[llvm-testresults] buildbot failure in smooshlab on llvm-gcc-powerpc-darwin9

Evan Cheng evan.cheng at apple.com
Fri Feb 26 14:35:00 PST 2010


No, it's not 97262. It's this:

Ok. I narrowed it down. InstCombineCompares.cpp is being miscompiled. I was able to reduce the diff between good and bad to one chunk. Here it is:

good:
       xor r30, r24, r3
       xor r27, r26, r25
       cntlzw r26, r30
       cntlzw r25, r27
       or r30, r30, r27
       and r27, r26, r25
       cmplwi cr0, r30, 0
       srwi r30, r27, 5
       bne cr0, LBB75_13

bad:
       xor r30, r24, r3
       xor r27, r26, r25
       cntlzw r30, r30
       cntlzw r27, r27
       srwi r26, r30, 5
       srwi r25, r27, 5
       and r30, r30, r27
       cmplw cr0, r26, r25
       srwi r30, r30, 5
       bne cr0, LBB75_13

Evan

On Feb 26, 2010, at 2:34 PM, Jakob Stoklund Olesen wrote:

> 
> On Feb 26, 2010, at 12:42 PM, Evan Cheng wrote:
> 
>> I can reproduce this now. Looking.
> 
> I wonder if r97262 has fixed this issue. PPC could accidentally store a f32 to a f64 spill slot, so floating point could definitely get badly corrupted. I don't think it was possible to store a f64 to a f32 spill slot. That would be catastrophic, overwriting the neighboring slot.
> 
>> 
>> Evan
>> 
>> On Feb 26, 2010, at 9:43 AM, Daniel Dunbar wrote:
>> 
>>> Ok!
>>> 
>>> It's unfortunate that "self-host" isn't very meaningful...
>>> 
>>> - Daniel
>>> 
>>> On Feb 26, 2010, at 9:41 AM, Evan Cheng wrote:
>>> 
>>>> 
>>>> On Feb 26, 2010, at 9:41 AM, Daniel Dunbar wrote:
>>>> 
>>>>> On Thu, Feb 25, 2010 at 11:26 PM, Evan Cheng <evan.cheng at apple.com> wrote:
>>>>>> I just did a successful self-host with my patch re-applied.
>>>>> 
>>>>> Just a reminder, its more than a self-host, the failure was in the
>>>>> second llvm-gcc build. You would need to do
>>>>> llvm -> llvm-gcc -> llvm -> llvm-gcc
>>>>> to even possibly replicate the problem.
>>>> 
>>>> I know, I did this sequence 3 times already.
>>>> 
>>>> Evan
>>>> 
>>>>> 
>>>>> - Daniel
>>>>> 
>>>>>> Evan
>>>>>> 
>>>>>> On Feb 24, 2010, at 6:15 PM, Daniel Dunbar wrote:
>>>>>> 
>>>>>>> On Wed, Feb 24, 2010 at 5:50 PM, Stuart Hastings <stuart at apple.com> wrote:
>>>>>>>> 
>>>>>>>> On Feb 24, 2010, at 1:38 PM, Stuart Hastings wrote:
>>>>>>>> 
>>>>>>>> On Feb 24, 2010, at 12:15 PM, Daniel Dunbar wrote:
>>>>>>>> 
>>>>>>>> Just a reminder, this isn't a simple bootstrap, it is failing in the stage2
>>>>>>>> llm-gcc compile. My guess is the first LLVM-gcc is miscompiling the second
>>>>>>>> stage LLVM. That won't show up in a normal LLVM-gcc bootstrap.
>>>>>>>> 
>>>>>>>> I have an llvmgcc bootstrap of r97011 running right now on smoosh-14.
>>>>>>>> 
>>>>>>>> A straightforward FSF-style bootstrap of llvm-gcc at revision 97011 worked
>>>>>>>> O.K.  It looks like I'll need to duplicate the build-install-build procedure
>>>>>>>> used by the buildbot scripts.
>>>>>>>> Daniel, is it feasible to run the buildbot script by hand in a directory of
>>>>>>>> my own choosing?  If not, I think I can duplicate it by scanning the logs...
