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* [Driver] Pass -f[no-]emulated-tls and set up ExplicitEmulatedTLSChih-Hung Hsieh2018-03-011-0/+1
| | | | | | | | | | Since LLVM r326341, default EmulatedTLS mode is decided in backend according to target triple. Any front-end should pass -f[no]-emulated-tls to backend and set up ExplicitEmulatedTLS only when the flags are used. Differential Revision: https://reviews.llvm.org/D43965 llvm-svn: 326499
* [ThinLTO] Allow indexing to request backend to ignore the moduleVitaly Buka2018-02-161-5/+17
| | | | | | | | | | | | | | | | | | Summary: Gold plugin does not add pass to ThinLTO modules without useful symbols. In this case ThinLTO can't create corresponding index file and some features, like CFI, cannot be processes by backed correctly without index. Given that we don't need the backed output we can request it to avoid processing the module. This is implemented by this patch using new "SkipModuleByDistributedBackend" flag. Reviewers: pcc, tejohnson Subscribers: mehdi_amini, inglorion, eraman, cfe-commits Differential Revision: https://reviews.llvm.org/D42995 llvm-svn: 325411
* [ThinLTO] Ignore object files with no ThinLTO modules if -fthinlto-index= is setVitaly Buka2018-02-161-5/+11
| | | | | | | | | | | | | | | | | Summary: ThinLTO compilation may decide not to split module and keep at as regular LTO. In this can this module already processed during indexing and already a part of merged object file. So here we can just skip it. Reviewers: pcc, tejohnson Reviewed By: tejohnson Subscribers: mehdi_amini, inglorion, eraman, cfe-commits Differential Revision: https://reviews.llvm.org/D42680 llvm-svn: 325410
* Update for llvm change. NFC.Rafael Espindola2018-02-141-2/+2
| | | | llvm-svn: 325156
* NewPM: Improve/fix GCOV - which needs to run early in the pass pipeline.David Blaikie2018-01-231-3/+7
| | | | | | | Using a new extension point in the new PM, register GCOV at the start of the pipeline rather than the end. llvm-svn: 323167
* Use an enum value instead of a string.Rafael Espindola2018-01-181-17/+2
| | | | | | | | The old StringSwitch use was also broken. It assumed that a StringSwitch returns Optional<T> instead of T and was missing a .Default. llvm-svn: 322792
* Wire up GCOV to the new pass managerDavid Blaikie2018-01-091-15/+24
| | | | | | | | | | GCOV in the old pass manager also strips debug info (if debug info is disabled/only produced for profiling anyway) after the GCOV pass runs. I think the strip pass hasn't been ported to the new pass manager, so it might take me a little while to wire that up. llvm-svn: 322126
* [Driver] Add flag enabling the function stack size section that was added in ↵Sean Eveson2018-01-081-0/+1
| | | | | | | | | | r319430 Adds the -fstack-size-section flag to enable the .stack_sizes section. The flag defaults to on for the PS4 triple. Differential Revision: https://reviews.llvm.org/D40712 llvm-svn: 321992
* [hwasan] Implement -fsanitize-recover=hwaddress.Evgeniy Stepanov2017-12-201-1/+5
| | | | | | | | | | | | Summary: Very similar to AddressSanitizer, with the exception of the error type encoding. Reviewers: kcc, alekseyshl Subscribers: cfe-commits, kubamracek, llvm-commits, hiraditya Differential Revision: https://reviews.llvm.org/D41417 llvm-svn: 321203
* Hardware-assisted AddressSanitizer (clang part).Evgeniy Stepanov2017-12-091-0/+12
| | | | | | | | | | | | | | Summary: Driver, frontend and LLVM codegen for HWASan. A clone of ASan, basically. Reviewers: kcc, pcc, alekseyshl Subscribers: srhines, javed.absar, cfe-commits Differential Revision: https://reviews.llvm.org/D40936 llvm-svn: 320232
