[llvm-commits] [PATCH] Add RETW and LRETW instructions

[Charles Davis]

On Mar 23, 2012, at 6:24 PM, Joerg Sonnenberger wrote:
> Missing test case?
Added.

On Mar 24, 2012, at 10:40 AM, Kay Tiong Khoo wrote:
> Can you make these print correctly with Intel syntax? I assume the opcode remains "ret" but there's some "[word]" decorator suffix?
In the Intel syntax, there is no size suffix. There's a suffix to indicate near vs. far return, but the processor is actually expected to infer whether it should do a 32-bit or 16-bit return based on the target segment. I went ahead and added "retf" mnemonics for Intel syntax. (I wanted to add "retn" mnemonics, too, but I couldn't figure out how to make that work.)

Anyway, here is a patch that addresses all of Kay and Joerg's concerns.

Chip
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