Project Ortega BCM5719 LLVM https://git.raptorcs.com/git/bcm5719-llvm/atom?h=meklort-10.0.1 2019-12-25T00:27:51+00:00 2019-12-25T00:27:51+00:00 Fangrui Song maskray@google.com 2019-12-25T00:11:33+00:00 urn:sha1:a36ddf0aa9db5c1086e04f56b5f077b761712eb5 2019-11-15T10:13:37+00:00 Mikael Holmen mikael.holmen@ericsson.com 2019-11-15T09:29:47+00:00 urn:sha1:1587c7e86f1c58e3f692f0a418e5df6aeb754bb0 Summary: When scalarizing PHI nodes we might try to examine/rewrite InsertElement nodes in predecessors. If those predecessors are unreachable from entry, then the IR in those blocks could have unexpected properties resulting in infinite loops in Scatterer::operator[]. By simply treating values originating from instructions in unreachable blocks as undef we do not need to analyse them further. This fixes PR41723. Reviewers: bjope Reviewed By: bjope Subscribers: bjope, hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D70171 2019-09-07T12:16:14+00:00 Bjorn Pettersson bjorn.a.pettersson@ericsson.com 2019-09-07T12:16:14+00:00 urn:sha1:5e331e4ce85ad37dca45739846c2a801f06ab573 Summary: Add an intrinsic that takes 2 unsigned integers with the scale of them provided as the third argument and performs fixed point multiplication on them. The result is saturated and clamped between the largest and smallest representable values of the first 2 operands. This is a part of implementing fixed point arithmetic in clang where some of the more complex operations will be implemented as intrinsics. Patch by: leonardchan, bjope Reviewers: RKSimon, craig.topper, bevinh, leonardchan, lebedev.ri, spatel Reviewed By: leonardchan Subscribers: ychen, wuzish, nemanjai, MaskRay, jsji, jdoerfert, Ka-Ka, hiraditya, rjmccall, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D57836 llvm-svn: 371308 2019-06-24T12:07:11+00:00 Bjorn Pettersson bjorn.a.pettersson@ericsson.com 2019-06-24T12:07:11+00:00 urn:sha1:512b1187794d33c75e4d88e8a4822aab375379c0 Summary: Handle smul.fix.sat in the scalarizer. This is done by adding smul.fix.sat to the set of "isTriviallyVectorizable" intrinsics. The addition of smul.fix.sat in isTriviallyVectorizable and hasVectorInstrinsicScalarOpd can also be seen as a preparation to be able to use hasVectorInstrinsicScalarOpd in ConstantFolding. Reviewers: rengolin, RKSimon, dblaikie Reviewed By: rengolin Subscribers: hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D63704 llvm-svn: 364177 2019-06-21T14:10:18+00:00 Jay Foad jay.foad@gmail.com 2019-06-21T14:10:18+00:00 urn:sha1:d9d3c91b48c6730c850a24580dab3fe3c1083ee1 Summary: The motivation for this was to propagate fast-math flags like nnan and ninf on vector floating point operations to the corresponding scalar operations to take advantage of follow-on optimizations. But I think the same argument applies to all of our IR flags: if they apply to the vector operation then they also apply to all the individual scalar operations, and they might enable follow-on optimizations. Subscribers: hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D63593 llvm-svn: 364051 2019-06-04T23:01:36+00:00 Cameron McInally cameron.mcinally@nyu.edu 2019-06-04T23:01:36+00:00 urn:sha1:5c7245b830eabfe85113707187f1da9bac1e17e5 Differential Revision: https://reviews.llvm.org/D62858 llvm-svn: 362558 2019-04-17T04:52:47+00:00 Eric Christopher echristo@gmail.com 2019-04-17T04:52:47+00:00 urn:sha1:cee313d288a4faf0355d76fb6e0e927e211d08a5 The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552 2019-04-17T02:12:23+00:00 Eric Christopher echristo@gmail.com 2019-04-17T02:12:23+00:00 urn:sha1:a86343512845c9c1fdbac865fea88aa5fce7142a As it's causing some bot failures (and per request from kbarton). This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda. llvm-svn: 358546 2018-12-20T04:58:07+00:00 Michael Kruse llvm@meinersbur.de 2018-12-20T04:58:07+00:00 urn:sha1:978ba61536c2cdafa8454b7330c5d8e58d0d5048 The current llvm.mem.parallel_loop_access metadata has a problem in that it uses LoopIDs. LoopID unfortunately is not loop identifier. It is neither unique (there's even a regression test assigning the some LoopID to multiple loops; can otherwise happen if passes such as LoopVersioning make copies of entire loops) nor persistent (every time a property is removed/added from a LoopID's MDNode, it will also receive a new LoopID; this happens e.g. when calling Loop::setLoopAlreadyUnrolled()). Since most loop transformation passes change the loop attributes (even if it just to mark that a loop should not be processed again as llvm.loop.isvectorized does, for the versioned and unversioned loop), the parallel access information is lost for any subsequent pass. This patch unlinks LoopIDs and parallel accesses. llvm.mem.parallel_loop_access metadata on instruction is replaced by llvm.access.group metadata. llvm.access.group points to a distinct MDNode with no operands (avoiding the problem to ever need to add/remove operands), called "access group". Alternatively, it can point to a list of access groups. The LoopID then has an attribute llvm.loop.parallel_accesses with all the access groups that are parallel (no dependencies carries by this loop). This intentionally avoid any kind of "ID". Loops that are clones/have their attributes modifies retain the llvm.loop.parallel_accesses attribute. Access instructions that a cloned point to the same access group. It is not necessary for each access to have it's own "ID" MDNode, but those memory access instructions with the same behavior can be grouped together. The behavior of llvm.mem.parallel_loop_access is not changed by this patch, but should be considered deprecated. Differential Revision: https://reviews.llvm.org/D52116 llvm-svn: 349725 2018-11-21T14:00:17+00:00 Mikael Holmen mikael.holmen@ericsson.com 2018-11-21T14:00:17+00:00 urn:sha1:b6f76002d9158628e78b315858694fd36c96d0e0 Patch by: markus (Markus Lavin) Reviewers: chandlerc, fedor.sergeev Reviewed By: fedor.sergeev Subscribers: llvm-commits, Ka-Ka, bjope Differential Revision: https://reviews.llvm.org/D54695 llvm-svn: 347392