[ARM] signed zero
Mon May 23 14:05:00 GMT 2011
This patch fixes issues with signed zero offsets in the arm assembler and
The ARM ISA encodes offsets in sign/magnitude representation, so there are two
representations of zero. The ISA specifies how the assembler should select the
right one, and the disassembler should explicitly show -0. For +0, it should
elide the offset in certain circumstances.
This patch fixes up things so that, for instance
is encoded correctly.
tested on arm-eabi, ok?
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