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Commit d8900f66 authored by Fangrui Song's avatar Fangrui Song
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[ARM] Fix abs overflow when encoding instructions like strb r1, [r0], #-0 

Tested by llvm/test/MC/ARM/basic-thumb2-instructions.s.
Caught by newer -fsanitize=signed-integer-overflow (D156821).
parent 6a0e536c
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