- 19 Jun, 2017 1 commit
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gdeepti authored
- Use correct prefixes for SIMD/Atomics ops - S128 LoadMem/StoreMem should not use 0xc0/0xc1 opcodes, these are now being used for sign extension - S128 LoadMem/StoreMem should use prefixed opcodes BUG=v8:6020 Review-Url: https://codereview.chromium.org/2943773002 Cr-Commit-Position: refs/heads/master@{#46016}
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- 13 Jun, 2017 1 commit
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bbudge authored
- Eliminates S32x4Shuffle, S16x8Shuffle opcodes. All shuffles are subsumed by S8x16Shuffle. This aligns us with the latest WASM SIMD spec. LOG=N BUG=v8:6020 Review-Url: https://codereview.chromium.org/2923103003 Cr-Commit-Position: refs/heads/master@{#45929}
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- 08 Jun, 2017 1 commit
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bbudge authored
- Eliminates b1x4, b1x8, and b1x16 as distinct WASM types. - All vector comparisons return v128 type. - Eliminates b1xN and, or, xor, not. - Selects take a v128 mask vector and are now bit-wise. - Adds a new test for Select, where mask is non-canonical (not 0's and -1's). LOG=N BUG=v8:6020 Review-Url: https://codereview.chromium.org/2919203002 Cr-Commit-Position: refs/heads/master@{#45795}
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- 22 May, 2017 1 commit
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Wiktor Garbacz authored
Change-Id: I20ed35a7fb5104a9cc66bb54fa8966589c43d7f9 Reviewed-on: https://chromium-review.googlesource.com/507287Reviewed-by: Andreas Haas <ahaas@chromium.org> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> Reviewed-by: Daniel Clifford <danno@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Reviewed-by: Marja Hölttä <marja@chromium.org> Reviewed-by: Jochen Eisinger <jochen@chromium.org> Commit-Queue: Wiktor Garbacz <wiktorg@google.com> Cr-Commit-Position: refs/heads/master@{#45458}
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- 04 May, 2017 1 commit
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bbudge authored
- Removes primitive shuffle opcodes. - Adds Shuffle opcode for S32x4, S16x8, S8x16. - Adds code to ARM instruction selector to pick best opcodes for some common shuffle patterns. LOG=N BUG=v8:6020 Review-Url: https://codereview.chromium.org/2847663005 Cr-Commit-Position: refs/heads/master@{#45104}
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- 03 May, 2017 1 commit
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Clemens Hammacher authored
During computation of the side table, ignore stack effects of instructions following any unconditional jump in the same block (|unreachable|, |br|, |br_table| or |return| jump out of the block). Without this fix, the current stack height might underflow, or we compute an unnecessarily large max_stack_height_. Note that those instruction will never get executed anyway. Hence, we don't need to store any side table information for such unreachable code. R=rossberg@chromium.org BUG=chromium:716936, chromium:715990 Change-Id: I282f7f18ba1b972a112210e692f6cd05cf32308c Reviewed-on: https://chromium-review.googlesource.com/493266Reviewed-by: Andreas Rossberg <rossberg@chromium.org> Commit-Queue: Clemens Hammacher <clemensh@chromium.org> Cr-Commit-Position: refs/heads/master@{#45059}
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- 25 Apr, 2017 2 commits
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Clemens Hammacher authored
This header file is only used from tests. Also, move the LoadStoreOpcodeOf method (only used in tests) from wasm-opcodes.h to wasm-macro-gen.h. R=ahaas@chromium.org Change-Id: I8d4691be494b5c1fbe3084441329850930bad647 Reviewed-on: https://chromium-review.googlesource.com/486861 Commit-Queue: Clemens Hammacher <clemensh@chromium.org> Reviewed-by: Andreas Haas <ahaas@chromium.org> Cr-Commit-Position: refs/heads/master@{#44845}
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Clemens Hammacher authored
