Uh oh!
There was an error while loading. Please reload this page.
src: disable fast math on arm - #1398
Merged
Merged
Conversation
silverwind
commented
Apr 11, 2015
Contributor
Compiling |
silverwind
commented
Apr 11, 2015
Contributor
LGTM, hope this gets fixed soon in v8. Verified it works on my pi. |
The "fast" implementation of Math.exp() and Math.tanh() emits ARMv7 movt/movw instructions on ARMv6 (notably, the original Raspberry Pi.) Disable fast math for now. The adventurous can enable it again with the --fast_math switch. PR-URL: nodejs#1398 Refs: nodejs#1376 Reviewed-By: Roman Reiss <me@silverwind.io> V8-Bug: https://code.google.com/p/v8/issues/detail?id=4019
Don't disable fast math on ARMv7, only ARMv6. I hope I got all the v6 subarchs. PR-URL: nodejs#1398 Reviewed-By: Roman Reiss <me@silverwind.io>
rvagg added a commit
that referenced
this pull request
Apr 14, 2015
Notable changes: * C++ API: Fedor Indutny contributed a feature to V8 which has been backported to the V8 bundled in io.js. SealHandleScope allows a C++ add-on author to seal a HandleScope to prevent further, unintended allocations within it. Currently only enabled for debug builds of io.js. This feature helped detect the leak in #1075 and is now activated on the root HandleScope in io.js. (Fedor Indutny) #1395. * ARM: This release includes significant work to improve the state of ARM support for builds and tests. The io.js CI cluster's ARMv6, ARMv7 and ARMv8 build servers are now all (mostly) reporting passing builds and tests. - ARMv8 64-bit (AARCH64) is now properly supported, including a backported fix in libuv that was mistakenly detecting the existence of `epoll_wait()`. (Ben Noordhuis) #1365. - ARMv6: #1376 reported a problem with Math.exp() on ARMv6 (incl Raspberry Pi). The culprit is erroneous codegen for ARMv6 when using the "fast math" feature of V8. --nofast_math has been turned on for all ARMv6 variants by default to avoid this, fast math can be turned back on with --fast_math. (Ben Noordhuis) #1398. - Tests: timeouts have been tuned specifically for slower platforms, detected as ARMv6 and ARMv7. (Roman Reiss) #1366. * npm: Upgrade npm to 2.7.6. See the release notes (https://github.com/npm/npm/releases/tag/v2.7.6) for details.
targos added a commit
to targos/node
that referenced
this pull request
Aug 31, 2015
Ref: nodejs#1376 Ref: nodejs#1398 Issue fixed in V8: https://chromium.googlesource.com/v8/v8/+/81703350bbb9923d211fe5b79e90bd458b0916e2 V8-Bug: https://code.google.com/p/v8/issues/detail?id=4019 PR-URL: nodejs#2592 Reviewed-By: Rod Vagg <rod@vagg.org> Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>
targos added a commit
that referenced
this pull request
Sep 3, 2015
Ref: #1376 Ref: #1398 Issue fixed in V8: https://chromium.googlesource.com/v8/v8/+/81703350bbb9923d211fe5b79e90bd458b0916e2 V8-Bug: https://code.google.com/p/v8/issues/detail?id=4019 PR-URL: #2592 Reviewed-By: Rod Vagg <rod@vagg.org> Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>
rvagg pushed a commit
to rvagg/io.js
that referenced
this pull request
Sep 4, 2015
Ref: nodejs#1376 Ref: nodejs#1398 Issue fixed in V8: https://chromium.googlesource.com/v8/v8/+/81703350bbb9923d211fe5b79e90bd458b0916e2 V8-Bug: https://code.google.com/p/v8/issues/detail?id=4019 PR-URL: nodejs#2592 Reviewed-By: Rod Vagg <rod@vagg.org> Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>
targos added a commit
that referenced
this pull request
Sep 6, 2015
Ref: #1376 Ref: #1398 Issue fixed in V8: https://chromium.googlesource.com/v8/v8/+/81703350bbb9923d211fe5b79e90bd458b0916e2 V8-Bug: https://code.google.com/p/v8/issues/detail?id=4019 PR-URL: #2592 Reviewed-By: Rod Vagg <rod@vagg.org> Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>
targos added a commit
that referenced
this pull request
Sep 6, 2015
Ref: #1376 Ref: #1398 Issue fixed in V8: https://chromium.googlesource.com/v8/v8/+/81703350bbb9923d211fe5b79e90bd458b0916e2 V8-Bug: https://code.google.com/p/v8/issues/detail?id=4019 PR-URL: #2592 Reviewed-By: Rod Vagg <rod@vagg.org> Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>
targos added a commit
that referenced
this pull request
Sep 6, 2015
Ref: #1376 Ref: #1398 Issue fixed in V8: https://chromium.googlesource.com/v8/v8/+/81703350bbb9923d211fe5b79e90bd458b0916e2 V8-Bug: https://code.google.com/p/v8/issues/detail?id=4019 PR-URL: #2592 Reviewed-By: Rod Vagg <rod@vagg.org> Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for freeto join this conversation on GitHub.
Already have an account?
Sign in to comment
3 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
The "fast" implementation of Math.exp() and Math.tanh() emits ARMv7
movt/movw instructions on ARMv6 (notably, the original Raspberry Pi.)
Disable fast math for now. The adventurous can enable it again with
the --fast_math switch.
Refs: #1376
V8-Bug: https://code.google.com/p/v8/issues/detail?id=4019
R=@silverwind?
https://jenkins-iojs.nodesource.com/view/iojs/job/iojs+any-pr+multi/489/