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* [lldb] Partly revert 370734: Test 'frame select -r' and fix that INT32_MIN ↵Raphael Isemann2019-09-302-20/+16
| | | | | | | | | | | breaks the option parser This somehow caused that 'frame select X' ends up being interpreted as 'frame select -r 1' when 'up' or 'down' were run before 'frame select X'. See rdar://55791276. Partly reverting to unbreak master. The changes that aren't reverted are the generic 'frame select -r' tests that are obviously NFC and test existing behavior. llvm-svn: 373194
* [lldb][clang][modern-type-lookup] Use ASTImporterSharedState in ↵Raphael Isemann2019-09-305-4/+43
| | | | | | | | | | | | | | | | | | ExternalASTMerger Summary: The ExternalASTMerger should use the ASTImporterSharedState. This allows it to handle std::pair in LLDB (but the rest of libc++ is still work in progress). Reviewers: martong, shafik, a.sidorin Subscribers: rnkovacs, christof, JDevlieghere, lldb-commits Tags: #lldb Differential Revision: https://reviews.llvm.org/D68140 llvm-svn: 373193
* [NFC][ARM][MVE] More testsSam Parker2019-09-301-0/+2014
| | | | | | Add some loop tests that cover different float operations and types. llvm-svn: 373192
* NFC changes to SelectionDAGBuilder::visitBitTestHeader(), preparing for PR43129Hans Wennborg2019-09-301-4/+4
| | | | llvm-svn: 373191
* Pre-commit a test case for PR43129.Hans Wennborg2019-09-301-0/+40
| | | | llvm-svn: 373190
* [llvm-locstats] Fix the test for the Hexagon targetDjordje Todorovic2019-09-301-0/+1
| | | | llvm-svn: 373189
* [ARM][MVE] Change VCTP operandSam Parker2019-09-309-49/+66
| | | | | | | | | | | | The VCTP instruction will calculate the predicate masked based upon the number of elements that need to be processed. I had inserted the sub before the vctp intrinsic and supplied it as the operand, but this is incorrect as the phi should directly feed the vctp. The sub is calculating the value for the next iteration. Differential Revision: https://reviews.llvm.org/D67921 llvm-svn: 373188
* [TargetLowering] Simplify expansion of S{ADD,SUB}ORoger Ferrer Ibanez2019-09-3016-6154/+3406
| | | | | | | | | | ISD::SADDO uses the suggested sequence described in the section §2.4 of the RISCV Spec v2.2. ISD::SSUBO uses the dual approach but checking for (non-zero) positive. Differential Revision: https://reviews.llvm.org/D47927 llvm-svn: 373187
* [ARM][CGP] Allow signext argumentsSam Parker2019-09-304-15/+62
| | | | | | | | | | | | As we perform a zext on any arguments used in the promoted tree, it doesn't matter if they're marked as signext. The only permitted user(s) in the tree which would interpret the sign bits are signed icmps. For these instructions, their promoted operands are truncated before the icmp uses them. Differential Revision: https://reviews.llvm.org/D68019 llvm-svn: 373186
* Revert "Update polly test for SCEV change."Tim Northover2019-09-301-1/+1
| | | | | | The motivating SCEV change was reverted as incorrect. llvm-svn: 373185
* Revert "[SCEV] add no wrap flag for SCEVAddExpr."Tim Northover2019-09-305-8/+8
| | | | | | | | This reverts r366419 because the analysis performed is within the context of the loop and it's only valid to add wrapping flags to "global" expressions if they're always correct. llvm-svn: 373184
* Reland "[utils] Implement the llvm-locstats tool"Djordje Todorovic2019-09-308-0/+479
| | | | | | | | | | | | | | | | The tool reports verbose output for the DWARF debug location coverage. The llvm-locstats for each variable or formal parameter DIE computes what percentage from the code section bytes, where it is in scope, it has location description. The line 0 shows the number (and the percentage) of DIEs with no location information, but the line 100 shows the number (and the percentage) of DIEs where there is location information in all code section bytes (where the variable or parameter is in the scope). The line 50..59 shows the number (and the percentage) of DIEs where the location information is in between 50 and 59 percentage of its scope covered. Differential Revision: https://reviews.llvm.org/D66526 llvm-svn: 373183
* [SystemZ] Add SystemZPostRewrite in addPostRegAlloc() instead at -O0.Jonas Paulsson2019-09-302-1/+33
| | | | | | | | SystemZPostRewrite needs to be run before (it may emit COPYs) the Post-RA pseudo pass also at -O0, so it should be added in addPostRegAlloc(). Review: Ulrich Weigand llvm-svn: 373182