Instead of dynamically tracking the block nesting, precompute the information statically. The interpreter was already using a side table to store the pc diff for each break, conditional break and others. The information needed to adjust the stack was tracked dynamically, however. This CL also precomputes this information, as it is statically known. Instead of just storing the pc diff in the side table, we now store the pc diff, the stack height diff and the arity of the target block. Local measurements show speedups of 5-6% on average, sometimes >10%. R=ahaas@chromium.org BUG=v8:5822 Change-Id: I986cfa989aabe1488f2ff79ddbfbb28aeffe1452 Reviewed-on: https://chromium-review.googlesource.com/485482Reviewed-by: Andreas Haas <ahaas@chromium.org> Commit-Queue: Clemens Hammacher <clemensh@chromium.org> Cr-Commit-Position: refs/heads/master@{#44837}
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- 24 Apr, 2017 2 commits
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bbudge authored
- Adds new F32x4AddHoriz, I32x4AddHoriz, etc. to WASM opcodes. - Implements them for ARM. LOG=N BUG=v8:6020 Review-Url: https://codereview.chromium.org/2804883008 Cr-Commit-Position: refs/heads/master@{#44812}
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Clemens Hammacher authored
Local refactoring to replace if cascade by switch. For readability and performance. R=ahaas@chromium.org Change-Id: I064d51c7c8232fefcde223b086eb7b9caf44f94c Reviewed-on: https://chromium-review.googlesource.com/485480 Commit-Queue: Clemens Hammacher <clemensh@chromium.org> Reviewed-by: Andreas Haas <ahaas@chromium.org> Cr-Commit-Position: refs/heads/master@{#44798}
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- 21 Apr, 2017 1 commit
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bbudge authored
These can be synthesized from existing operations and scheduled for better performance than if we have to generate blocks of instructions that take many cycles to complete. - Remove F32x4RecipRefine, F32x4RecipSqrtRefine. Clients are better off synthesizing these from splats, multiplies and adds. - Remove F32x4Div, F32x4Sqrt, F32x4MinNum, F32x4MaxNum. Clients are better off synthesizing these or using the reciprocal approximations, possibly with a refinement step. LOG=N BUG=v8:6020 Review-Url: https://codereview.chromium.org/2827143002 Cr-Commit-Position: refs/heads/master@{#44784}
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- 19 Apr, 2017 1 commit
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bbudge authored
- Adds unary Reverse shuffles (swizzles): S32x2Reverse, S16x4Reverse, S16x2Reverse, S8x8Reverse, S8x4Reverse, S8x2Reverse. Reversals are done within the sub-vectors that prefix the opcode name, e.g. S8x2 reverses the 8 consecutive pairs in an S8x16 vector. - Adds binary Zip (interleave) left and right half-shuffles to return a single vector: S32x4ZipLeft, S32x4ZipRightS16x8ZipLeft, S16x8ZipRight, S8x16ZipLeft, S8x16ZipRight. - Adds binary Unzip (de-interleave) left and right half shuffles to return a single vector: S32x4UnzipLeft, S32x4UnzipRight, S16x8UnzipLeft, S16x8UnzipRight, S8x16UnzipLeft, S8x16UnzipRight. - Adds binary Transpose left and right half shuffles to return a single vector: S32x4TransposeLeft, S32x4TransposeRight, S16x8TransposeLeft, S16xTransposeRight, S8x16TransposeLeft, S8x16TransposeRight. - Adds binary Concat (concatenate) byte shuffle: S8x16Concat #bytes to paste two vectors together. LOG=N BUG=v8:6020 Review-Url: https://codereview.chromium.org/2801183002 Cr-Commit-Position: refs/heads/master@{#44734}
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- 10 Apr, 2017 1 commit
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bbudge authored
- Adds WASM opcodes I32x4SConvertI16x8Low, I32x4SConvertI16x8High, I32x4UConvertI16x8Low, I32x4UConvertI16x8High, which unpack half of an I16x8 register into a whole I32x4 register, with signed or unsigned extension. Having separate Low/High opcodes works around the difficulty of having multiple output registers, which would be necessary if we unpacked the entire I16x8 register. - Adds WASM opcodes I16x8SConvertI8x16Low, I16x8SConvertI8x16High, I16x8UConvertI8x16Low, I16x8UConvertI8x16High, similarly to above. - Adds WASM opcodes I16x8SConvertI32x4, I16x8UConvertI32x4, I8x16SConvert16x8, I8x16UConvertI16x8, which pack two source registers into a single destination register with signed or unsigned saturation. These could have been separated into half operations, but this is simpler to implement with SSE, AVX, and is acceptable on ARM. It also avoids adding operations that only modify half of their destination register. - Implements these opcodes for ARM. LOG=N BUG=v8:6020 Review-Url: https://codereview.chromium.org/2800523002 Cr-Commit-Position: refs/heads/master@{#44541}
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- 16 Mar, 2017 1 commit
