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From "Irina Arkhipets (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-1840) [drlvm][jit] Jitrino JET crashes when returnAddress is on the top of the stack before astore or astore_<n> instruction
Date Thu, 12 Oct 2006 10:05:34 GMT
[drlvm][jit] Jitrino JET crashes when returnAddress is on the top of the stack before astore
or astore_<n> instruction
----------------------------------------------------------------------------------------------------------------------

                 Key: HARMONY-1840
                 URL: http://issues.apache.org/jira/browse/HARMONY-1840
             Project: Harmony
          Issue Type: Bug
          Components: VM
         Environment: Windows IA-32, Linux IA-32
            Reporter: Irina Arkhipets


J2SE VM Specification reads about astore_<n> instruction:
...
The <n> must be a valid index into the local variables of the current frame (ยง3.6).
The objectref on the top of the operand stack must be of type returnAddress or of type reference.
It is popped from the operand stack, and the value of the local variable at <n> is set
to objectref.
...

However, Jitrino JET crashes when the value on the top of the stack is returnAddress.

The following test example crashes with Jitrino JET both on Linux IA-32 and Windows IA-32
with  `jsr_lead == pc' assertion.
Stack trace shows that the problem is in the JET code (please, see sample output below).

--------- test.j ---------
.class public test
.super java/lang/Object

.method public <init>()V
    aload_0
    invokespecial java/lang/Object/<init>()V
    return
.end method

.method public static main([Ljava/lang/String;)V
    .limit stack 10
    .limit locals 10
    new test
    dup
    invokespecial test/<init>()V
    invokevirtual test/tryme()V
    return
.end method

.method public tryme()V
    jsr L1
    nop
L1:
    astore_0

    return
.end method
-----------------------------

This test passes with JRockit and interpreter.
This test fails in OPT mode with another error diagnostic, I am going to file a separate bug
about this.

Sample output is:
...
java: /export/users2/iarkhipe/20061012/trunk/working_vm/vm/jitrino/src/jet/compiler.cpp:873:
bool Jitrino::Jet::Compiler::comp_gen_insts(unsigned int, unsigned int, unsigned int): Assertion
`jsr_lead == pc' failed.
SIGABRT in VM code.
Stack trace:
        1: ?? (??:-1)
        2: abort (??:-1)
        3: __assert_fail (??:-1)
        4: Jitrino::Jet::Compiler::comp_gen_insts(unsigned int, unsigned int, unsigned int)
(/export/users2/iarkhipe/20061012/trunk/working_vm/vm/jitrino/src/jet/compiler.cpp:875)
        5: Jitrino::Jet::Compiler::comp_gen_code_bb(unsigned int) (/export/users2/iarkhipe/20061012/trunk/working_vm/vm/jitrino/src/jet/compiler.cpp:817)
        6: Jitrino::Jet::Compiler::compile(void*, Method*, OpenMethodExecutionParams const&)
(/export/users2/iarkhipe/20061012/trunk/working_vm/vm/jitrino/src/jet/compiler.cpp:389)
        7: Jitrino::Jet::compile_with_params(void*, void*, Method*, OpenMethodExecutionParams)
(/export/users2/iarkhipe/20061012/trunk/working_vm/vm/jitrino/src/jet/jet.cpp:508)
        8: JIT_compile_method_with_params (/export/users2/iarkhipe/20061012/trunk/working_vm/vm/jitrino/src/vm/drl/DrlJITInterface.cpp:277)
        9: Dll_JIT::compile_method_with_params(void*, Method*, OpenMethodExecutionParams)
(/export/users2/iarkhipe/20061012/trunk/working_vm/vm/vmcore/include/dll_jit_intf.h:86)
        10: compile_do_compilation_jit(Method*, JIT*) (/export/users2/iarkhipe/20061012/trunk/working_vm/vm/vmcore/src/jit/compile.cpp:700)
        11: vm_compile_method (/export/users2/iarkhipe/20061012/trunk/working_vm/vm/vmcore/src/class_support/C_Interface.cpp:2538)
        12: DrlEMImpl::compileMethod(Method*) (/export/users2/iarkhipe/20061012/trunk/working_vm/vm/em/src/DrlEMImpl.cpp:520)
        13: CompileMethod (/export/users2/iarkhipe/20061012/trunk/working_vm/vm/em/src/em_intf.cpp:49)
        14: compile_do_compilation (/export/users2/iarkhipe/20061012/trunk/working_vm/vm/vmcore/src/jit/compile.cpp:780)
        15: compile_jit_a_method(Method*) (/export/users2/iarkhipe/20061012/trunk/working_vm/vm/vmcore/src/jit/compile.cpp:828)
        16: IP is 0x410D0172 <native code>
        17: test.main([Ljava/lang/String;)V (test.j:-1)
        18: vm_invoke_native_array_stub (/export/users2/iarkhipe/20061012/trunk/working_vm/vm/vmcore/src/util/ia32/base/invoke_native_stub_ia32.asm:41)
        19: JIT_execute_method_default(void*, _jmethodID*, jvalue*, jvalue*) (/export/users2/iarkhipe/20061012/trunk/working_vm/vm/vmcore/src/util/ia32/base/ini_iA32.cpp:199)
        20: DrlEMImpl::executeMethod(_jmethodID*, jvalue*, jvalue*) (/export/users2/iarkhipe/20061012/trunk/working_vm/vm/em/src/DrlEMImpl.cpp:489)
        21: ExecuteMethod (/export/users2/iarkhipe/20061012/trunk/working_vm/vm/em/src/em_intf.cpp:43)
        22: vm_execute_java_method_array(_jmethodID*, jvalue*, jvalue*) (/export/users2/iarkhipe/20061012/trunk/working_vm/vm/vmcore/src/jit/ini.cpp:58)
        23: call_static_method_no_ref_result (/export/users2/iarkhipe/20061012/trunk/working_vm/vm/vmcore/src/jni/jni_method.cpp:1072)
        24: CallStaticVoidMethodA(JNIEnv_External*, _jobject*, _jmethodID*, jvalue*) (/export/users2/iarkhipe/20061012/trunk/working_vm/vm/vmcore/src/jni/jni_method.cpp:1450)
        25: CallStaticVoidMethodV(JNIEnv_External*, _jobject*, _jmethodID*, char*) (/export/users2/iarkhipe/20061012/trunk/working_vm/vm/vmcore/src/jni/jni_method.cpp:1437)
        26: CallStaticVoidMethod(JNIEnv_External*, _jobject*, _jmethodID*, ...) (/export/users2/iarkhipe/20061012/trunk/working_vm/vm/vmcore/src/jni/jni_method.cpp:1427)
        27: ?? (??:-1)
        28: ?? (??:-1)
        29: ?? (??:-1)
        30: ?? (??:-1)
        31: hysig_protect (??:-1)
        32: ?? (??:-1)
        33: __libc_start_main (??:-1)
        34: ?? (??:-1)
<end of stack trace>
Aborted
...


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