* [X86] Remove some redundant isel patterns. NFCICraig Topper2019-09-301-78/+0
| | | | | | | These are all also implemented in avx512_logical_lowering_types with support for masking. llvm-svn: 373181
* AMDGPU/GlobalISel: Fix select for v2s16 and/or/xorMatt Arsenault2019-09-304-60/+62
| | | | llvm-svn: 373180
* [test] Change llvm-readobj --arm-attributes to --arch-specific after r373125Fangrui Song2019-09-3038-48/+48
| | | | llvm-svn: 373179
* [ELF][test] Change llvm-readobj --arm-attributes to --arch-specific after ↵Fangrui Song2019-09-301-3/+3
| | | | | | r373125 llvm-svn: 373178
* [X86] Split v16i32/v8i64 bitreverse on avx512f targets without avx512bw to ↵Craig Topper2019-09-302-54/+52
| | | | | | enable the use of vpshufb on the 256-bit halves. llvm-svn: 373177
* Undef the macros after their useAditya Kumar2019-09-301-0/+2
| | | | | | | | | | | | | Summary: Reviewers: t.p.northover Subscribers: Differential Revision: https://reviews.llvm.org/D46378 llvm-svn: 373176
* [X86] Fix -Wunused-variable in -DLLVM_ENABLE_ASSERTIONS=off builds after r373174Fangrui Song2019-09-301-0/+1
| | | | llvm-svn: 373175
* [X86] Remove -x86-experimental-vector-widening-legalization command line flagCraig Topper2019-09-292-1257/+145
| | | | | | | | | This was added back to allow some performance regressions to be investigated. The main perf issue was fixed shortly after adding this back and no other major issues have been reported. So I think its safe to remove this again. llvm-svn: 373174
* Don't crash if a variable with a constexpr destructor has aRichard Smith2019-09-292-1/+11
| | | | | | value-dependent initializer. llvm-svn: 373173
* [X86] Add custom isel logic to match VPTERNLOG from 2 logic ops.Craig Topper2019-09-2927-589/+766
| | | | | | | | | | | | | | | There's room from improvement here, but this is a decent starting point. There are a few minor regressions in the vector-rotate tests, where we are now forming a vpternlog from an and before we get a chance to form it for a bitselect that we were matching previously. This results in an AND and an ANDN feeding the vpternlog where previously we just had an AND after the vpternlog. I think we can probably DAG combine the AND with the bitselect to get back to similar codegen. llvm-svn: 373172
* Add test case peeking through vector concat when combining insert into ↵Amaury Sechet2019-09-291-0/+71
| | | | | | shuffles. NFC llvm-svn: 373171
* [LLVM-C][Ocaml] Add MergeFunctions and DCE passAditya Kumar2019-09-2910-0/+41
| | | | | | | | | | | | | | | | | | | MergeFunctions and DCE pass are missing from OCaml/C-api. This patch adds them. Differential Revision: https://reviews.llvm.org/D65071 Reviewers: whitequark, hiraditya, deadalnix Reviewed By: whitequark Subscribers: llvm-commits Tags: #llvm Authored by: kren1 llvm-svn: 373170
* [Docs] Moves article links to new pagesDeForest Richards2019-09-295-27/+35
| | | | | | Moves existing article links on the Programming, Subsystem, and Reference documentation pages to new locations. Also moves Github Repository and Publications links to the sidebar. llvm-svn: 373169
* [MC] Emit unused undefined symbol even if its binding is not setFangrui Song2019-09-295-9/+37
| | | | | | | | | | | | | | | | | | | | | | | For the following two cases, we currently suppress the symbols. This patch emits them (compatible with GNU as). * `test2_a = undef`: if `undef` is otherwise unused. * `.hidden hidden`: if `hidden` is unused. This is the main point of the patch, because omitting the symbol would cause a linker semantic difference. It causes a behavior change that is not compatible with GNU as: .weakref foo1, bar1 When neither foo1 nor bar1 is used, we now emit bar1, which is arguably more consistent. Another change is that we will emit .TOC. for .TOC.@tocbase . For this directive, suppressing .TOC. can be seen as a size optimization, but we choose to drop it for simplicity and consistency. llvm-svn: 373168
* [DivRemPairs] Don't assert that we won't ever get expanded-form rem pairs in ↵Roman Lebedev2019-09-292-2/+36
| | | | | | | | | | | | | different BB's (PR43500) If we happen to have the same div in two basic blocks, and in one of those we also happen to have the rem part, we'd match the div-rem pair, but the wrong ones. So let's drop overly-ambiguous assert. Fixes https://bugs.llvm.org/show_bug.cgi?id=43500 llvm-svn: 373167
