- 23 Aug, 2019 10 commits
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Thibaud Michaud authored
Out of memory should be the only reason for {FinalizeCode} to return an empty handle in wasm heap stub compilation. Crash accordingly. R=mstarzinger@chromium.org Bug: chromium:990223 Change-Id: I996721c69bfe600a7c13937a65c93d0b19b91c45 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1768578Reviewed-by:Michael Starzinger <mstarzinger@chromium.org> Commit-Queue: Thibaud Michaud <thibaudm@chromium.org> Cr-Commit-Position: refs/heads/master@{#63366}
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Dan Elphick authored
This changes Compiler::CollectSourcePositions to skip finalization of the BytecodeArray, constant table, handler table, ScopeInfos as well as internalization of Ast values since only the source position table is used and the others will be collected soon after by the GC. It will also now avoid recompiling inner functions that would otherwise be eagerly compiled. BytecodeArrayWriter::ToBytecodeArray has been changed to never populate the source_position_table. Bug: v8:8510 Change-Id: I2db2f2da6b48fde11f17a20d017c1a54c0a34fc2 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1763538 Commit-Queue: Dan Elphick <delphick@chromium.org> Reviewed-by:
Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#63365}
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Georg Neis authored
While we only need to check stability of the receiver map if its inference was "unreliable", we must check stability of each prototype's map unconditionally. Bug: chromium:997100 Change-Id: I20071ac9eb74c810ad2ab1d78abfb54a1a006c29 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1768576 Commit-Queue: Maya Lekova <mslekova@chromium.org> Auto-Submit: Georg Neis <neis@chromium.org> Reviewed-by:
Maya Lekova <mslekova@chromium.org> Cr-Commit-Position: refs/heads/master@{#63364}
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Dominik Inführ authored
Do not clear old-to-new slots for the new FixedArray's map and length word on left trim because these fields are tagged. Bug: v8:9454 Change-Id: I9947a93f80efc6669498ed4c0171d728aebc782b Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1767997 Commit-Queue: Dominik Inführ <dinfuehr@chromium.org> Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#63363}
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Michael Lippautz authored
Avoid clearing the memory on the embedder-side of a TracedGlobal handle. When using destructors in TracedGlobal this is safe as long as the embedder reports the handle on tracing GCs. If the embedder does not report a handle it is assumed that the containing object is dead as well. Without using destructors the same argument holds for tracing GCs. In addition, embedders using the optimization of clearing references on non-tracing GCs are expected to clear the reference in ResetHandleInNonTracingGC. It is suggested that only expert embedders make use of (a) no destructors and (b) IsRootForNonTracingGC. Change-Id: Ia417c0eb0860094fcaa554e7046d38abac905714 Bug: chromium:995684 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1763539 Commit-Queue: Michael Lippautz <mlippautz@chromium.org> Reviewed-by:
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Jakob Kummerow authored
Change-Id: Iadc6fa94ac2b77a8a8b0f1dbf3c28fc97ff13930 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1765608Reviewed-by:
Andreas Haas <ahaas@chromium.org> Commit-Queue: Jakob Kummerow <jkummerow@chromium.org> Cr-Commit-Position: refs/heads/master@{#63361}
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Ana Peško authored
is enabled. Change-Id: Iab87b9c7a0d0600782b02537844338ff065622ab Bug: chromium:996234 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1765531Reviewed-by:
Peter Marshall <petermarshall@chromium.org> Reviewed-by:
Yang Guo <yangguo@chromium.org> Commit-Queue: Ana Pesko <anapesko@google.com> Cr-Commit-Position: refs/heads/master@{#63360}
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Dominik Inführ authored
Get rid of deletion entries in the store buffer. Clearing a slot now first empties the store buffer and then directly deletes the slot from the remembered set. Bug: v8:9454 Change-Id: I656db593a0478db3fa63324d7f3c6862b4b5e776 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1766130Reviewed-by:
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Yang Guo authored
This reverts commit 0bd19ddb. TBR=szuend@chromium.org Change-Id: I86bc9409cb809ff978a1104be79bbbe4b87f85e5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1767996Reviewed-by:
Simon Zünd <szuend@chromium.org> Commit-Queue: Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#63358}
