- 05 Mar, 2020 1 commit
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Dan Elphick authored
Optimizes InstructionSelector::AddInputsToFrameStateDescriptor by taking advantage of SparseInputMask data structure to more quickly handle empty inputs and insert all the OptimizedOut entries in one go. The number of empty inputs is now determined using CountTrailingZeros rather than iterating over them one at a time. Gives a 9% improvement to SelectInstructions runtime call stat for Octane in turboprop. Bug: v8:10051 Change-Id: Ib13d6f9644b4c89ba0546a19fe0ed623d69fec99 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2037443 Commit-Queue: Dan Elphick <delphick@chromium.org> Reviewed-by: Georg Neis <neis@chromium.org> Cr-Commit-Position: refs/heads/master@{#66591}
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- 23 May, 2019 1 commit
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Yang Guo authored
NOPRESUBMIT=true TBR=mstarzinger@chromium.org Bug: v8:9247 Change-Id: I4cd6b79a1c2cba944f6f23caed59d4f1a4ee358b Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1624217 Commit-Queue: Yang Guo <yangguo@chromium.org> Reviewed-by: Igor Sheludko <ishell@chromium.org> Reviewed-by: Georg Neis <neis@chromium.org> Reviewed-by: Jaroslav Sevcik <jarin@chromium.org> Cr-Commit-Position: refs/heads/master@{#61790}
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- 04 Dec, 2017 1 commit
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Georg Neis authored
The motivation is to avoid bugs such as the one fixed in https://chromium-review.googlesource.com/c/v8/v8/+/800270. Bug: v8:7109 Change-Id: I82a55f4a78d289d00ae7bafe78b45d92bab07a6b Reviewed-on: https://chromium-review.googlesource.com/800291Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Reviewed-by: Michael Achenbach <machenbach@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Reviewed-by: Andreas Haas <ahaas@chromium.org> Commit-Queue: Georg Neis <neis@chromium.org> Cr-Commit-Position: refs/heads/master@{#49829}
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- 05 Jan, 2017 1 commit
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leszeks authored
Add a more efficient encoding for state values that have a large number of optimized-out inputs. Review-Url: https://codereview.chromium.org/2509623002 Cr-Commit-Position: refs/heads/master@{#42088}
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- 16 Oct, 2015 1 commit
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mstarzinger authored
This fixes the lifetime of nodes created by JSGlobalSpecialization that contain a simplified operator. In the case where this reducer runs as part of the inliner, the SimplifiedOperatorBuilder was instantiated with the wrong zone. This led to use-after-free of simplified operators. To avoid such situations in the future, we decided to move this operator builder into the JSGraph and make the situation uniform with all other operator builders. R=bmeurer@chromium.org BUG=chromium:543528 LOG=n Review URL: https://codereview.chromium.org/1409993002 Cr-Commit-Position: refs/heads/master@{#31334}
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- 19 Mar, 2015 1 commit
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jarin authored
With this change, we remember the types of frame state inputs (in a new operator, called TypedStateValues). Instead of inferring the value types when building translations, we used the recorded types. The original approach was not reliable because the passes after simplified lowering can change node types, and this in turn confuses the translation builder. BUG=chromium:468727 LOG=n R=bmeurer@chromium.org Review URL: https://codereview.chromium.org/1015423002 Cr-Commit-Position: refs/heads/master@{#27310}
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- 16 Mar, 2015 1 commit
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jarin authored
Instead of the current approach of storing flat vectors in frame states (and possibly reusing the last vector in AST graph builder), this change list builds a tree for the values and tries to reuse the nodes for different frame states. At the moment, we only use this for the local variable part of frame state, but nothing prevents us from using this for all parts. This change provides two new classes: one for creating the tree (StateValuesCache) and one for iterating the trees (StateValuesAccess). BUG= Review URL: https://codereview.chromium.org/1008213002 Cr-Commit-Position: refs/heads/master@{#27222}
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