RFR(XS): fix c2-only compilation and some tests

Vladimir Kozlov vladimir.kozlov at oracle.com
Tue Jul 31 05:24:19 UTC 2018


I hit several issues in testing.

1. Build failures on SPARC because of missing include:

make/hotspot/src/native/dtrace/generateJvmOffsets.cpp
@@ -40,6 +40,7 @@

  #include <proc_service.h>
  #include "gc/shared/collectedHeap.hpp"
+#include "memory/heap.hpp"
  #include "runtime/vmStructs.hpp"

  typedef enum GEN_variant {

2. Several tests failed because they want -XX:+TieredCompilation. Currently there is no check

vmTestbase/jit/tiered/TestDescription.java

test/hotspot/jtreg/vmTestbase/jit/tiered/tieredTest.sh	Mon Jul 30 21:48:51 2018 -0700
@@ -46,6 +46,11 @@
      exit 0
  fi

+if grep "TieredCompilation not supported in this VM" $log; then
+    echo "TEST PASSED: Non-tiered Server VM. The test is useless"
+    exit 0
+fi
+
  if ! egrep '^[0-9.]+: \[compile level=[0-9]' $log; then
      if [ "${tiered}" == "on" ]; then
          echo "TEST FAILED: No PrintTieredEvents output"

compiler/tiered/ConstantGettersTransitionsTest.java (change assert to check) - run with -ea -esa

compiler/onSpinWait/TestOnSpinWait.java (add skipOnTieredCompilation() check to skip C1 test)

There is also closed test failed because it uses C1 flag - need to add 
-XX:+IgnoreUnrecognizedVMOptions (it is work for us in Oracle).

serviceability/sa/ClhsdbFindPC.java (I don't know how to fix it yet)