* Toolchain: Normalize dwarf, sjlj and seh ehMartell Malone2017-11-291-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a re-apply of r319294. adds -fseh-exceptions and -fdwarf-exceptions flags clang will check if the user has specified an exception model flag, in the absense of specifying the exception model clang will then check the driver default and append the model flag for that target to cc1 -fno-exceptions has a higher priority then specifying the model move __SEH__ macro definitions out of Targets into InitPreprocessor behind the -fseh-exceptions flag move __ARM_DWARF_EH__ macrodefinitions out of verious targets and into InitPreprocessor behind the -fdwarf-exceptions flag and arm|thumb check remove unused USESEHExceptions from the MinGW Driver fold USESjLjExceptions into a new GetExceptionModel function that gives the toolchain classes more flexibility with eh models Reviewers: rnk, mstorsjo Differential Revision: https://reviews.llvm.org/D39673 llvm-svn: 319297
* Revert "Toolchain: Normalize dwarf, sjlj and seh eh"Martell Malone2017-11-291-4/+0
| | | | | | | | This reverts rL319294. The windows sanitizer does not like seh on x86. Will re apply with None type for x86 llvm-svn: 319295
* Toolchain: Normalize dwarf, sjlj and seh ehMartell Malone2017-11-291-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | adds -fseh-exceptions and -fdwarf-exceptions flags clang will check if the user has specified an exception model flag, in the absense of specifying the exception model clang will then check the driver default and append the model flag for that target to cc1 clang cc1 assumes dwarf is the default if none is passed and -fno-exceptions has a higher priority then specifying the model move __SEH__ macro definitions out of Targets into InitPreprocessor behind the -fseh-exceptions flag move __ARM_DWARF_EH__ macrodefinitions out of verious targets and into InitPreprocessor behind the -fdwarf-exceptions flag and arm|thumb check remove unused USESEHExceptions from the MinGW Driver fold USESjLjExceptions into a new GetExceptionModel function that gives the toolchain classes more flexibility with eh models Reviewers: rnk, mstorsjo Differential Revision: https://reviews.llvm.org/D39673 llvm-svn: 319294
* Update for layering fix in LLVM CodeGen<>TargetDavid Blaikie2017-11-171-1/+1
| | | | llvm-svn: 318491
* [NewPassManager] Pass the -fdebug-pass-manager flag setting into the ↵Craig Topper2017-11-141-4/+4
| | | | | | | | | | | | | | | | Analysis managers to match what we do in opt Summary: Currently the -fdebug-pass-manager flag for clang doesn't enable the debug logging in the analysis managers. This is different than what the switch does when passed to opt. Reviewers: chandlerc Reviewed By: chandlerc Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D40007 llvm-svn: 318140
* [PM] Wire up support for the bounds checking sanitizer with the new PM.Chandler Carruth2017-11-141-0/+14
| | | | | | | | | | | | | | | Not much interesting here. Mostly wiring things together. One thing worth noting is that the approach is substantially different from the old PM. Here, the -O0 case works fundamentally differently in that we just directly build the pipeline without any callbacks or other cruft. In some ways, this is nice and clean. However, I don't like that it causes the sanitizers to be enabled with different changes at different times. =/ Suggestions for a better way to do this are welcome. Differential Revision: https://reviews.llvm.org/D39085 llvm-svn: 318131
* [PM] Add a missing header that I had in the next commit but was neededChandler Carruth2017-11-141-0/+1
| | | | | | in r318128. Should fix the build. llvm-svn: 318130
* [PM] Port BoundsChecking to the new PM.Chandler Carruth2017-11-141-1/+1
| | | | | | | | | | | Registers it and everything, updates all the references, etc. Next patch will add support to Clang's `-fexperimental-new-pass-manager` path to actually enable BoundsChecking correctly. Differential Revision: https://reviews.llvm.org/D39084 llvm-svn: 318128