>>>>>>>> stuart
>>>>>>> 
>>>>>>> No, but its pretty straightforward, just do another configure and make
>>>>>>> of llvm using the built llvm-gcc, then another llvm-gcc with the
>>>>>>> second llvm and using the first llvm-gcc.
>>>>>>> 
>>>>>>> And yes, you can see what it is doing by checking the first two lines
>>>>>>> of the logs, the first line is the command that is run, the second is
>>>>>>> the directory it ran it in.
>>>>>>> 
>>>>>>> - Daniel
>>>>>>> 
>>>>>>>> 
>>>>>>>> stuart
>>>>>>>> 
>>>>>>>> 
>>>>>>>> - Daniel
>>>>>>>> 
>>>>>>>> 
>>>>>>>> On Feb 24, 2010, at 11:12 AM, Evan Cheng <evan.cheng at apple.com> wrote:
>>>>>>>> 
>>>>>>>> Well, I can't reproduce on my machine. My ppc machine self-hosted fine last
>>>>>>>> night. I think there is something else going on. Stuart, Dale, can one of
>>>>>>>> you guys reproduce this look at this a bit? Is it llvmCore being miscompiled
>>>>>>>> or llvmgcc42? Please get me a test case if that's possible. Thanks.
>>>>>>>> 
>>>>>>>> Dan, can you audit my patch carefully? Thanks.
>>>>>>>> 
>>>>>>>> Evan
>>>>>>>> 
>>>>>>>> On Feb 24, 2010, at 10:55 AM, Dale Johannesen wrote:
>>>>>>>> 
>>>>>>>> 
>>>>>>>> On Feb 24, 2010, at 10:49 AMPST, Bob Wilson wrote:
>>>>>>>> 
>>>>>>>> The ppc buildbot just turned green (with 97011 reverted).
>>>>>>>> 
>>>>>>>> Yep.  I'm satisfied that was it.  Thanks Daniel.
>>>>>>>> 
>>>>>>>> On Feb 24, 2010, at 10:43 AM, Dale Johannesen wrote:
>>>>>>>> 
>>>>>>>> 
>>>>>>>> On Feb 24, 2010, at 9:34 AMPST, Evan Cheng wrote:
>>>>>>>> 
>>>>>>>> On Feb 24, 2010, at 9:02 AM, Daniel Dunbar <daniel_dunbar at apple.com> wrote:
>>>>>>>> 
>>>>>>>> On Feb 24, 2010, at 1:47 AM, Evan Cheng wrote:
>>>>>>>> 
>>>>>>>> I saw this on x86 last night. Then it disappeared. I am moving tomorrow so I
>>>>>>>> can't deal with it. Dale, could you help? Thanks.
>>>>>>>> 
>>>>>>>> Ok, I'm going to try another speculative revert of r97011 then.
>>>>>>>> 
>>>>>>>> You are not understanding me. I saw this assertion on x86 the night before.
>>>>>>>> It was well before I commit the patch.
>>>>>>>> 
>>>>>>>> You may have, but the x86 buildbots are not failing.  The ppc buildbots
>>>>>>>> (both) are failing consistently, and logs indicate the breakage was between
>>>>>>>> 97006 and 97012.   I suppose it could be nondeterminism but the observed
>>>>>>>> behavior is quite deterministic.  I'll go talk to Stuart...
>>>>>>>> 
>>>>>>>> Someone should actually debug the failure.
>>>>>>>> 
>>>>>>>> Evan
>>>>>>>> 
>>>>>>>> 
>>>>>>>> - Daniel
>>>>>>>> 
>>>>>>>> Evan
>>>>>>>> 
>>>>>>>> On Feb 24, 2010, at 12:44 AM, Daniel Dunbar <daniel_dunbar at apple.com> wrote:
>>>>>>>> 
>>>>>>>> My revert of r97010 didn't work. Evan, 97011 seems the next obvious guess,
>>>>>>>> can you take a look?
>>>>>>>> 
>>>>>>>> - Daniel
>>>>>>>> 
>>>>>>>> On Feb 23, 2010, at 10:45 PM, Daniel Dunbar wrote:
>>>>>>>> 
>>>>>>>> 
>>>>>>>> On Feb 23, 2010, at 10:03 PM, Daniel Dunbar wrote:
>>>>>>>> 
>>>>>>>> Evan, Jim, Bob, anyone have a guess what is going on here? I'm
>>>>>>>> 
>>>>>>>> guessing Bob's patch is most likely since it touches an IR pass...
