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2017-12-01[SLPVectorizer] Failure to beneficially vectorize 'copyable' elements in ↵Dinar Temirbulatov
integer binary ops. Patch tries to improve vectorization of the following code: void add1(int * __restrict dst, const int * __restrict src) { *dst++ = *src++; *dst++ = *src++ + 1; *dst++ = *src++ + 2; *dst++ = *src++ + 3; } Allows to vectorize even if the very first operation is not a binary add, but just a load. Fixed issues related to previous commit. Reviewers: spatel, mzolotukhin, mkuper, hfinkel, RKSimon, filcab, ABataev Reviewed By: ABataev, RKSimon Subscribers: llvm-commits, RKSimon Differential Revision: https://reviews.llvm.org/D28907 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319531 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-01GlobalISel: Enable the legalization of G_MERGE_VALUES and G_UNMERGE_VALUESVolkan Keles
Summary: LegalizerInfo assumes all G_MERGE_VALUES and G_UNMERGE_VALUES instructions are legal, so it is not possible to legalize vector operations on illegal vector types. This patch fixes the problem by removing the related check and adding default actions for G_MERGE_VALUES and G_UNMERGE_VALUES. Reviewers: qcolombet, ab, dsanders, aditya_nandakumar, t.p.northover, kristof.beyls Reviewed By: dsanders Subscribers: rovka, javed.absar, igorb, llvm-commits Differential Revision: https://reviews.llvm.org/D39823 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319524 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-01Recommit rL319407: [SROA] enable splitting for non-whole-alloca loads and storesHiroshi Inoue
Recommiting once reverted patch rL319407 after adding a check for bit vector size to avoid failures in some build bots. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319522 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-01[X86] Custom legalize v2i32 gathers via widening rather than promoting.Craig Topper
The default legalization for v2i32 is promotion to v2i64. This results in a gather that reads 64-bit elements rather than 32. If one of the elements is near a page boundary this can cause an illegal access that can fault. We also miscalculate the scale for the gather which is an even worse problem, but we probably could have found a separate way to fix that. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319521 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-01[X86][SelectionDAG] Make sure we explicitly sign extend the index when type ↵Craig Topper
promoting the index of scatter and gather. Type promotion makes no guarantee about the contents of the promoted bits. Since the gather/scatter instruction will use the bits to calculate addresses, we need to ensure they aren't garbage. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319520 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-01[X86] Add another v2i32 gather test case with v2i64 index that wasn't sign ↵Craig Topper
extended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319519 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-01[X86] Add a DAG combine to simplify masks for AVX2 gather instructions.Craig Topper
AVX2 gathers only use the upper bit of the mask allowing us to simplify sign_extend_inreg to a shift left. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319514 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-01[WebAssembly] Update MC tests now that hidden attr is supportedSam Clegg
Summary: Support was added in rL319488 but these tests were not updated. Subscribers: jfb, dschuff, jgravelle-google, aheejin, sunfish Differential Revision: https://reviews.llvm.org/D40693 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319510 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-01Add flag to ArchiveWriter to test GNU64 format more efficientlyJake Ehrlich
Even with the sparse file optimizations the SYM64 test can still be painfully slow. This unnecessarily slows down devs. It's critical that we test that the switch to the SYM64 format occurs at 4GB but there isn't any better of a way to fake the size of the file than sparse files. This change introduces a flag that allows the cutoff to be arbitrarily set to whatever power of two is desired. The flag is hidden as it really isn't meant to be used outside this one test. This is unfortunate but appears necessary, at least until the average hard drive is much faster. The changes to the test require some explanation. Prior to this change we knew that the SYM64 format was being used because the file was simply too large to have validly handled this case if the SYM64 format were not used. To ensure that the SYM64 format is still being used I am grepping the file for "SYM64". Without changing the filename however this would be pointless because "SYM64" would occur in the file either way. So the filename of the test is also changed in order to avoid this issue. Differential Revision: https://reviews.llvm.org/D40632 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319507 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30AMDGPU: Use carry-less adds in FI eliminationMatt Arsenault
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319501 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30ThinLTOBitcodeWriter: Try harder to discard unused references to the merged ↵Peter Collingbourne