* [SLP] Fix for PR31847: Assertion failed: (isLoopInvariant(Operands[i], L) && ↵Alexey Bataev2019-09-2923-1335/+918
| | | | | | | | | | | | | | | | | | | | "SCEVAddRecExpr operand is not loop-invariant!") Initially SLP vectorizer replaced all going-to-be-vectorized instructions with Undef values. It may break ScalarEvaluation and may cause a crash. Reworked SLP vectorizer so that it does not replace vectorized instructions by UndefValue anymore. Instead vectorized instructions are marked for deletion inside if BoUpSLP class and deleted upon class destruction. Reviewers: mzolotukhin, mkuper, hfinkel, RKSimon, davide, spatel Subscribers: RKSimon, Gerolf, anemet, hans, majnemer, llvm-commits, sanjoy Differential Revision: https://reviews.llvm.org/D29641 llvm-svn: 373166
* [clang-format] Reference qualifiers in member templates causing extra ↵Paul Hoad2019-09-292-4/+89
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | indentation. Summary: The following code ``` struct f { template <class T> void bar() && noexcept {} }; ``` will be formatted to the following with LLVM style, and `AlwaysBreakTemplateDeclarations: Yes` ``` struct f { template <class T> void bar() && noexcept {} }; ``` The indentation of the `void bar()` line is wrong. Reviewers: klimek, owenpan, krasimir, timwoj, MyDeveloperDay Reviewed By: klimek, MyDeveloperDay Subscribers: MyDeveloperDay, ilya-biryukov, llvm-commits, cfe-commits Patch By: AndWass Tags: #clang-format, #clang, #llvm Differential Revision: https://reviews.llvm.org/D68072 llvm-svn: 373165
* [PowerPC] Fix conditions of assert in PPCAsmPrinterJinsong Ji2019-09-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | Summary: g++ build emits warning: llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp:667:77: error: suggest parentheses around ?&&? within ?||? [-Werror=parentheses] assert(MO.isGlobal() || MO.isCPI() || MO.isJTI() || MO.isBlockAddress() && ~~~~~~~~~~~~~~~~~~~~^~ "Unexpected operand type for LWZtoc pseudo."); I believe the intension is to assert all different types, so we should add a parentheses to include all '||'. Reviewers: #powerpc, sfertile, hubert.reinterpretcast, Xiangling_L Reviewed By: Xiangling_L Subscribers: wuzish, nemanjai, hiraditya, kbarton, MaskRay, shchenz, steven.zhang, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D68180 llvm-svn: 373164
* [ARM] Cortex-M4 schedule additionsDavid Green2019-09-298-47/+69
| | | | | | | | | | | | | | | | | | | This is an attempt to fill in some of the missing instructions from the Cortex-M4 schedule, and make it easier to do the same for other ARM cpus. - Some instructions are marked as hasNoSchedulingInfo as they are pseudos or otherwise do not require scheduling info - A lot of features have been marked not supported - Some WriteRes's have been added for cvt instructions. - Some extra instruction latencies have been added, notably by relaxing the regex for dsp instruction to catch more cases, and some fp instructions. This goes a long way to get the CompleteModel working for this CPU. It does not go far enough as to get all scheduling info for all output operands correct. Differential Revision: https://reviews.llvm.org/D67957 llvm-svn: 373163
* [cxx_status] Mark P0784R7 as partially complete.Richard Smith2019-09-291-1/+1
| | | | llvm-svn: 373162
* For now, disallow lifetime-extended temporaries with non-trivial (butRichard Smith2019-09-293-1/+31
| | | | | | | | | | | | constexpr) destructors from being used in the values of constexpr variables. The standard rules here are unclear at best, so rejecting the problematic cases seems prudent. Prior to this change, we would fail to run the destructors for these temporaries, even if they had side-effects, which is certainly not the right behavior. llvm-svn: 373161
* Fix checking for permitted results of constant expressions.Richard Smith2019-09-292-25/+73
| | | | | | | | | In the presence of mutable state, we need to check whether temporaries involved in a constant expression have permissible values at the end of the overall evaluation, rather than at the end of the evaluation of the initializer of the temporary. llvm-svn: 373160
* For P0784R7: compute whether a variable has constant destruction if itRichard Smith2019-09-2923-75/+325