>>>>>>>> 
>>>>>>>> I'll probably pull that in a bit if no one replies.
>>>>>>>> 
>>>>>>>> I stashed off a .bc file, but I can't reproduce with it. I'm assuming this
>>>>>>>> is most likely a miscompile of llvm stage1? Here is the info:
>>>>>>>> 
>>>>>>>> --
>>>>>>>> 
>>>>>>>> smoosh-14:libcpp buildslave$
>>>>>>>> /Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-powerpc-darwin9/llvm-gcc.obj.2/./prev-gcc/xgcc
>>>>>>>> -B/Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-powerpc-darwin9/llvm-gcc.obj.2/./prev-gcc/
>>>>>>>> -B/Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-powerpc-darwin9/llvm-gcc.install.2/powerpc-apple-darwin9/bin/
>>>>>>>> -I../../llvm-gcc.src/libcpp -I. -I../../llvm-gcc.src/libcpp/../include
>>>>>>>> -I./../intl -I../../llvm-gcc.src/libcpp/include -DENABLE_LLVM -g -O2
>>>>>>>> -mdynamic-no-pic -W -Wall -Wwrite-strings -Wstrict-prototypes
>>>>>>>> -Wmissing-prototypes -Wold-style-definition -Wmissing-format-attribute
>>>>>>>> -pedantic -Wno-long-long  -I../../llvm-gcc.src/libcpp -I.
>>>>>>>> -I../../llvm-gcc.src/libcpp/../include -I./../intl
>>>>>>>> -I../../llvm-gcc.src/libcpp/include -DENABLE_LLVM -c -o init.o -MT init.o
>>>>>>>> -MMD -MP -MF .deps/init.Po ../../llvm-gcc.src/libcpp/init.c
>>>>>>>> 
>>>>>>>> Assertion failed: (i < NumOperands && "getOperand() out of range!"),
>>>>>>>> function getOperand, file
>>>>>>>> /Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-powerpc-darwin9/llvm.src/include/llvm/User.h,
>>>>>>>> line 104.
>>>>>>>> 
>>>>>>>> ../../llvm-gcc.src/libcpp/init.c:666: internal compiler error: Abort trap
>>>>>>>> 
>>>>>>>> Please submit a full bug report,
>>>>>>>> 
>>>>>>>> with preprocessed source if appropriate.
>>>>>>>> 
>>>>>>>> See <URL:http://llvm.org/bugs/> for instructions.
>>>>>>>> 
>>>>>>>> smoosh-14:libcpp buildslave$
>>>>>>>> /Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-powerpc-darwin9/llvm-gcc.obj.2/./prev-gcc/xgcc
>>>>>>>> -B/Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-powerpc-darwin9/llvm-gcc.obj.2/./prev-gcc/
>>>>>>>> -B/Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-powerpc-darwin9/llvm-gcc.install.2/powerpc-apple-darwin9/bin/
>>>>>>>> -I../../llvm-gcc.src/libcpp -I. -I../../llvm-gcc.src/libcpp/../include
>>>>>>>> -I./../intl -I../../llvm-gcc.src/libcpp/include -DENABLE_LLVM -g -O2
>>>>>>>> -mdynamic-no-pic -W -Wall -Wwrite-strings -Wstrict-prototypes
>>>>>>>> -Wmissing-prototypes -Wold-style-definition -Wmissing-format-attribute
>>>>>>>> -pedantic -Wno-long-long  -I../../llvm-gcc.src/libcpp -I.
>>>>>>>> -I../../llvm-gcc.src/libcpp/../include -I./../intl
>>>>>>>> -I../../llvm-gcc.src/libcpp/include -DENABLE_LLVM -c -o init.o -MT init.o
>>>>>>>> -MMD -MP -MF .deps/init.Po ../../llvm-gcc.src/libcpp/init.c -emit-llvm -o
>>>>>>>> /tmp/t.bc
>>>>>>>> 
>>>>>>>> (gdb) r
>>>>>>>> 
>>>>>>>> Starting program:
>>>>>>>> /Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-powerpc-darwin9/llvm-gcc.obj.2/prev-gcc/cc1
>>>>>>>> -quiet -I../../llvm-gcc.src/libcpp -I.
