5bd464e386
From my very cursory reading, it seems that the register manager doesn't distinguish between registers that are physically the same but have different sizes. In that case, this means that during codegen, we can't rely on `reg.size()` when determining the width of the operations we have to perform. Instead, we must use some form of `ty.abiSize(self.target.*)` to determine the size of the type we're operating with. If this size is 64 bits, then we should enable 64-bit operation. This fixed a bug in the codegen for spilling instructions, which was overwriting the previous stack entry with zeroes. See the modified test case in this commit.
A general-purpose programming language and toolchain for maintaining robust, optimal, and reusable software.
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The ultimate goal of the Zig project is to serve users. As a first-order effect, this means users of the compiler, helping programmers to write better software. Even more important, however, are the end-users.
Zig is intended to be used to help end-users accomplish their goals. Zig should be used to empower end-users, never to exploit them financially, or to limit their freedom to interact with hardware or software in any way.
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This project redistributes code from other projects, some of which have other licenses besides MIT. Such licenses are generally similar to the MIT license for practical purposes. See the subdirectories and files inside lib/ for more details.