| | | | | | | | | | has a constexpr destructor. For constexpr variables, reject if the variable does not have constant destruction. In all cases, do not emit runtime calls to the destructor for variables with constant destruction. llvm-svn: 373159
* [Docs] Adds sections for Command Line and LibFuzzer articlesDeForest Richards2019-09-291-11/+19
| | | | | | Adds sections for Command Line and Libfuzzer articles on Programming Documentation page. llvm-svn: 373158
* [X86] Enable isel to fold broadcast loads that have been bitcasted from FP ↵Craig Topper2019-09-292-10/+101
| | | | | | into a vpternlog. llvm-svn: 373157
* [X86] Move bitselect matching to vpternlog into X86ISelDAGToDAG.cppCraig Topper2019-09-2917-169/+286
| | | | | | | | | | | | This allows us to reduce the use count on the condition node before the match. This enables load folding for that operand without relying on the peephole pass. This will be improved on for broadcast load folding in a subsequent commit. This still requires a bunch of isel patterns for vXi16/vXi8 types though. llvm-svn: 373156
* [X86] Enable canonicalizeBitSelect for AVX512 since we can use VPTERNLOG now.Craig Topper2019-09-2918-236/+413
| | | | llvm-svn: 373155
* [X86] Match (or (and A, B), (andn (A, C))) to VPTERNLOG with AVX512.Craig Topper2019-09-296-127/+122
| | | | | | This uses a similar isel pattern as we used for vpcmov with XOP. llvm-svn: 373154
* [OpenMP] FreeBSD address check if mapped more nativeDavid Carlier2019-09-281-1/+42
| | | | | | | | | | | | | /proc unless Linux layer compatibility is activated for CentOS is activated is not present thus relying on a more native for checking the address. Reviewers: Hahnfeld, kongyl, jdoerfert, jlpeyton, AndreyChurbanov, emaster, dim Reviewed By: Hahnfeld Differential Revision: https://reviews.llvm.org/D67326 llvm-svn: 373152
* [NFC] Move hot cold splitting class to header fileAditya Kumar2019-09-282-31/+36
| | | | | | | | | | | | | | | | Summary: This is to facilitate unittests Reviewers: compnerd, vsk, tejohnson, sebpop, brzycki, SirishP Reviewed By: tejohnson Subscribers: llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D68079 llvm-svn: 373151
* SemaExpr - silence static analyzer getAs<> null dereference warnings. NFCI.Simon Pilgrim2019-09-281-30/+30
| | | | | | The static analyzer is warning about potential null dereferences, but in these cases we should be able to use castAs<> directly and if not assert will fire for us. llvm-svn: 373150
* [PowerPC] make tests immune to improved undef handlingSanjay Patel2019-09-282-9/+9
| | | | | | | | | The fma mutate test will not exercise what it was intended to test once we simplify those ops immediately, but the test will still pass with the existing CHECKs, so I'm leaving it in case that still has minimal value. llvm-svn: 373149
* Don't install example analyzer pluginsAaron Puchert2019-09-283-3/+3
| | | | | | | | | | | | Summary: Fixes PR43430. Reviewers: hintonda, NoQ, Szelethus, lebedev.ri Reviewed By: lebedev.ri Differential Revision: https://reviews.llvm.org/D68172 llvm-svn: 373148
* Driver tests: set `--sysroot=""` to support clang with `DEFAULT_SYSROOT`Serge Pavlov2019-09-285-21/+39
| | | | | | | | | | | | When testing clang that has been compiled with `-DDEFAULT_SYSROOT` set to some path, some tests would fail. Override sysroot to be empty string for the tests to succeed when clang is configured with `DEFAULT_SYSROOT`. Differential Revision: https://reviews.llvm.org/D66834 Patch by Sergej Jaskiewicz <jaskiewiczs@icloud.com>. llvm-svn: 373147
* Revert "[LLDB] Use the llvm microsoft demangler instead of the windows ↵Martin Storsjo2019-09-281-3/+41
| | | | | | | | | dbghelp api. NFC." This reverts SVN r373144, as it changed the demangled output a little, see http://lab.llvm.org:8011/builders/lldb-x64-windows-ninja/builds/9306. llvm-svn: 373146
* [LLD] [test] Add a forgotten comment. NFC.Martin Storsjo2019-09-281-0/+2
| | | | | | | This was requested in https://reviews.llvm.org/D68014, but I forgot to add it before pushing the commit. llvm-svn: 373145
* [LLDB] Use the llvm microsoft demangler instead of the windows dbghelp api. NFC.Martin Storsjo2019-09-281-41/+3
| | | | | | | | | If there's any testcases that only do demangling (I didn't find any), they could be made available for all platforms now. Differential Revision: https://reviews.llvm.org/D68134 llvm-svn: 373144
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