>>>>>>>> -I../../llvm-gcc.src/libcpp/../include -I./../intl
>>>>>>>> -I../../llvm-gcc.src/libcpp/include -I../../llvm-gcc.src/libcpp -I.
>>>>>>>> -I../../llvm-gcc.src/libcpp/../include -I./../intl
>>>>>>>> -I../../llvm-gcc.src/libcpp/include -iprefix
>>>>>>>> /Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-powerpc-darwin9/llvm-gcc.obj.2/prev-gcc/../lib/gcc/powerpc-apple-darwin9/4.2.1/
>>>>>>>> -isystem
>>>>>>>> /Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-powerpc-darwin9/llvm-gcc.obj.2/./prev-gcc/include
>>>>>>>> -MMD init.d -MF .deps/init.Po -MP -MT init.o -MQ init.o -D__DYNAMIC__
>>>>>>>> -DENABLE_LLVM -DENABLE_LLVM ../../llvm-gcc.src/libcpp/init.c
>>>>>>>> -feliminate-unused-debug-symbols -quiet -dumpbase init.c
>>>>>>>> -mmacosx-version-min=10.5.8 -mdynamic-no-pic -auxbase-strip init.o -g -O2 -W
>>>>>>>> -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes
>>>>>>>> -Wold-style-definition -Wmissing-format-attribute -pedantic -Wno-long-long
>>>>>>>> -o /var/tmp//cc9W2r3q.s
>>>>>>>> 
>>>>>>>> Reading symbols for shared libraries ++++.. done
>>>>>>>> 
>>>>>>>> Assertion failed: (i < NumOperands && "getOperand() out of range!"),
>>>>>>>> function getOperand, file
>>>>>>>> /Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-powerpc-darwin9/llvm.src/include/llvm/User.h,
>>>>>>>> line 104.
>>>>>>>> 
>>>>>>>> Program received signal SIGABRT, Aborted.
>>>>>>>> 
>>>>>>>> 0x90b76b50 in __kill ()
>>>>>>>> 
>>>>>>>> (gdb) bt
>>>>>>>> 
>>>>>>>> #0  0x90b76b50 in __kill ()
>>>>>>>> 
>>>>>>>> #1  0x90c11c00 in abort ()
>>>>>>>> 
>>>>>>>> #2  0x90c04c10 in __assert_rtn ()
>>>>>>>> 
>>>>>>>> #3  0x00ea949c in llvm::InstCombiner::FoldGEPICmp ()
>>>>>>>> 
>>>>>>>> #4  0x00eb1260 in llvm::InstCombiner::visitICmpInst ()
>>>>>>>> 
>>>>>>>> #5  0x00ee5158 in llvm::InstVisitor<llvm::InstCombiner,
>>>>>>>> llvm::Instruction*>::visit ()
>>>>>>>> 
>>>>>>>> #6  0x00edf0c8 in llvm::InstCombiner::DoOneIteration ()
>>>>>>>> 
>>>>>>>> #7  0x00ed9bc8 in llvm::InstCombiner::runOnFunction ()
>>>>>>>> 
>>>>>>>> #8  0x010c5400 in llvm::FPPassManager::runOnFunction ()
>>>>>>>> 
>>>>>>>> #9  0x00f2a190 in (anonymous namespace)::CGPassManager::runOnModule ()
>>>>>>>> 
>>>>>>>> #10 0x010c4f58 in llvm::MPPassManager::runOnModule ()
>>>>>>>> 
>>>>>>>> #11 0x010c67c0 in llvm::PassManagerImpl::run ()
>>>>>>>> 
>>>>>>>> #12 0x010c6894 in llvm::PassManager::run ()
>>>>>>>> 
>>>>>>>> #13 0x0087d6f4 in llvm_asm_file_end ()
>>>>>>>> 
>>>>>>>> #14 0x0079eeec in compile_file ()
>>>>>>>> 
>>>>>>>> #15 0x007a1f18 in do_compile ()
>>>>>>>> 
>>>>>>>> #16 0x007a1fe0 in toplev_main ()
>>>>>>>> 
>>>>>>>> #17 0x00122ffc in main ()
>>>>>>>> 
>>>>>>>> --
>>>>>>>> 
>>>>>>>> <t.bc>
>>>>>>>> 
>>>>>>>> - Daniel
>>>>>>>> 
>>>>>>>> 
>>>>>>>> - Daniel
>>>>>>>> 
>>>>>>>> On Tue, Feb 23, 2010 at 6:48 PM,  <daniel_dunbar at apple.com> wrote:
>>>>>>>> 
>>>>>>>> The Buildbot has detected a new failure of llvm-gcc-powerpc-darwin9 on
>>>>>>>> smooshlab.
