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2017-11-27Rename CommandFlags.h -> CommandFlags.defDavid Blaikie
Since this isn't a real header - it includes static functions and had external linkage variables (though this change makes them static, since that's what they should be) so can't be included more than once in a program. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319082 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-17Fix a bunch more layering of CodeGen headers that are in TargetDavid Blaikie
All these headers already depend on CodeGen headers so moving them into CodeGen fixes the layering (since CodeGen depends on Target, not the other way around). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@318490 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-14Rename CountingFunctionInserter and use for both mcount and cygprofile ↵Hans Wennborg
calls, before and after inlining Clang implements the -finstrument-functions flag inherited from GCC, which inserts calls to __cyg_profile_func_{enter,exit} on function entry and exit. This is useful for getting a trace of how the functions in a program are executed. Normally, the calls remain even if a function is inlined into another function, but it is useful to be able to turn this off for users who are interested in a lower-level trace, i.e. one that reflects what functions are called post-inlining. (We use this to generate link order files for Chromium.) LLVM already has a pass for inserting similar instrumentation calls to mcount(), which it does after inlining. This patch renames and extends that pass to handle calls both to mcount and the cygprofile functions, before and/or after inlining as controlled by function attributes. Differential Revision: https://reviews.llvm.org/D39287 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@318195 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-12Revert "TargetMachine: Merge TargetMachine and LLVMTargetMachine"Matthias Braun
Reverting to investigate layering effects of MCJIT not linking libCodeGen but using TargetMachine::getNameWithPrefix() breaking the lldb bots. This reverts commit r315633. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@315637 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-12TargetMachine: Merge TargetMachine and LLVMTargetMachineMatthias Braun
Merge LLVMTargetMachine into TargetMachine. - There is no in-tree target anymore that just implements TargetMachine but not LLVMTargetMachine. - It should still be possible to stub out all the various functions in case a target does not want to use lib/CodeGen - This simplifies the code and avoids methods ending up in the wrong interface. Differential Revision: https://reviews.llvm.org/D38489 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@315633 91177308-0d34-0410-b5e6-96231b3b80d8
2017-09-23[Support] Rename tool_output_file to ToolOutputFile, NFCReid Kleckner
This class isn't similar to anything from the STL, so it shouldn't use the STL naming conventions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@314050 91177308-0d34-0410-b5e6-96231b3b80d8
2017-09-15This patch fixes https://bugs.llvm.org/show_bug.cgi?id=32352 Vivek Pandya
It enables OptimizationRemarkEmitter::allowExtraAnalysis and MachineOptimizationRemarkEmitter::allowExtraAnalysis to return true not only for -fsave-optimization-record but when specific remarks are requested with command line options. The diagnostic handler used to be callback now this patch adds a class DiagnosticHandler. It has virtual method to provide custom diagnostic handler and methods to control which particular remarks are enabled. However LLVM-C API users can still provide callback function for diagnostic handler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313390 91177308-0d34-0410-b5e6-96231b3b80d8
2017-09-15This reverts r313381Vivek Pandya
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313387 91177308-0d34-0410-b5e6-96231b3b80d8
2017-09-15This patch fixes https://bugs.llvm.org/show_bug.cgi?id=32352 Vivek Pandya
It enables OptimizationRemarkEmitter::allowExtraAnalysis and MachineOptimizationRemarkEmitter::allowExtraAnalysis to return true not only for -fsave-optimization-record but when specific remarks are requested with command line options. The diagnostic handler used to be callback now this patch adds a class DiagnosticHandler. It has virtual method to provide custom diagnostic handler and methods to control which particular remarks are enabled. However LLVM-C API users can still provide callback function for diagnostic handler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313382 91177308-0d34-0410-b5e6-96231b3b80d8
2017-08-03Delete Default and JITDefault code modelsRafael Espindola
