- 20 Nov, 2019 6 commits
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Tamer Tas authored
https://chromium-review.googlesource.com/c/v8/v8/+/1926027 deprecated the "preparser" test suite. This CL removes the remaining test suite configuration. R=machenbach@chromium.org Bug: v8:10001 Change-Id: I45afb709ddad5be1ec6072a42567e669f900095e Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1926147 Auto-Submit: Tamer Tas <tmrts@chromium.org> Commit-Queue: Michael Achenbach <machenbach@chromium.org> Reviewed-by: Michael Achenbach <machenbach@chromium.org> Cr-Commit-Position: refs/heads/master@{#65062}
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Jakob Gruber authored
Bug: v8:9972 Change-Id: Ia85520eea8d3bcadc2573c16bf2778b1c3ff0c5a Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1926028 Auto-Submit: Jakob Gruber <jgruber@chromium.org> Commit-Queue: Georg Neis <neis@chromium.org> Reviewed-by: Georg Neis <neis@chromium.org> Cr-Commit-Position: refs/heads/master@{#65061}
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Deepti Gandluri authored
Bug: chromium:1010272 Change-Id: Ifc7ed5ff66b84e889668fd0820cea1d5b6af328f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1925809Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Commit-Queue: Deepti Gandluri <gdeepti@chromium.org> Cr-Commit-Position: refs/heads/master@{#65060}
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Tamer Tas authored
"preparser" is a legacy test-suite written in Python. "cctest/test-parsing" provides the same coverage and more for the preparser. This CL removes "preparser" stand-alone test-suite R=verwaest@chromium.org CC=machenbach@chromium.org Bug: v8:10001 Change-Id: I1823967e654e8d6d9e42eadfd667f90074d57ba9 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1926027Reviewed-by: Toon Verwaest <verwaest@chromium.org> Commit-Queue: Toon Verwaest <verwaest@chromium.org> Auto-Submit: Tamer Tas <tmrts@chromium.org> Cr-Commit-Position: refs/heads/master@{#65059}
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v8-ci-autoroll-builder authored
Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/456253c..9f9c46f Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/f7d5f0c..4c9781e Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/35a67a5..639872c TBR=machenbach@chromium.org,tmrts@chromium.org Change-Id: I34208500b48e4d745ae0aa83d6667c35ed8800cb Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1924898Reviewed-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@{#65058}
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Joshua Litt authored
This reverts commit f2a74165. Reason for revert: Clusterfuzz Bug: chromium:1026479 Original change's description: > [regexp] Re-execute regexp when '.indices' is accessed. > > Instead of storing a pointer to the last_match_info, which may > change, this cl modifies JSRegExpResult to store a pointer to > the original JSRegExp which generated it, as well as additional > data needed to re-execute the match. > > Basically a straight copy and tidy off jgruber@'s prototype: > https://chromium-review.googlesource.com/c/v8/v8/+/1876810 > > Bug: v8:9548 > Change-Id: I11b7deae681b8287e41e8d0e342291ff484751fb > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1910129 > Commit-Queue: Joshua Litt <joshualitt@chromium.org> > Reviewed-by: Jakob Gruber <jgruber@chromium.org> > Cr-Commit-Position: refs/heads/master@{#65053} TBR=jgruber@chromium.org,joshualitt@chromium.org Change-Id: I6294e3d7ac0b3e2bd9404697823b8d3cc2545c16 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:9548 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1925651Reviewed-by: Joshua Litt <joshualitt@chromium.org> Commit-Queue: Joshua Litt <joshualitt@chromium.org> Cr-Commit-Position: refs/heads/master@{#65057}
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- 19 Nov, 2019 34 commits
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Ng Zhi An authored
Bug: v8:9886 Change-Id: I5ed8ad13a4c92b61cddb8d86ec97e242252a556e Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1922231 Commit-Queue: Zhi An Ng <zhin@chromium.org> Reviewed-by: Bill Budge <bbudge@chromium.org> Cr-Commit-Position: refs/heads/master@{#65056}
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Z Nguyen-Huu authored
Bug: v8:8976 Change-Id: Ifa9b874b5b75b51046ba611db2b9fad3cbd33905 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1920066 Commit-Queue: Z Nguyen-Huu <duongn@microsoft.com> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#65055}
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Seth Brenith authored
