[LLVMdev] Calls to functions with signext/zeroext return values

[Cameron Zwarich]

On Mar 16, 2011, at 9:31 AM, Cameron Zwarich wrote:

> Promoting the return value is unsafe for bool returns on x86-64, which in the latest revision of the ABI only guarantees that the top 7 bits of the 8-bit register are 0.

My comment is a bit off, because the question of what type to make the return value is somewhat orthogonal to the question of which zext assert we should add.

Cameron