[llvm-testresults] buildbot failure in smooshlab on clang-x86_64-darwin10-selfhost-rel

[Bill Wendling]

Yup. Already reverted.

-bw

On Mar 4, 2010, at 4:46 PM, Douglas Gregor wrote:

> Bill, I think this is yours...
> 
> 	- Doug
> 
> On Mar 4, 2010, at 4:43 PM, daniel_dunbar at apple.com wrote:
> 
>> The Buildbot has detected a new failure of clang-x86_64-darwin10-selfhost-rel on smooshlab.
>> Full details are available at:
>> http://smooshlab.apple.com:8010/builders/clang-x86_64-darwin10-selfhost-rel/builds/163
>> 
>> Buildbot URL: http://smooshlab.apple.com:8010/
>> 
>> Buildslave for this Build: smoosh-02
>> 
>> Build Reason: 
>> Build Source Stamp: 97767
>> Blamelist: dgregor,void
>> 
>> BUILD FAILED: failed compile.llvm.stage2
>> 
>> sincerely,
>> -The Buildbot
>> 
>> 
>> ================================================================================
>> 
>> CHANGES:
>> Files:
>> lib/Target/X86/X86InstrInfo.cpp
>> test/CodeGen/X86/jump-opt.ll
>> test/FrontendC/2008-07-29-EHLabel.ll
>> At: Thu 04 Mar 2010 16:28:57
>> Changed By: void
>> Comments: Micro-optimization:
>> 
>> This code:
>> 
>> float floatingPointComparison(float x, float y) {
>>   double product = (double)x * y;
>>   if (product == 0.0)
>>       return product;
>>   return product - 1.0;
>> }
>> 
>> produces this:
>> 
>> _floatingPointComparison:
>> 0000000000000000        cvtss2sd        %xmm1,%xmm1
>> 0000000000000004        cvtss2sd        %xmm0,%xmm0
>> 0000000000000008        mulsd           %xmm1,%xmm0
>> 000000000000000c        pxor            %xmm1,%xmm1
>> 0000000000000010        ucomisd         %xmm1,%xmm0
>> 0000000000000014        jne             0x00000004
>> 0000000000000016        jp              0x00000002
>> 0000000000000018        jmp             0x00000008
>> 000000000000001a        addsd           0x00000006(%rip),%xmm0
>> 0000000000000022        cvtsd2ss        %xmm0,%xmm0
>> 0000000000000026        ret
>> 
>> The "jne/jp/jmp" sequence can be reduced to this instead:
>> 
>> _floatingPointComparison:
>> 0000000000000000        cvtss2sd        %xmm1,%xmm1
>> 0000000000000004        cvtss2sd        %xmm0,%xmm0
>> 0000000000000008        mulsd           %xmm1,%xmm0
>> 000000000000000c        pxor            %xmm1,%xmm1
>> 0000000000000010        ucomisd         %xmm1,%xmm0
>> 0000000000000014        jp              0x00000002
>> 0000000000000016        je              0x00000008
>> 0000000000000018        addsd           0x00000006(%rip),%xmm0
>> 0000000000000020        cvtsd2ss        %xmm0,%xmm0
>> 0000000000000024        ret
>> 
>> for a savings of 2 bytes.
>> 
>> This xform can happen when we recognize that jne and jp jump to the same "true"
>> MBB, the unconditional jump would jump to the "false" MBB, and the "true" branch
>> is the fall-through MBB.
>> Properties: 
>> 
>> 
>> 
>> 
>> Files:
>> include/clang/AST/DeclBase.h
>> lib/AST/DeclBase.cpp
>> At: Thu 04 Mar 2010 16:28:57
>> Changed By: dgregor
>> Comments: When we invalidate a declaration, make it public, so that it doesn't
>> trigger access control or one of the many assertions we have for valid
>> access specifiers.
>> Properties: 
>> 
>> 
>> 
>> 
>> LOGS:
>> Last 10 lines of 'stdio':
>> 	llvm[1]: Compiling regcomp.c for Release build
>> 	llvm[1]: Compiling regerror.c for Release build
>> 	llvm[1]: Compiling regexec.c for Release build
>> 	llvm[1]: Compiling regfree.c for Release build
>> 	llvm[1]: Compiling regstrlcpy.c for Release build
>> 	/var/folders/UN/UNqse73IF28xfwzSQQzX5U+++TM/-Tmp-/cc-Tdn2Hz.s:unknown:Undefined local symbol LBB26_12
>> 	clang: error: assembler command failed with exit code 1 (use -v to see invocation)
>> 	make[1]: *** [/Users/buildslave/zorg/buildbot/smooshlab/slave/build.clang-x86_64-darwin10-selfhost-rel/llvm.obj.2/lib/Support/Release/Timer.o] Error 1
>> 	make[1]: *** Waiting for unfinished jobs....
>> 	make: *** [all] Error 1
>> 
>