* [ThinLTO] Handle -fdebug-pass-manager for backend invocations via clangTeresa Johnson2017-11-131-0/+1
| | | | | | | | | | | | | Recommit of r317951 and r317951 along with what I believe should fix the remaining buildbot failures - the target triple should be specified for both the ThinLTO pre-thinlink compile and backend (post-thinlink) compile to ensure it is consistent. Original description: The LTO Config field wasn't being set when invoking a ThinLTO backend via clang (i.e. for distributed builds). llvm-svn: 318042
* Revert "[ThinLTO] Handle -fdebug-pass-manager for backend invocations via clang"Teresa Johnson2017-11-111-1/+0
| | | | | | | This reverts commit r317951 and r317952. The new test is aborting on some bots and I'll need to investigate later. llvm-svn: 317959
* [ThinLTO] Handle -fdebug-pass-manager for backend invocations via clangTeresa Johnson2017-11-101-0/+1
| | | | | | | | | | | | | | Summary: The LTO Config field wasn't being set when invoking a ThinLTO backend via clang (i.e. for distributed builds). Reviewers: danielcdh Subscribers: mehdi_amini, inglorion, eraman, cfe-commits Differential Revision: https://reviews.llvm.org/D39923 llvm-svn: 317951
* [SanitizerCoverage] Add stack depth tracing instrumentation.Matt Morehouse2017-08-181-0/+1
| | | | | | | | | | | | | | | | | | | | | | Summary: Augment SanitizerCoverage to insert maximum stack depth tracing for use by libFuzzer. The new instrumentation is enabled by the flag -fsanitize-coverage=stack-depth and is compatible with the existing trace-pc-guard coverage. The user must also declare the following global variable in their code: thread_local uintptr_t __sancov_lowest_stack https://bugs.llvm.org/show_bug.cgi?id=33857 Reviewers: vitalybuka, kcc Reviewed By: vitalybuka Subscribers: kubamracek, hiraditya, cfe-commits, llvm-commits Differential Revision: https://reviews.llvm.org/D36839 llvm-svn: 311186
* Update for llvm change.Rafael Espindola2017-08-031-10/+12
| | | | llvm-svn: 309912
* [sanitizer-coverage] clang flags pumbing for -fsanitize-coverage=pc-tableKostya Serebryany2017-07-281-0/+1
| | | | llvm-svn: 309338
* Make new PM honor -fdebug-info-for-profiling (clang side)Dehao Chen2017-07-271-22/+21
| | | | | | | | | | | | | | Summary: The new PM needs to invoke add-discriminator pass when building with -fdebug-info-for-profiling. Reviewers: chandlerc, davidxl Reviewed By: chandlerc Subscribers: sanjoy, cfe-commits Differential Revision: https://reviews.llvm.org/D35746 llvm-svn: 309282
* [PM] Setup TargetLibraryInfo correctly for the new pass manager.Chandler Carruth2017-07-251-0/+8
| | | | | | | Without this, -fno-builtin and friends doesn't work. Added the obvious RUN lines to the test for -fno-builtin and they pass now. llvm-svn: 308967
* Use DenseMap instead std::map for GVSummaryMapTyDehao Chen2017-07-101-1/+1
| | | | | | | | | | | | | | Summary: Frontend change for https://reviews.llvm.org/D35148 Reviewers: tejohnson Reviewed By: tejohnson Subscribers: sanjoy, cfe-commits Differential Revision: https://reviews.llvm.org/D35153 llvm-svn: 307584
* Changed Opts.EABIVersion type string to llvm::EABI enum classYuka Takahashi2017-07-011-5/+1
| | | | | | | | | | Summary: Changed EABIVersion type from string to llvm::EABI. It seems it was just a typo and this is intended implementation. Differential Revision: https://reviews.llvm.org/D34595 llvm-svn: 306953
* Remove Clang support for '-fvectorize-slp-aggressive' which used LLVM'sChandler Carruth2017-06-301-1/+0
