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* [X86] Add commutable floating point max/min instructions to the load folding ↵Craig Topper2016-08-071-0/+20
| | | | | | tables. llvm-svn: 277949
* [X86] Simplify a shuffle mask copy. NFCCraig Topper2016-08-071-4/+2
| | | | llvm-svn: 277947
* Revert "Revert "[LoopSimplify] Fix updating LCSSA after separating nested ↵Michael Zolotukhin2016-08-071-0/+15
| | | | | | | | | loops."" This reverts commit r277901. Reaaply the commit as it looks like it has nothing to do with the bots failures. llvm-svn: 277946
* [ExecutionEngine][RuntimeDyld] Move JITSymbol from ExecutionEngine to ↵Lang Hames2016-08-073-1/+1
| | | | | | | | | RuntimeDyld. JITSymbol really belongs in RuntimeDyld. This should fix the llvm-rtdyld link failures caused by r277943. llvm-svn: 277945
* [RuntimeDyld] Remove symbol that is unused as of r277943.Lang Hames2016-08-071-1/+0
| | | | llvm-svn: 277944
* [RuntimeDyld] Replace manual flag checks with JITSymbolFlags::fromObjectSymbol.Lang Hames2016-08-071-13/+5
| | | | llvm-svn: 277943
* [ORC] Re-apply r277896, removing bogus triples and datalayouts that broke testsLang Hames2016-08-061-1/+1
| | | | | | on linux last time. llvm-svn: 277942
* [libFuzzer] make libFuzzer work with a bit older clang versionsKostya Serebryany2016-08-061-8/+10
| | | | llvm-svn: 277941
* [libFuzzer] don't print bogus error messageKostya Serebryany2016-08-061-2/+3
| | | | llvm-svn: 277940
* [X86][AVX2] Improve sign/zero extension on AVX2 targetsSimon Pilgrim2016-08-061-7/+15
| | | | | | Split extensions to large vectors into 256-bit chunks - the equivalent of what we do with pre-AVX2 into 128-bit chunks llvm-svn: 277939
* CoroSplit: Squash unused variable FnTrigger warning in NDEBUGGor Nishanov2016-08-061-0/+2
| | | | llvm-svn: 277938
* [Coroutines] Part 5: Add CGSCC restart triggerGor Nishanov2016-08-065-8/+154
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: CoroSplit pass processes the coroutine twice. First, it lets it go through complete IPO optimization pipeline as a single function. It forces restart of the pipeline by inserting an indirect call to an empty function "coro.devirt.trigger" which is devirtualized by CoroElide pass that triggers a restart of the pipeline by CGPassManager. (In later patches, when CoroSplit pass sees the same coroutine the second time, it splits it up, adds coroutine subfunctions to the SCC to be processed by IPO pipeline.) Documentation and overview is here: http://llvm.org/docs/Coroutines.html. Upstreaming sequence (rough plan) 1.Add documentation. (https://reviews.llvm.org/D22603) 2.Add coroutine intrinsics. (https://reviews.llvm.org/D22659) 3.Add empty coroutine passes. (https://reviews.llvm.org/D22847) 4.Add coroutine devirtualization + tests. ab) Lower coro.resume and coro.destroy (https://reviews.llvm.org/D22998) c) Do devirtualization (https://reviews.llvm.org/D23229) 5.Add CGSCC restart trigger + tests. <= we are here 6.Add coroutine heap elision + tests. 7.Add the rest of the logic (split into more patches) Reviewers: mehdi_amini, majnemer Subscribers: llvm-commits, mehdi_amini Differential Revision: https://reviews.llvm.org/D23234 llvm-svn: 277936
* [AVX-512] Add SQRT/RCP14/RNDSCALE to hasUndefRegUpdate.Craig Topper2016-08-061-0/+16
| | | | llvm-svn: 277934
* [AVX-512] Add AVX-512 scalar CVT instructions to hasUndefRegUpdate.Craig Topper2016-08-061-1/+25
| | | | llvm-svn: 277933
* [X86] Add VRCPSSr_Int, VRSQRTSSr_Int, VSQRTSSr_Int, and VSQRTSDr_Int to ↵Craig Topper2016-08-061-0/+4
