached, etc. One piece of feedback I'd love here is whether its worth renaming any of this stuff. None of the names really seem that awesome to me at this point, but TargetTransformInfoWrapperPass is particularly ... odd. TargetIRAnalysisWrapper might make more sense. I would want to do that rename separately anyways, but let me know what you think. llvm-svn: 227731
* [PM] Switch the TargetMachine interface from accepting a pass managerChandler Carruth2015-01-311-3/+4
| | | | | | | | | | | | | | | | | | | | | | | base which it adds a single analysis pass to, to instead return the type erased TargetTransformInfo object constructed for that TargetMachine. This removes all of the pass variants for TTI. There is now a single TTI *pass* in the Analysis layer. All of the Analysis <-> Target communication is through the TTI's type erased interface itself. While the diff is large here, it is nothing more that code motion to make types available in a header file for use in a different source file within each target. I've tried to keep all the doxygen comments and file boilerplate in line with this move, but let me know if I missed anything. With this in place, the next step to making TTI work with the new pass manager is to introduce a really simple new-style analysis that produces a TTI object via a callback into this routine on the target machine. Once we have that, we'll have the building blocks necessary to accept a function argument as well. llvm-svn: 227685
* std::unique_ptrify the MCStreamer argument to createAsmPrinterDavid Blaikie2015-01-181-13/+7
| | | | llvm-svn: 226414
* [cleanup] Re-sort all the #include lines in LLVM usingChandler Carruth2015-01-141-1/+0
| | | | | | | | | | | utils/sort_includes.py. I clearly haven't done this in a while, so more changed than usual. This even uncovered a missing include from the InstrProf library that I've added. No functionality changed here, just mechanical cleanup of the include order. llvm-svn: 225974
* Add Forward Control-Flow Integrity.Tom Roeder2014-11-111-1/+8
| | | | | | | | | | | | | | | | | | | | This commit adds a new pass that can inject checks before indirect calls to make sure that these calls target known locations. It supports three types of checks and, at compile time, it can take the name of a custom function to call when an indirect call check fails. The default failure function ignores the error and continues. This pass incidentally moves the function JumpInstrTables::transformType from private to public and makes it static (with a new argument that specifies the table type to use); this is so that the CFI code can transform function types at call sites to determine which jump-instruction table to use for the check at that site. Also, this removes support for jumptables in ARM, pending further performance analysis and discussion. Review: http://reviews.llvm.org/D4167 llvm-svn: 221708
* Simplify handling of --noexecstack by using getNonexecutableStackSection.Rafael Espindola2014-10-151-6/+8
| | | | llvm-svn: 219799
* Reinstate "Nuke the old JIT."Eric Christopher2014-09-021-20/+0
| | | | | | | | Approved by Jim Grosbach, Lang Hames, Rafael Espindola. This reinstates commits r215111, 215115, 215116, 215117, 215136. llvm-svn: 216982
* Temporarily Revert "Nuke the old JIT." as it's not quite ready toEric Christopher2014-08-071-0/+20
| | | | | | | | | | | be deleted. This will be reapplied as soon as possible and before the 3.6 branch date at any rate. Approved by Jim Grosbach, Lang Hames, Rafael Espindola. This reverts commits r215111, 215115, 215116, 215117, 215136. llvm-svn: 215154
* Nuke the old JIT.Rafael Espindola2014-08-071-20/+0
| | | | | | | | | I am sure we will be finding bits and pieces of dead code for years to come, but this is a good start. Thanks to Lang Hames for making MCJIT a good replacement! llvm-svn: 215111
* Remove the TargetMachine forwards for TargetSubtargetInfo basedEric Christopher2014-08-041-11/+11
| | | | | | information and update all callers. No functional change. llvm-svn: 214781
* Allow a target to create a null streamer.Rafael Espindola2014-06-201-1/+1
| | | | | | | | | Targets can assume that a target streamer is present, so they have to be able to construct a null streamer in order to set the target streamer in it to. Fixes a crash when using the null streamer with arm. llvm-svn: 211358
* Add a new attribute called 'jumptable' that creates jump-instruction tables ↵Tom Roeder2014-06-051-0/+10
| | | | | | | | | | | | for functions marked with this attribute. It includes a pass that rewrites all indirect calls to jumptable functions to pass through these tables. This also adds backend support for generating the jump-instruction tables on ARM and X86. Note that since the jumptable attribute creates a second function pointer for a function, any function marked with jumptable must also be marked with unnamed_addr. llvm-svn: 210280
* Move the verbose asm option to be part of the options struct andEric Christopher2014-05-201-15/+3
| | | | | | set appropriately. llvm-svn: 209258
* Fix typos.Eric Christopher2014-05-191-1/+2