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v8-ci-autoroll-builder authored
Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/127a048..8528a36 Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/7f90416..940c282 TBR=machenbach@chromium.org,tmrts@chromium.org Change-Id: I96542c62d864df98232070366d7db0948295c944 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1767223Reviewed-by:
v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com> Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com> Cr-Commit-Position: refs/heads/master@{#63357}
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- 22 Aug, 2019 30 commits
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Jakob Gruber authored
This is a reland of 1e472c42 No change, this was a speculative revert to unblock the roll. TBR=jgruber Original change's description: > [compiler] Track the maximal unoptimized frame size > > This is another step towards considering the unoptimized frame size in > stack checks within optimized code. > > With the changes in this CL, we now keep track of the maximal > unoptimized frame size of the function that is currently being > compiled. An optimized function may inline multiple unoptimized > functions, so a single optimized frame can deopt to multiple > frames. The real frame size thus differs in different parts of the > optimized function. > > We only care about the maximal frame size, which we calculate > conservatively as an over-approximation, and track in > InstructionSelector::max_unoptimized_frame_height_ for now. In future > work, this value will be passed on to codegen, where it will be > applied as an offset to the stack pointer during the stack check. > > (The motivation behind this is to avoid stack overflows through deopts, > caused by size differences between optimized and unoptimized frames.) > > Note that this offset only ensure that the topmost optimized frame can > deopt without overflowing the stack limit. That's fine, because we only > deopt optimized frames one at a time. Other (non-topmost) frames are > only deoptimized once they are returned to. > > Drive-by: Print variable and total frame height in --trace-deopt. > > Bug: v8:9534 > Change-Id: I821684a9da93bff59c20c8ab226105e7e12d93eb > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1762024 > Commit-Queue: Jakob Gruber <jgruber@chromium.org> > Auto-Submit: Jakob Gruber <jgruber@chromium.org> > Reviewed-by: Sigurd Schneider <sigurds@chromium.org> > Reviewed-by: Georg Neis <neis@chromium.org> > Cr-Commit-Position: refs/heads/master@{#63330} Bug: v8:9534 Change-Id: I686f200e7be1f419e23e50789e11607a0b2886d9 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1766645 Commit-Queue: Bill Budge <bbudge@chromium.org> Reviewed-by:
Bill Budge <bbudge@chromium.org> Cr-Commit-Position: refs/heads/master@{#63356}
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v8-ci-autoroll-builder authored
Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/f4bb5e7..127a048 Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/679dc37..2662d14 Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/4c55b35..7f90416 Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/ebf97a6..656fd11 TBR=machenbach@chromium.org,tmrts@chromium.org Change-Id: I87815c4b3e4122a66b431805295e0e4ecfbcdd6c Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1766054Reviewed-by:
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Ng Zhi An authored
Bug: v8:8460 Change-Id: I16df8eee6146704e26c6e784452ad8dc4621a460 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1749711Reviewed-by:
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Bill Budge authored
This reverts commit 8ee507f1. Reason for revert: Speculative, to unblock the V8 roller https://ci.chromium.org/p/chromium/builders/try/linux-rel/173637 Original change's description: > [ic] Inline constant fields in IC > > Previously, the handler would load the constant field from the holder > everytime by using the descriptor index. Instead, this patch inlines > the constant field directly into the handler. > > Change-Id: Ia731811b135897033f4c5dc973031a30f25a64ed > Bug: v8:9616 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1688829 > Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Cr-Commit-Position: refs/heads/master@{#63332} TBR=gsathya@chromium.org,ishell@chromium.org,verwaest@chromium.org Change-Id: I36c5648c56f1d78447b7a45504cdebf593c020a1 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:9616 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1766148Reviewed-by:
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Seth Brenith authored