IMHO it is an antipattern to have a enum value that is Default. At any given piece of code it is not clear if we have to handle Default or if has already been mapped to a concrete value. In this case in particular, only the target can do the mapping and it is nice to make sure it is always done. This deletes the two default enum values of CodeModel and uses an explicit Optional<CodeModel> when it is possible that it is unspecified. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@309911 91177308-0d34-0410-b5e6-96231b3b80d8
2017-07-31[llc][NFC] Update message in assert.Quentin Colombet
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@309600 91177308-0d34-0410-b5e6-96231b3b80d8
2017-07-31[TargetPassConfig] Feature generic options to setup start/stop-after/beforeQuentin Colombet
This patch refactors the code used in llc such that all the users of the addPassesToEmitFile API have access to a homogeneous way of handling start/stop-after/before options right out of the box. In particular, just invoking addPassesToEmitFile will set the proper pipeline without additional effort (modulo parsing a .mir file if the start-before/after options are used. NFC. Differential Revision: https://reviews.llvm.org/D30913 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@309599 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-30[ORE] Add diagnostics hotness thresholdBrian Gesiak
Summary: Add an option to prevent diagnostics that do not meet a minimum hotness threshold from being output. When generating optimization remarks for large codebases with a ton of cold code paths, this option can be used to limit the optimization remark output at a reasonable size. Discussion of this change can be read here: http://lists.llvm.org/pipermail/llvm-dev/2017-June/114377.html Reviewers: anemet, davidxl, hfinkel Reviewed By: anemet Subscribers: qcolombet, javed.absar, fhahn, eraman, llvm-commits Differential Revision: https://reviews.llvm.org/D34867 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306912 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-30[ORE] Unify spelling as "diagnostics hotness"Brian Gesiak
Summary: To enable profile hotness information in diagnostics output, Clang takes the option `-fdiagnostics-show-hotness` -- that's "diagnostics", with an "s" at the end. Clang also defines `CodeGenOptions::DiagnosticsWithHotness`. LLVM, on the other hand, defines `LLVMContext::getDiagnosticHotnessRequested` -- that's "diagnostic", not "diagnostics". It's a small difference, but it's confusing, typo-inducing, and frustrating. Add a new method with the spelling "diagnostics", and "deprecate" the old spelling. Reviewers: anemet, davidxl Reviewed By: anemet Subscribers: llvm-commits, mehdi_amini Differential Revision: https://reviews.llvm.org/D34864 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306848 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-06llc: Add ability to parse mir from stdinMatthias Braun
- Add -x <language> option to switch between IR and MIR inputs. - Change MIR parser to read from stdin when filename is '-'. - Add a simple mir roundtrip test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@304825 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-06CodeGen: Refactor MIR parsingMatthias Braun
When parsing .mir files immediately construct the MachineFunctions and put them into MachineModuleInfo. This allows us to get rid of the delayed construction (and delayed error reporting) through the MachineFunctionInitialzier interface. Differential Revision: https://reviews.llvm.org/D33809 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@304758 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-06llc: Create custom pass pipeline for .mir files; NFCIMatthias Braun
Create a custom pass pipeline when loading .mir files even in --start-after/--start-before cases. This streamlines the mir handling code and prepares for an upcoming commit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@304755 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-02RegisterScavenging: Add ScavengerTest passMatthias Braun
This pass allows to run the register scavenging independently of PrologEpilogInserter to allow targeted testing. Also adds some basic register scavenging tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@304606 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-18[LegacyPassManager] Remove TargetMachine constructorsFrancis Visoiu Mistrih