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Clemens Hammacher authored
This introduces iterators for the parameters and return types of a signature. This required extending the constructor of iterator_range for perfect forwarding. I also moved the HasJSCompatibleSignature to a header file in order to reuse it from the interpreter. R=ahaas@chromium.org, titzer@chromium.org Change-Id: Ie77f87ef87fdfd3138b2106640ac7c481cf247e6 Reviewed-on: https://chromium-review.googlesource.com/455777 Commit-Queue: Clemens Hammacher <clemensh@chromium.org> Reviewed-by: Andreas Haas <ahaas@chromium.org> Reviewed-by: Ben Titzer <titzer@chromium.org> Cr-Commit-Position: refs/heads/master@{#43854}
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- 15 Mar, 2017 1 commit
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bbudge authored
- Adds new load/store opcodes (0xc0, 0xc1) for S128 type. - Implements these for ARM. - Enables more WASM SIMD tests, and adds new LoadStoreLoad test. LOG=N BUG=v8:6020 Review-Url: https://codereview.chromium.org/2745853002 Cr-Commit-Position: refs/heads/master@{#43841}
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- 08 Mar, 2017 1 commit
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bbudge authored
- Implements Float32x4 Mul, Min, Max for ARM. - Implements Float32x4 relational ops for ARM. - Implements reciprocal, reciprocal square root estimate/refinement ops for ARM. - Reorganizes tests to eliminate need for specialized float ref fns in tests. - Rephrases Gt, Ge in terms of Lt, Le, and eliminates the redundant machine operators. - Renames test-run-wasm-simd test names to match instructions. LOG=N BUG=v8:6020 Review-Url: https://codereview.chromium.org/2729943002 Cr-Commit-Position: refs/heads/master@{#43658}
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- 02 Mar, 2017 2 commits
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bbudge authored
- Implements Select instructions using a single ARM vbsl instruction. - Renames boolean machine operators to match renamed S1xN machine types. - Implements S1xN vector logical ops, AND, OR, XOR, NOT for ARM. - Implements S1xN AnyTrue, AllTrue ops for ARM. - Eliminates unused SIMD op categories in opcodes.h. LOG=N BUG=v8:6020 Review-Url: https://codereview.chromium.org/2711863002 Cr-Commit-Position: refs/heads/master@{#43556}
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clemensh authored
Most are minor performance optimizations that aggregated while implementing other changes. Those fixes will probably not be visible in perf graphs, but they bothered me anyway. R=titzer@chromium.org, ahaas@chromium.org Review-Url: https://codereview.chromium.org/2714373003 Cr-Commit-Position: refs/heads/master@{#43535}
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- 21 Feb, 2017 1 commit
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bbudge authored
- Adds new machine types SimdBool4/8/16 for the different boolean vector types. - Adds a kSimdMaskRegisters flag for each platform. These are all false for now. - Removes Create, ExtractLane, ReplaceLane, Equal, NotEqual, Swizzle and Shuffle opcodes from the Boolean types. These are unlikely to be well supported natively, and can be synthesized using Select. - Changes the signature of Relational opcodes to return boolean vectors. - Changes the signature of Select opcodes to take boolean vectors. - Updates the ARM implementation of Relational and Select opcodes. LOG=N BUG=v8:4124 Review-Url: https://codereview.chromium.org/2700813002 Cr-Commit-Position: refs/heads/master@{#43348}
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- 13 Feb, 2017 1 commit
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bbudge authored
- Renames select, swizzle, and shuffle to be consistent with the S128 and existing S32x4 ops, and reflect that these aren't arithmetic. e.g. I16x8Swizzle -> S16x8Swizzle. - Implements S16x8 and S8x16 Select operations and tests. - Implements S128And, Or, Xor, Not operations and tests. - Implements Swizzle for 32x4 formats. - Refactors test macros that generate SIMD code. TEST=cctest/test-run-wasm-simd/* LOG=N BUG=v8:4124 Review-Url: https://codereview.chromium.org/2683713003 Cr-Commit-Position: refs/heads/master@{#43168}
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- 07 Feb, 2017 1 commit
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bbudge authored