| | | | | | hasUndefRegUpdate. llvm-svn: 277931
* [X86][SSE] Enable commutation between MOVHLPS and UNPCKHPDSimon Pilgrim2016-08-062-2/+20
| | | | | | | | Assuming SSE2 is available then we can safely commute between these, removing some unnecessary register moves and improving memory folding opportunities. VEX encoded versions don't benefit so I haven't added support to them. llvm-svn: 277930
* [libfuzzer] do not warn about missing pcbuffer functions: they are new.Mike Aizatsky2016-08-061-2/+2
| | | | llvm-svn: 277927
* [ARM] Don't copy MCInsts in loop. NFC.Benjamin Kramer2016-08-061-1/+1
| | | | llvm-svn: 277924
* [Inliner] Use function_ref for functors which are never taken ownership of.Benjamin Kramer2016-08-061-5/+5
| | | | llvm-svn: 277922
* [LoadCombine] Simplify code with a brace init. NFC.Benjamin Kramer2016-08-061-4/+1
| | | | llvm-svn: 277921
* [X86][SSE] Add 2 input shuffle support to matchBinaryVectorShuffle Simon Pilgrim2016-08-061-12/+20
| | | | | | Not actually used yet... llvm-svn: 277919
* Move helpers into anonymous namespaces. NFC.Benjamin Kramer2016-08-0615-24/+32
| | | | llvm-svn: 277916
* [CodeGen] Fix a -Wdocumentation warningDavid Majnemer2016-08-061-1/+1
| | | | | | | A parameter was documented with the wrong name. No functionality change is intended. llvm-svn: 277915
* [ValueTracking] Teach computeKnownBits about [su]min/maxDavid Majnemer2016-08-061-1/+50
| | | | | | | Reasoning about a select in terms of a min or max allows us to derive a tigher bound on the result. llvm-svn: 277914
* [CallGraphSCCPass] Use an ArrayRef instead of a pair of iteratorsDavid Majnemer2016-08-061-1/+1
| | | | | | No functional change is intended. llvm-svn: 277913
* [InstCombine] Don't coerce non-integral pointers to integersSanjoy Das2016-08-061-1/+2
| | | | | | | | | | Reviewers: majnemer Subscribers: mcrosier, llvm-commits Differential Revision: https://reviews.llvm.org/D23231 llvm-svn: 277910
* Revert "(refs/bisect/bad) GVN-hoist: enable by default"Matthias Braun2016-08-061-2/+2
| | | | | | | | | | | GVN-Hoist appears to miscompile llvm-testsuite SingleSource/Benchmarks/Misc/fbench.c at the moment. I filed http://llvm.org/PR28880 This reverts commit r277786. llvm-svn: 277909
* Part 4c: Coroutine Devirtualization: Devirtualize coro.resume and coro.destroy.Gor Nishanov2016-08-066-35/+175
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: This is the 4c patch of the coroutine series. CoroElide pass now checks if PostSplit coro.begin is referenced by coro.subfn.addr intrinsics. If so replace coro.subfn.addrs with an appropriate coroutine subfunction associated with that coro.begin. Documentation and overview is here: http://llvm.org/docs/Coroutines.html. Upstreaming sequence (rough plan) 1.Add documentation. (https://reviews.llvm.org/D22603) 2.Add coroutine intrinsics. (https://reviews.llvm.org/D22659) 3.Add empty coroutine passes. (https://reviews.llvm.org/D22847) 4.Add coroutine devirtualization + tests. ab) Lower coro.resume and coro.destroy (https://reviews.llvm.org/D22998) c) Do devirtualization <= we are here 5.Add CGSCC restart trigger + tests. 6.Add coroutine heap elision + tests. 7.Add the rest of the logic (split into more patches) Reviewers: majnemer Subscribers: mehdi_amini, llvm-commits Differential Revision: https://reviews.llvm.org/D23229 llvm-svn: 277908
* Revert r277896.Nico Weber2016-08-061-1/+1