>>>>>>>> 
>>>>>>>> Full details are available at:
>>>>>>>> 
>>>>>>>> http://smooshlab.apple.com:8010/builders/llvm-gcc-powerpc-darwin9/builds/979
>>>>>>>> 
>>>>>>>> Buildbot URL: http://smooshlab.apple.com:8010/
>>>>>>>> 
>>>>>>>> Buildslave for this Build: smoosh-14.apple.com
>>>>>>>> 
>>>>>>>> Build Reason:
>>>>>>>> 
>>>>>>>> Build Source Stamp: 97012
>>>>>>>> 
>>>>>>>> Blamelist: bwilson,evancheng,fjahanian,grosbach,johannes
>>>>>>>> 
>>>>>>>> BUILD FAILED: failed test.llvm.stage2 compile.llvm-gcc.stage2
>>>>>>>> 
>>>>>>>> sincerely,
>>>>>>>> 
>>>>>>>> -The Buildbot
>>>>>>>> 
>>>>>>>> 
>>>>>>>> ================================================================================
>>>>>>>> 
>>>>>>>> CHANGES:
>>>>>>>> 
>>>>>>>> Files:
>>>>>>>> 
>>>>>>>> SingleSource/Benchmarks/Misc/Makefile
>>>>>>>> 
>>>>>>>> SingleSource/UnitTests/Makefile
>>>>>>>> 
>>>>>>>> At: Tue 23 Feb 2010 17:25:31
>>>>>>>> 
>>>>>>>> Changed By: johannes
>>>>>>>> 
>>>>>>>> Comments: Disable some tests on PPC Darwin that are never going to work.
>>>>>>>> 
>>>>>>>> Properties:
>>>>>>>> 
>>>>>>>> 
>>>>>>>> 
>>>>>>>> 
>>>>>>>> Files:
>>>>>>>> 
>>>>>>>> lib/Frontend/RewriteObjC.cpp
>>>>>>>> 
>>>>>>>> test/Rewriter/rewrite-block-pointer.mm
>>>>>>>> 
>>>>>>>> At: Tue 23 Feb 2010 17:30:31
>>>>>>>> 
>>>>>>>> Changed By: fjahanian
>>>>>>>> 
>>>>>>>> Comments: Fix rewriting of a method when return type is
>>>>>>>> 
>>>>>>>> a block pointer type. Fixes radar 7682149.
>>>>>>>> 
>>>>>>>> Properties:
>>>>>>>> 
>>>>>>>> 
>>>>>>>> 
>>>>>>>> 
>>>>>>>> File: test/Rewriter/rewrite-block-pointer.mm
>>>>>>>> 
>>>>>>>> At: Tue 23 Feb 2010 17:40:33
>>>>>>>> 
>>>>>>>> Changed By: fjahanian
>>>>>>>> 
>>>>>>>> Comments: Correct radar no.
>>>>>>>> 
>>>>>>>> Properties:
>>>>>>>> 
>>>>>>>> 
>>>>>>>> 
>>>>>>>> 
>>>>>>>> Files:
>>>>>>>> 
>>>>>>>> include/llvm/Analysis/PHITransAddr.h
>>>>>>>> 
>>>>>>>> lib/Analysis/MemoryDependenceAnalysis.cpp
>>>>>>>> 
>>>>>>>> lib/Analysis/PHITransAddr.cpp
>>>>>>>> 
>>>>>>>> lib/Transforms/Scalar/GVN.cpp
>>>>>>>> 
>>>>>>>> At: Tue 23 Feb 2010 17:40:33
>>>>>>>> 
>>>>>>>> Changed By: bwilson
>>>>>>>> 
>>>>>>>> Comments: Add an argument to PHITranslateValue to specify the DominatorTree.
