jaotc: org.graalvm.compiler.graph.GraalGraphError

[tianxiaogu]

A generated class (C0.class) triggers the following GraalGraphError by simply invoking jaotc --output C0.so C0.class.

Error: Failed compilation: C0.M0([CLC0;[Ljava/lang/Comparable;[B[Ljava/lang/Double;[FF[Ljava/lang/Short;LC0;)F: \
        org.graalvm.compiler.graph.GraalGraphError: \
        org.graalvm.compiler.debug.GraalError: \
        NormalizeCompareNode connected to \
        org.graalvm.compiler.nodes.calc.IntegerBelowNode$BelowOp@77b378be (int[16777215|0xffffff] 20|NormalizeCompare false)
	        at node: 125||<|

The error may be caused by fcmp. In the generated method M0, a fcmp pushed an int on the stack, which is further used as the operand of the following anewarray.

[dougxc]

I cannot reproduce this issue:

dsimon@freddy /m/p/U/d/Downloads> java -version
java version "9"
Java(TM) SE Runtime Environment (build 9+181)
Java HotSpot(TM) 64-Bit Server VM (build 9+181, mixed mode)
dsimon@freddy /m/p/U/d/Downloads> jaotc --output C0.so C0.class
dsimon@freddy /m/p/U/d/Downloads> java -XX:AOTLibrary=./C0.so C0
dsimon@freddy /m/p/U/d/Downloads>

Which JDK 9 version are you using?

[tianxiaogu]

Hi Doug, I am sorry for not providing the version info.
The exception is triggered in the head of JDK.
I filed an issue here since the exception (GraalGraphError) seems to belong to the graal project.

$ ./openjdk/jdk/build/linux-x86_64-normal-server-release/jdk/bin/java --version
openjdk 10-internal 2018-03-20
OpenJDK Runtime Environment (build 10-internal+0-adhoc.t.jdk)
OpenJDK 64-Bit Server VM (build 10-internal+0-adhoc.t.jdk, mixed mode)

[axel22]

This should be fixed in the next version of jaotc:

6ef1baa