| | | | llvm-svn: 209164
* Remove the Options query functions and just access our Options directly.Eric Christopher2014-05-161-8/+8
| | | | llvm-svn: 208937
* Move more MC options into the MCTargetOptions structure.Eric Christopher2014-05-151-12/+4
| | | | | | No functional change. llvm-svn: 208932
* Remove the UseCFI option from createAsmStreamer.Rafael Espindola2014-05-071-1/+0
| | | | | | We were already always passing true, this just removes the option. llvm-svn: 208205
* [C++11] More 'nullptr' conversion. In some cases just using a boolean check ↵Craig Topper2014-04-141-8/+9
| | | | | | instead of comparing to nullptr. llvm-svn: 206142
* DebugInfo: TargetOptions/MCAsmInfo support for compressed debug info sectionsDavid Blaikie2014-03-271-0/+3
| | | | llvm-svn: 204957
* Replace OwningPtr<T> with std::unique_ptr<T>.Ahmed Charles2014-03-061-3/+2
| | | | | | | | | | This compiles with no changes to clang/lld/lldb with MSVC and includes overloads to various functions which are used by those projects and llvm which have OwningPtr's as parameters. This should allow out of tree projects some time to move. There are also no changes to libs/Target, which should help out of tree targets have time to move, if necessary. llvm-svn: 203083
* [C++11] Replace OwningPtr::take() with OwningPtr::release().Ahmed Charles2014-03-051-2/+2
| | | | llvm-svn: 202957
* Make DisableIntegratedAS a TargetOption.Rafael Espindola2014-02-211-5/+1
| | | | | | | This replaces the old NoIntegratedAssembler with at TargetOption. This is more flexible and will be used to forward clang's -no-integrated-as option. llvm-svn: 201836
* Re-commit: Demote EmitRawText call in AsmPrinter::EmitInlineAsm() and remove ↵Daniel Sanders2014-02-131-2/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | hasRawTextSupport() call Summary: AsmPrinter::EmitInlineAsm() will no longer use the EmitRawText() call for targets with mature MC support. Such targets will always parse the inline assembly (even when emitting assembly). Targets without mature MC support continue to use EmitRawText() for assembly output. The hasRawTextSupport() check in AsmPrinter::EmitInlineAsm() has been replaced with MCAsmInfo::UseIntegratedAs which when true, causes the integrated assembler to parse inline assembly (even when emitting assembly output). UseIntegratedAs is set to true for targets that consider any failure to parse valid assembly to be a bug. Target specific subclasses generally enable the integrated assembler in their constructor. The default value can be overridden with -no-integrated-as. All tests that rely on inline assembly supporting invalid assembly (for example, those that use mnemonics such as 'foo' or 'hello world') have been updated to disable the integrated assembler. Changes since review (and last commit attempt): - Fixed test failures that were missed due to configuration of local build. (fixes crash.ll and a couple others). - Fixed tests that happened to pass because the local build was on X86 (should fix 2007-12-17-InvokeAsm.ll) - mature-mc-support.ll's should no longer require all targets to be compiled. (should fix ARM and PPC buildbots) - Object output (-filetype=obj and similar) now forces the integrated assembler to be enabled regardless of default setting or -no-integrated-as. (should fix SystemZ buildbots) Reviewers: rafael Reviewed By: rafael CC: llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D2686 llvm-svn: 201333
* Revert r201237+r201238: Demote EmitRawText call in ↵Daniel Sanders2014-02-121-12/+2
| | | | | | | | AsmPrinter::EmitInlineAsm() and remove hasRawTextSupport() call It introduced multiple test failures in the buildbots. llvm-svn: 201241
* Demote EmitRawText call in AsmPrinter::EmitInlineAsm() and remove ↵Daniel Sanders2014-02-121-2/+12
| | | | | | | | | | | | | | | | | | | | | hasRawTextSupport() call Summary: AsmPrinter::EmitInlineAsm() will no longer use the EmitRawText() call for targets with mature MC support. Such targets will always parse the inline assembly (even when emitting assembly). Targets without mature MC support continue to use EmitRawText() for assembly output. The hasRawTextSupport() check in AsmPrinter::EmitInlineAsm() has been replaced with MCAsmInfo::UseIntegratedAs which when true, causes the integrated assembler to parse inline assembly (even when emitting assembly output). UseIntegratedAs is set to true for targets that consider any failure to parse valid assembly to be a bug. Target specific subclasses generally enable the integrated assembler in their constructor. The default value can be overridden with -no-integrated-as. All tests that rely on inline assembly supporting invalid assembly (for example, those that use mnemonics such as 'foo' or 'hello world') have been updated to disable the integrated assembler. Reviewers: rafael Reviewed By: rafael CC: llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D2686 llvm-svn: 201237
* Remove support for not using .loc directives.Rafael Espindola2014-02-051-1/+0
| | | | | | Clang itself was not using this. The only way to access it was via llc. llvm-svn: 200862