| | | | | | | | | | | | | | | | It breaks ExecutionEngine/OrcLazy/weak-function.ll on most bots. Script: -- ... -- Exit Code: 1 Command Output (stderr): -- Could not find main function. llvm-svn: 277907
* CodeGen: If Convert blocks that would form a diamond when tail-merged.Kyle Butt2016-08-061-66/+345
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The following function currently relies on tail-merging for if conversion to succeed. The common tail of cond_true and cond_false is extracted, and this then forms a diamond pattern that can be successfully if converted. If this block does not get extracted, either because tail-merging is disabled or the threshold is higher, we should still recognize this pattern and if-convert it. define i32 @t2(i32 %a, i32 %b) nounwind { entry: %tmp1434 = icmp eq i32 %a, %b ; <i1> [#uses=1] br i1 %tmp1434, label %bb17, label %bb.outer bb.outer: ; preds = %cond_false, %entry %b_addr.021.0.ph = phi i32 [ %b, %entry ], [ %tmp10, %cond_false ] %a_addr.026.0.ph = phi i32 [ %a, %entry ], [ %a_addr.026.0, %cond_false ] br label %bb bb: ; preds = %cond_true, %bb.outer %indvar = phi i32 [ 0, %bb.outer ], [ %indvar.next, %cond_true ] %tmp. = sub i32 0, %b_addr.021.0.ph %tmp.40 = mul i32 %indvar, %tmp. %a_addr.026.0 = add i32 %tmp.40, %a_addr.026.0.ph %tmp3 = icmp sgt i32 %a_addr.026.0, %b_addr.021.0.ph br i1 %tmp3, label %cond_true, label %cond_false cond_true: ; preds = %bb %tmp7 = sub i32 %a_addr.026.0, %b_addr.021.0.ph %tmp1437 = icmp eq i32 %tmp7, %b_addr.021.0.ph %indvar.next = add i32 %indvar, 1 br i1 %tmp1437, label %bb17, label %bb cond_false: ; preds = %bb %tmp10 = sub i32 %b_addr.021.0.ph, %a_addr.026.0 %tmp14 = icmp eq i32 %a_addr.026.0, %tmp10 br i1 %tmp14, label %bb17, label %bb.outer bb17: ; preds = %cond_false, %cond_true, %entry %a_addr.026.1 = phi i32 [ %a, %entry ], [ %tmp7, %cond_true ], [ %a_addr.026.0, %cond_false ] ret i32 %a_addr.026.1 } Without tail-merging or diamond-tail if conversion: LBB1_1: @ %bb @ =>This Inner Loop Header: Depth=1 cmp r0, r1 ble LBB1_3 @ BB#2: @ %cond_true @ in Loop: Header=BB1_1 Depth=1 subs r0, r0, r1 cmp r1, r0 it ne cmpne r0, r1 bgt LBB1_4 LBB1_3: @ %cond_false @ in Loop: Header=BB1_1 Depth=1 subs r1, r1, r0 cmp r1, r0 bne LBB1_1 LBB1_4: @ %bb17 bx lr With diamond-tail if conversion, but without tail-merging: @ BB#0: @ %entry cmp r0, r1 it eq bxeq lr LBB1_1: @ %bb @ =>This Inner Loop Header: Depth=1 cmp r0, r1 ite le suble r1, r1, r0 subgt r0, r0, r1 cmp r1, r0 bne LBB1_1 @ BB#2: @ %bb17 bx lr llvm-svn: 277905
* IfConverter: Split ScanInstructions into 2 functions.Kyle Butt2016-08-061-13/+27
| | | | | | | | | | ScanInstructions is now 2 functions: AnalyzeBranches and ScanInstructions. ScanInstructions also now takes a pair of arguments delimiting the instructions to be scanned. This will be used for forked diamond support to re-scan only a portion of the block. llvm-svn: 277904
* IfConversion: Document countDuplicatedInstructions. NFCKyle Butt2016-08-061-0/+12
| | | | llvm-svn: 277903
* IfConversion: factor out 2 functions to skip debug instrs. NFCKyle Butt2016-08-061-24/+32
| | | | | | Skipping debug instructions occurrs repeatedly, factor it out. llvm-svn: 277902
* Revert "[LoopSimplify] Fix updating LCSSA after separating nested loops."Michael Zolotukhin2016-08-061-15/+0
| | | | | | | This reverts commit r277877. Try to appease clang-x64-ninja-win7 buildbot. llvm-svn: 277901
* [ORC] Add (partial) weak symbol support to the CompileOnDemand layer.Lang Hames2016-08-061-1/+1
