<div dir="ltr">Ping!<br><br>BTW, the issue the patch fixes is a ubsan warning in the following test case:<br><br>test/ExecutionEngine/RuntimeDyld/AArch64/MachO_ARM64_relocations.s /tmp/foo.o<br>third_party/llvm/llvm/lib/ExecutionEngine/RuntimeDyld/Targets/RuntimeDyldMachOAArch64.h:186:47: runtime error: left shift of negative value -57344<br><br>--Artem<br><br>On Tue, Dec 23, 2014 at 1:02 PM, Artem Belevich <<a href="mailto:tra@google.com">tra@google.com</a>> wrote:<br>><br>> ---<br>>  lib/ExecutionEngine/RuntimeDyld/Targets/RuntimeDyldMachOAArch64.h | 5 +++--<br>>  1 file changed, 3 insertions(+), 2 deletions(-)<br>><br>> diff --git a/lib/ExecutionEngine/RuntimeDyld/Targets/RuntimeDyldMachOAArch64.h b/lib/ExecutionEngine/RuntimeDyld/Targets/RuntimeDyldMachOAArch64.h<br>> index 274c552..8fc58ee 100644<br>> --- a/lib/ExecutionEngine/RuntimeDyld/Targets/RuntimeDyldMachOAArch64.h<br>> +++ b/lib/ExecutionEngine/RuntimeDyld/Targets/RuntimeDyldMachOAArch64.h<br>> @@ -183,8 +183,9 @@ public:<br>>        assert(isInt<33>(Addend) && "Invalid page reloc value.");<br>><br>>        // Encode the addend into the instruction.<br>> -      uint32_t ImmLoValue = (uint32_t)(Addend << 17) & 0x60000000;<br>> -      uint32_t ImmHiValue = (uint32_t)(Addend >> 9) & 0x00FFFFE0;<br>> +      uint64_t AddressBits = Addend & 0x1FFFFF000;<br>> +      uint32_t ImmLoValue = (uint32_t)(AddressBits << 17) & 0x60000000;<br>> +      uint32_t ImmHiValue = (uint32_t)(AddressBits >> 9) & 0x00FFFFE0;<br>>        *p = (*p & 0x9F00001F) | ImmHiValue | ImmLoValue;<br>>        break;<br>>      }<br>> --<br>> 2.2.0.rc0.207.ga3a616c<br>><br><br><br><br>--<br>--Artem Belevich<br><div class="gmail_extra">
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