* Pass a MCSubtargetInfo down to the TargetStreamer creation.Rafael Espindola2014-01-261-8/+6
| | | | | | | With this the target streamers will be able to know the target features that are in use. llvm-svn: 200135
* Simplify the logic for deciding when to initialize the sections.Rafael Espindola2014-01-241-1/+0
| | | | llvm-svn: 199971
* Remove duplicated info on what .text, .data and .bss look like.Rafael Espindola2014-01-231-1/+0
| | | | llvm-svn: 199951
* Add target analysis passes to the codegen pipeline for MCJIT.Juergen Ributzka2014-01-231-0/+3
| | | | | | | | | | | This patch adds the target analysis passes (usually TargetTransformInfo) to the codgen pipeline. We also expose now the AddAnalysisPasses method through the C API, because the optimizer passes would also benefit from better target-specific cost models. Reviewed by Andrew Kaylor llvm-svn: 199926
* [PM] Simplify the interface exposed for IR printing passes.Chandler Carruth2014-01-121-1/+1
| | | | | | | | | | | | Nothing was using the ability of the pass to delete the raw_ostream it printed to, and nothing was trying to pass it a pointer to the raw_ostream. Also, the function variant had a different order of arguments from all of the others which was just really confusing. Now the interface accepts a reference, doesn't offer to delete it, and uses a consistent order. The implementation of the printing passes haven't been updated with this simplification, this is just the API switch. llvm-svn: 199044
* [PM] Rename the IR printing pass header to a more generic and correctChandler Carruth2014-01-121-1/+1
| | | | | | | | name to match the source file which I got earlier. Update the include sites. Also modernize the comments in the header to use the more recommended doxygen style. llvm-svn: 199041
* Move the LLVM IR asm writer header files into the IR directory, as theyChandler Carruth2014-01-071-1/+1
| | | | | | | | | | | | | | | | | are part of the core IR library in order to support dumping and other basic functionality. Rename the 'Assembly' include directory to 'AsmParser' to match the library name and the only functionality left their -- printing has been in the core IR library for quite some time. Update all of the #includes to match. All of this started because I wanted to have the layering in good shape before I started adding support for printing LLVM IR using the new pass infrastructure, and commandline support for the new pass infrastructure. llvm-svn: 198688
* Grammar.Eric Christopher2013-10-081-1/+1
| | | | llvm-svn: 192199
* Call generateCompactUnwindEncodings() right before we need to output the ↵Bill Wendling2013-09-091-4/+3
| | | | | | | | | | | | | frame information. There are more than one paths to where the frame information is emitted. Place the call to generateCompactUnwindEncodings() into the method which outputs the frame information, thus ensuring that the encoding is there for every path. This involved threading the MCAsmBackend object through to this method. <rdar://problem/13623355> llvm-svn: 190335
* Generate compact unwind encoding from CFI directives.Bill Wendling2013-09-091-3/+4
| | | | | | | | | | | | | | | We used to generate the compact unwind encoding from the machine instructions. However, this had the problem that if the user used `-save-temps' or compiled their hand-written `.s' file (with CFI directives), we wouldn't generate the compact unwind encoding. Move the algorithm that generates the compact unwind encoding into the MCAsmBackend. This way we can generate the encoding whether the code is from a `.ll' or `.s' file. <rdar://problem/13623355> llvm-svn: 190290
* Access the TargetLoweringInfo from the TargetMachine object instead of ↵Bill Wendling2013-06-191-3/+2
| | | | | | caching it. The TLI may change between functions. No functionality change. llvm-svn: 184349
* Simplify some of the code. No functionality change.Bill Wendling2013-06-181-7/+5
| | | | llvm-svn: 184172
* Add space to assert message.Bill Wendling2013-06-051-1/+1
| | | | llvm-svn: 183346
* Remove the MachineMove class.Rafael Espindola2013-05-131-8/+11
| | | | | | | | | | | | 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
* Fix GCMetadaPrinter::finishAssembly not executed, patch by Yiannis Tsiouris.Benjamin Kramer2013-02-191-2/+0
| | | | | | | | | | | Due to the execution order of doFinalization functions, the GC information were deleted before AsmPrinter::doFinalization was executed. Thus, the GCMetadataPrinter::finishAssembly was never called. The patch fixes that by moving the code of the GCInfoDeleter::doFinalization to Printer::doFinalization. llvm-svn: 175528