module. If the thin module has no references to an internal global in the merged module, we need to make sure to preserve that property if the global is a member of a comdat group, as otherwise promotion can end up adding global symbols to the comdat, which is not allowed. This situation can arise if the external global in the thin module has dead constant users, which would cause use_empty() to return false and would cause us to try to promote it. To prevent this from happening, discard the dead constant users before asking whether a global is empty. Differential Revision: https://reviews.llvm.org/D40593 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319494 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30AMDGPU: Use gfx9 carry-less add/sub instructionsMatt Arsenault
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319491 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30XOR the frame pointer with the stack cookie when protecting the stackReid Kleckner
Summary: This strengthens the guard and matches MSVC. Reviewers: hans, etienneb Subscribers: hiraditya, JDevlieghere, vlad.tsyrklevich, llvm-commits Differential Revision: https://reviews.llvm.org/D40622 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319490 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30Add visibility flag to Wasm symbol flagsSam Clegg
The LLVM "hidden" flag needs to be passed through the Wasm intermediate objects in order for the linker to apply it to the final Wasm object. The corresponding change in LLD is here: https://github.com/WebAssembly/lld/pull/14 Patch by Nicholas Wilson Differential Revision: https://reviews.llvm.org/D40442 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319488 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30[memcpyopt] Teach memcpyopt to optimize across basic blocksDan Gohman
This teaches memcpyopt to make a non-local memdep query when a local query indicates that the dependency is non-local. This notably allows it to eliminate many more llvm.memcpy calls in common Rust code, often by 20-30%. Fixes PR28958. Differential Revision: https://reviews.llvm.org/D38374 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319482 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30[Hexagon] Fix wrong check in test/CodeGen/Hexagon/newvaluejump-solo.mirKrzysztof Parzyszek
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319476 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30[Hexagon] Fix wrong pass in testcaseKrzysztof Parzyszek
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319471 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30[Hexagon] Solo instructions cannot be used with new value jumpsKrzysztof Parzyszek
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319470 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30[AMDGPU] Convert test/tools/llvm-objdump/AMDGPU/source-lines.ll to amdgizYaxun Liu
Differential Revision: https://reviews.llvm.org/D40653 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319469 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30[X86] Promote i8 CTPOP to i32 instead of i16 when we have the POPCNT ↵Craig Topper
instruction. The 32-bit version is shorter to encode and the zext we emit for the promotion is likely going to be a 32-bit zero extend anyway. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319468 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30[llvm-objcopy] Add support for --only-keep/-j and --keepJake Ehrlich
This change adds support for the --only-keep option and the -j alias as well. A common use case for these being used together is to dump a specific section's data. Additionally the --keep option is added (GNU objcopy doesn't have this) to avoid removing a bunch of things. This allows people to err on the side of stripping aggressively and then to keep the specific bits that they need for their application. Differential Revision: https://reviews.llvm.org/D39021 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319467 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30[aarch64][globalisel] Legalize G_ATOMIC_CMPXCHG_WITH_SUCCESS and G_ATOMICRMW_*Daniel Sanders
G_ATOMICRMW_* is generally legal on AArch64. The exception is G_ATOMICRMW_NAND. G_ATOMIC_CMPXCHG_WITH_SUCCESS needs to be lowered to G_ATOMIC_CMPXCHG with an external comparison. Note that IRTranslator doesn't generate these instructions yet. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319466 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30[GlobalISel][IRTranslator] Fix crash during translation of zero sized ↵Amara Emerson
loads/stores/args/returns. This fixes PR35358. rdar://35619533 Differential Revision: https://reviews.llvm.org/D40604 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319465 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30[PGO] Skip counter promotion for infinite loopsXinliang David Li
Differential Revision: http://reviews.llvm.org/D40662 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319462 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30[globalisel][tablegen] Add support for specific immediates in the match patternDaniel Sanders
This enables a few rules such as ARM's uxtb instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319457 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30[WebAssembly] Revert r319186 "Support bitcasted function addresses with ↵Dan Gohman
varargs." The patch broke Emscripten's EM_ASM macros, which utiltize unprototyped functions. See https://bugs.llvm.org/show_bug.cgi?id=35385 for details. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319452 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30[MIR] Fix DebugInfo tests after r319445Francis Visoiu Mistrih
