Leslie Zhai via llvm-dev
2018-Jul-20 02:07 UTC
[llvm-dev] error: ordered comparison between pointer and zero ('address' (aka 'unsigned char *') and 'int')
Hi Thomas, Thanks for your kind response! Please review my backport for hs25, thanks a lot! diff -r 3544d85cfe11 src/share/vm/opto/lcm.cpp --- a/src/share/vm/opto/lcm.cpp Thu Jul 19 10:00:36 2018 +0100 +++ b/src/share/vm/opto/lcm.cpp Fri Jul 20 10:06:37 2018 +0800 @@ -49,7 +49,7 @@ // Check whether val is not-null-decoded compressed oop, // i.e. will grab into the base of the heap if it represents NULL. static bool accesses_heap_base_zone(Node *val) { - if (Universe::narrow_oop_base() > 0) { // Implies UseCompressedOops. + if (Universe::narrow_oop_base() != NULL) { // Implies UseCompressedOops. if (val && val->is_Mach()) { if (val->as_Mach()->ideal_Opcode() == Op_DecodeN) { // This assumes all Decodes with TypePtr::NotNull are matched to nodes that diff -r 3544d85cfe11 src/share/vm/opto/loopPredicate.cpp --- a/src/share/vm/opto/loopPredicate.cpp Thu Jul 19 10:00:36 2018 +0100 +++ b/src/share/vm/opto/loopPredicate.cpp Fri Jul 20 10:06:37 2018 +0800 @@ -869,7 +869,7 @@ Node* idx = cmp->in(1); assert(!invar.is_invariant(idx), "index is variant"); Node* rng = cmp->in(2); - assert(rng->Opcode() == Op_LoadRange || _igvn.type(rng)->is_int() >= 0, "must be"); + assert(rng->Opcode() == Op_LoadRange || _igvn.type(rng)->is_int()->_lo >= 0, "must be"); assert(invar.is_invariant(rng), "range must be invariant"); int scale = 1; Node* offset = zero; diff -r 3544d85cfe11 src/share/vm/runtime/virtualspace.cpp --- a/src/share/vm/runtime/virtualspace.cpp Thu Jul 19 10:00:36 2018 +0100 +++ b/src/share/vm/runtime/virtualspace.cpp Fri Jul 20 10:06:37 2018 +0800 @@ -342,7 +342,7 @@ (UseCompressedOops && (Universe::narrow_oop_base() != NULL) && Universe::narrow_oop_use_implicit_null_checks()) ? lcm(os::vm_page_size(), alignment) : 0) { - if (base() > 0) { + if (base() != NULL) { MemTracker::record_virtual_memory_type((address)base(), mtJavaHeap); } 在 2018年07月19日 19:37, Thomas Schatzl 写道:> Hi, > > On Thu, 2018-07-19 at 18:56 +0800, Leslie Zhai wrote: >> Hi HotSpot and LLVM developers, >> >> I am building OpenJDK8[1] with LLVM toolchain[2] for mips64el, it >> failed to build: >> >> >> /home/loongson/jdk8-mips/hotspot/src/share/vm/opto/lcm.cpp:52:35: >> error: >> ordered comparison between pointer and zero ('address' (aka >> 'unsigned >> char *') and 'int') >> if (Universe::narrow_oop_base() > 0) { // Implies >> UseCompressedOops. >> ~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~ >> >> >> Just like compiling Linux kernel with LLVM for mips64el[3], the bug >> could be fixed both in Compiler side and HotSpot side, please give >> me some suggestion, thanks a lot! And my sincere thanks will go to >> Nick who helped me a lot! > this has been fixed in the jvm in JDK10 with https://bugs.openjdk.jav > a.net/browse/JDK-8174050 . > > It has not been backported to jdk8; others may be able to tell you if > it can/will be backported. > > Thanks, > Thomas > >> 1. http://hg.loongnix.org/ >> 2. Loongson clang version 7.0.0 >> (git at github.com:Loong-Language/loong-clang.git >> c36069cffc57a30a20782bf327a87bed4e48a6c2) >> (git at github.com:Loong-Language/loong-llvm.git >> 59cb663e72874dda740aa2b18bf47ba65b32fe9b) (based on LLVM 7.0.0svn) >> Target: mips64el-redhat-linux >> Thread model: posix >> InstalledDir: /opt/loong-llvm/bin >> Found candidate GCC installation: /usr/lib/gcc/mips64el-redhat- >> linux/4.9.3 >> Selected GCC installation: /usr/lib/gcc/mips64el-redhat-linux/4.9.3 >> Candidate multilib: .; >> Selected multilib: .; >> 3. http://lists.llvm.org/pipermail/llvm-dev/2018-July/124620.html >>-- Regards, Leslie Zhai
Thomas Schatzl via llvm-dev
2018-Jul-23 15:49 UTC
[llvm-dev] error: ordered comparison between pointer and zero ('address' (aka 'unsigned char *') and 'int')
Hi Leslie, On Fri, 2018-07-20 at 10:07 +0800, Leslie Zhai wrote:> Hi Thomas, > > Thanks for your kind response! > > Please review my backport for hs25, thanks a lot! >I can't review the second hunk because it is out of my area of expertise and it does not look a trivial change either. The other hunks look good. Somebody else more proficient with the compiler needs to look at this. The further process for 8u fixes is then to send a request for approval email to jdk8u-dev at openjdk.java.net with some information about the original bug and this review; see e.g. http://mail.openjdk.java.net/pip ermail/jdk8u-dev/2018-July/007708.html for an example. If you need a sponsor, I could do that for you after approval (I am onjdk8u-dev, so I would notice :) ). Thanks, Thomas> > > diff -r 3544d85cfe11 src/share/vm/opto/lcm.cpp > --- a/src/share/vm/opto/lcm.cpp Thu Jul 19 10:00:36 2018 +0100 > +++ b/src/share/vm/opto/lcm.cpp Fri Jul 20 10:06:37 2018 +0800 > @@ -49,7 +49,7 @@ > // Check whether val is not-null-decoded compressed oop, > // i.e. will grab into the base of the heap if it represents NULL. > static bool accesses_heap_base_zone(Node *val) { > - if (Universe::narrow_oop_base() > 0) { // Implies > UseCompressedOops. > + if (Universe::narrow_oop_base() != NULL) { // Implies > UseCompressedOops. > if (val && val->is_Mach()) { > if (val->as_Mach()->ideal_Opcode() == Op_DecodeN) { > // This assumes all Decodes with TypePtr::NotNull are > matched > to nodes that > diff -r 3544d85cfe11 src/share/vm/opto/loopPredicate.cpp > --- a/src/share/vm/opto/loopPredicate.cpp Thu Jul 19 10:00:36 2018 > +0100 > +++ b/src/share/vm/opto/loopPredicate.cpp Fri Jul 20 10:06:37 2018 > +0800 > @@ -869,7 +869,7 @@ > Node* idx = cmp->in(1); > assert(!invar.is_invariant(idx), "index is variant"); > Node* rng = cmp->in(2); > - assert(rng->Opcode() == Op_LoadRange || _igvn.type(rng)- > >is_int() > >= 0, "must be"); > + assert(rng->Opcode() == Op_LoadRange || > _igvn.type(rng)->is_int()->_lo >= 0, "must be"); > assert(invar.is_invariant(rng), "range must be invariant"); > int scale = 1; > Node* offset = zero; > diff -r 3544d85cfe11 src/share/vm/runtime/virtualspace.cpp > --- a/src/share/vm/runtime/virtualspace.cpp Thu Jul 19 10:00:36 > 2018 > +0100 > +++ b/src/share/vm/runtime/virtualspace.cpp Fri Jul 20 10:06:37 > 2018 > +0800 > @@ -342,7 +342,7 @@ > (UseCompressedOops && (Universe::narrow_oop_base() > != > NULL) && > Universe::narrow_oop_use_implicit_null_checks()) ? > lcm(os::vm_page_size(), alignment) : 