azalea/kotlin-fork
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Optimize constant conditions

Browse Source 
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).
This commit is contained in:
Dmitry Petrov
2017-05-12 15:22:52 +03:00
parent 495fba43c0
commit 2051355d6a
8 changed files with 372 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files
compiler/tests/org/jetbrains/kotlin/codegen/BytecodeTextTestGenerated.java
+33
View File
@@ -885,6 +885,39 @@ public class BytecodeTextTestGenerated extends AbstractBytecodeTextTest {
}
}
@TestMetadata("compiler/testData/codegen/bytecodeText/constantConditions")
@TestDataPath("$PROJECT_ROOT")
@RunWith(JUnit3RunnerWithInners.class)
public static class ConstantConditions extends AbstractBytecodeTextTest {
public void testAllFilesPresentInConstantConditions() throws Exception {
KotlinTestUtils.assertAllTestsPresentByMetadata(this.getClass(), new File("compiler/testData/codegen/bytecodeText/constantConditions"), Pattern.compile("^(.+)\\.kt$"), TargetBackend.ANY, true);
}
@TestMetadata("cmpIntWith0.kt")
public void testCmpIntWith0() throws Exception {
String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/bytecodeText/constantConditions/cmpIntWith0.kt");
doTest(fileName);
}
@TestMetadata("constantFlag.kt")
public void testConstantFlag() throws Exception {
String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/bytecodeText/constantConditions/constantFlag.kt");
doTest(fileName);
}
@TestMetadata("constantInt.kt")
public void testConstantInt() throws Exception {
String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/bytecodeText/constantConditions/constantInt.kt");
doTest(fileName);
}
@TestMetadata("kt3098.kt")
public void testKt3098() throws Exception {
String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/bytecodeText/constantConditions/kt3098.kt");
doTest(fileName);
}
}
@TestMetadata("compiler/testData/codegen/bytecodeText/constants")
@TestDataPath("$PROJECT_ROOT")
@RunWith(JUnit3RunnerWithInners.class)