| | | | | | | | | | | | | | This adds partial support for weak functions to the CompileOnDemandLayer by modifying the addLogicalModule method to check for existing stub definitions before building a new stub for a weak function. This scheme is sufficient to support ODR definitions, but fails for general weak definitions if strong definition is encountered after the first weak definition. (A more extensive refactor will be required to fully support weak symbols). This patch does *not* add weak symbol support to RuntimeDyld: I hope to add that in the near future. llvm-svn: 277896
* [IRCE] Remove unused headers; NFCSanjoy Das2016-08-061-7/+0
| | | | llvm-svn: 277892
* [IRCE] Preserve loop-simplify formSanjoy Das2016-08-061-0/+2
| | | | | | | | Fixes PR28764. Right now there is no way to test this, but (as mentioned on the PR) with Michael Zolotukhin's yet to be checked in LoopSimplify verfier, 8 of the llvm-lit tests for IRCE crash. llvm-svn: 277891
* [InstCombine] refactor ctlz/cttz folds (NFCI)Sanjay Patel2016-08-051-34/+33
| | | | | | | | | | Note that this fold really belongs in InstSimplify. Refactoring here anyway as an intermediate step because there's a planned addition to this function in D23134. Differential Revision: https://reviews.llvm.org/D23223 llvm-svn: 277883
* [MSSA] Use depth first iterator instead of custom version.Daniel Berlin2016-08-051-19/+3
| | | | | | | | | | | | | | | | | Summary: Originally the plan was to use the custom worklist to do some block popping, and because we don't actually need a visited set. The custom one we have here is slightly broken, and it's not worth fixing vs using depth_first_iterator since we aren't going to go the route we originally were. Fixes PR28874 Reviewers: george.burgess.iv Subscribers: llvm-commits, gberry Differential Revision: https://reviews.llvm.org/D23187 llvm-svn: 277880
* CodeView: Remove an unused variableJustin Bogner2016-08-051-1/+0
| | | | | | It was breaking the -Werror build. llvm-svn: 277878
* [LoopSimplify] Fix updating LCSSA after separating nested loops.Michael Zolotukhin2016-08-051-0/+15
| | | | | | | | | This fixes PR28825. The problem was that we only checked if a value from a created inner loop is used in the outer loop, and fixed LCSSA for them. But we missed to fixup LCSSA for values used in exits of the outer loop. llvm-svn: 277877
* Fix non portable include path.Zachary Turner2016-08-051-1/+1
| | | | llvm-svn: 277876
* [MSSA] Match assert vs llvm_unreachable style in verification functions.Daniel Berlin2016-08-051-11/+12
| | | | llvm-svn: 277873
* Rewrite domination verifier to handle local domination as well.Daniel Berlin2016-08-051-38/+19
| | | | | | | | | | | | | | Summary: Rewrite domination verifier to handle local domination as well. This catches a bug Geoff Berry noticed. Reviewers: george.burgess.iv Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D23184 llvm-svn: 277872
* [CodeView] Decouple record deserialization from visitor dispatch.Zachary Turner2016-08-0512-207/+299
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Until now, our use case for the visitor has been to take a stream of bytes representing a type stream, deserialize the records in sequence, and do something with them, where "something" is determined by how the user implements a particular set of callbacks on an abstract class. For actually writing PDBs, however, we want to do the reverse. We have some kind of description of the list of records in their in-memory format, and we want to process each one. Perhaps by serializing them to a byte stream, or perhaps