This provides a new way to access the TargetMachine through TargetPassConfig, as a dependency. The patterns replaced here are: * Passes handling a null TargetMachine call `getAnalysisIfAvailable<TargetPassConfig>`. * Passes not handling a null TargetMachine `addRequired<TargetPassConfig>` and call `getAnalysis<TargetPassConfig>`. * MachineFunctionPasses now use MF.getTarget(). * Remove all the TargetMachine constructors. * Remove INITIALIZE_TM_PASS. This fixes a crash when running `llc -start-before prologepilog`. PEI needs StackProtector, which gets constructed without a TargetMachine by the pass manager. The StackProtector pass doesn't handle the case where there is no TargetMachine, so it segfaults. Related to PR30324. Differential Revision: https://reviews.llvm.org/D33222 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303360 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-15[X86] Relocate code of replacement of subtarget unsupported masked memory ↵Ayman Musa
intrinsics to run also on -O0 option. Currently, when masked load, store, gather or scatter intrinsics are used, we check in CodeGenPrepare pass if the subtarget support these intrinsics, if not we replace them with scalar code - this is a functional transformation not an optimization (not optional). CodeGenPrepare pass does not run when the optimization level is set to CodeGenOpt::None (-O0). Functional transformation should run with all optimization levels, so here I created a new pass which runs on all optimization levels and does no more than this transformation. Differential Revision: https://reviews.llvm.org/D32487 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303050 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-10Add a late IR expansion pass for the experimental reduction intrinsics.Amara Emerson
This pass uses a new target hook to decide whether or not to expand a particular intrinsic to the shuffevector sequence. Differential Revision: https://reviews.llvm.org/D32245 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302631 91177308-0d34-0410-b5e6-96231b3b80d8
2017-04-21Move Split DWARF handling to an MC option/command line argument rather than ↵David Blaikie
using metadata Since Split DWARF needs to name the actual .dwo file that is generated, it can't be known at the time the llvm::Module is produced as it may be merged with other Modules before the object is generated and that object may be generated with any name. By passing the Split DWARF file name when LLVM is producing object code the .dwo file name in the object file can match correctly. The support for Split DWARF for implicit modules remains the same - using metadata to store the dwo name and dwo id so that potentially multiple skeleton CUs referring to different dwo files can be generated from one llvm::Module. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301062 91177308-0d34-0410-b5e6-96231b3b80d8
2017-04-01Revert "Feature generic option to setup start/stop-after/before"Quentin Colombet
This reverts commit r299282. Didn't intend to commit this :( git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@299288 91177308-0d34-0410-b5e6-96231b3b80d8
2017-04-01Feature generic option to setup start/stop-after/beforeQuentin Colombet
This patch refactors the code used in llc such that all the users of the addPassesToEmitFile API have access to a homogeneous way of handling start/stop-after/before options right out of the box. Previously each user would have needed to duplicate this logic and set up its own options. NFC git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@299282 91177308-0d34-0410-b5e6-96231b3b80d8
2017-02-28[Assembler] Add test for !srcloc references in assembler diagsSanne Wouda
Summary: clang adds !srcloc metadata to inline assembly in LLVM bitcode generated for inline assembly in C. The value of this !srcloc is passed to the diagnostics handler if the inline assembly generates a diagnostic. clang is able to turn this cookie back to a location in the C source file. To test this functionality without a dependency, make llc print the !srcloc metadata if it is present. The added test uses this mechanism to test that the correct !srclocs are passed to the diag handler. Reviewers: rengolin, rnk, echristo, grosbach, mehdi_amini Reviewed By: mehdi_amini Subscribers: mehdi_amini, llvm-commits Differential Revision: https://reviews.llvm.org/D30167 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@296465 91177308-0d34-0410-b5e6-96231b3b80d8
2017-02-03[LLC] Add an inline assembly diagnostics handler.Sanne Wouda
Summary: llc would hit a fatal error for errors in inline assembly. The diagnostics message is now printed. Reviewers: rengolin, MatzeB, javed.absar, anemet Reviewed By: anemet Subscribers: jyknight, nemanjai, llvm-commits Differential Revision: https://reviews.llvm.org/D29408 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@293999 91177308-0d34-0410-b5e6-96231b3b80d8
2017-01-26[llc] Add -pass-remarks-outputAdam Nemet
This is the opt/llc counterpart of -fsave-optimization-record to output optimization remarks in a YAML file. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@293121 91177308-0d34-0410-b5e6-96231b3b80d8
