mstorsjo wrote: This change broke a couple of ubsan tests on i686 on Windows (i.e. a 32 bit environment): https://github.com/mstorsjo/llvm-mingw/actions/runs/14527591706/job/40770945907
The failing tests are https://github.com/llvm/llvm-project/blob/llvmorg-20.1.3/compiler-rt/test/ubsan/TestCases/Misc/abs.cpp and https://github.com/llvm/llvm-project/blob/llvmorg-20.1.3/compiler-rt/test/ubsan/TestCases/ImplicitConversion/bitfield-conversion.c. The diff in ubsan output from `abs.cpp` looks like this: ```diff @@ -6,7 +6,7 @@ SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior compiler-rt/test/ubsan/TestCases/Misc/abs.cpp:19:18 compiler-rt/test/ubsan/TestCases/Misc/abs.cpp:20:8: runtime error: negation of -2147483648 cannot be represented in type 'long'; cast to an unsigned type to negate this value to itself SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior compiler-rt/test/ubsan/TestCases/Misc/abs.cpp:20:8 -compiler-rt/test/ubsan/TestCases/Misc/abs.cpp:24:19: runtime error: negation of -9223372036854775808 cannot be represented in type 'long long'; cast to an unsigned type to negate this value to itself +compiler-rt/test/ubsan/TestCases/Misc/abs.cpp:24:19: runtime error: negation of 14963666063463584 cannot be represented in type 'long long'; cast to an unsigned type to negate this value to itself SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior compiler-rt/test/ubsan/TestCases/Misc/abs.cpp:24:19 -compiler-rt/test/ubsan/TestCases/Misc/abs.cpp:25:9: runtime error: negation of -9223372036854775808 cannot be represented in type 'long long'; cast to an unsigned type to negate this value to itself +compiler-rt/test/ubsan/TestCases/Misc/abs.cpp:25:9: runtime error: negation of 8880086229349853276 cannot be represented in type 'long long'; cast to an unsigned type to negate this value to itself SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior compiler-rt/test/ubsan/TestCases/Misc/abs.cpp:25:9 ``` https://github.com/llvm/llvm-project/pull/135135 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