Vladimir


On 7/30/18 6:19 PM, Vladimir Kozlov wrote:
> I started our tier1-3 testing with --with-jvm-features=-compiler1 build.
> 
> Regards,
> Vladimir
> 
> On 7/30/18 3:03 PM, Liu Xin wrote:
>> hi, list,
>>
>> We also submitted to the submit repo and ran it successfully.
>>
>> I am not sure if it runs in the special configuration. This document doesn't say anything about 
>> configurations.
>> https://wiki.openjdk.java.net/display/Build/Submit+Repo
>>
>> thanks,
>> --lx
>>
>>
>> On Mon, Jul 30, 2018 at 2:41 PM, Liu Xin <navy.xliu at gmail.com <mailto:navy.xliu at gmail.com>> wrote:
>>
>>     hi, mail-list,
>>
>>     Could you kindly review this patch?
>>     Because the patch is from Vladimir,  we might need another reviewer to approve it.
>>
>>     Problem: JDK-8207965
>>     Webrev: http://cr.openjdk.java.net/~phh/8207965/webrev.01/
>>     <http://cr.openjdk.java.net/~phh/8207965/webrev.01/>
>>
>>     I passed the hotspot-tier1 on x86-64 with the following configuration:
>>     --with-debug-level=fastdebug --with-jvm-features=-compiler1,zgc
>>
>>     thanks,
>>     --lx
>>
>>
>>     On Fri, Jul 27, 2018 at 5:27 PM, Liu Xin <navy.xliu at gmail.com <mailto:navy.xliu at gmail.com>> 
>> wrote:
>>
>>         hi, Vladimir,
>>         thank for the patch.  I will verify it locally.
>>         I will take a look at ZGC.
>>
>>         thanks,
>>         --lx
>>
>>
>>         On Fri, Jul 27, 2018 at 5:19 PM, Vladimir Kozlov <vladimir.kozlov at oracle.com
>>         <mailto:vladimir.kozlov at oracle.com>> wrote:
>>
>>             Hi Liu
>>
>>             I looked on it again and you are right. Method::_aot_code is defined and used only in
>>             tiered case.
>>
>>             But changes should be next:
>>             1. The assert is needed for case when aot code is used.
>>             2. AOTCompiledMethod::make_entrant() is used only in Tiered (add #ifdef guard).
>>             3. #ifdef DirectivesStack::init() should check INCLUDE_JVMCI
>>             4. Missing changes for ZGC.
>>             5. In TestMeetIncompatibleInterfaceArrays.java skip test with C1 compilation request
>>             when Tiered is off.
>>
>>             Thanks,
>>             Vladimir
>>
>>
>>             diff -r 2ce72467c4e8 src/hotspot/share/aot/aotCodeHeap.cpp
>>             --- a/src/hotspot/share/aot/aotCodeHeap.cpp
>>             +++ b/src/hotspot/share/aot/aotCodeHeap.cpp
>>             @@ -714,7 +714,7 @@
>>               void AOTCodeHeap::sweep_method(AOTCompiledMethod *aot) {
>>                 int indexes[] = {aot->method_index()};
>>                 sweep_dependent_methods(indexes, 1);
>>             -  vmassert(aot->method()->code() != aot && aot->method()->aot_code() == NULL, "method
>>             still active");
>>             +  vmassert(aot->method()->code() != aot TIERED_ONLY( && aot->method()->aot_code() ==
>>             NULL), "method still active");
>>               }
>>
>>
>>             diff -r 2ce72467c4e8 src/hotspot/share/aot/aotCompiledMethod.cpp
>>             --- a/src/hotspot/share/aot/aotCompiledMethod.cpp
>>             +++ b/src/hotspot/share/aot/aotCompiledMethod.cpp
>>             @@ -206,6 +206,7 @@
>>                 return true;
>>               }
>>
>>             +#ifdef TIERED
>>               bool AOTCompiledMethod::make_entrant() {
>>                 assert(!method()->is_old(), "reviving evolved method!");
>>                 assert(*_state_adr != not_entrant, "%s", method()->has_aot_code() ? "has_aot_code()
>>             not cleared" : "caller didn't check has_aot_code()");
>>             @@ -240,6 +241,7 @@
>>
>>                 return true;
>>               }
>>             +#endif // TIERED
>>
>>               // We don't have full dependencies for AOT methods, so flushing is
>>               // more conservative than for nmethods.
>>             diff -r 2ce72467c4e8 src/hotspot/share/aot/aotCompiledMethod.hpp
>>             --- a/src/hotspot/share/aot/aotCompiledMethod.hpp
>>             +++ b/src/hotspot/share/aot/aotCompiledMethod.hpp
>>             @@ -194,7 +194,7 @@
>>                 virtual address verified_entry_point() const { return _code +
>>             _meta->verified_entry_offset(); }
>>                 virtual void log_identity(xmlStream* stream) const;
>>                 virtual void log_state_change() const;
>>             -  virtual bool make_entrant();
>>             +  virtual bool make_entrant() NOT_TIERED({ ShouldNotReachHere(); return false; });
>>                 virtual bool make_not_entrant() { return make_not_entrant_helper(not_entrant); }
>>                 virtual bool make_not_used() { return make_not_entrant_helper(not_used); }