2017-01-25[llc] Add -pass-remarks-with-hotnessAdam Nemet
Analogous to the code in opt, this enables hotness in opt-remarks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@293113 91177308-0d34-0410-b5e6-96231b3b80d8
2017-01-25New OptimizationRemarkEmitter pass for MIRAdam Nemet
This allows MIR passes to emit optimization remarks with the same level of functionality that is available to IR passes. It also hooks up the greedy register allocator to report spills. This allows for interesting use cases like increasing interleaving on a loop until spilling of registers is observed. I still need to experiment whether reporting every spill scales but this demonstrates for now that the functionality works from llc using -pass-remarks*=<pass>. Differential Revision: https://reviews.llvm.org/D29004 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@293110 91177308-0d34-0410-b5e6-96231b3b80d8
2017-01-17llc: Update link componentsMatt Arsenault
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292198 91177308-0d34-0410-b5e6-96231b3b80d8
2017-01-17llc: Update LLVMBuildMatt Arsenault
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292196 91177308-0d34-0410-b5e6-96231b3b80d8
2017-01-17llc: Initialize more passesMatt Arsenault
Targets can add these. Initialize them so -print-before/-print-after etc. work. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292195 91177308-0d34-0410-b5e6-96231b3b80d8
2017-01-05MC: support passing search paths to the IASSaleem Abdulrasool
This is needed to support inclusion in inline assembly via the `.include` directive. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@291085 91177308-0d34-0410-b5e6-96231b3b80d8
2016-12-06[llc] Fix -stop-after=consthoist initializing the pass.Davide Italiano
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@288864 91177308-0d34-0410-b5e6-96231b3b80d8
2016-11-19[CMake] llc depends on intrinsics_genChris Bieneman
llc.cpp has the following include chain: llvm/Analysis/TargetLibraryInfo.h llvm/IR/Function.h llvm/IR/Argument.h llvm/IR/Attributes.h llvm/IR/Attributes.gen This means llc needs to depend on intrinsics_gen. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@287422 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-01Revert "Use StringRef instead of raw pointer in TargetRegistry API (NFC)"Mehdi Amini
This reverts commit r283017. Creates an infinite loop somehow. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283019 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-01Use StringRef instead of raw pointer in TargetRegistry API (NFC)Mehdi Amini
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283017 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-23llc: Add -start-before/-stop-before optionsMatthias Braun
Differential Revision: https://reviews.llvm.org/D23089 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@282302 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-01Add a counter-function insertion passHal Finkel
As discussed in https://reviews.llvm.org/D22666, our current mechanism to support -pg profiling, where we insert calls to mcount(), or some similar function, is fundamentally broken. We insert these calls in the frontend, which means they get duplicated when inlining, and so the accumulated execution counts for the inlined-into functions are wrong. Because we don't want the presence of these functions to affect optimizaton, they should be inserted in the backend. Here's a pass which would do just that. The knowledge of the name of the counting function lives in the frontend, so we're passing it here as a function attribute. Clang will be updated to use this mechanism. Differential Revision: https://reviews.llvm.org/D22825 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@280347 91177308-0d34-0410-b5e6-96231b3b80d8
2016-08-24CodeGen: Remove MachineFunctionAnalysis => Enable (Machine)ModulePassesMatthias Braun
Re-apply this patch, hopefully I will get away without any warnings in the constructor now. This patch removes the MachineFunctionAnalysis. Instead we keep a map from IR Function to MachineFunction in the MachineModuleInfo. This allows the insertion of ModulePasses into the codegen pipeline without breaking it because the MachineFunctionAnalysis gets dropped before a module pass. Peak memory should stay unchanged without a ModulePass in the codegen pipeline: Previously the MachineFunction was freed at the end of a codegen function pipeline because the MachineFunctionAnalysis was dropped; With this patch the MachineFunction is freed after the AsmPrinter has finished. Differential Revision: http://reviews.llvm.org/D23736 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279602 91177308-0d34-0410-b5e6-96231b3b80d8
2016-08-24MachineModuleInfo: Avoid dummy constructor, use INITIALIZE_TM_PASSMatthias Braun