0) { > - if (base() > 0) { > + if (base() != NULL) { > MemTracker::record_virtual_memory_type((address)base(), > mtJavaHeap); > } > > > > > 在 2018年07月19日 19:37, Thomas Schatzl 写道: > > Hi, > > > > On Thu, 2018-07-19 at 18:56 +0800, Leslie Zhai wrote: > > > Hi HotSpot and LLVM developers, > > > > > > I am building OpenJDK8[1] with LLVM toolchain[2] for mips64el, it > > > failed to build: > > > > > > > > > /home/loongson/jdk8-mips/hotspot/src/share/vm/opto/lcm.cpp:52:35: > > > error: > > > ordered comparison between pointer and zero ('address' (aka > > > 'unsigned > > > char *') and 'int') > > > if (Universe::narrow_oop_base() > 0) { // Implies > > > UseCompressedOops. > > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~ > > > > > > > > > Just like compiling Linux kernel with LLVM for mips64el[3], the > > > bug > > > could be fixed both in Compiler side and HotSpot side, please > > > give > > > me some suggestion, thanks a lot! And my sincere thanks will go > > > to > > > Nick who helped me a lot! > > > > this has been fixed in the jvm in JDK10 with https://bugs.openjd > > k.jav > > a.net/browse/JDK-8174050 . > > > > It has not been backported to jdk8; others may be able to tell you > > if > > it can/will be backported. > > > > Thanks, > > Thomas > > > > > 1. http://hg.loongnix.org/ > > > 2. Loongson clang version 7.0.0 > > > (git at github.com:Loong-Language/loong-clang.git > > > c36069cffc57a30a20782bf327a87bed4e48a6c2) > > > (git at github.com:Loong-Language/loong-llvm.git > > > 59cb663e72874dda740aa2b18bf47ba65b32fe9b) (based on LLVM > > > 7.0.0svn) > > > Target: mips64el-redhat-linux > > > Thread model: posix > > > InstalledDir: /opt/loong-llvm/bin > > > Found candidate GCC installation: /usr/lib/gcc/mips64el-redhat- > > > linux/4.9.3 > > > Selected GCC installation: /usr/lib/gcc/mips64el-redhat- > > > linux/4.9.3 > > > Candidate multilib: .; > > > Selected multilib: .; > > > 3. http://lists.llvm.org/pipermail/llvm-dev/2018-July/124620.html > > > > >
Vladimir Kozlov via llvm-dev
2018-Jul-23 16:45 UTC
[llvm-dev] error: ordered comparison between pointer and zero ('address' (aka 'unsigned char *') and 'int')
Hi Thomas, Looks good. Your changes in loopPredicate.cpp does not match original changes - they miss iff->is_RangeCheck() check [1]. But in JDK8 we did not have specialized RangeCheckNode class in C2. Suggested fix should be fine fro jdk 8u. Reviewed. Please, when sending RFA ( approval request) use original 8174050 bug id. Thanks, Vladimir [1] http://hg.openjdk.java.net/jdk10/jdk10/hotspot/rev/316854ef2fa2 On 7/23/18 8:49 AM, Thomas Schatzl wrote:> Hi Leslie, > > On Fri, 2018-07-20 at 10:07 +0800, Leslie Zhai wrote: >> Hi Thomas, >> >> Thanks for your kind response! >> >> Please review my backport for hs25, thanks a lot! >> > > I can't review the second hunk because it is out of my area of > expertise and it does not look a trivial change either. The other hunks > look good. Somebody else more proficient with the compiler needs to > look at this. > > The further process for 8u fixes is then to send a request for approval > email to jdk8u-dev at openjdk.java.net with some