[llvm-testresults] buildbot failure in smooshlab on llvm-gcc-x86_64-darwin10-selfhost
daniel_dunbar at apple.com
daniel_dunbar at apple.com
Thu Apr 22 18:27:59 PDT 2010
The Buildbot has detected a new failure of llvm-gcc-x86_64-darwin10-selfhost on smooshlab.
Full details are available at:
http://smooshlab.apple.com:8010/builders/llvm-gcc-x86_64-darwin10-selfhost/builds/3218
Buildbot URL: http://smooshlab.apple.com:8010/
Buildslave for this Build: smoosh-04
Build Reason:
Build Source Stamp: 102148
Blamelist: dgregor,void
BUILD FAILED: failed compile-llvm-stage2
sincerely,
-The Buildbot
================================================================================
CHANGES:
Files:
lib/Sema/TreeTransform.h
test/SemaObjCXX/instantiate-stmt.mm
At: Thu 22 Apr 2010 17:05:00
Changed By: dgregor
Comments: Template instantiation for @try and @finally (but not @catch, yet).
Properties:
File: gcc/llvm-convert.cpp
At: Thu 22 Apr 2010 17:05:00
Changed By: void
Comments: A fix for a nasty bug (<rdar://problem/7885482>). Here's what's happening:
Consider this pseudo-ObjC code:
// locking using some "lock" variable
@try {
// ...
} @catch (...) {
// ...
@throw;
} @finally {
// unlocking using the "lock" variable
}
The "lock" variable has live intervals from the top of the function through the
@try block and in the @finally block. On 32-bit x86, it doesn't have a live
interval in the @catch block. This is because in 32-bit mode Objective-C uses
setjmp/longjmp for exception handling and not the invoke/DWARF method. The
@throw is implemented as an "objc_exception_throw" call marked with
NORETURN. The upshot is that if the "lock" variable is placed into a stack slot,
there won't be an indication that the "lock" can be used after the
"objc_exception_throw" executes. With the invoke/DWARF method, the unwind edge
of the invoke points to the @finally block, so the "lock" variable will have a
live interval leading to there.
The solution is to have the "objc_exception_throw" behave in a similar manner to
the invoke/DWARF method. That is remove the "NORETURN" attribute, allowing it to
have an edge from the call to the @finally block.
Properties:
LOGS:
Last 10 lines of 'stdio':
then /bin/mv -f "/Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-x86_64-darwin10-selfhost/llvm-stage2/lib/Target/MBlaze/TargetInfo/Release/MBlazeTargetInfo.d.tmp" "/Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-x86_64-darwin10-selfhost/llvm-stage2/lib/Target/MBlaze/TargetInfo/Release/MBlazeTargetInfo.d"; else /bin/rm "/Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-x86_64-darwin10-selfhost/llvm-stage2/lib/Target/MBlaze/TargetInfo/Release/MBlazeTargetInfo.d.tmp"; exit 1; fi
llvm[4]: Building Release Archive Library libLLVMMBlazeInfo.a
/bin/rm -f /Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-x86_64-darwin10-selfhost/llvm-stage2/Release/lib/libLLVMMBlazeInfo.a
ar cru /Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-x86_64-darwin10-selfhost/llvm-stage2/Release/lib/libLLVMMBlazeInfo.a /Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-x86_64-darwin10-selfhost/llvm-stage2/lib/Target/MBlaze/TargetInfo/Release/MBlazeTargetInfo.o
ranlib /Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-x86_64-darwin10-selfhost/llvm-stage2/Release/lib/libLLVMMBlazeInfo.a
llvm[2]: Building Release Archive Library libLLVMCodeGen.a
/bin/rm -f /Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-x86_64-darwin10-selfhost/llvm-stage2/Release/lib/libLLVMCodeGen.a
ar cru /Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-x86_64-darwin10-selfhost/llvm-stage2/Release/lib/libLLVMCodeGen.a /Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-x86_64-darwin10-selfhost/llvm-stage2/lib/CodeGen/Release/AggressiveAntiDepBreaker.o /Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-x86_64-darwin10-selfhost/llvm-stage2/lib/CodeGen/Release/Analysis.o /Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-x86_64-darwin10-selfhost/llvm-stage2/lib/CodeGen/Release/BranchFolding.o /Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-x86_64-darwin10-selfhost/llvm-stage2/lib/CodeGen/Release/CalcSpillWeights.o /Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-x86_64-darwin10-selfhost/llvm-stage2/lib/CodeGen/Release/CodePlacementOpt.o /Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-x86_64-darwin10-selfhost/llvm-stage2/lib/CodeGen/Release/CriticalAntiDepBreaker.o /Users/buildslav
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lvm-gcc-x86_64-darwin10-selfhost/llvm-stage2/lib/CodeGen/Release/TailDuplication.o /Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-x86_64-darwin10-selfhost/llvm-stage2/lib/CodeGen/Release/TargetInstrInfoImpl.o /Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-x86_64-darwin10-selfhost/llvm-stage2/lib/CodeGen/Release/TargetLoweringObjectFileImpl.o /Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-x86_64-darwin10-selfhost/llvm-stage2/lib/CodeGen/Release/TwoAddressInstructionPass.o /Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-x86_64-darwin10-selfhost/llvm-stage2/lib/CodeGen/Release/UnreachableBlockElim.o /Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-x86_64-darwin10-selfhost/llvm-stage2/lib/CodeGen/Release/VirtRegMap.o /Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-x86_64-darwin10-selfhost/llvm-stage2/lib/CodeGen/Release/VirtRegRewriter.o
ranlib /Users/buildslave/zorg/buildbot/smooshlab/slave/build.llvm-gcc-x86_64-darwin10-selfhost/llvm-stage2/Release/lib/libLLVMCodeGen.a
make: *** [all] Error 1
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