[cfe-dev] [release_34] [compiler_rt] UBSAN test failures on i586

[Richard Smith]

Will, is unsigned-integer-overflow one of yours?


On Thu, Dec 5, 2013 at 3:34 AM, İsmail Dönmez <ismail at donmez.ws> wrote:

> Hi,
>
> I have multiple UBSAN tests failing the same way:
>
>  ******************** TEST 'UndefinedBehaviorSanitizer-AddressSanitizer ::
> Integer/uadd-overflow.cpp' FAILED ********************
>  Script:
>  --
>  /home/abuild/rpmbuild/BUILD/llvm/stage2/bin/clang -fsanitize=address
> --driver-mode=g++ -DADD_I32 -fsanitize=unsigned-integer-overflow
> /home/abuild/rpmbuild/BUILD/llvm/projects/compiler-rt/lib/ubsan/lit_tests/TestCases/Integer/uadd-overflow.cpp
> -o
> /home/abuild/rpmbuild/BUILD/llvm/stage2/projects/compiler-rt/lib/ubsan/lit_tests/AsanConfig/Integer/Output/uadd-overflow.cpp.tmp
> &&
> /home/abuild/rpmbuild/BUILD/llvm/stage2/projects/compiler-rt/lib/ubsan/lit_tests/AsanConfig/Integer/Output/uadd-overflow.cpp.tmp
> 2>&1 | FileCheck
> /home/abuild/rpmbuild/BUILD/llvm/projects/compiler-rt/lib/ubsan/lit_tests/TestCases/Integer/uadd-overflow.cpp
> --check-prefix=CHECK-ADD_I32
>  /home/abuild/rpmbuild/BUILD/llvm/stage2/bin/clang -fsanitize=address
> --driver-mode=g++ -DADD_I64 -fsanitize=unsigned-integer-overflow
> /home/abuild/rpmbuild/BUILD/llvm/projects/compiler-rt/lib/ubsan/lit_tests/TestCases/Integer/uadd-overflow.cpp
> -o
> /home/abuild/rpmbuild/BUILD/llvm/stage2/projects/compiler-rt/lib/ubsan/lit_tests/AsanConfig/Integer/Output/uadd-overflow.cpp.tmp
> &&
> /home/abuild/rpmbuild/BUILD/llvm/stage2/projects/compiler-rt/lib/ubsan/lit_tests/AsanConfig/Integer/Output/uadd-overflow.cpp.tmp
> 2>&1 | FileCheck
> /home/abuild/rpmbuild/BUILD/llvm/projects/compiler-rt/lib/ubsan/lit_tests/TestCases/Integer/uadd-overflow.cpp
> --check-prefix=CHECK-ADD_I64
>  /home/abuild/rpmbuild/BUILD/llvm/stage2/bin/clang -fsanitize=address
> --driver-mode=g++ -DADD_I128 -fsanitize=unsigned-integer-overflow
> /home/abuild/rpmbuild/BUILD/llvm/projects/compiler-rt/lib/ubsan/lit_tests/TestCases/Integer/uadd-overflow.cpp
> -o
> /home/abuild/rpmbuild/BUILD/llvm/stage2/projects/compiler-rt/lib/ubsan/lit_tests/AsanConfig/Integer/Output/uadd-overflow.cpp.tmp
> &&
> /home/abuild/rpmbuild/BUILD/llvm/stage2/projects/compiler-rt/lib/ubsan/lit_tests/AsanConfig/Integer/Output/uadd-overflow.cpp.tmp
> 2>&1 | FileCheck
> /home/abuild/rpmbuild/BUILD/llvm/projects/compiler-rt/lib/ubsan/lit_tests/TestCases/Integer/uadd-overflow.cpp
> --check-prefix=CHECK-ADD_I128
>  --
>  Exit Code: 1
>
>  Command Output (stderr):
>  --
>  /home/abuild/rpmbuild/BUILD/llvm/projects/compiler-rt/lib/ubsan/lit_tests/TestCases/Integer/uadd-overflow.cpp:21:20:
> error: expected string not found in input
>   // CHECK-ADD_I64: 10000000000000000000 + 9000000000000000000 cannot be
> represented in type 'unsigned long'
>                     ^
>  <stdin>:1:1: note: scanning from here
>  /home/abuild/rpmbuild/BUILD/llvm/projects/compiler-rt/lib/ubsan/lit_tests/TestCases/Integer/uadd-overflow.cpp:20:44:
> runtime error: unsigned integer overflow: 10000000000000000000 +
> 9000000000000000000 cannot be represented in type 'unsigned long long'
>  ^
>  <stdin>:1:160: note: possible intended match here
>  /home/abuild/rpmbuild/BUILD/llvm/projects/compiler-rt/lib/ubsan/lit_tests/TestCases/Integer/uadd-overflow.cpp:20:44:
> runtime error: unsigned integer overflow: 10000000000000000000 +
> 9000000000000000000 cannot be represented in type 'unsigned long long'
>
> So the test expect to see "unsigned long" but output has "unsigned long
> long".
>
>
>
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>
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