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psi2ir: Optimize generated data class members

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- Access underlying fields directly, instead of using accessors. This is
  safe since data classes are always final.
- Don't generate a temporary variable in hashCode to use as the
  accumulator.

Both optimizations are effectively present in the current JVM backend
and with these changes the generated code is much closer to what the
current backend generates.
This commit is contained in:
Steven Schäfer
2019-09-16 17:24:59 +02:00
committed by Alexander Udalov
parent 7ccf314808
commit 76ab631214
9 changed files with 538 additions and 668 deletions
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compiler/testData/ir/irText/classes/inlineClass.txt
Vendored
+9 -13
View File
@@ -26,22 +26,18 @@ FILE fqName:<root> fileName:/inlineClass.kt
STRING_CONCATENATION type=kotlin.String
CONST String type=kotlin.String value="Test("
CONST String type=kotlin.String value="x="
CALL 'public final fun <get-x> (): kotlin.Int declared in <root>.Test' type=kotlin.Int origin=GET_PROPERTY
$this: GET_VAR '<this>: <root>.Test declared in <root>.Test.toString' type=<root>.Test origin=null
GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:x type:kotlin.Int visibility:private [final]' type=kotlin.Int origin=null
receiver: GET_VAR '<this>: <root>.Test declared in <root>.Test.toString' type=<root>.Test origin=null
CONST String type=kotlin.String value=")"
FUN GENERATED_INLINE_CLASS_MEMBER name:hashCode visibility:public modality:OPEN <> ($this:<root>.Test) returnType:kotlin.Int
overridden:
public open fun hashCode (): kotlin.Int declared in kotlin.Any
$this: VALUE_PARAMETER name:<this> type:<root>.Test
BLOCK_BODY
VAR IR_TEMPORARY_VARIABLE name:tmp0_result type:kotlin.Int [var]
CONST Int type=kotlin.Int value=0
SET_VAR 'var tmp0_result: kotlin.Int [var] declared in <root>.Test.hashCode' type=kotlin.Unit origin=EQ
CALL 'public open fun hashCode (): kotlin.Int declared in kotlin.Int' type=kotlin.Int origin=null
$this: CALL 'public final fun <get-x> (): kotlin.Int declared in <root>.Test' type=kotlin.Int origin=GET_PROPERTY
$this: GET_VAR '<this>: <root>.Test declared in <root>.Test.hashCode' type=<root>.Test origin=null
RETURN type=kotlin.Nothing from='public open fun hashCode (): kotlin.Int declared in <root>.Test'
GET_VAR 'var tmp0_result: kotlin.Int [var] declared in <root>.Test.hashCode' type=kotlin.Int origin=null
CALL 'public open fun hashCode (): kotlin.Int declared in kotlin.Int' type=kotlin.Int origin=null
$this: GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:x type:kotlin.Int visibility:private [final]' type=kotlin.Int origin=null
receiver: GET_VAR '<this>: <root>.Test declared in <root>.Test.hashCode' type=<root>.Test origin=null
FUN GENERATED_INLINE_CLASS_MEMBER name:equals visibility:public modality:OPEN <> ($this:<root>.Test, other:kotlin.Any?) returnType:kotlin.Boolean
overridden:
public open fun equals (other: kotlin.Any?): kotlin.Boolean declared in kotlin.Any
@@ -61,10 +57,10 @@ FILE fqName:<root> fileName:/inlineClass.kt
BRANCH
if: CALL 'public final fun not (): kotlin.Boolean declared in kotlin.Boolean' type=kotlin.Boolean origin=EXCLEQ
$this: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EXCLEQ
arg0: CALL 'public final fun <get-x> (): kotlin.Int declared in <root>.Test' type=kotlin.Int origin=GET_PROPERTY
$this: GET_VAR '<this>: <root>.Test declared in <root>.Test.equals' type=<root>.Test origin=null
arg1: CALL 'public final fun <get-x> (): kotlin.Int declared in <root>.Test' type=kotlin.Int origin=GET_PROPERTY
$this: GET_VAR 'val tmp0_other_with_cast: <root>.Test [val] declared in <root>.Test.equals' type=<root>.Test origin=null
arg0: GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:x type:kotlin.Int visibility:private [final]' type=kotlin.Int origin=null
receiver: GET_VAR '<this>: <root>.Test declared in <root>.Test.equals' type=<root>.Test origin=null
arg1: GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:x type:kotlin.Int visibility:private [final]' type=kotlin.Int origin=null
receiver: GET_VAR 'val tmp0_other_with_cast: <root>.Test [val] declared in <root>.Test.equals' type=<root>.Test origin=null
then: RETURN type=kotlin.Nothing from='public open fun equals (other: kotlin.Any?): kotlin.Boolean declared in <root>.Test'
CONST Boolean type=kotlin.Boolean value=false
RETURN type=kotlin.Nothing from='public open fun equals (other: kotlin.Any?): kotlin.Boolean declared in <root>.Test'