Change this pass constructor to just accept a const TargetMachine * and use INITIALIZE_TM_PASS, that way we can get rid of the dummy constructor. The pass will still fail when calling the default constructor leading to TM == nullptr, this is no different than before but is more in line what other codegen passes are doing and avoids the dummy constructor. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279598 91177308-0d34-0410-b5e6-96231b3b80d8
2016-08-23Revert r279564. It introduces undefined behavior (binding a reference to aRichard Smith
dereferenced null pointer) in MachineModuleInfo::MachineModuleInfo that causes -Werror builds (including several buildbots) to fail. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279580 91177308-0d34-0410-b5e6-96231b3b80d8
2016-08-23CodeGen: Remove MachineFunctionAnalysis => Enable (Machine)ModulePassesMatthias Braun
Re-apply this commit with the deletion of a MachineFunction delegated to a separate pass to avoid use after free when doing this directly in AsmPrinter. This patch removes the MachineFunctionAnalysis. Instead we keep a map from IR Function to MachineFunction in the MachineModuleInfo. This allows the insertion of ModulePasses into the codegen pipeline without breaking it because the MachineFunctionAnalysis gets dropped before a module pass. Peak memory should stay unchanged without a ModulePass in the codegen pipeline: Previously the MachineFunction was freed at the end of a codegen function pipeline because the MachineFunctionAnalysis was dropped; With this patch the MachineFunction is freed after the AsmPrinter has finished. Differential Revision: http://reviews.llvm.org/D23736 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279564 91177308-0d34-0410-b5e6-96231b3b80d8
2016-08-23Revert "(HEAD -> master, origin/master, origin/HEAD) CodeGen: Remove ↵Matthias Braun
MachineFunctionAnalysis => Enable (Machine)ModulePasses" Reverting while tracking down a use after free. This reverts commit r279502. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279503 91177308-0d34-0410-b5e6-96231b3b80d8
2016-08-23CodeGen: Remove MachineFunctionAnalysis => Enable (Machine)ModulePassesMatthias Braun
This patch removes the MachineFunctionAnalysis. Instead we keep a map from IR Function to MachineFunction in the MachineModuleInfo. This allows the insertion of ModulePasses into the codegen pipeline without breaking it because the MachineFunctionAnalysis gets dropped before a module pass. Peak memory should stay unchanged without a ModulePass in the codegen pipeline: Previously the MachineFunction was freed at the end of a codegen function pipeline because the MachineFunctionAnalysis was dropped; With this patch the MachineFunction is freed after the AsmPrinter has finished. Differential Revision: http://reviews.llvm.org/D23736 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279502 91177308-0d34-0410-b5e6-96231b3b80d8
2016-08-02CommandFlags.h/llc: Move StopAfter/StartBefore options to llc.Matthias Braun
Move those two options to llc: The options in CommandFlags.h are shared by dsymutil, gold, llc, llvm-dwp, llvm-lto, llvm-mc, lto, opt. -stop-after/-start-after only affect codegen passes however only gold and llc actually create codegen passes and I believe these flags to be only useful for users of llc. For the other tools they are just highly confusing: -stop-after claims to "Stop compilation after a specific pass" which is not true in the context of the "opt" tool. Differential Revision: https://reviews.llvm.org/D23050 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277551 91177308-0d34-0410-b5e6-96231b3b80d8
2016-07-16llc: Add support for -run-pass noneMatthias Braun
This does not schedule any passes besides the ones necessary to construct and print the machine function. This is useful to test .mir file reading and printing. Differential Revision: http://reviews.llvm.org/D22432 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@275664 91177308-0d34-0410-b5e6-96231b3b80d8
2016-07-16llc: Move pass query/add code into an own function; NFCMatthias Braun
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@275663 91177308-0d34-0410-b5e6-96231b3b80d8
2016-07-13[MIR] Print on the given output instead of stderr.Quentin Colombet
Currently the MIR framework prints all its outputs (errors and actual representation) on stderr. This patch fixes that by printing the regular output in the output specified with -o. Differential Revision: http://reviews.llvm.org/D22251 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@275314 91177308-0d34-0410-b5e6-96231b3b80d8
2016-07-13Rename llc's -fpreserve-as-comments flag -preserve-as-comments.Nirav Dave
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@275266 91177308-0d34-0410-b5e6-96231b3b80d8
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