information about the > original bug and this review; see e.g. http://mail.openjdk.java.net/pip > ermail/jdk8u-dev/2018-July/007708.html for an example. > > If you need a sponsor, I could do that for you after approval (I am onjdk8u-dev, so I would notice :) ). > > Thanks, > Thomas > >> >> >> diff -r 3544d85cfe11 src/share/vm/opto/lcm.cpp >> --- a/src/share/vm/opto/lcm.cpp Thu Jul 19 10:00:36 2018 +0100 >> +++ b/src/share/vm/opto/lcm.cpp Fri Jul 20 10:06:37 2018 +0800 >> @@ -49,7 +49,7 @@ >> // Check whether val is not-null-decoded compressed oop, >> // i.e. will grab into the base of the heap if it represents NULL. >> static bool accesses_heap_base_zone(Node *val) { >> - if (Universe::narrow_oop_base() > 0) { // Implies >> UseCompressedOops. >> + if (Universe::narrow_oop_base() != NULL) { // Implies >> UseCompressedOops. >> if (val && val->is_Mach()) { >> if (val->as_Mach()->ideal_Opcode() == Op_DecodeN) { >> // This assumes all Decodes with TypePtr::NotNull are >> matched >> to nodes that >> diff -r 3544d85cfe11 src/share/vm/opto/loopPredicate.cpp >> --- a/src/share/vm/opto/loopPredicate.cpp Thu Jul 19 10:00:36 2018 >> +0100 >> +++ b/src/share/vm/opto/loopPredicate.cpp Fri Jul 20 10:06:37 2018 >> +0800 >> @@ -869,7 +869,7 @@ >> Node* idx = cmp->in(1); >> assert(!invar.is_invariant(idx), "index is variant"); >> Node* rng = cmp->in(2); >> - assert(rng->Opcode() == Op_LoadRange || _igvn.type(rng)- >>> is_int() >> >= 0, "must be"); >> + assert(rng->Opcode() == Op_LoadRange || >> _igvn.type(rng)->is_int()->_lo >= 0, "must be"); >> assert(invar.is_invariant(rng), "range must be invariant"); >> int scale = 1; >> Node* offset = zero; >> diff -r 3544d85cfe11 src/share/vm/runtime/virtualspace.cpp >> --- a/src/share/vm/runtime/virtualspace.cpp Thu Jul 19 10:00:36 >> 2018 >> +0100 >> +++ b/src/share/vm/runtime/virtualspace.cpp Fri Jul 20 10:06:37 >> 2018 >> +0800 >> @@ -342,7 +342,7 @@ >> (UseCompressedOops && (Universe::narrow_oop_base() >> !>> NULL) && >> Universe::narrow_oop_use_implicit_null_checks()) ? >> lcm(os::vm_page_size(), alignment) : 0) { >> - if (base() > 0) { >> + if (base() != NULL) { >> MemTracker::record_virtual_memory_type((address)base(), >> mtJavaHeap); >> } >> >> >> >> >> 在 2018年07月19日 19:37, Thomas Schatzl 写道: >>> Hi, >>> >>> On Thu, 2018-07-19 at 18:56 +0800, Leslie Zhai wrote: >>>> Hi HotSpot and LLVM developers, >>>> >>>> I am building OpenJDK8[1] with LLVM toolchain[2] for mips64el, it >>>> failed to build: >>>> >>>> >>>> /home/loongson/jdk8-mips/hotspot/src/share/vm/opto/lcm.cpp:52:35: >>>> error: >>>> ordered comparison between pointer and zero ('address' (aka >>>> 'unsigned >>>> char *') and 'int') >>>> if (Universe::narrow_oop_base() > 0) { // Implies >>>> UseCompressedOops. >>>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~ >>>> >>>> >>>> Just like compiling Linux kernel with LLVM for mips64el[3], the >>>> bug >>>> could be fixed both in Compiler side and HotSpot side, please >>>> give >>>> me some suggestion, thanks a lot! And my sincere thanks will go >>>> to >>>> Nick who helped me a lot! >>> >>> this has been fixed in the jvm in JDK10 with https://bugs.openjd >>> k.jav >>> a.net/browse/JDK-8174050 . >>> >>> It has not been backported to jdk8; others may be able to tell you >>> if >>> it can/will be backported. >>> >>> Thanks, >>> Thomas >>> >>>> 1. http://hg.loongnix.org/ >>>> 2. Loongson clang version 7.0.0 >>>> (git at github.com:Loong-Language/loong-clang.git >>>> c36069cffc57a30a20782bf327a87bed4e48a6c2) >>>> (git at github.com:Loong-Language/loong-llvm.git >>>> 59cb663e72874dda740aa2b18bf47ba65b32fe9b) (based on LLVM >>>> 7.0.0svn) >>>> Target: mips64el-redhat-linux >>>> Thread model: posix >>>> InstalledDir: /opt/loong-llvm/bin >>>> Found candidate GCC installation: /usr/lib/gcc/mips64el-redhat- >>>> linux/4.9.3 >>>> Selected GCC installation: /usr/lib/gcc/mips64el-redhat- >>>> linux/4.9.3 >>>> Candidate multilib: .; >>>> Selected multilib: .; >>>> 3. http://lists.llvm.org/pipermail/llvm-dev/2018-July/124620.html >>>> >> >> >
Leslie Zhai via llvm-dev
2018-Jul-30 01:34 UTC
[llvm-dev] error: ordered comparison between pointer and zero ('address' (aka 'unsigned char *') and 'int')
Hi Thomas, Sorry for my late response! I just came back from vacation with my wife and child :) 在 2018年07月23日 23:49, Thomas Schatzl 写道:> Hi Leslie, > > On Fri, 2018-07-20 at 10:07 +0800, Leslie Zhai wrote: >> Hi Thomas, >> >> Thanks for your kind response! >> >> Please review my backport for hs25, thanks a lot! >> > I can't review the second hunk because it is out of my area of > expertise and it does not look a trivial change either. The other hunks > look good. Somebody else more proficient with the compiler needs to > look at this. > > The further process for 8u fixes is then to send a request for approval > email to jdk8u-dev at openjdk.java.net with some information about the > original bug and this review; see e.g. http://mail.openjdk.java.net/pip > ermail/jdk8u-dev/2018-July/007708.html for an example. > > If you need a sponsor, I could do that for you after approval (I am onjdk8u-dev, so I would notice :) ).Thanks for your teaching! I sent a RFA email to jdk8u-dev at openjdk.java.net with the information about the original bug and the review by following the example. Please sponsor it, thanks a lot! http://mail.openjdk.java.net/pipermail/jdk8u-dev/2018-July/007724.html> > Thanks, > Thomas > >> >> diff -r 3544d85cfe11 src/share/vm/opto/lcm.cpp >> --- a/src/share/vm/opto/lcm.cpp Thu Jul 19 10:00:36 2018 +0100 >> +++ b/src/share/vm/opto/lcm.cpp Fri Jul 20 10:06:37 2018 +0800 >> @@ -49,7 +49,7 @@ >> // Check whether val is not-null-decoded compressed oop, >> // i.e. will grab into the base of the heap if it represents NULL. >> static bool accesses_heap_base_zone(Node *val) { >> - if (Universe::narrow_oop_base() > 0) { // Implies >> UseCompressedOops. >> + if (Universe::narrow_oop_base() != NULL) { // Implies >> UseCompressedOops. >> if (val && val->is_Mach()) { >> if (val->as_Mach()->ideal_Opcode() == Op_DecodeN) { >> // This assumes all Decodes with TypePtr::NotNull are >> matched >> to nodes that >> diff -r 3544d85cfe11 src/share/vm/opto/loopPredicate.cpp >> --- a/src/share/vm/opto/loopPredicate.cpp Thu Jul 19 10:00:36 2018 >> +0100 >> +++ b/src/share/vm/opto/loopPredicate.cpp Fri Jul 20 10:06:37 2018 >> +0800 >> @@ -869,7 +869,7 @@ >> Node* idx = cmp->in(1); >> assert(!invar.is_invariant(idx), "index is variant"); >> Node* rng = cmp->in(2); >> - assert(rng->Opcode() == Op_LoadRange || _igvn.type(rng)- >>> is_int() >> >= 0, "must be"); >> + assert(rng->Opcode() == Op_LoadRange || >> _igvn.type(rng)->is_int()->_lo >= 0, "must be"); >> assert(invar.is_invariant(rng), "range must be invariant"); >> int scale = 1; >> Node* offset = zero; >> diff -r 3544d85cfe11 src/share/vm/runtime/virtualspace.cpp >> --- a/src/share/vm/runtime/virtualspace.cpp Thu Jul 19 10:00:36 >> 2018 >> +0100 >> +++ b/src/share/vm/runtime/virtualspace.cpp Fri Jul 20 10:06:37 >> 2018 >> +0800 >> @@ -342,7 +342,7 @@ >> (UseCompressedOops && (Universe::narrow_oop_base() >> !>> NULL) && >> Universe::narrow_oop_use_implicit_null_checks()) ? >> lcm(os::vm_page_size(), alignment) : 0) { >> - if (base() > 0) { >> + if (base() != NULL) { >> MemTracker::record_virtual_memory_type((address)base(), >> mtJavaHeap); >> } >> >> >> >> >> 在 2018年07月19日 19:37, Thomas Schatzl 写道: >>> Hi, >>> >>> On Thu, 2018-07-19 at 18:56 +0800, Leslie Zhai wrote: >>>> Hi HotSpot and LLVM developers, >>>> >>>> I am building OpenJDK8[1] with LLVM toolchain[2] for mips64el, it >>>> failed to build: >>>> >>>> >>>> /home/loongson/jdk8-mips/hotspot/src/share/vm/opto/lcm.cpp:52:35: >>>> error: >>>> ordered comparison between pointer and zero ('address' (aka >>>> 'unsigned >>>> char *') and 'int') >>>> if (Universe::narrow_oop_base() > 0) { // Implies >>>> UseCompressedOops. >>>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~ >>>> >>>> >>>> Just like compiling Linux kernel with LLVM for mips64el[3], the >>>> bug >>>> could be fixed both in Compiler side and HotSpot side, please >>>> give >>>> me some suggestion, thanks a lot! And my sincere thanks will go >>>> to >>>> Nick who helped me a lot! >>> this has been fixed in the jvm in JDK10 with https://bugs.openjd >>> k.jav >>> a.net/browse/JDK-8174050 . >>> >>> It has not been backported to jdk8; others may be able to tell you >>> if >>> it can/will be backported. >>> >>> Thanks, >>> Thomas >>> >>>> 1. http://hg.loongnix.org/ >>>> 2. Loongson clang version 7.0.0 >>>> (git at github.com:Loong-Language/loong-clang.git >>>> c36069cffc57a30a20782bf327a87bed4e48a6c2) >>>> (git at github.com:Loong-Language/loong-llvm.git >>>> 59cb663e72874dda740aa2b18bf47ba65b32fe9b) (based on LLVM >>>> 7.0.0svn) >>>> Target: mips64el-redhat-linux >>>> Thread model: posix >>>> InstalledDir: /opt/loong-llvm/bin >>>> Found candidate GCC installation: /usr/lib/gcc/mips64el-redhat- >>>> linux/4.9.3 >>>> Selected GCC installation: /usr/lib/gcc/mips64el-redhat- >>>> linux/4.9.3 >>>> Candidate multilib: .; >>>> Selected multilib: .; >>>> 3. http://lists.llvm.org/pipermail/llvm-dev/2018-July/124620.html >>>> >>-- Regards, Leslie Zhai
Maybe Matching Threads
- error: ordered comparison between pointer and zero ('address' (aka 'unsigned char *') and 'int')
- error: ordered comparison between pointer and zero ('address' (aka 'unsigned char *') and 'int')
- SAMBA slower than MARSNWE...
- Recommendation for a Linux based SCADA
- [LLVMdev] make DataLayout a mandatory part of Module