Minor cleanup: some classes in Torque don't yet have any definitions for their fields, so it doesn't make sense to emit field layout macros for those classes. Bug: v8:7793 Change-Id: Iee38aa3cbe684f4a63329a676e2e94944dc05de1 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1925010Reviewed-by: Tobias Tebbi <tebbi@chromium.org> Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> Cr-Commit-Position: refs/heads/master@{#65054}
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Joshua Litt authored
Instead of storing a pointer to the last_match_info, which may change, this cl modifies JSRegExpResult to store a pointer to the original JSRegExp which generated it, as well as additional data needed to re-execute the match. Basically a straight copy and tidy off jgruber@'s prototype: https://chromium-review.googlesource.com/c/v8/v8/+/1876810 Bug: v8:9548 Change-Id: I11b7deae681b8287e41e8d0e342291ff484751fb Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1910129 Commit-Queue: Joshua Litt <joshualitt@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#65053}
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Milad Farazmand authored
function descriptor Change-Id: I439bac759cb363f35f6aa23a699b6ef1d9079684 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1925027Reviewed-by: Junliang Yan <jyan@ca.ibm.com> Commit-Queue: Milad Farazmand <miladfar@ca.ibm.com> Cr-Commit-Position: refs/heads/master@{#65052}
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Ng Zhi An authored
These instructions should always treat inputs as signed, and saturate to unsigned min/max values. E.g. given -1, it should saturate to 0. The spec text, https://github.com/WebAssembly/simd/blob/master/proposals/simd/SIMD.md#integer-to-integer-narrowing, has been updated to describe this. The changes here include codegen changes to ia32, x64, arm, and arm64, changes to arm simulator, assembler, and disassembler to handle the case of treating input as signed and narrowing to unsigned. The vqmovn instruction can handle this case, our assembler wasn't allowing callers to specify this. The interpreter and scalar lowering are also fixed with this change. Bug: v8:9729 Change-Id: I6f72baa825f59037f7754485df6a2964af59fe31 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1879423Reviewed-by: Deepti Gandluri <gdeepti@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Reviewed-by: Bill Budge <bbudge@chromium.org> Commit-Queue: Zhi An Ng <zhin@chromium.org> Cr-Commit-Position: refs/heads/master@{#65051}
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Ng Zhi An authored
Bug: v8:9886 Change-Id: I860bea0c317e9666662329e9b36598952c8ecfad Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1919697 Commit-Queue: Zhi An Ng <zhin@chromium.org> Reviewed-by: Bill Budge <bbudge@chromium.org> Cr-Commit-Position: refs/heads/master@{#65050}
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Ng Zhi An authored
Spill/fill now take offsets instead of indices. We provide a helper, GetStackOffsetFromIndex, for callers. This is currently only useful while slot sizes are still fixed to 8 bytes. StackTransferRecipe's RegisterLoad now works in terms of offset. LiftoffStackSlots work in terms of offset as well. TransferStackSlot currently still works in terms of indicies, but can be converted to use offsets in a subsequent change. Bug: v8:9909 Change-Id: If54fb844309bdfd641720d063135dd59551813e0 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1922489Reviewed-by: Clemens Backes <clemensb@chromium.org> Commit-Queue: Zhi An Ng <zhin@chromium.org> Cr-Commit-Position: refs/heads/master@{#65049}
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Igor Sheludko authored
This reverts commit 386e7dd2. Reason for revert: blocking the V8 roll on linux_chromium_asan_rel_ng Original change's description: > [ptr-compr][x64] Temporarily enable pointer compression on x64 > > Bug: v8:7703 > Change-Id: Iaa7a35a2438dc1181f60289190191b519e45bed0 > Cq-Include-Trybots: luci.v8.try:v8_linux64_ubsan_rel_ng,v8_linux64_tsan_rel > Cq-Include-Trybots: luci.v8.try:v8_linux64_cfi_rel_ng > Cq-Include-Trybots: luci.chromium.try:fuchsia_x64,linux-rel,mac-rel > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1924347 > Reviewed-by: Michael Achenbach <machenbach@chromium.org> > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > Commit-Queue: Igor Sheludko <ishell@chromium.org> > Cr-Commit-Position: refs/heads/master@{#65033} TBR=machenbach@chromium.org,ishell@chromium.org,verwaest@chromium.org Change-Id: I6dd5c0c80c9d5b4a786c9b42a60a5b850c9168ac No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:7703 Cq-Include-Trybots: luci.v8.try:v8_linux64_ubsan_rel_ng,v8_linux64_tsan_rel Cq-Include-Trybots: luci.v8.try:v8_linux64_cfi_rel_ng Cq-Include-Trybots: luci.chromium.try:fuchsia_x64,linux-rel,mac-rel Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1925148 Commit-Queue: Igor Sheludko <ishell@chromium.org> Reviewed-by: Igor Sheludko <ishell@chromium.org> Cr-Commit-Position: refs/heads/master@{#65048}