by converting them from one description format (Yaml) to another (in-memory representation). This was difficult in the current model because deserialization and invoking the callbacks were tightly coupled. With this patch we change this so that TypeDeserializer is itself an implementation of the particular set of callbacks. This decouples deserialization from the iteration over a list of records and invocation of the callbacks. TypeDeserializer is initialized with another implementation of the callback interface, so that upon deserialization it can pass the deserialized record through to the next set of callbacks. In a sense this is like an implementation of the Decorator design pattern, where the Deserializer is a decorator. This will be useful for writing Pdbs from yaml, where we have a description of the type records in Yaml format. In this case, the visitor implementation would have each visitation callback method implemented in such a way as to extract the proper set of fields from the Yaml, and it could maintain state that builds up a list of these records. Finally at the end we can pass this information through to another set of callbacks which serializes them into a byte stream. Reviewed By: majnemer, ruiu, rnk Differential Revision: https://reviews.llvm.org/D23177 llvm-svn: 277871
* AMDGPU/SI: Increase SGPR limit to 96 on Tonga/IcelandMarek Olsak2016-08-051-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | Summary: This is the setting of the Vulkan closed source driver. It decreases the max wave count from 10 to 8. 26010 shaders in 14650 tests Totals: VGPRS: 829593 -> 808440 (-2.55 %) Spilled SGPRs: 81878 -> 42226 (-48.43 %) Spilled VGPRs: 367 -> 358 (-2.45 %) Scratch VGPRs: 1764 -> 1748 (-0.91 %) dwords per thread Code Size: 36677864 -> 35923932 (-2.06 %) bytes There is a massive decrease in SGPR spilling in general and -7.4% spilled VGPRs for DiRT Showdown (= SGPRs spilled to scratch?) Reviewers: arsenm, tstellarAMD, nhaehnle Subscribers: arsenm, llvm-commits, kzhuravl Differential Revision: https://reviews.llvm.org/D23034 llvm-svn: 277867
* [ARM] Constant Materialize: imms with specific value can be encoded into mov.wWeiming Zhao2016-08-051-1/+3
| | | | | | | | | | | | | | | | | | Summary: Thumb2 supports encoding immediates with specific patterns into mov.w by splatting the low 8 bits into other bytes. I'm resubmitting this patch. The test case in the original commit r277610 does not specify triple, so builds with differnt default triple will have different output. This patch fixed trile as thumb-darwin-apple. Reviewers: john.brawn, jmolloy, bruno Subscribers: jmolloy, aemerson, rengolin, samparker, llvm-commits Differential Revision: https://reviews.llvm.org/D23090 llvm-svn: 277865
* [FlattenCFG] Simplify + remove unused variable. NFCI.Davide Italiano2016-08-051-7/+2
| | | | llvm-svn: 277864
* Remove cold callsite heuristic that is not necessary because of cold callee ↵Dehao Chen2016-08-051-7/+5
| | | | | | heuristic. llvm-svn: 277863
* Replace hot-callsite based heuristic to use its own threshold parameter ↵Dehao Chen2016-08-051-6/+17
| | | | | | | | | | | | | | instead of share inline-hint parameter Summary: Hot callsites should have higher threshold than inline hints. This patch uses separate threshold parameter for hot callsites. Reviewers: davidxl, eraman Subscribers: Prazek, llvm-commits Differential Revision: https://reviews.llvm.org/D22368 llvm-svn: 277860
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