- Adds logical and arithmetic shifts for all integer types. - Adds min and max for all integer types. - Adds saturating add and subtract for small integer types. - Removes lane operations from the MachineOperatorCache. LOG=N BUG=v8:4124 Review-Url: https://codereview.chromium.org/2668013003 Cr-Commit-Position: refs/heads/master@{#43005}
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- 02 Feb, 2017 1 commit
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titzer authored
R=rossberg@chromium.org, bradnelson@chromium.org BUG=chromium:682659 Review-Url: https://codereview.chromium.org/2670673002 Cr-Commit-Position: refs/heads/master@{#42904}
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- 20 Jan, 2017 1 commit
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titzer authored
R=clemensh@chromium.org BUG= Review-Url: https://codereview.chromium.org/2644323002 Cr-Commit-Position: refs/heads/master@{#42557}
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- 09 Jan, 2017 1 commit
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titzer authored
R=clemensh@chromium.org BUG= Review-Url: https://codereview.chromium.org/2595733003 Cr-Commit-Position: refs/heads/master@{#42141}
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- 21 Dec, 2016 2 commits
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titzer authored
This is more renaming work to comply with the naming in the public design repository. E.g. types are called "value types" and we no longer refer to ASTs. R=clemensh@chromium.org BUG= Review-Url: https://codereview.chromium.org/2594993002 Cr-Commit-Position: refs/heads/master@{#41891}
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titzer authored
Since WASM is no longer an AST :-( R=clemensh@chromium.org BUG= Review-Url: https://codereview.chromium.org/2594973003 Cr-Commit-Position: refs/heads/master@{#41889}
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- 19 Dec, 2016 1 commit
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bbudge authored
- Adds Float32x4 ExtractLane, ReplaceLane, Splat, Add, Sub, and conversions to Int32x4 and Uint32x4. - Adds Int32x4 ExtractLane, ReplaceLane, Splat, Add, Sub and conversions to Float32x4 (int and unsigned int). - Adds Int32x4 CompareEqual, CompareNotEqual. - Adds S32x4 Select. - Adds tests for all new SIMD operations. LOG=N BUG=v8:4124 Review-Url: https://codereview.chromium.org/2584863002 Cr-Commit-Position: refs/heads/master@{#41828}
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- 15 Dec, 2016 2 commits
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ahaas authored
Original commit message: [wasm] Introduce the TrapIf and TrapUnless operators to generate trap code. Some instructions in WebAssembly trap for some inputs, which means that the execution is terminated and (at least at the moment) a JavaScript exception is thrown. Examples for traps are out-of-bounds memory accesses, or integer divisions by zero. Without the TrapIf and TrapUnless operators trap check in WebAssembly introduces 5 TurboFan nodes (branch, if_true, if_false, trap-reason constant, trap-position constant), in addition to the trap condition itself. Additionally, each WebAssembly function has four TurboFan nodes (merge, effect_phi, 2 phis) whose number of inputs is linear to the number of trap checks in the function. Especially for functions with high numbers of trap checks we observe a significant slowdown in compilation time, down to 0.22 MiB/s in the sqlite benchmark instead of the average of 3 MiB/s in other benchmarks. By introducing a TrapIf common operator only a single node is necessary per trap check, in addition to the trap condition. Also the nodes which are shared between trap checks (merge, effect_phi, 2 phis) would disappear. First measurements suggest a speedup of 30-50% on average. This CL only implements TrapIf and TrapUnless on x64. The implementation is also hidden behind the --wasm-trap-if flag. Please take a special look at how the source position is transfered from the instruction selector to the code generator, and at the context that is used for the runtime call. R=titzer@chromium.org Review-Url: https://codereview.chromium.org/2571813002 Cr-Commit-Position: refs/heads/master@{#41735}
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ahaas authored