>>>>>>>> If this
>>>>>>>> 
>>>>>>>> argument is non-null, pass it along to PHITranslateSubExpr so that it can
>>>>>>>> 
>>>>>>>> prefer using existing values that dominate the PredBB, instead of just
>>>>>>>> 
>>>>>>>> blindly picking the first equivalent value that it finds on a uselist.
>>>>>>>> 
>>>>>>>> Also when the DominatorTree is specified, have PHITranslateValue filter
>>>>>>>> 
>>>>>>>> out any result that does not dominate the PredBB.  This is basically just
>>>>>>>> 
>>>>>>>> refactoring the check that used to be in GetAvailablePHITranslatedSubExpr
>>>>>>>> 
>>>>>>>> and also in GVN.
>>>>>>>> 
>>>>>>>> Despite my initial expectations, this change does not affect the results
>>>>>>>> 
>>>>>>>> of GVN for any testcases that I could find, but it should help compile time.
>>>>>>>> 
>>>>>>>> Before this change, if PHITranslateSubExpr picked a value that does not
>>>>>>>> 
>>>>>>>> dominate, PHITranslateWithInsertion would then insert a new value, which GVN
>>>>>>>> 
>>>>>>>> would later determine to be redundant and would replace.  By picking a good
>>>>>>>> 
>>>>>>>> value to begin with, we save GVN the extra work of inserting and then
>>>>>>>> 
>>>>>>>> replacing a new value.
>>>>>>>> 
>>>>>>>> Properties:
>>>>>>>> 
>>>>>>>> 
>>>>>>>> 
>>>>>>>> 
>>>>>>>> Files:
>>>>>>>> 
>>>>>>>> lib/CodeGen/SelectionDAG/DAGCombiner.cpp
>>>>>>>> 
>>>>>>>> lib/CodeGen/SelectionDAG/TargetLowering.cpp
>>>>>>>> 
>>>>>>>> lib/Target/X86/X86ISelLowering.cpp
>>>>>>>> 
>>>>>>>> test/CodeGen/X86/2010-02-23-DAGCombineBug.ll
>>>>>>>> 
>>>>>>>> test/CodeGen/X86/critical-edge-split.ll
>>>>>>>> 
>>>>>>>> test/CodeGen/X86/ins_subreg_coalesce-3.ll
>>>>>>>> 
>>>>>>>> test/CodeGen/X86/trunc-to-bool.ll
>>>>>>>> 
>>>>>>>> test/CodeGen/X86/xor-icmp.ll
>>>>>>>> 
>>>>>>>> At: Tue 23 Feb 2010 17:45:32
>>>>>>>> 
>>>>>>>> Changed By: evancheng
>>>>>>>> 
>>>>>>>> Comments: Re-apply 96540 and 96556 with fixes.Properties:
>>>>>>>> 
>>>>>>>> 
>>>>>>>> 
>>>>>>>> 
>>>>>>>> Files:
>>>>>>>> 
>>>>>>>> lib/Target/ARM/ARMISelLowering.cpp
>>>>>>>> 
>>>>>>>> test/CodeGen/Thumb2/ldr-str-imm12.ll
>>>>>>>> 
>>>>>>>> At: Tue 23 Feb 2010 17:45:32
>>>>>>>> 
>>>>>>>> Changed By: grosbach
>>>>>>>> 
>>>>>>>> Comments: LowerCall() should always do getCopyFromReg() to reference the
>>>>>>>> stack pointer.