This change adds the indexed field for the characters in the definition of sequential string types, and introduces support for recognizing the various specific string types in v8_debug_helper. In an attempt to avoid duplicating info about string instance types, it also refactors String::Get so that StringShape (a simple class usable by postmortem tools) can dispatch using a class that defines behaviors for each concrete type. Bug: v8:9376 Change-Id: Id0653040f6decddc004c73f8fe93d2187828c2c6 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1735795 Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> Reviewed-by:
Michael Stanton <mvstanton@chromium.org> Cr-Commit-Position: refs/heads/master@{#63352}
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v8-ci-autoroll-builder authored
Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/abb522f..f4bb5e7 Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/bfcde3c..4c55b35 TBR=machenbach@chromium.org,tmrts@chromium.org Change-Id: Iaf903551f6942cd4b2d30fb80601eae7d04b91b5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1765461Reviewed-by:
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Bill Budge authored
This reverts commit 1e472c42. Reason for revert: Speculative revert, to attempt to fix crashes that block the V8 roll. Example failure run: https://ci.chromium.org/p/chromium/builders/try/linux-rel/173465 Original change's description: > [compiler] Track the maximal unoptimized frame size > > This is another step towards considering the unoptimized frame size in > stack checks within optimized code. > > With the changes in this CL, we now keep track of the maximal > unoptimized frame size of the function that is currently being > compiled. An optimized function may inline multiple unoptimized > functions, so a single optimized frame can deopt to multiple > frames. The real frame size thus differs in different parts of the > optimized function. > > We only care about the maximal frame size, which we calculate > conservatively as an over-approximation, and track in > InstructionSelector::max_unoptimized_frame_height_ for now. In future > work, this value will be passed on to codegen, where it will be > applied as an offset to the stack pointer during the stack check. > > (The motivation behind this is to avoid stack overflows through deopts, > caused by size differences between optimized and unoptimized frames.) > > Note that this offset only ensure that the topmost optimized frame can > deopt without overflowing the stack limit. That's fine, because we only > deopt optimized frames one at a time. Other (non-topmost) frames are > only deoptimized once they are returned to. > > Drive-by: Print variable and total frame height in --trace-deopt. > > Bug: v8:9534 > Change-Id: I821684a9da93bff59c20c8ab226105e7e12d93eb > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1762024 > Commit-Queue: Jakob Gruber <jgruber@chromium.org> > Auto-Submit: Jakob Gruber <jgruber@chromium.org> > Reviewed-by: Sigurd Schneider <sigurds@chromium.org> > Reviewed-by: Georg Neis <neis@chromium.org> > Cr-Commit-Position: refs/heads/master@{#63330} TBR=neis@chromium.org,sigurds@chromium.org,jgruber@chromium.org Change-Id: I7b225c30bfc4e1d958276583f512a1ec5fa2b458 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:9534 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1764626Reviewed-by:
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Jakob Kummerow authored
ClusterFuzz found another case where "weird" embedder calls can cause signed integer overflow. This patch fixes the last addition in that function to use unsigned types. Bug: chromium:991676 Change-Id: Ia77a12020908de8f0a3bd1be7d3722ba5c5c919b Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1743971 Auto-Submit: Jakob Kummerow <jkummerow@chromium.org> Commit-Queue: Yang Guo <yangguo@chromium.org> Reviewed-by:
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Darius Mercadier authored
This CL enables the FreeList strategy introduced by CL 1762292. Bug: v8:9329 Change-Id: I73c1399aa9ae9a602f29f208c5543927a1405403 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1765533Reviewed-by:
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Sathya Gunasekaran authored
This reverts commit 5c59ba4f. Reason for revert: requires more thinking Original change's description: > [ic] Fix KeyedLoadIC for ArrayIndex access > > Previously, without support for converting strings to numbers we'd > switch to megamorphic state and go to the runtime always to do the > conversion causing a performance cliff. > > This patch improves the following js-perf-test scores: > Object-Lookup-String-Constant-BytecodeHandler: 4.25% > Object-Lookup-Index-String-BytecodeHandler: 5.41% > > Bug: v8:9449 > Change-Id: I63787fa84373fc946f1304b0141e48a52a1b4bcb > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1690953 > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org> > Cr-Commit-Position: refs/heads/master@{#63293} TBR=mythria@chromium.org,jyan@ca.ibm.com,gsathya@chromium.org,leszeks@chromium.org,ishell@chromium.org,verwaest@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. Bug: v8:9449 Change-Id: I6b6ad5901175c2e6bbd7516b13e91471adb5776d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1765532Reviewed-by:
