BUG=

Review URL: https://codereview.chromium.org/1627263002

Cr-Commit-Position: refs/heads/master@{#33797}

BUG=

Review URL: https://codereview.chromium.org/1628133002

Cr-Commit-Position: refs/heads/master@{#33796}

Implement the optional turbofan operators Word32Ctz, Word64Ctz, Word32Popcnt and Word64Popcnt.

BUG=

Review URL: https://codereview.chromium.org/1588383002

Cr-Commit-Position: refs/heads/master@{#33555}

The new operator converts an int32 input to float32. If the input cannot
be represented exactly in float32, the value is rounded using the
round-ties-even rounding mode (the default rounding mode).

I provide implementations of the new operator for x64, ia32, arm, arm64,
mips, mips64, ppc, and ppc64.

R=titzer@chromium.org, v8-arm-ports@googlegroups.com, v8-mips-ports@googlegroups.com, v8-ppc-ports@googlegroups.com

Review URL: https://codereview.chromium.org/1589363002

Cr-Commit-Position: refs/heads/master@{#33347}

The new operator converts a float32 input to int32 through truncation.
I provide implementations of the new operator for x64, ia32, arm,
arm64, mips, mips64, and x87. @v8-ppc-ports, can you please take care
of the ppc implementation?

R=titzer@chromium.org, v8-arm-ports@googlegroups.com, v8-mips-ports@googlegroups.com, weiliang.lin@intel.com

Review URL: https://codereview.chromium.org/1583323004

Cr-Commit-Position: refs/heads/master@{#33346}

R=bmeurer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1578723002

Cr-Commit-Position: refs/heads/master@{#33202}

Review URL: https://codereview.chromium.org/1544743004

Cr-Commit-Position: refs/heads/master@{#33039}

Review URL: https://codereview.chromium.org/1542093002

Cr-Commit-Position: refs/heads/master@{#33011}

On ia32 the code which pushes parameters on the stack depends on the
types of the parameters which are to be pushed. I provide this type
information now by not only passing parameter nodes to
EmitPrepareArguments, but also the index in the call descriptor which
belongs to the parameter nodes.

This type information will also be necessary if we want to use the
PokePair instruction on arm64 again.

R=bradnelson@chromium.org, bmeurer@chromium.org

Review URL: https://codereview.chromium.org/1534593004

Cr-Commit-Position: refs/heads/master@{#32982}

TEST=unittests/InstructionSelectorTest.CombineChangeFloat32ToInt32WithRoundFloat32,
     ChangeFloat64ToInt32OfChangeFloat32ToFloat64, TruncateFloat64ToFloat32OfChangeInt32ToFloat64
BUG=

Review URL: https://codereview.chromium.org/1520503002

Cr-Commit-Position: refs/heads/master@{#32969}

Review URL: https://codereview.chromium.org/1513383003

Cr-Commit-Position: refs/heads/master@{#32803}

TryTruncateFloat32ToUint64 converts a float32 to a uint64. Additionally it
provides an optional second return value which indicates whether the conversion
succeeded (i.e. float32 value was within uint64 range) or not.

I implemented the new operator on x64, arm64, and mips64. @v8-ppc-ports, can you
please take care of the ppc64 implementation of the second output?

Additionally I fixed a bug on x64 and mips64 in the implementation of
TryTruncateFloat64ToUint64. Cases where the input value was between -1 and 0
were handled incorrectly.

R=titzer@chromium.org, v8-arm-ports@googlegroups.com, v8-mips-ports@googlegroups.com

Review URL: https://codereview.chromium.org/1512023002

Cr-Commit-Position: refs/heads/master@{#32796}

MachineType is now a class with two enum fields:
- MachineRepresentation
- MachineSemantic

Both enums are usable on their own, and this change switches some places from using MachineType to use just MachineRepresentation. Most notably:
- register allocator now uses just the representation.
- Phi and Select nodes only refer to representations.

Review URL: https://codereview.chromium.org/1513543003

Cr-Commit-Position: refs/heads/master@{#32738}

This operator now provides a second output which indicates whether the
conversion from float32 to int64 was successful or not. The second output
returns 0 if the conversion fails, or something else if the conversion succeeds.

The second output can be ignored, which means that the operator can be used the
same as the original operator.

I implement the new operator on x64, arm64, and mips64. @v8-ppc-ports, can you
please take care of the ppc64 implementation of the second output?