>>>>>>>> 
>>>>>>>> Machine instruction selection is much happier when operands are in virtual
>>>>>>>> 
>>>>>>>> registers.Properties:
>>>>>>>> 
>>>>>>>> 
>>>>>>>> 
>>>>>>>> 
>>>>>>>> LOGS:
>>>>>>>> 
>>>>>>>> Last 10 lines of 'stdio':
>>>>>>>> 
>>>>>>>> ********************
>>>>>>>> 
>>>>>>>> Failing Tests (1):
>>>>>>>> 
>>>>>>>> LLVM :: FrontendC/2003-08-23-LocalUnionTest.c
>>>>>>>> 
>>>>>>>> Expected Passes    : 4991
>>>>>>>> 
>>>>>>>> Expected Failures  : 38
>>>>>>>> 
>>>>>>>> Unsupported Tests  : 64
>>>>>>>> 
>>>>>>>> Unexpected Failures: 1
>>>>>>>> 
>>>>>>>> make[1]: *** [check-local-lit] Error 1
>>>>>>>> 
>>>>>>>> make: *** [check-lit] Error 2
>>>>>>>> 
>>>>>>>> Last 10 lines of 'fail':
>>>>>>>> 
>>>>>>>> LLVM :: FrontendC/2003-08-23-LocalUnionTest.c
>>>>>>>> 
>>>>>>>> Last 10 lines of 'xfail':
>>>>>>>> 
>>>>>>>> LLVM :: LLVMC/MultiplePluginPriorities.td
>>>>>>>> 
>>>>>>>> LLVM :: LLVMC/OutputSuffixHook.td
>>>>>>>> 
>>>>>>>> LLVM :: MC/AsmParser/directive_lsym.s
>>>>>>>> 
>>>>>>>> LLVM :: MC/AsmParser/exprs-invalid.s
>>>>>>>> 
>>>>>>>> LLVM :: Transforms/GVN/rle-no-phi-translate.ll
>>>>>>>> 
>>>>>>>> LLVM :: Transforms/GlobalOpt/2009-03-03-dbg.ll
>>>>>>>> 
>>>>>>>> LLVM :: Transforms/GlobalOpt/2009-03-05-dbg.ll
>>>>>>>> 
>>>>>>>> LLVM :: Transforms/IndVarSimplify/loop_evaluate_6.ll
>>>>>>>> 
>>>>>>>> LLVM :: Transforms/TailCallElim/nocapture.ll
>>>>>>>> 
>>>>>>>> LLVM :: Transforms/TailDup/2008-06-11-AvoidDupLoopHeader.ll
>>>>>>>> 
>>>>>>>> Last 10 lines of 'unsupported':
>>>>>>>> 
>>>>>>>> LLVM :: FrontendObjC/2009-04-27-bitfield-vs-ivar.m
>>>>>>>> 
>>>>>>>> LLVM :: FrontendObjC/2009-04-28-bitfield-vs-vbc.m
>>>>>>>> 
>>>>>>>> LLVM :: FrontendObjC/2009-08-05-utf16.m
>>>>>>>> 
>>>>>>>> LLVM :: FrontendObjC/2009-08-17-DebugInfo.m
>>>>>>>> 
>>>>>>>> LLVM :: FrontendObjC/2009-11-30-Objc-ID.m
>>>>>>>> 
>>>>>>>> LLVM :: FrontendObjC/2010-02-01-utf16-with-null.m
>>>>>>>> 
>>>>>>>> LLVM :: FrontendObjC/2010-02-11-fwritable-stringsBug.m
>>>>>>>> 
>>>>>>>> LLVM :: FrontendObjC/2010-02-23-DbgInheritance.m
>>>>>>>> 
>>>>>>>> LLVM :: LLVMC/ObjC++/hello.mm
>>>>>>>> 
>>>>>>>> LLVM :: LLVMC/ObjC/hello.m
>>>>>>>> 
>>>>>>>> Last 10 lines of '2003-08-23-localuniontest.c':
>>>>>>>> 
>>>>>>>> --
>>>>>>>> 
>>>>>>>> Command Output (stderr):
>>>>>>>> 
>>>>>>>> --
>>>>>>>> 
>>>>>>>> /Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-powerpc-darwin9/llvm.src/test/FrontendC/2003-08-23-LocalUnionTest.c:
>>>>>>>> In function 'test':
>>>>>>>> 
>>>>>>>> /Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-powerpc-darwin9/llvm.src/test/FrontendC/2003-08-23-LocalUnionTest.c:9:
>>>>>>>> error: redefinition of 'union foo'
>>>>>>>> 
>>>>>>>> --
>>>>>>>> 
>>>>>>>> ********************
>>>>>>>> 
>>>>>>>> 
>>>>>>>> Last 10 lines of 'stdio':
>>>>>>>> 
>>>>>>>> configure: creating ./config.status
>>>>>>>> 
>>>>>>>> config.status: creating Makefile
>>>>>>>> 
>>>>>>>> config.status: creating gccbug
>>>>>>>> 
>>>>>>>> config.status: creating mklibgcc
>>>>>>>> 
>>>>>>>> config.status: creating libada-mk
>>>>>>>> 
>>>>>>>> config.status: creating ada/Makefile
>>>>>>>> 
>>>>>>>> config.status: creating auto-host.h
>>>>>>>> 
>>>>>>>> config.status: executing default commands
>>>>>>>> 
>>>>>>>> make[1]: *** [stage2-bubble] Error 2
>>>>>>>> 
>>>>>>>> make: *** [all] Error 2
>>>>>>>> 
>>>>>>>> Last 10 lines of 'warnings':
>>>>>>>> 
>>>>>>>> ../../llvm-gcc.src/gcc/config/rs6000/altivec.md:1781: warning: operand 3
>>>>>>>> missing mode?