Some instructions in WebAssembly trap for some inputs, which means that the execution is terminated and (at least at the moment) a JavaScript exception is thrown. Examples for traps are out-of-bounds memory accesses, or integer divisions by zero. Without the TrapIf and TrapUnless operators trap check in WebAssembly introduces 5 TurboFan nodes (branch, if_true, if_false, trap-reason constant, trap-position constant), in addition to the trap condition itself. Additionally, each WebAssembly function has four TurboFan nodes (merge, effect_phi, 2 phis) whose number of inputs is linear to the number of trap checks in the function. Especially for functions with high numbers of trap checks we observe a significant slowdown in compilation time, down to 0.22 MiB/s in the sqlite benchmark instead of the average of 3 MiB/s in other benchmarks. By introducing a TrapIf common operator only a single node is necessary per trap check, in addition to the trap condition. Also the nodes which are shared between trap checks (merge, effect_phi, 2 phis) would disappear. First measurements suggest a speedup of 30-50% on average. This CL only implements TrapIf and TrapUnless on x64. The implementation is also hidden behind the --wasm-trap-if flag. Please take a special look at how the source position is transfered from the instruction selector to the code generator, and at the context that is used for the runtime call. R=titzer@chromium.org Review-Url: https://codereview.chromium.org/2562393002 Cr-Commit-Position: refs/heads/master@{#41720}
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- 06 Dec, 2016 1 commit
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gdeepti authored
R=bbudge@chromium.org, titzer@chromium.org Review-Url: https://codereview.chromium.org/2385393002 Cr-Commit-Position: refs/heads/master@{#41505}
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- 02 Dec, 2016 1 commit
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aseemgarg authored
BUG=v8:4124 TEST:test-run-wasm-simd-lowering R=bradnelson@chromium.org,titzer@chromium.org,mtrofin@chromium.org Review-Url: https://codereview.chromium.org/2498283002 Cr-Commit-Position: refs/heads/master@{#41443}
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- 01 Dec, 2016 1 commit
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bbudge authored
- These operations are identical for Float32x4 and Int32x4. - Make them generic, following the naming for generic Simd128 / S128 opcodes. - F32x4/I32x4 -> S32x4, similarly to S128 - Float32x4/Int32x4 -> Simd32x4, similarly to Simd128. LOG=N BUG=v8:4124 Review-Url: https://codereview.chromium.org/2543773002 Cr-Commit-Position: refs/heads/master@{#41437}
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- 26 Oct, 2016 2 commits
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aseemgarg authored
R=titzer@chromium.org,binji@chromium.org BUG=v8:4614 Review-Url: https://codereview.chromium.org/2423883003 Cr-Commit-Position: refs/heads/master@{#40606}
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titzer authored
R=ahaas@chromium.org,rossberg@chromium.org,binji@chromium.org,bradnelson@chromium.org BUG=chromium:575167, chromium:659591 Review-Url: https://codereview.chromium.org/2440953002 Cr-Commit-Position: refs/heads/master@{#40600}
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- 17 Oct, 2016 1 commit
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jochen authored
R=machenbach@chromium.org,titzer@chromium.org,bmeurer@chromium.org,jgruber@chromium.org BUG= CQ_INCLUDE_TRYBOTS=master.tryserver.v8:v8_win_dbg,v8_mac_dbg;master.tryserver.chromium.android:android_arm64_dbg_recipe Review-Url: https://codereview.chromium.org/2416243002 Cr-Commit-Position: refs/heads/master@{#40350}
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- 27 Sep, 2016 1 commit
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titzer authored
[0xC] Convert to stack machine semantics. [0xC] Use section codes instead of names. [0xC] Add elements section decoding. [0xC] Decoding of globals section. [0xC] Decoding of memory section. [0xC] Decoding of imports section. [0xC] Decoding of exports section. [0xC] Decoding of data section. [0xC] Remove CallImport bytecode. [0xC] Function bodies have an implicit block. [0xC] Remove the bottom label from loops. [0xC] Add signatures to blocks. [0xC] Remove arities from branches. Add tests for init expression decoding. Rework compilation of import wrappers and how they are patched. Rework function indices in debugging. Fix ASM->WASM builder for stack machine. Reorganize asm.js foreign functions due to import indices change. R=ahaas@chromium.org,rossberg@chromium.org,bradnelson@chromium.org BUG=chromium:575167 LOG=Y Committed: https://crrev.com/76eb976a67273b8c03c744f64ad850b0432554b9 Review-Url: https://codereview.chromium.org/2345593003 Cr-Original-Commit-Position: refs/heads/master@{#39678} Cr-Commit-Position: refs/heads/master@{#39795}