Sathya Gunasekaran <gsathya@chromium.org> Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#63347}
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Michael Starzinger authored
This preserves the object identity of a {WebAssembly.Function} instance that is being re-exported by a module. Such functions are considered to have an internal [[FunctionAddress]] slot and hence require their object identity to be preserved (similar to {WasmExportedFunction} already). R=jkummerow@chromium.org TEST=mjsunit/wasm/type-reflection BUG=v8:7742 Change-Id: I88ba75fcd91ce04440008467f3b218a1ac3047db Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1763545Reviewed-by:Jakob Kummerow <jkummerow@chromium.org> Commit-Queue: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#63346}
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Darius Mercadier authored
This new FreeList should be a reasonable replacement for our old FreeListLegacy: it is slightly less efficient (~1%), but uses much less memory (often 5% less old_space size). It is based on FreeListMany, with the following additions: - A cache to waste less time iterating empty categories - A fast path for allocations done in the runtime and generated code - A slow path (the same as FreeListMany actually) for allocations done in the GC. Bug: v8:9329 Change-Id: Ifc10b88df7861266a721afd2c6e6d8357255ec4e Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1762292 Commit-Queue: Darius Mercadier <dmercadier@google.com> Reviewed-by: -
Andreas Haas authored
For import wrappers, we add a special "callable" parameter as the last parameter. This parameter is not set in the TurboFan graph but in the code generator. Therefore this parameter has to be allocated in a special register and cannot be lowered generically. With this CL we detect in the CallDescriptor lowering if the last parameter is this special "callable" parameter. If so, we preserve it in the lowered CallDescriptor in the same register. R=jkummerow@chromium.org Bug: v8:7741 Change-Id: I884baa41813011c811612ec84f4e3cfe86a0e83a Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1762014Reviewed-by:
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Sigurd Schneider authored
This CL adds a mechanism that prevents the RuntimeProfiler from triggering optimization of a function after %PrepareFunctionForOptimization has been called. This is useful to prevent flakiness in tests, as sometimes a function that already got deoptimized would receive a new code object from a concurrent compile that was triggered by a heuristic just in the right moment for the assertUnoptimized test to fail. For example, the following was happening: PrepareFunctionForOptimization [marking `testAdd` for optimized recompilation, reason: small function] [concurrently compiling method `testAdd` using TurboFan] [manually marking `testAdd` for non-concurrent optimization] [synchonously compiling method `testAdd` using TurboFan] [synchonously optimizing `testAdd` produced code object 0xAAAA - took 1.638 ms] Runtime_GetOptimizationStatus OPTIMIZED `testAdd` (code object 0xAAAA) DeoptimizeFunction `testAdd` with Code Object 0xAAAA [concurrently optimizing `testAdd` produced code object 0xBBBB - took 3.377 ms] Runtime_GetOptimizationStatus OPTIMIZED `testAdd` (code object 0xBBBB) Bug: v8:9563 Change-Id: Ia4c846aba95281589317d43b82383e70fe0a35f5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1763546Reviewed-by:
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Dominik Inführ authored
This reverts commit aba185a7. Reason for revert: We want to keep this API. Original change's description: > [heap] Remove slots when shrinking objects > > Immediately remove recorded old-to-new slots when shrinking objects. > This operation needs to drain the store buffer, however the store buffer > is supposed to be removed anyway. > > Also do not remove slots when left-trimming since this isn't needed for > correctness. > > Bug: v8:9454 > Change-Id: I751baf2dcd03c87aee9cb1ebd168e05bf373a738 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1762012 > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > Commit-Queue: Dominik Inführ <dinfuehr@chromium.org> > Cr-Commit-Position: refs/heads/master@{#63271} TBR=ulan@chromium.org,dinfuehr@chromium.org Bug: v8:9454 Change-Id: I9524a7448cc49948915fdccc5a6b1aa22e4de4a9 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1762524Reviewed-by:
