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[FIR] Capture array and indices for postfix/prefix increment/decrement

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of array element (including overloaded indexed access operators, e.g.,
`a[b, c]++`).

This prevents double-evaluation of the array and indices expressions,
which may have side-effects.
This commit is contained in:
Mark Punzalan
2020-09-30 07:14:46 +00:00
committed by teamcityserver
parent eb631bc429
commit a2a4d94834
22 changed files with 441 additions and 160 deletions
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compiler/testData/ir/irText/expressions/arrayAugmentedAssignment1.fir.txt
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+13 -10
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@@ -77,16 +77,19 @@ FILE fqName:<root> fileName:/arrayAugmentedAssignment1.kt
FUN name:testMember visibility:public modality:FINAL <> (c:<root>.C) returnType:kotlin.Unit
VALUE_PARAMETER name:c index:0 type:<root>.C
BLOCK_BODY
VAR IR_TEMPORARY_VARIABLE name:tmp_4 type:kotlin.Int [val]
CALL 'public final fun get (index: kotlin.Int): kotlin.Int [operator] declared in kotlin.IntArray' type=kotlin.Int origin=null
$this: CALL 'public final fun <get-x> (): kotlin.IntArray declared in <root>.C' type=kotlin.IntArray origin=GET_PROPERTY
$this: GET_VAR 'c: <root>.C declared in <root>.testMember' type=<root>.C origin=null
index: CONST Int type=kotlin.Int value=0
CALL 'public final fun set (index: kotlin.Int, value: kotlin.Int): kotlin.Unit [operator] declared in kotlin.IntArray' type=kotlin.Unit origin=null
$this: CALL 'public final fun <get-x> (): kotlin.IntArray declared in <root>.C' type=kotlin.IntArray origin=GET_PROPERTY
VAR IR_TEMPORARY_VARIABLE name:tmp_4 type:kotlin.IntArray [val]
CALL 'public final fun <get-x> (): kotlin.IntArray declared in <root>.C' type=kotlin.IntArray origin=GET_PROPERTY
$this: GET_VAR 'c: <root>.C declared in <root>.testMember' type=<root>.C origin=null
index: CONST Int type=kotlin.Int value=0
VAR IR_TEMPORARY_VARIABLE name:tmp_5 type:kotlin.Int [val]
CONST Int type=kotlin.Int value=0
VAR IR_TEMPORARY_VARIABLE name:tmp_6 type:kotlin.Int [val]
CALL 'public final fun get (index: kotlin.Int): kotlin.Int [operator] declared in kotlin.IntArray' type=kotlin.Int origin=null
$this: GET_VAR 'val tmp_4: kotlin.IntArray [val] declared in <root>.testMember' type=kotlin.IntArray origin=null
index: GET_VAR 'val tmp_5: kotlin.Int [val] declared in <root>.testMember' type=kotlin.Int origin=null
CALL 'public final fun set (index: kotlin.Int, value: kotlin.Int): kotlin.Unit [operator] declared in kotlin.IntArray' type=kotlin.Unit origin=null
$this: GET_VAR 'val tmp_4: kotlin.IntArray [val] declared in <root>.testMember' type=kotlin.IntArray origin=null
index: GET_VAR 'val tmp_5: kotlin.Int [val] declared in <root>.testMember' type=kotlin.Int origin=null
value: CALL 'public final fun inc (): kotlin.Int [operator] declared in kotlin.Int' type=kotlin.Int origin=null
$this: GET_VAR 'val tmp_4: kotlin.Int [val] declared in <root>.testMember' type=kotlin.Int origin=null
$this: GET_VAR 'val tmp_6: kotlin.Int [val] declared in <root>.testMember' type=kotlin.Int origin=null
TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
GET_VAR 'val tmp_4: kotlin.Int [val] declared in <root>.testMember' type=kotlin.Int origin=null
GET_VAR 'val tmp_6: kotlin.Int [val] declared in <root>.testMember' type=kotlin.Int origin=null