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- 23 Sep, 2016 2 commits
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machenbach authored
Revert of [wasm] Master CL for Binary 0xC changes. (patchset #26 id:490001 of https://codereview.chromium.org/2345593003/ ) Reason for revert: Main suspect for tsan: https://build.chromium.org/p/client.v8/builders/V8%20Linux64%20TSAN/builds/11893 Also changes layout tests: https://build.chromium.org/p/client.v8.fyi/builders/V8-Blink%20Linux%2064/builds/10036 +mips builder: https://build.chromium.org/p/client.v8.ports/builders/V8%20Mips%20-%20builder/builds/4032 Original issue's description: > [wasm] Master CL for Binary 0xC changes. > > [0xC] Convert to stack machine semantics. > [0xC] Use section codes instead of names. > [0xC] Add elements section decoding. > [0xC] Decoding of globals section. > [0xC] Decoding of memory section. > [0xC] Decoding of imports section. > [0xC] Decoding of exports section. > [0xC] Decoding of data section. > [0xC] Remove CallImport bytecode. > [0xC] Function bodies have an implicit block. > [0xC] Remove the bottom label from loops. > [0xC] Add signatures to blocks. > [0xC] Remove arities from branches. > Add tests for init expression decoding. > Rework compilation of import wrappers and how they are patched. > Rework function indices in debugging. > Fix ASM->WASM builder for stack machine. > Reorganize asm.js foreign functions due to import indices change. > > R=ahaas@chromium.org,rossberg@chromium.org,bradnelson@chromium.org > BUG=chromium:575167 > LOG=Y > > Committed: https://crrev.com/76eb976a67273b8c03c744f64ad850b0432554b9 > Cr-Commit-Position: refs/heads/master@{#39678} TBR=ahaas@chromium.org,bradnelson@chromium.org,mtrofin@chromium.org,rossberg@chromium.org,bradnelson@google.com,titzer@chromium.org # Skipping CQ checks because original CL landed less than 1 days ago. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=chromium:575167 Review-Url: https://codereview.chromium.org/2361053004 Cr-Commit-Position: refs/heads/master@{#39685}
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titzer authored
[0xC] Convert to stack machine semantics. [0xC] Use section codes instead of names. [0xC] Add elements section decoding. [0xC] Decoding of globals section. [0xC] Decoding of memory section. [0xC] Decoding of imports section. [0xC] Decoding of exports section. [0xC] Decoding of data section. [0xC] Remove CallImport bytecode. [0xC] Function bodies have an implicit block. [0xC] Remove the bottom label from loops. [0xC] Add signatures to blocks. [0xC] Remove arities from branches. Add tests for init expression decoding. Rework compilation of import wrappers and how they are patched. Rework function indices in debugging. Fix ASM->WASM builder for stack machine. Reorganize asm.js foreign functions due to import indices change. R=ahaas@chromium.org,rossberg@chromium.org,bradnelson@chromium.org BUG=chromium:575167 LOG=Y Review-Url: https://codereview.chromium.org/2345593003 Cr-Commit-Position: refs/heads/master@{#39678}
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- 13 Sep, 2016 1 commit
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jpp authored
The initial support for low level exception handling in Wasm will not support finally blocks. This decision is taken for both simplicity ( handling finallys is not straightforward if we want try blocks to yield values), and lack of good use case (clang++ does not need them.) They may be added in the future once we understand the implications of having them. BUG= Review-Url: https://codereview.chromium.org/2336303002 Cr-Commit-Position: refs/heads/master@{#39393}
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- 12 Sep, 2016 1 commit
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ahaas authored
With this CL the AstDecoder produces an error if it encounters a grow_memory instruction in an asmjs module. Additionally asmjs instructions are not allowed anymore in wasm modules. BUG=chromium:644674 R=titzer@chromium.org Review-Url: https://codereview.chromium.org/2324733002 Cr-Commit-Position: refs/heads/master@{#39339}
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