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Maya Lekova authored
This reverts commit e66cee7e. Reason for revert: Speculative revert for https://ci.chromium.org/p/chromium/builders/try/linux-rel/173349 Original change's description: > [debug] only break on entry when immediately called from JS > > When we break on function entry, check whether the target function is being > called from JS after entering V8 through V8's API. We implement this by > keeping track of the stack height when we enter V8 through the API, and compare > the caller JS frame's stack height with that. > > R=szuend@chromium.org > > Bug: chromium:991217, chromium:992406 > Change-Id: I258ad9cef11fe0ef48de6fd5055790792fd0ec0c > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1762298 > Commit-Queue: Yang Guo <yangguo@chromium.org> > Reviewed-by: Simon Zünd <szuend@chromium.org> > Cr-Commit-Position: refs/heads/master@{#63331} TBR=yangguo@chromium.org,szuend@chromium.org Change-Id: I4bfb42f7ce1484807696048a09609f14113d10f4 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: chromium:991217, chromium:992406 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1762525Reviewed-by:
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Andreas Haas authored
R=mstarzinger@chromium.org Change-Id: Ic7a3538bbdf3ec2e68c83c397818ab0ca838ddbe Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1738855Reviewed-by:
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Mathias Bynens authored
Bug: v8:7834, v8:4709, v8:9646, v8:9647 Change-Id: Ie3648aec127504b9d6eb5b8ed491ba056fb68a8f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1763544 Auto-Submit: Mathias Bynens <mathias@chromium.org> Commit-Queue: Tamer Tas <tmrts@chromium.org> Reviewed-by:
Tamer Tas <tmrts@chromium.org> Cr-Commit-Position: refs/heads/master@{#63339}
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Dominik Inführ authored
This reverts commit 74e68e6a. Reason for revert: We want to keep this API. Original change's description: > [heap] Remove ClearRecordedSlots > > Do not pass it as argument to CreateObjectFillerAt and remove the enum. > > Bug: v8:9454 > Change-Id: Iafa37acbfea73d3cabb1732dbec0944db859fac2 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1762017 > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > Commit-Queue: Dominik Inführ <dinfuehr@chromium.org> > Cr-Commit-Position: refs/heads/master@{#63282} TBR=ulan@chromium.org,petermarshall@chromium.org,dinfuehr@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. Bug: v8:9454 Change-Id: I9a0a249294957740f831b28f5fefef132123d0e8 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1762523Reviewed-by:
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Joey Gouly authored
This was deleted in 5b2ab2f6, it seems only the first part of the condition should have been deleted. This changes (from the embedded builtins): movz x9, #0x2 cmp x9, x8 Back to: cmp x8, #0x2 This saves 0.29% in the embedded builtins size for a pointer-compression enabled arm64 build. Also a minor cleanup by removing the commutative boolean parameter and always commuting the FlagsContinuation. For a commutative operation the FlagsContinuation will stay the same. Change-Id: I5bba84a07bb32284b4756bc6293560ee106745f2 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1762522Reviewed-by:
Jakob Gruber <jgruber@chromium.org> Reviewed-by:
Georg Neis <neis@chromium.org> Commit-Queue: Martyn Capewell <martyn.capewell@arm.com> Cr-Commit-Position: refs/heads/master@{#63337}
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Georg Neis authored
Also: add hint for "prototype" property. This makes us not miss the ObjectCreate map in any of our tests. Bug: v8:7790 Change-Id: Icc9f91ebaf466a1cdfba27526335b930c744b9c5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1762519 Commit-Queue: Maya Lekova <mslekova@chromium.org> Reviewed-by:
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Leszek Swirski authored
Automated cleanup which finds patterns of `Node* a = foo` where `foo` is a TNode expression, and replaces Node* with the appropriate TNode. Bug: v8:9396 Change-Id: I8b0cd9baf10e74d6e2e336eae62eca6cfe6a9c11 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1762515 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Auto-Submit: Leszek Swirski <leszeks@chromium.org> Reviewed-by:
Tobias Tebbi <tebbi@chromium.org> Cr-Commit-Position: refs/heads/master@{#63335}
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Simon Zünd authored
