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2051355d6a
Using basic constant propagation (only integer constants, no arithmetic calculations), rewrite conditional jump instructions with constant arguments. This covers problem description in KT-17007. Note that it also works transparently with inline functions. Partial evaluation is required to cover more "advanced" cases. As a side effect, this also covers KT-3098: rewrite IF_ICMP<cmp_op>(x, 0) to IF<cmp0_op>(x).
58 lines
1.0 KiB
Kotlin
Vendored
58 lines
1.0 KiB
Kotlin
Vendored
// FILE: util.kt
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const val MAGIC = 42
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fun doStuffEq() {}
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fun doStuffNotEq() {}
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fun doStuffLt() {}
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fun doStuffLe() {}
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fun doStuffGt() {}
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fun doStuffGe() {}
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inline fun doStuffIfEq(i: Int) {
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if (i == MAGIC) doStuffEq()
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}
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inline fun doStuffIfNotEq(i: Int) {
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if (i != MAGIC) doStuffNotEq()
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}
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inline fun doStuffIfLt(i: Int) {
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if (i < MAGIC) doStuffLt()
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}
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inline fun doStuffIfLe(i: Int) {
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if (i <= MAGIC) doStuffLe()
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}
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inline fun doStuffIfGt(i: Int) {
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if (i > MAGIC) doStuffGt()
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}
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inline fun doStuffIfGe(i: Int) {
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if (i >= MAGIC) doStuffGe()
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}
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// FILE: test.kt
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fun test() {
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doStuffIfEq(100)
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doStuffIfNotEq(100)
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doStuffIfLt(100)
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doStuffIfLe(100)
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doStuffIfGt(100)
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doStuffIfGe(100)
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}
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// @TestKt.class:
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// 0 INVOKESTATIC UtilKt.doStuffEq
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// 1 INVOKESTATIC UtilKt.doStuffNotEq
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// 0 INVOKESTATIC UtilKt.doStuffLt
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// 0 INVOKESTATIC UtilKt.doStuffLe
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// 1 INVOKESTATIC UtilKt.doStuffGt
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// 1 INVOKESTATIC UtilKt.doStuffGe
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// 0 ILOAD 0
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// 0 IFEQ
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// 0 IFNE
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// 0 IFLT
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// 0 IFLE
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// 0 IFGE
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// 0 IFGT |