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319447 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30[CodeGen] Always use `printReg` to print registers in both MIR and debugFrancis Visoiu Mistrih
output As part of the unification of the debug format and the MIR format, always use `printReg` to print all kinds of registers. Updated the tests using '_' instead of '%noreg' until we decide which one we want to be the default one. Differential Revision: https://reviews.llvm.org/D40421 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319445 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30[InstCombine] Additional test for PR35354, NFC.Alexey Bataev
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319436 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30[PowerPC] Recommit r314244 with refactoring and off by defaultNemanja Ivanovic
This re-commits everything that was pulled in r314244. The transformation is off by default (patch to enable it to follow). The code is refactored to have a single entry-point and provide fine-grained control over patterns that it selects. This patch also fixes the bugs in the original code. Everything that failed with the original patch has been re-tested with this patch (with the transformation turned on). So the patch to turn this on is soon to follow. Differential Revision: https://reviews.llvm.org/D38575 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319434 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30[X86][AVX512] Tag fcmp/ptest/ternlog instructions scheduler classesSimon Pilgrim
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319433 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30[X86][AVX512] Regenerate avx512 schedule testsSimon Pilgrim
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319432 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30[MC] Function stack size section.Sean Eveson
Re applying after fixing issues in the diff, sorry for any painful conflicts/merges! Original RFC: http://lists.llvm.org/pipermail/llvm-dev/2017-August/117028.html This change adds a '.stack-size' section containing metadata on function stack sizes to output ELF files behind the new -stack-size-section flag. The section contains pairs of function symbol references (8 byte) and stack sizes (unsigned LEB128). The contents of this section can be used to measure changes to stack sizes between different versions of the compiler or a source base. The advantage of having a section is that we can extract this information when examining binaries that we didn't build, and it allows users and tools easy access to that information just by referencing the binary. There is a follow up change to add an option to clang. Thanks. Reviewers: hfinkel, MatzeB Reviewed By: MatzeB Subscribers: thegameg, asb, llvm-commits Differential Revision: https://reviews.llvm.org/D39788 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319430 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30Revert r319423: [MC] Function stack size section.Sean Eveson
I messed up the diff. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319429 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30[ARM GlobalISel] Bail out for byvalDiana Picus
Fallback if we have a byval parameter or argument since we don't support them yet. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319428 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30[CodeGen] Print "%vreg0" as "%0" in both MIR and debug outputFrancis Visoiu Mistrih
As part of the unification of the debug format and the MIR format, avoid printing "vreg" for virtual registers (which is one of the current MIR possibilities). Basically: * find . \( -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E "s/%vreg([0-9]+)/%\1/g" * grep -nr '%vreg' . and fix if needed * find . \( -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E "s/ vreg([0-9]+)/ %\1/g" * grep -nr 'vreg[0-9]\+' . and fix if needed Differential Revision: https://reviews.llvm.org/D40420 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319427 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30[MC] Function stack size section.Sean Eveson
Summary: Original RFC: http://lists.llvm.org/pipermail/llvm-dev/2017-August/117028.html I wasn't sure who to put as reviewers, so please add/remove people as appropriate. This change adds a '.stack-size' section containing metadata on function stack sizes to output ELF files behind the new -stack-size-section flag. The section contains pairs of function symbol references (8 byte) and stack sizes (unsigned LEB128). The contents of this section can be used to measure changes to stack sizes between different versions of the compiler or a source base. The advantage of having a section is that we can extract this information when examining binaries that we didn't build, and it allows users and tools easy access to that information just by referencing the binary. There is a follow up change to add an option to clang. Thanks. Reviewers: hfinkel, MatzeB Reviewed By: MatzeB Subscribers: thegameg, asb, llvm-commits Differential Revision: https://reviews.llvm.org/D39788 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319423 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30Support generic lowering of vector bswapSerge Guelton
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319419 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30[X86][AVX512] Tag RCP/RSQRT/GETEXP instructions scheduler classesSimon Pilgrim