Forge (Google3) can only run 64-bit executables. As Torque runs as part of the build process, we need a 32-bit "cross-compile" mode when we target 32-bit architectures. Note that this flag won't be needed in Chromium/V8 land, since we build V8 with the same bit width as the target architecture. This CL adds a new runtime flag to torque "-m32". When enabled, the flag forces 32-bit word sizes for various pointer/word sizes. By default, the host system sizes from {src/commons/globals.h} are used. R=tebbi@chromium.org Bug: v8:9641 Change-Id: I8701eec45e3fb59dc65049b0a679d34589c4127f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1763540 Commit-Queue: Simon Zünd <szuend@chromium.org> Reviewed-by: -
Maya Lekova authored
This fixes a serious performance regression in Octane2 future variant. Bug: v8:7790 Change-Id: Ie72d7b8ecf8af12e06a0ecae216cfb456908fe5d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1763542 Commit-Queue: Maya Lekova <mslekova@chromium.org> Commit-Queue: Georg Neis <neis@chromium.org> Auto-Submit: Maya Lekova <mslekova@chromium.org> Reviewed-by:
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Sathya Gunasekaran authored
Previously, the handler would load the constant field from the holder everytime by using the descriptor index. Instead, this patch inlines the constant field directly into the handler. Change-Id: Ia731811b135897033f4c5dc973031a30f25a64ed Bug: v8:9616 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1688829 Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org> Reviewed-by:
Igor Sheludko <ishell@chromium.org> Cr-Commit-Position: refs/heads/master@{#63332}
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Yang Guo authored
When we break on function entry, check whether the target function is being called from JS after entering V8 through V8's API. We implement this by keeping track of the stack height when we enter V8 through the API, and compare the caller JS frame's stack height with that. R=szuend@chromium.org Bug: chromium:991217, chromium:992406 Change-Id: I258ad9cef11fe0ef48de6fd5055790792fd0ec0c Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1762298 Commit-Queue: Yang Guo <yangguo@chromium.org> Reviewed-by:
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Jakob Gruber authored
This is another step towards considering the unoptimized frame size in stack checks within optimized code. With the changes in this CL, we now keep track of the maximal unoptimized frame size of the function that is currently being compiled. An optimized function may inline multiple unoptimized functions, so a single optimized frame can deopt to multiple frames. The real frame size thus differs in different parts of the optimized function. We only care about the maximal frame size, which we calculate conservatively as an over-approximation, and track in InstructionSelector::max_unoptimized_frame_height_ for now. In future work, this value will be passed on to codegen, where it will be applied as an offset to the stack pointer during the stack check. (The motivation behind this is to avoid stack overflows through deopts, caused by size differences between optimized and unoptimized frames.) Note that this offset only ensure that the topmost optimized frame can deopt without overflowing the stack limit. That's fine, because we only deopt optimized frames one at a time. Other (non-topmost) frames are only deoptimized once they are returned to. Drive-by: Print variable and total frame height in --trace-deopt. Bug: v8:9534 Change-Id: I821684a9da93bff59c20c8ab226105e7e12d93eb Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1762024 Commit-Queue: Jakob Gruber <jgruber@chromium.org> Auto-Submit: Jakob Gruber <jgruber@chromium.org> Reviewed-by:
Sigurd Schneider <sigurds@chromium.org> Reviewed-by:
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Peter Marshall authored
We have internal::TickSample which inherits from this, but we never use the public version in the API despite defining it there. Change-Id: I6f0ce7ee663ef821be57cfbad540c1660484a525 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1745472 Commit-Queue: Peter Marshall <petermarshall@chromium.org> Reviewed-by:
Alexei Filippov <alph@chromium.org> Reviewed-by:
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Johannes Henkel authored
New revision: d114a62e144cdfdae697fe0af6581ce39a31af37 Change-Id: I865edf40848d5593ae80a5ee0ed65c0c472a5a89 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1713234Reviewed-by:
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Joshua Litt authored
Bug: chromium:996232 Change-Id: I1df23835c18f5491a95e2faff17594ee7419cf75 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1763157 Auto-Submit: Joshua Litt <joshualitt@chromium.org> Reviewed-by:
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