>>>>>>>> 
>>>>>>>> ../../llvm-gcc.src/gcc/config/rs6000/altivec.md:1794: warning: operand 3
>>>>>>>> missing mode?
>>>>>>>> 
>>>>>>>> ../../llvm-gcc.src/gcc/config/rs6000/altivec.md:1807: warning: operand 3
>>>>>>>> missing mode?
>>>>>>>> 
>>>>>>>> ../../llvm-gcc.src/gcc/config/rs6000/altivec.md:1882: warning: operand 1
>>>>>>>> missing mode?
>>>>>>>> 
>>>>>>>> ../../llvm-gcc.src/gcc/config/rs6000/altivec.md:1889: warning: operand 1
>>>>>>>> missing mode?
>>>>>>>> 
>>>>>>>> ../../llvm-gcc.src/gcc/config/rs6000/altivec.md:2195: warning: destination
>>>>>>>> missing a mode?
>>>>>>>> 
>>>>>>>> ../../llvm-gcc.src/gcc/config/rs6000/altivec.md:2195: warning: operand 0
>>>>>>>> missing mode?
>>>>>>>> 
>>>>>>>> ../../llvm-gcc.src/gcc/sched-vis.c:628: warning: no previous prototype for
>>>>>>>> 'print_insn'
>>>>>>>> 
>>>>>>>> ../../llvm-gcc.src/gcc/libgcc2.c:412: warning: control reaches end of
>>>>>>>> non-void function
>>>>>>>> 
>>>>>>>> ../../llvm-gcc.src/gcc/libgcc2.c:2045: warning: 'noreturn' function does
>>>>>>>> return
>>>>>>>> 
>>>>>>>> _______________________________________________
>>>>>>>> 
>>>>>>>> llvm-testresults mailing list
>>>>>>>> 
>>>>>>>> llvm-testresults at cs.uiuc.edu
>>>>>>>> 
>>>>>>>> http://lists.cs.uiuc.edu/mailman/listinfo/llvm-testresults
>>>>>>>> 
>>>>>>>> 
>>>>>>>> 
>>>>>>>> 
>>>>>>>> 
>>>>>>>> 
>>>>>>>> 
>>>>>>>> 
>>>>>>>> 
>>>>>>>> _______________________________________________
>>>>>>>> llvm-testresults mailing list
>>>>>>>> llvm-testresults at cs.uiuc.edu
>>>>>>>> http://lists.cs.uiuc.edu/mailman/listinfo/llvm-testresults
>>>>>>>> 
>>>>>>>> 
>>>>>>>> _______________________________________________
>>>>>>>> llvm-testresults mailing list
>>>>>>>> llvm-testresults at cs.uiuc.edu
>>>>>>>> http://lists.cs.uiuc.edu/mailman/listinfo/llvm-testresults
>>>>>>>> 
>>>>>>>> 
>>>>>> 
>>>>>> 
>>>> 
>>> 
>> 
>> 
>> _______________________________________________
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