>>                 virtual address entry_point() const { return _code + _meta->entry_offset(); }
>>             diff -r 2ce72467c4e8 src/hotspot/share/compiler/compilerDirectives.cpp
>>             --- a/src/hotspot/share/compiler/compilerDirectives.cpp
>>             +++ b/src/hotspot/share/compiler/compilerDirectives.cpp
>>             @@ -442,7 +442,7 @@
>>                 char str[] = "*.*";
>>                 const char* error_msg = NULL;
>>                 _default_directives->add_match(str, error_msg);
>>             -#ifdef COMPILER1
>>             +#if defined(COMPILER1) || INCLUDE_JVMCI
>>                 _default_directives->_c1_store->EnableOption = true;
>>               #endif
>>               #ifdef COMPILER2
>>             diff -r 2ce72467c4e8 src/hotspot/share/gc/z/zBarrierSet.cpp
>>             --- a/src/hotspot/share/gc/z/zBarrierSet.cpp
>>             +++ b/src/hotspot/share/gc/z/zBarrierSet.cpp
>>             @@ -22,8 +22,12 @@
>>                */
>>
>>               #include "precompiled.hpp"
>>             +#ifdef COMPILER1
>>               #include "gc/z/c1/zBarrierSetC1.hpp"
>>             +#endif
>>             +#ifdef COMPILER2
>>               #include "gc/z/c2/zBarrierSetC2.hpp"
>>             +#endif
>>               #include "gc/z/zBarrierSet.hpp"
>>               #include "gc/z/zBarrierSetAssembler.hpp"
>>               #include "gc/z/zGlobals.hpp"
>>             @@ -33,8 +37,8 @@
>>
>>               ZBarrierSet::ZBarrierSet() :
>>                   BarrierSet(make_barrier_set_assembler<ZBarrierSetAssembler>(),
>>             -               make_barrier_set_c1<ZBarrierSetC1>(),
>>             -               make_barrier_set_c2<ZBarrierSetC2>(),
>>             +               COMPILER1_PRESENT( make_barrier_set_c1<ZBarrierSetC1>() )
>>             NOT_COMPILER1(NULL),
>>             +               COMPILER2_PRESENT( make_barrier_set_c2<ZBarrierSetC2>() )
>>             NOT_COMPILER2(NULL),
>>                              BarrierSet::FakeRtti(BarrierSet::ZBarrierSet)) {}
>>
>>               ZBarrierSetAssembler* ZBarrierSet::assembler() {
>>             diff -r 2ce72467c4e8
>>             test/hotspot/jtreg/compiler/types/TestMeetIncompatibleInterfaceArrays.java
>>             --- a/test/hotspot/jtreg/compiler/types/TestMeetIncompatibleInterfaceArrays.java
>>             +++ b/test/hotspot/jtreg/compiler/types/TestMeetIncompatibleInterfaceArrays.java
>>             @@ -362,6 +362,12 @@
>>                                   System.out.println((j + 1) + ". invokation of " + baseClassName +
>>             i + "ASM.test() [::" +
>>                                                      r.getName() + "() should be '" + tier[pass][j]
>>             + "' compiled]");
>>
>>             +                    // Skip Profiling compilation (C1) when Tiered is disabled.
>>             +                    boolean profile = (level[pass][j] ==
>>             CompilerWhiteBoxTest.COMP_LEVEL_FULL_PROFILE);
>>             +                    if (profile && 
>> CompilerWhiteBoxTest.skipOnTieredCompilation(false)) {
>>             +                        continue;
>>             +                    }
>>             +
>>                                   WB.enqueueMethodForCompilation(r, level[pass][j]);
>>
>>                                   try {
>>
>>             On 7/26/18 1:11 PM, Liu Xin wrote:
>>
>>                 hi, Vladimir,
>>
>>                 Thank you for replying.
>>
>>                 If I disable compiler1, I will run into compiler errors when I build fastdebug. The
>>                 attachment is the output.
>>                 Even if ignore the assertion, we still have problem to pass hs-tier1. it will crash
>>                 when it try to use jvmci.
>>
>>                 Here is my configuration:
>>                 The existing configuration has been successfully updated in
>>                 /Users/xxinliu/Devel/openjdk/jdk/build/macosx-x86_64-normal-server-fastdebug
>>                 using configure arguments '--enable-option-checking=fatal
>>                 --with-debug-level=fastdebug --with-jtreg=/Users/xxinliu/Devel/jtreg
>>                 --with-jvm-features=-compiler1'.
>>
>>                 Configuration summary:
>>                 * Debug level:    fastdebug
>>                 * HS debug level: fastdebug
>>                 * JVM variants:   server
>>                 * JVM features:   server: 'aot cds cmsgc compiler2 dtrace epsilongc g1gc graal jfr
>>                 jni-check jvmci jvmti management nmt parallelgc serialgc services vm-structs'
>>                 * OpenJDK target: OS: macosx, CPU architecture: x86, address length: 64
>>                 * Version string: 12-internal+0-adhoc.xxinliu.jdk (12-internal)