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Milad Farazmand authored
Port a7b9e588 R=zhin@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com BUG= LOG=N Change-Id: I3406f424dcf918edd8cc51f7fe94dc28c2b4ed85 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1924867Reviewed-by: Junliang Yan <jyan@ca.ibm.com> Commit-Queue: Milad Farazmand <miladfar@ca.ibm.com> Cr-Commit-Position: refs/heads/master@{#65047}
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Seth Brenith authored
This is part 3 of Torquifying DescriptorArray: making it possible to use the "descriptors" indexed field from code written in Torque. A small macro EnsureArrayLengthWritable is converted to demonstrate the new functionality. This CL also introduces the arrow token `->` and desugars a->b to (*a).b so that the new builtin looks a little cleaner. Bug: v8:7793 Change-Id: I84eaa97f664aa67273866760e6ede4346a3ee2f9 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1900332 Commit-Queue: Seth Brenith <seth.brenith@microsoft.com> Reviewed-by: Tobias Tebbi <tebbi@chromium.org> Cr-Commit-Position: refs/heads/master@{#65046}
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Ng Zhi An authored
Bug: v8:9886 Change-Id: I88a4364596ef529c3873f4c80f36e0bfbe71e022 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1919695Reviewed-by: Bill Budge <bbudge@chromium.org> Reviewed-by: Deepti Gandluri <gdeepti@chromium.org> Commit-Queue: Zhi An Ng <zhin@chromium.org> Cr-Commit-Position: refs/heads/master@{#65045}
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Dan Elphick authored
Handlify raw SharedFunctionInfo in CreateInterpreterDataForDeserializedCode. Bug: v8:9992 Change-Id: I58fd2a78723cb3cd4784086c171c58cf2c32aacc Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1924362 Auto-Submit: Dan Elphick <delphick@chromium.org> Commit-Queue: Maya Lekova <mslekova@chromium.org> Reviewed-by: Maya Lekova <mslekova@chromium.org> Cr-Commit-Position: refs/heads/master@{#65044}
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Leszek Swirski authored
Bug: v8:9996 Change-Id: I8c39a3a74a58e35eea784b8b26a2c519819b3269 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1924364 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Igor Sheludko <ishell@chromium.org> Auto-Submit: Leszek Swirski <leszeks@chromium.org> Reviewed-by: Igor Sheludko <ishell@chromium.org> Cr-Commit-Position: refs/heads/master@{#65043}
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Igor Sheludko authored
Bug: chromium:1022270 Change-Id: I6f1ee944b6cee977894d3cc425445f326a0866e5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1924351Reviewed-by: Toon Verwaest <verwaest@chromium.org> Commit-Queue: Igor Sheludko <ishell@chromium.org> Cr-Commit-Position: refs/heads/master@{#65042}
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Ng Zhi An authored
Bug: v8:9813 Change-Id: I75ca39612f0420548a56cc32edaa13a36a9713e9 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1900661Reviewed-by: Bill Budge <bbudge@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Commit-Queue: Zhi An Ng <zhin@chromium.org> Cr-Commit-Position: refs/heads/master@{#65041}
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Igor Sheludko authored
Bug: v8:9708 Change-Id: Iba4bf148437b9aa27d9b57ee2ebf48948d1ac163 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1801838Reviewed-by: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Igor Sheludko <ishell@chromium.org> Cr-Commit-Position: refs/heads/master@{#65040}
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Jakob Gruber authored
This reduction relies on a known object layout of the regexp instance in order to access the lastIndex field through a statically-determined offset. Prior to this CL, we checked only for instance types, not for the map, and thus it was possible to read garbage from either inside or outside the current object. Bug: chromium:1024758,v8:7779 Change-Id: I1eec8220797f443bdf3d05804e54f33b21fa2f00 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1924353Reviewed-by: Georg Neis <neis@chromium.org> Reviewed-by: Sigurd Schneider <sigurds@chromium.org> Commit-Queue: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#65039}
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Michael Achenbach authored
TBR=neis@chromium.org NOTRY=true Bug: v8:9984 Change-Id: If192eb8680f8147d64aaa796955cb2ca38d0246d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1924360Reviewed-by: Michael Achenbach <machenbach@chromium.org> Commit-Queue: Michael Achenbach <machenbach@chromium.org> Cr-Commit-Position: refs/heads/master@{#65038}