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319418 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30[dsymutil] Upstream getBundleInfo implementationJonas Devlieghere
This patch implements `getBundleInfo`, which uses CoreFoundation to obtain information about the CFBundle. This information is needed to populate the Plist in the dSYM bundle. This change only applies to darwin and is an NFC as far as other platforms are concerned. Differential revision: https://reviews.llvm.org/D40244 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319416 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30Revert rL319407: [SROA] enable splitting for non-whole-alloca loads and stores Hiroshi Inoue
This reverts commit rL319407 due to failures in some buildbot. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319410 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30[SystemZ] Bugfix in adjustSubwordCmp.Jonas Paulsson
Csmith generated a program where a store after load to the same address did not get chained after the new load created during DAG legalizing, and so performed an illegal overwrite of the expected value. When the new zero-extending load is created, the chain users of the original load must be updated, which was not done previously. A similar case was also found and handled in lowerBITCAST. Review: Ulrich Weigand https://reviews.llvm.org/D40542 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319409 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30[SROA] enable splitting for non-whole-alloca loads and storesHiroshi Inoue
Currently, SROA splits loads and stores only when they are accessing the whole alloca. This patch relaxes this limitation to allow splitting a load/store if all other loads and stores to the alloca are disjoint to or fully included in the current load/store. If there is no other load or store that crosses the boundary of the current load/store, the current splitting implementation works as is. The whole-alloca loads and stores meet this new condition and so they are still splittable. Here is a simplified motivating example. struct record { long long a; int b; int c; }; int func(struct record r) { for (int i = 0; i < r.c; i++) r.b++; return r.b; } When updating r.b (or r.c as well), LLVM generates redundant instructions on some platforms (such as x86_64, ppc64); here, r.b and r.c are packed into one 64-bit GPR when the struct is passed as a method argument. With this patch, the above example is compiled into only few instructions without loop. Without the patch, unnecessary loop-carried dependency is introduced by SROA and the loop cannot be eliminated by the later optimizers. Differential Revision: https://reviews.llvm.org/D32998 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319407 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30[X86] Optimize avx2 vgatherqps for v2f32 with v2i64 index type.Craig Topper
Normal type legalization will widen everything. This requires forcing 0s into the mask register. We can instead choose the form that only reads 2 elements without zeroing the mask. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319406 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30[X86] Make sure we don't remove sign extends of masks with AVX2 masked gathers.Craig Topper
We don't use k-registers and instead use the MSB so we need to make sure we sign extend the mask to the msb. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319405 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30- Removed unused lamba (IsReturnBlock) causing build bots to fail for r319398Graham Yiu
- Added lit testcases that were supposed to be part of r319398 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319399 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30AMDGPU: Allow negative MUBUF vaddr for gfx9Matt Arsenault
GFX9 does not enable bounds checking for the resource descriptors used for private access, so it should be OK to use vaddr with a potentially negative value. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319393 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30Check alignment in getSectionContentsAsArray.Rafael Espindola
While the ArrayRef can technically have unaligned data, it would be extremely surprising if iterating over it caused undefined behavior when a reference to the underlying type was bound. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319392 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30[Coverage] Use the most-recent completed region count (PR35437)Vedant Kumar
This is a fix for the coverage segment builder. If multiple regions must be popped off the active stack at once, and more than one of them end at the same location, emit a segment using the count from the most-recent completed region. Fixes PR35437, rdar://35760630 Testing: invoked llvm-cov on a stage2 build of clang, additional unit tests, check-profile git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319391 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-29First step towards more human-friendly PPC assembler output:Joerg Sonnenberger
- add -ppc-reg-with-percent-prefix option to use %r3 etc as register names - split off logic for Darwinish verbose conditional codes into a helper function - be explicit about Darwin vs AIX vs GNUish assembler flavors Based on the patch from Alexandre Yukio Yamashita Differential Revision: https://reviews.llvm.org/D39016 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319381 91177308-0d34-0410-b5e6-96231b3b80d8
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