A value in unittests/Bytecodes.DecodeBytecodeAndOperands was 16 bit
instead of 8 bit. This was causing test to fail on big endian machines.
BUG=
Review-Url: https://codereview.chromium.org/2030063002
Cr-Commit-Position: refs/heads/master@{#36698}
A few values were missing use of a macro causing test to fail on big
endian machines.
BUG=
Review-Url: https://codereview.chromium.org/2024123002
Cr-Commit-Position: refs/heads/master@{#36645}
This change introduces a pipeline for the final stages of
bytecode generation.
The peephole optimizer is made distinct from the BytecodeArrayBuilder.
A new BytecodeArrayWriter is responsible for writing bytecode. It
also keeps track of the maximum register seen and offers a potentially
smaller frame size.
R=rmcilroy@chromium.org
LOG=N
BUG=v8:4280
Review-Url: https://codereview.chromium.org/1947403002
Cr-Commit-Position: refs/heads/master@{#36220}
Reason for revert:
Need to fix the #undef logic.
Original issue's description:
> Fix interpreter unittest for embedded constant pools.
>
> The offset from fp to the register file is based on the frame size
> -- which is one slot larger when embedded constant pools are enabled.
>
> TEST=unittests/DecodeBytecodeAndOperands
> R=rmcilroy@chromium.org, bmeurer@chromium.org, oth@chromium.org, mstarzinger@chromium.org
> BUG=
TBR=bmeurer@chromium.org,mstarzinger@chromium.org,oth@chromium.org,rmcilroy@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=
Review URL: https://codereview.chromium.org/1909323003
Cr-Commit-Position: refs/heads/master@{#35736}
Removes the register file machine register from the interpreter and
replaces it will loads from the parent frame pointer. As part of this
change the raw operand values for register values changes to enable the
interpreter to keep using the operand value as the offset from the
parent frame pointer.
BUG=v8:4280
LOG=N
Review URL: https://codereview.chromium.org/1894063002
Cr-Commit-Position: refs/heads/master@{#35618}
Operand values in Bytecodes.DecodeBytecodeAndOperands test are encoded
in little endian format. The test calls Bytecodes::Decode function which
reads the operands but the values are byte swapped on big endian
machines. Added big endian encoded data which decodes correctly on BE
machines.
BUG=
Review URL: https://codereview.chromium.org/1881423002
Cr-Commit-Position: refs/heads/master@{#35447}
Anotates bytecodes with a description of how each uses the accumulator.
Validates annotations and uses of accumulator when generating bytecode
handlers.
Only prints the accumulator during tracing where used.
BUG=v8:4280
LOG=N
Review URL: https://codereview.chromium.org/1852213002
Cr-Commit-Position: refs/heads/master@{#35281}
This change introduces wide prefix bytecodes to support wide (16-bit)
and extra-wide (32-bit) operands. It retires the previous
wide-bytecodes and reduces the number of operand types.
Operands are now either scalable or fixed size. Scalable operands
increase in width when a bytecode is prefixed with wide or extra-wide.
The bytecode handler table is extended to 256*3 entries. The
first 256 entries are used for bytecodes with 8-bit operands,
the second 256 entries are used for bytecodes with operands that
scale to 16-bits, and the third group of 256 entries are used for
bytecodes with operands that scale to 32-bits.
LOG=N
BUG=v8:4747,v8:4280
Review URL: https://codereview.chromium.org/1783483002
Cr-Commit-Position: refs/heads/master@{#34955}
This replaces the bytecode in question with a runtime call within the
bytecode stream. The tradeoff is to safe one bytecode opcode for more
expensive encoding of lookup slot deletion.
R=rmcilroy@chromium.org
Review URL: https://codereview.chromium.org/1690913002
Cr-Commit-Position: refs/heads/master@{#33907}
Introduces the concept of transfer direction to register operands. This
enables the register translator to emit exactly the moves that a
bytecode having it's register operands translated needs.
BUG=v8:4280,v8:4675
LOG=N
Review URL: https://codereview.chromium.org/1633153002
Cr-Commit-Position: refs/heads/master@{#33544}
This increases the size of register operands to be 16-bit.
Not all bytecodes have wide register variants, so when they are
needed a register translator will copy them into a small area
reserved at the top of the 8-bit register range and these registers
are supplied as arguments to the bytecode with 8-bit operands.
This is non-intrusive for typical bytecode where the number of
registers is less than 120. For bytecodes with wide register
operands (above the window) their index needs to be translated
to avoid the reserved translation window.
Enables splay.js to run in Octane and a handful of mjsunit tests.
BUG=v8:4280,v8:4675
LOG=NO
Review URL: https://codereview.chromium.org/1613163002
Cr-Commit-Position: refs/heads/master@{#33516}
New bytecodes for making registers with indicies wider than 1-byte
accessible.
BUG=v8:4280
LOG=N
Review URL: https://codereview.chromium.org/1555713002
Cr-Commit-Position: refs/heads/master@{#33091}
The comparison operators and ToBoolean are implemented by calling into
the runtime. There are new runtime methods are prefixed with Interpreter
to make use case clear.
BUG=v8:4280
LOG=N
Review URL: https://codereview.chromium.org/1369123002
Cr-Commit-Position: refs/heads/master@{#30983}
Add methods for converting parameter index to a register and vice-versa.
Move Register class into bytecodes.h.
Update Bytecodes::Decode to pretty print parameters.
BUG=v8:4280
LOG=NO
Review URL: https://codereview.chromium.org/1325983002
Cr-Commit-Position: refs/heads/master@{#30549}