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Nico Hartmann authored
This CL implements torque builtins for BigInt subtraction and extends the compilation pipeline to lower calls to the generic subtraction to SpeculativeBigIntSubtract and later to BigIntSubtract with necessary checks in case of BigInt feedback. The CL also implements lowering of these operators to native machine word operations on 64 bit architectures if they are used in a truncating context (aka BigInt.asUintN). Bug: v8:9407 Change-Id: Idf5da14c380bc7c12375e7f084a3e1c455303f5f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1895566Reviewed-by: Jakob Kummerow <jkummerow@chromium.org> Reviewed-by: Georg Neis <neis@chromium.org> Commit-Queue: Nico Hartmann <nicohartmann@chromium.org> Cr-Commit-Position: refs/heads/master@{#65037}
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Georg Neis authored
Bytecode flushing bit me again. Bug: v8:9945, v8:9983 Change-Id: I9e4f9dd5e1793d60b24def447a8374e550fa248a Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1924352 Auto-Submit: Georg Neis <neis@chromium.org> Reviewed-by: Nico Hartmann <nicohartmann@chromium.org> Commit-Queue: Georg Neis <neis@chromium.org> Cr-Commit-Position: refs/heads/master@{#65036}
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Joey Gouly authored
For arm64 decompressing a TaggedSigned results in a 64-bit value, with the top 32 bits zeroed and the lower 32 bits being the SMI. This patch, with the --debug-code flag enabled, will corrupt the top 32 bits to try and catch places that are using 64-bit operations instead of 32-bit operations. Change-Id: I3d3048c4f4b87f3bce26d0c7eb41789ec6b99f5b Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1917099Reviewed-by: Santiago Aboy Solanes <solanes@chromium.org> Reviewed-by: Igor Sheludko <ishell@chromium.org> Commit-Queue: Joey Gouly <joey.gouly@arm.com> Cr-Commit-Position: refs/heads/master@{#65035}
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Mythri A authored
Bug: v8:9810 Change-Id: I6d7b9099a53badfdfdfa6b57211931b39ae72124 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1917154Reviewed-by: Igor Sheludko <ishell@chromium.org> Commit-Queue: Mythri Alle <mythria@chromium.org> Cr-Commit-Position: refs/heads/master@{#65034}
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Igor Sheludko authored
Bug: v8:7703 Change-Id: Iaa7a35a2438dc1181f60289190191b519e45bed0 Cq-Include-Trybots: luci.v8.try:v8_linux64_ubsan_rel_ng,v8_linux64_tsan_rel Cq-Include-Trybots: luci.v8.try:v8_linux64_cfi_rel_ng Cq-Include-Trybots: luci.chromium.try:fuchsia_x64,linux-rel,mac-rel Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1924347Reviewed-by: Michael Achenbach <machenbach@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Commit-Queue: Igor Sheludko <ishell@chromium.org> Cr-Commit-Position: refs/heads/master@{#65033}
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Georg Neis authored
The optimization behavior in these configurations is strange, I'm still trying to understand what exactly is going on. Bug: v8:9945, v8:9983 Change-Id: I52782b9e73decb9f3b2439cddd5e23068faebdf4 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1924349Reviewed-by: Nico Hartmann <nicohartmann@chromium.org> Commit-Queue: Georg Neis <neis@chromium.org> Cr-Commit-Position: refs/heads/master@{#65032}
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Zhao Jiazhong authored
Former CL 352bbb12 https://crrev.com/c/1893192 made an optimization that move non-JS linkage builtins code objects into RO_SPACE, but caused v8 crash on mips platform, so temporarily disable the change on mips platform. Change-Id: Iffba1a35985ccf6688e29e35db20602d69a496e6 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1919442 Auto-Submit: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn> Reviewed-by: Dan Elphick <delphick@chromium.org> Commit-Queue: Dan Elphick <delphick@chromium.org> Cr-Commit-Position: refs/heads/master@{#65031}
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Jakob Gruber authored
Drive-by: For more flexibility (e.g. for future IsNull methods), remove 'Constant' from names in the list of constants. Bug: v8:9972 Change-Id: I66ec64c30cb397641d77cd26b514e8ac52763e16 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1924348 Commit-Queue: Jakob Gruber <jgruber@chromium.org> Commit-Queue: Georg Neis <neis@chromium.org> Auto-Submit: Jakob Gruber <jgruber@chromium.org> Reviewed-by: Georg Neis <neis@chromium.org> Cr-Commit-Position: refs/heads/master@{#65030}
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Clemens Backes authored