* Switch TargetTransformInfo from an immutable analysis pass that requiresChandler Carruth2013-01-071-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | a TargetMachine to construct (and thus isn't always available), to an analysis group that supports layered implementations much like AliasAnalysis does. This is a pretty massive change, with a few parts that I was unable to easily separate (sorry), so I'll walk through it. The first step of this conversion was to make TargetTransformInfo an analysis group, and to sink the nonce implementations in ScalarTargetTransformInfo and VectorTargetTranformInfo into a NoTargetTransformInfo pass. This allows other passes to add a hard requirement on TTI, and assume they will always get at least on implementation. The TargetTransformInfo analysis group leverages the delegation chaining trick that AliasAnalysis uses, where the base class for the analysis group delegates to the previous analysis *pass*, allowing all but tho NoFoo analysis passes to only implement the parts of the interfaces they support. It also introduces a new trick where each pass in the group retains a pointer to the top-most pass that has been initialized. This allows passes to implement one API in terms of another API and benefit when some other pass above them in the stack has more precise results for the second API. The second step of this conversion is to create a pass that implements the TargetTransformInfo analysis using the target-independent abstractions in the code generator. This replaces the ScalarTargetTransformImpl and VectorTargetTransformImpl classes in lib/Target with a single pass in lib/CodeGen called BasicTargetTransformInfo. This class actually provides most of the TTI functionality, basing it upon the TargetLowering abstraction and other information in the target independent code generator. The third step of the conversion adds support to all TargetMachines to register custom analysis passes. This allows building those passes with access to TargetLowering or other target-specific classes, and it also allows each target to customize the set of analysis passes desired in the pass manager. The baseline LLVMTargetMachine implements this interface to add the BasicTTI pass to the pass manager, and all of the tools that want to support target-aware TTI passes call this routine on whatever target machine they end up with to add the appropriate passes. The fourth step of the conversion created target-specific TTI analysis passes for the X86 and ARM backends. These passes contain the custom logic that was previously in their extensions of the ScalarTargetTransformInfo and VectorTargetTransformInfo interfaces. I separated them into their own file, as now all of the interface bits are private and they just expose a function to create the pass itself. Then I extended these target machines to set up a custom set of analysis passes, first adding BasicTTI as a fallback, and then adding their customized TTI implementations. The fourth step required logic that was shared between the target independent layer and the specific targets to move to a different interface, as they no longer derive from each other. As a consequence, a helper functions were added to TargetLowering representing the common logic needed both in the target implementation and the codegen implementation of the TTI pass. While technically this is the only change that could have been committed separately, it would have been a nightmare to extract. The final step of the conversion was just to delete all the old boilerplate. This got rid of the ScalarTargetTransformInfo and VectorTargetTransformInfo classes, all of the support in all of the targets for producing instances of them, and all of the support in the tools for manually constructing a pass based around them. Now that TTI is a relatively normal analysis group, two things become straightforward. First, we can sink it into lib/Analysis which is a more natural layer for it to live. Second, clients of this interface can depend on it *always* being available which will simplify their code and behavior. These (and other) simplifications will follow in subsequent commits, this one is clearly big enough. Finally, I'm very aware that much of the comments and documentation needs to be updated. As soon as I had this working, and plausibly well commented, I wanted to get it committed and in front of the build bots. I'll be doing a few passes over documentation later if it sticks. Commits to update DragonEgg and Clang will be made presently. llvm-svn: 171681
* Defer call to InitSections until after MCContext has been initialized. IfLang Hames2012-12-101-1/+1
| | | | | | | | InitSections is called before the MCContext is initialized it could cause duplicate temporary symbols to be emitted later (after context initialization resets the temporary label counter). llvm-svn: 169785
* Use the new script to sort the includes of every file under lib.Chandler Carruth2012-12-031-12/+12
| | | | | | | | | | | | | | | | | 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
* Replace r168930 with a more reasonable patch.Bill Wendling2012-11-301-0/+2
| | | | | | | | | | | The original patch removed a bunch of code that the SjLjEHPrepare pass placed into the entry block if all of the landing pads were removed during the CodeGenPrepare class. The more natural way of doing things is to run the CGP *before* we run the SjLjEHPrepare pass. Make it so! llvm-svn: 169044
* Fix 80-col violationEli Bendersky2012-11-221-1/+2
| | | | llvm-svn: 168498
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