| | | | | | | | | | | | | | | | | | basic block vectorizer. This vectorizer has had no known users for many, many years and is completely surpassed by the normal '-fvectorize-slp'-controlled SLP vectorizer in LLVM. Hal proposed this back in 2014 to no objections: http://lists.llvm.org/pipermail/llvm-dev/2014-November/079091.html While this patch completely removes the flag, Joerg is working on a patch that will add it back in a way that warns users and ignores the flag in a clear and well factored way (so that we can keep doing this going forward). Differential Revision: https://reviews.llvm.org/D34846 llvm-svn: 306786
* [PM] Add support for sample PGO in the new pass manager (clang-side)Dehao Chen2017-06-291-1/+5
| | | | | | | | | | | | | | Summary: This implements the clang bits of https://reviews.llvm.org/D34720, and add corresponding test to verify if it worked. Reviewers: chandlerc, davidxl, davide, tejohnson Reviewed By: chandlerc, tejohnson Subscribers: tejohnson, sanjoy, mehdi_amini, eraman, cfe-commits Differential Revision: https://reviews.llvm.org/D34721 llvm-svn: 306764
* [NewPM] Add Clang cc1 flag -fdebug-pass-manager for printing debug information.Tim Shen2017-06-291-4/+7
| | | | | | Differential Revision: https://reviews.llvm.org/D34790 llvm-svn: 306757
* [ThinkLTO] Invoke build(Thin)?LTOPreLinkDefaultPipeline.Tim Shen2017-06-291-4/+16
| | | | | | | | | | | | | Previously it doesn't actually invoke the designated new PM builder functions. This patch moves NameAnonGlobalPass out from PassBuilder, as Chandler points out that PassBuilder is used for non-O0 builds, and for optimizations only. Differential Revision: https://reviews.llvm.org/D34728 llvm-svn: 306756
* Apply summary-based dead stripping to regular LTO modules with summaries.Peter Collingbourne2017-06-151-4/+4
| | | | | | | | | | | | | | | If a regular LTO module has a summary index, then instead of linking it into the combined regular LTO module right away, add it to the combined summary index and associate it with a special module that represents the combined regular LTO module. Any such modules are linked during LTO::run(), at which time we use the results of summary-based dead stripping to control whether to link prevailing symbols. Differential Revision: https://reviews.llvm.org/D33922 llvm-svn: 305482
* Represent debug information compression type fullySaleem Abdulrasool2017-06-091-1/+1
| | | | | | | | | | | This is tied with the LLVM side of the change to expose the debug information compression types to clang. We now track the compression type as an enumeration rather than a boolean. We still use the same value (GNU) that we did previously. This is in preparation to support passing down the compression type and switch it based on the command line. llvm-svn: 305039
* [sanitizer-coverage] one more flavor of coverage: ↵Kostya Serebryany2017-06-081-0/+1
| | | | | | -fsanitize-coverage=inline-8bit-counters. Experimental so far, not documenting yet. Reapplying revisions 304630, 304631, 304632, 304673, see PR33308 llvm-svn: 305026
* Revert "[sanitizer-coverage] one more flavor of coverage: ↵Renato Golin2017-06-051-1/+0
| | | | | | | | -fsanitize-coverage=inline-8bit-counters. Experimental so far, not documenting yet. (clang part)" This reverts commit r304631, as it broke ARM/AArch64 bots for 2 days. llvm-svn: 304697
* [sanitizer-coverage] one more flavor of coverage: ↵Kostya Serebryany2017-06-031-0/+1
| | | | | | -fsanitize-coverage=inline-8bit-counters. Experimental so far, not documenting yet. (clang part) llvm-svn: 304631
* [ThinLTO] Wire up ThinLTO and new PMTim Shen2017-06-011-3/+21
| | | | | | | | | | | | Summary: This patch teaches clang to use and propagate new PM in ThinLTO. Reviewers: davide, chandlerc, tejohnson Subscribers: mehdi_amini, Prazek, inglorion, cfe-commits Differential Revision: https://reviews.llvm.org/D33692 llvm-svn: 304496
* Remove ignore-empty-index-file optionTeresa Johnson2017-05-121-1/+2