In most cases where we bail out to TurboFan, we actually have a fallback that just calls a C function instead. This fallback did not exist initially, but was added later for other platforms (see e.g. https://crrev.com/c/1044187). By reusing that fallback on intel, we remove another portion of function that could not be compiled in Liftoff on specific CPUs. R=ahaas@chromium.org Bug: v8:9919 Change-Id: I151000c004dc330362337bf7ddeaec68390c3467 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1921986Reviewed-by: Andreas Haas <ahaas@chromium.org> Commit-Queue: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#65029}
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Michael Starzinger authored
R=jgruber@chromium.org Change-Id: If4b439ac7465cd984600816ff619d66f04cf174b Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1917156Reviewed-by: Jakob Gruber <jgruber@chromium.org> Commit-Queue: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#65028}
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Georg Neis authored
... by disallowing checkpoint elimination across function boundaries. See the comment in checkpoint-elimination.cc and the tests for details. Bug: v8:9945 Change-Id: Ibf4ab6f0e4e709e26d3c4428a082ef45dcbeb8b0 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1906208 Auto-Submit: Georg Neis <neis@chromium.org> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> Reviewed-by: Maya Lekova <mslekova@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Commit-Queue: Georg Neis <neis@chromium.org> Cr-Commit-Position: refs/heads/master@{#65027}
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Simon Zünd authored
Individual frames of a stack frame in the frame cache might point to the JSFunction of that corresponding stack frame. It is illegal to serialize JSFunction objects in the isolate snapshot, so the attempt to serialize the stack frame cache results in a crash. This can happen when a warmup script is run, before a snapshot is created. This CL fixes the crash by not utilizing the stack frame cache in case the serializer is enabled. Change-Id: I8b79a06b8cff36e1f54b54d3d8e5397b07ba52e7 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1923068 Auto-Submit: Simon Zünd <szuend@chromium.org> Reviewed-by: Yang Guo <yangguo@chromium.org> Commit-Queue: Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#65026}
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Jakob Gruber authored
We recently extended function-entry stack checks by an offset representing the difference in optimized and unoptimized frame sizes, with the intent of avoiding stack overflows during deopts. Although the generated code is very efficient (just a single additional register subtraction, executed exactly once per call), perf impact is measurable. To avoid the overhead in most cases, this CL adds a stack slack, currently set to 256 bytes, by which deopts are allowed to exceed the real V8 stack limit. For function-entry stack checks with an offset less than stack slack, the offset is not applied and the more efficient version of the stack check is emitted. The V8 limit is chosen to be smaller than OS stack size (assumed to be at least 1 MB). This guarantee is upheld even with slack. Bug: chromium:1020989,v8:9534 Change-Id: Idee2e7ad1fa7810bf086a9f72ce00a9717010310 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1910099Reviewed-by: Georg Neis <neis@chromium.org> Reviewed-by: Tobias Tebbi <tebbi@chromium.org> Commit-Queue: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#65025}
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v8-ci-autoroll-builder authored
Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/253c17c..456253c Rolling v8/buildtools: https://chromium.googlesource.com/chromium/src/buildtools/+log/140e4d7..6b3e658 Rolling v8/buildtools/third_party/libc++/trunk: https://chromium.googlesource.com/chromium/llvm-project/libcxx/+log/5938e05..78d6a77 Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/a6bbfb9..f7d5f0c Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/1f392b8..35a67a5 Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/fdd6048..7506d59 TBR=machenbach@chromium.org,tmrts@chromium.org Change-Id: I0f90feffadd437d852796e7f9268167841c4cb92 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1923090Reviewed-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@{#65024}
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Shu-yu Guo authored
Merged upstream in https://github.com/tc39/test262/commit/a31961f7ea Bug: v8:7834 Change-Id: Ic2e0e4558357edabf3d155fdebd3bc195c12e68c Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1922889 Auto-Submit: Shu-yu Guo <syg@chromium.org> Reviewed-by: Adam Klein <adamk@chromium.org> Commit-Queue: Adam Klein <adamk@chromium.org> Cr-Commit-Position: refs/heads/master@{#65023}
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