Changeset 8962:1c063dca6858
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X86: Runtime read, write conditions for CCFlagBits register
This patch introduces runtime read, write conditions for CCFlagBits register.
The main idea is that each microop, while being used in the microcode,
should specify the condition code flags it would read and write. On the
basis of this info, at runtime, it would be decided which condition code
registers should be read and written. This would help in reducing the extent
of RAW dependence while using the o3 cpu with x86. Currently, the flags that
would read and written are specified together. Next couple of patches would
try to look in to splitting the flags in to read and write sets and split the
ccFlagBits register.