>>
>>                 thanks,
>>                 --lx
>>
>>                 On Thu, Jul 26, 2018 at 12:48 PM, Vladimir Kozlov <vladimir.kozlov at oracle.com
>>                 <mailto:vladimir.kozlov at oracle.com> <mailto:vladimir.kozlov at oracle.com
>>                 <mailto:vladimir.kozlov at oracle.com>>> wrote:
>>
>>                      This does not seems right. What failure you got in aotCodeHeap.cpp and
>>                 aotCompiledMethod.cpp?
>>
>>                      Thanks,
>>                      Vladimir
>>
>>                      On 7/26/18 10:16 AM, Liu Xin wrote:
>>
>>                          Hi, hotspot community,
>>
>>
>>                          Please review the small change to getc2-onlybuild to work.
>>
>>                          Bug:https://bugs.openjdk.java.net/browse/JDK-8207965
>>                 <https://bugs.openjdk.java.net/browse/JDK-8207965>
>>                 <https://bugs.openjdk.java.net/browse/JDK-8207965
>>                 <https://bugs.openjdk.java.net/browse/JDK-8207965>>
>>
>>                          Webrev: http://cr.openjdk.java.net/~phh/8207965/webrev.00/
>>                 <http://cr.openjdk.java.net/~phh/8207965/webrev.00/>
>>                          <http://cr.openjdk.java.net/%7Ephh/8207965/webrev.00/
>>                 <http://cr.openjdk.java.net/%7Ephh/8207965/webrev.00/>>
>>                 <http://cr.openjdk.java.net/%7Ephh/8207965/webrev.00/
>>                 <http://cr.openjdk.java.net/%7Ephh/8207965/webrev.00/>
>>
>>                          <http://cr.openjdk.java.net/%7Ephh/8207965/webrev.00/
>>                 <http://cr.openjdk.java.net/%7Ephh/8207965/webrev.00/>>>
>>
>>                          It will meet 2 compiler errors if you configure project with “./configure
>>                 --with-jvm-features=-compiler1
>>                          --enable-option-checking=fatal --with-debug-level=fastdebug”.
>>
>>                          the configure disable c1. Furthermore,  12 failures in hs-tier1 if we
>>                 havec2-only.
>>
>>
>>                          C2-onlybuilt met the following errors when I ran hs-tier1:
>>
>>                          compiler/aot/cli/jaotc/CompileClassWithDebugTest.java: check that jaotc can
>>                 compile a class with a --debug flag
>>                          compiler/jvmci/compilerToVM/IsCompilableTest.java:
>>                          compiler/jvmci/events/JvmciNotifyBootstrapFinishedEventTest.java:
>>                          compiler/jvmci/events/JvmciNotifyInstallEventTest.java:
>>                          
>> compiler/jvmci/jdk.vm.ci.code.test/src/jdk/vm/ci/code/test/DataPatchTest.java:
>>                 
>> compiler/jvmci/jdk.vm.ci.code.test/src/jdk/vm/ci/code/test/MaxOopMapStackOffsetTest.java:
>>                          
>> compiler/jvmci/jdk.vm.ci.code.test/src/jdk/vm/ci/code/test/NativeCallTest.java:
>>                 
>> compiler/jvmci/jdk.vm.ci.code.test/src/jdk/vm/ci/code/test/SimpleCodeInstallationTest.java:
>>                 compiler/jvmci/jdk.vm.ci.code.test/src/jdk/vm/ci/code/test/SimpleDebugInfoTest.java:
>>                 
>> compiler/jvmci/jdk.vm.ci.code.test/src/jdk/vm/ci/code/test/VirtualObjectDebugInfoTest.java:
>>                          compiler/types/TestMeetIncompatibleInterfaceArrays.java: C2 can not handle
>>                 returns with incompatible interface
>>                          arrays
>>
>>                          Most due to bug similar withJDK-8145331
>>                 <https://bugs.openjdk.java.net/browse/JDK-8145331
>>                 <https://bugs.openjdk.java.net/browse/JDK-8145331>
>>                          <https://bugs.openjdk.java.net/browse/JDK-8145331
>>                 <https://bugs.openjdk.java.net/browse/JDK-8145331>>>.
>>
>>
>>                          CompilerDirectives::get_for(AbstractCompiler *comp)  returns _/c1/_store
>>
>>                             if jvmci() enabled, but hotspot won’t enable it if COMPILER1 is
>>                 disabled. As a result, hotspot messes up
>>                          refcounts of _c1_store. This webrev fixes 11 out of 12 cases.
>>
>>
>>                          The last test (compiler/types/TestMeetIncompatibleInterfaceArrays.java)
>>                 makes use of WhiteBox to check tier
>>                          levels. I can’t fix it easily. Shall I try to fix it in this webrev? If no,
>>                 we can file a new bug to fix the
>>                          test. Does anyone have any idea how to fix it?
>>
>>
>>                          thanks,
>>
>>                          --lx
>>
>>
>>
>>
>>
>>


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