| | | | | | | | | | | | | | | | Summary: Clang changes to remove this option and replace with a parameter always set in the context of a ThinLTO distributed backend. Depends on D33133. Reviewers: pcc Subscribers: mehdi_amini, eraman, cfe-commits Differential Revision: https://reviews.llvm.org/D33134 llvm-svn: 302940
* [asan] A clang flag to enable ELF globals-gc.Evgeniy Stepanov2017-05-091-0/+2
| | | | | | | | | | | | This feature is subtly broken when the linker is gold 2.26 or earlier. See the following bug for details: https://sourceware.org/bugzilla/show_bug.cgi?id=19002 Since the decision needs to be made at compilation time, we can not test the linker version. The flag is off by default on ELF targets, and on otherwise. llvm-svn: 302591
* [sanitizer-coverage] implement -fsanitize-coverage=no-prune,... instead of a ↵Kostya Serebryany2017-05-051-0/+1
| | | | | | hidden -mllvm flag. clang part. llvm-svn: 302320
* Re-apply r302108, "IR: Use pointers instead of GUIDs to represent edges in ↵Peter Collingbourne2017-05-041-2/+6
| | | | | | | | the module summary. NFCI." with a fix for the clang backend. llvm-svn: 302176
* Revert "IR: Use pointers instead of GUIDs to represent edges in the module ↵Eric Liu2017-05-041-2/+2
| | | | | | | | summary. NFCI." This reverts commit r302108. llvm-svn: 302141
* IR: Use pointers instead of GUIDs to represent edges in the module summary. ↵Peter Collingbourne2017-05-041-2/+2
| | | | | | | | | | | | | | | | | | | | NFCI. When profiling a no-op incremental link of Chromium I found that the functions computeImportForFunction and computeDeadSymbols were consuming roughly 10% of the profile. The goal of this change is to improve the performance of those functions by changing the map lookups that they were previously doing into pointer dereferences. This is achieved by changing the ValueInfo data structure to be a pointer to an element of the global value map owned by ModuleSummaryIndex, and changing reference lists in the GlobalValueSummary to hold ValueInfos instead of GUIDs. This means that a ValueInfo will take a client directly to the summary list for a given GUID. Differential Revision: https://reviews.llvm.org/D32471 llvm-svn: 302108
* Object: Remove ModuleSummaryIndexObjectFile class.Peter Collingbourne2017-05-011-1/+0
| | | | | | Differential Revision: https://reviews.llvm.org/D32195 llvm-svn: 301832
* [asan] Unconditionally enable GC of globals on COFF.Evgeniy Stepanov2017-04-261-2/+1
| | | | | | | | | | | This change restores pre-r301225 behavior, where linker GC compatible global instrumentation was used on COFF targets disregarding -f(no-)data-sections and/or /Gw flags. This instrumentation puts each global in a COMDAT with an ASan descriptor for that global. It effectively enables -fdata-sections, but limits it to ASan-instrumented globals. llvm-svn: 301374
* [asan] Disable ASan global-GC depending on the target and compiler flags.Evgeniy Stepanov2017-04-241-6/+30
| | | | llvm-svn: 301225
* Move Split DWARF handling to an MC option/command line argument rather than ↵David Blaikie2017-04-211-0/+2
| | | | | | | | | | | | | | | | | | | 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. llvm-svn: 301063
* Don't pass FPOpFusion::Strict to the backendAdam Nemet2017-04-201-1/+3
| | | | | | | | | | | | | | | This restores the behavior prior to D31167 where the code-gen default was FPC_On which mapped to FPOpFusion::Standard. After merging the FE state (on/off) and the code-gen state (on/fast/off), the default became off to match the front-end. In other words, the front-end controls when to fuse along the language standards and the backend shouldn't override this by splitting fused intrinsics as FPOpFusion::Strict would imply. Differential Revision: https://reviews.llvm.org/D32301 llvm-svn: 300858
* Parse backend options during thinlto backend compile actionsDavid Blaikie2017-04-191-6/+5
| | | | llvm-svn: 300741
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