R=titzer@chromium.org, v8-arm-ports@googlegroups.com, v8-mips-ports@googlegroups.com

Review URL: https://codereview.chromium.org/1504363002

Cr-Commit-Position: refs/heads/master@{#32737}

This operator now provides a second output which indicates whether the conversion from float64 to uint64 was successful or not. The second output returns 0 if the conversion fails, or something else if the conversion succeeds.

The second output can be ignored, which means that the operator can be used the same as the original operator.

I implement the new operator on x64 and arm64. @v8-mips-ports and @v8-ppc-ports, can you please take care of the mips64 and ppc64 implementation of the second output?

R=titzer@chromium.org, v8-arm-ports@googlegroups.com

Review URL: https://codereview.chromium.org/1507703002

Cr-Commit-Position: refs/heads/master@{#32705}

TEST=
BUG=

Review URL: https://codereview.chromium.org/1503053002

Cr-Commit-Position: refs/heads/master@{#32685}

TEST=unittests/InstructionSlectorTest.CombineChangeFloat64ToInt32WithRoundFloat64
BUG=

Review URL: https://codereview.chromium.org/1510493002

Cr-Commit-Position: refs/heads/master@{#32668}

Port 95844d94

Original commit message:
The new operator provides a second output which indicates whether the
conversion from float64 to int64 was successful or not. The second
output returns 0 if the conversion fails. If the conversion succeeds,
then the second output is differs from 0.

The second output can be ignored, which means that the operator can be
used the same way as the original operator.

I implemented the new operator on x64 and arm64. @v8-mips-ports and
@v8-ppc-ports, can you please take care of the mips64 and ppc64
implementation of the second output?

BUG=
TEST=cctest/test-run-machops/RunTryTruncateFloat64ToInt64WithCheck

Review URL: https://codereview.chromium.org/1503173002

Cr-Commit-Position: refs/heads/master@{#32664}

The new operator provides a second output which indicates whether the
conversion from float64 to int64 was successful or not. The second
output returns 0 if the conversion fails. If the conversion succeeds,
then the second output is differs from 0.

The second output can be ignored, which means that the operator can be
used the same way as the original operator.

I implemented the new operator on x64 and arm64. @v8-mips-ports and
@v8-ppc-ports, can you please take care of the mips64 and ppc64
implementation of the second output?

R=titzer@chromium.org, v8-arm-ports@googlegroups.com

Review URL: https://codereview.chromium.org/1495213003

Cr-Commit-Position: refs/heads/master@{#32653}

TEST=unittests/InstructionSelectorTest.Word(32|64)ShlWithWord(32|64)And
BUG=

Review URL: https://codereview.chromium.org/1496013003

Cr-Commit-Position: refs/heads/master@{#32612}

TEST=unittests/InstructionSelectorTest.Word(32|64)AndToClearBits
BUG=

Review URL: https://codereview.chromium.org/1485023004

Cr-Commit-Position: refs/heads/master@{#32479}

Xori instruction can only have unisgned 16-bit immediates for right input,
as such it is not suitable for bit negation on mips.

TEST=unittests/InstructionSecetorTest.Word(32|64)XorMinusOneWithParameter
BUG=

Review URL: https://codereview.chromium.org/1485833003

Cr-Commit-Position: refs/heads/master@{#32478}

TEST=
BUG=

Review URL: https://codereview.chromium.org/1483973002

Cr-Commit-Position: refs/heads/master@{#32465}

Port 68cc0be2

Original commit message:
The TruncateFloat32ToUint64 operator converts a float32 to an uint64 using
round-to-zero rounding mode. If the input value is outside uint64 range, then
the result depends on the architecture. I provide an implementation for x64 and
arm64.

BUG=

Review URL: https://codereview.chromium.org/1481093003

Cr-Commit-Position: refs/heads/master@{#32383}

The TruncateFloat32ToUint64 operator converts a float32 to an uint64 using
round-to-zero rounding mode. If the input value is outside uint64 range, then
the result depends on the architecture. I provide an implementation for x64 and
arm64.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/1479713003

Cr-Commit-Position: refs/heads/master@{#32379}

TEST=
BUG=

Review URL: https://codereview.chromium.org/1477043004

Cr-Commit-Position: refs/heads/master@{#32347}

The TruncateFloat32ToInt64 operator converts a float32 to an int64 using
the round-to-zero rounding mode (truncate). If the input value is
outside the int64 range, then the result depends on the architecture. I
implemented the operator on x64, arm64, and mips64.

