T

Konstantin Anisimov 0cd4512dd5 CODEGEN: Support for "null" constant implemented

for code:
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> cat ../backend.native/tests/codegen/basics/null_check.kt
//--- Test "eqeq" -------------------------------------------------------------//

fun check_eqeq(a: Any?) = a == null

fun null_check_eqeq1() : Boolean {
  return check_eqeq(Any())
}

fun null_check_eqeq2() : Boolean {
  return check_eqeq(null)
}

//--- Test "eqeqeq" -----------------------------------------------------------//

fun check_eqeqeq(a: Any?) = a === null

fun null_check_eqeqeq1() : Boolean {
  return check_eqeqeq(Any())
}

fun null_check_eqeqeq2() : Boolean {
  return check_eqeqeq(null)
}

--------8<--------

code generator produces, following code:

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> llvm-dis-mp-3.8 ../backend.native/tests/codegen/basics/null_check.kt.bc -o -
; ModuleID = '../backend.native/tests/codegen/basics/null_check.kt.bc'
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.12.0"
...
define i1 @"kfun:check_eqeq(Any?)"(i8*) {
entry:
  %a = alloca i8*
  store i8* %0, i8** %a
  %tmp_1 = load i8*, i8** %a
  %tmp_3 = alloca i1
  %tmp_4 = icmp eq i8* %tmp_1, null
  br i1 %tmp_4, label %label_1, label %label_0

label_0:                                          ; preds = %entry
  %tmp_7 = bitcast i8* %tmp_1 to i8**
  %tmp_8 = load i8*, i8** %tmp_7
  %tmp_9 = bitcast i8* %tmp_8 to %struct.TypeInfo*
  %tmp_10 = call i8* @LookupOpenMethod(%struct.TypeInfo* %tmp_9, i64 5922905592022884074)
  %tmp_11 = bitcast i8* %tmp_10 to i1 (i8*, i8*)*
  %tmp_6 = call i1 %tmp_11(i8* %tmp_1, i8* null)
  store i1 %tmp_6, i1* %tmp_3
  br label %label_2

label_1:                                          ; preds = %entry
  %tmp_5 = icmp eq i8* %tmp_1, null
  store i1 %tmp_5, i1* %tmp_3
  br label %label_2

label_2:                                          ; preds = %label_1, %label_0
  %tmp_0 = load i1, i1* %tmp_3
  ret i1 %tmp_0
}

define i1 @"kfun:null_check_eqeq1()"() {
entry:
  %tmp_1 = call i8* @AllocInstance(%struct.TypeInfo* @"ktype:kotlin.Any", i32 1)
  %tmp_11 = call i8* @"kfun:kotlin.Any.<init>()"(i8* %tmp_1)
  %tmp_0 = call i1 @"kfun:check_eqeq(Any?)"(i8* %tmp_11)
  ret i1 %tmp_0
}

declare i8* @"kfun:kotlin.Any.<init>()"(i8*)

define i1 @"kfun:null_check_eqeq2()"() {
entry:
  %tmp_0 = call i1 @"kfun:check_eqeq(Any?)"(i8* null)
  ret i1 %tmp_0
}

define i1 @"kfun:check_eqeqeq(Any?)"(i8*) {
entry:
  %a = alloca i8*
  store i8* %0, i8** %a
  %tmp_1 = load i8*, i8** %a
  %tmp_0 = icmp eq i8* %tmp_1, null
  ret i1 %tmp_0
}

define i1 @"kfun:null_check_eqeqeq1()"() {
entry:
  %tmp_1 = call i8* @AllocInstance(%struct.TypeInfo* @"ktype:kotlin.Any", i32 1)
  %tmp_11 = call i8* @"kfun:kotlin.Any.<init>()"(i8* %tmp_1)
  %tmp_0 = call i1 @"kfun:check_eqeqeq(Any?)"(i8* %tmp_11)
  ret i1 %tmp_0
}

define i1 @"kfun:null_check_eqeqeq2()"() {
entry:
  %tmp_0 = call i1 @"kfun:check_eqeqeq(Any?)"(i8* null)
  ret i1 %tmp_0
}
...
--------8<--------

2016-11-21 21:08:36 +03:00

backend.native

CODEGEN: Support for "null" constant implemented

2016-11-21 21:08:36 +03:00

buildSrc

Introduced shims for LLVM StubGenerator.

2016-11-16 02:07:51 +04:00

common

Implement Base64 without need of JDK8. (#78 )

2016-11-21 10:42:49 +03:00

dependencies

build: make clang using gcc toolchain on Linux