R=titzer@chromium.org, jacob.bramley@arm.com

Committed: https://crrev.com/1df1066c3c77464d2a68d7c8d501a5a0f3ad195a
Cr-Commit-Position: refs/heads/master@{#32315}

Review URL: https://codereview.chromium.org/1476063002

Cr-Commit-Position: refs/heads/master@{#32325}

Revert of [turbofan] Implemented the TruncateFloat32ToInt64 TurboFan operator. (patchset #1 id:1 of https://codereview.chromium.org/1476063002/ )

Reason for revert:
Unexpected error occurred.

Original issue's description:
> [turbofan] Implemented the TruncateFloat32ToInt64 TurboFan operator.
>
> The TruncateFloat32ToInt64 operator converts a float32 to an int64 using
> the round-to-zero rounding mode (truncate). If the input value is
> outside the int64 range, then the result depends on the architecture. I
> implemented the operator on x64, arm64, and mips64.
>
> R=titzer@chromium.org, jacob.bramley@arm.com
>
> Committed: https://crrev.com/1df1066c3c77464d2a68d7c8d501a5a0f3ad195a
> Cr-Commit-Position: refs/heads/master@{#32315}

TBR=jacob.bramley@arm.com,titzer@chromium.org,v8-mips-ports@googlegroups.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1475343002

Cr-Commit-Position: refs/heads/master@{#32316}

The TruncateFloat32ToInt64 operator converts a float32 to an int64 using
the round-to-zero rounding mode (truncate). If the input value is
outside the int64 range, then the result depends on the architecture. I
implemented the operator on x64, arm64, and mips64.

R=titzer@chromium.org, jacob.bramley@arm.com

Review URL: https://codereview.chromium.org/1476063002

Cr-Commit-Position: refs/heads/master@{#32315}

The Float32RoundTiesEven operator rounds float32 numbers towards the nearest
integer. If the distance to two integers is the same, then the result is
the even integer. This is the default rounding mode of the ieee 754 floating
point standard.

I implemented the optional Float32RoundTiesEven operator on x64, ia32, arm, and arm64.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/1477753002

Cr-Commit-Position: refs/heads/master@{#32308}

The Float32RoundTruncate operator rounds float32 numbers towards zero.
The operator is currently implemented on x64, ia32, arm, and arm64.

Additionally I added support for the float32 vrintz, vrintn, and vrinta
instructions to the arm simulator.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/1468303005

Cr-Commit-Position: refs/heads/master@{#32301}

The Float32RoundUp operator rounds float32 numbers towards infinity.
The operator is currently implemented on x64, ia32, arm, and arm64.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/1474963002

Cr-Commit-Position: refs/heads/master@{#32262}

I implemented the optional Float32RoundDown operator on x64, ia32, arm,
and arm64.

For arm I also had to adjust the simulator.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/1471913006

Cr-Commit-Position: refs/heads/master@{#32261}

TEST=unittests/InstructionSelectorTest.Word32XorMinusOneWithWord32Or,
     Word64XorMinusOneWithWord64Or
BUG=

Review URL: https://codereview.chromium.org/1459723002

Cr-Commit-Position: refs/heads/master@{#32149}

Port f6e689ce

BUG=

Review URL: https://codereview.chromium.org/1463193002

Cr-Commit-Position: refs/heads/master@{#32147}

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/1458423002

Cr-Commit-Position: refs/heads/master@{#32139}

The TruncateFloat64ToUint64 operator converts a float64 to an uint64 using
round-to-zero rounding mode (truncate). If the input value is outside uint64
range, then the result depends on the architecture. I provide an implementation for x64 and arm64.

@v8-ppc-ports and @v8-mips-ports, can you do the implementations for ppc64 and mips64?

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/1457373002

Cr-Commit-Position: refs/heads/master@{#32127}

The ChangeFloat64ToInt64 operator changes the representation of a
float64 input value to int64 if the input value can be represented
exactly on int64. Otherwise the result is currently undefined.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/1455983002

Cr-Commit-Position: refs/heads/master@{#32102}

TEST=unittests/InstructionSelectorTest/Word32ShrWithWord32AndWithImmediate,
     Word32AndWithImmediateWithWord32Shr, Word64AndWithImmediateWithWord64Shr,
     Word64AndWithImmediateWithWord64Shr
BUG=

Review URL: https://codereview.chromium.org/1457523002

Cr-Commit-Position: refs/heads/master@{#32062}

TEST=unittests/InstructionSelectorTest.CombineShiftsWithMul,
     InstructionSelectorTest.CombineShiftsWithDivMod
BUG=

Review URL: https://codereview.chromium.org/1444423002

Cr-Commit-Position: refs/heads/master@{#32061}