Import Upstream version 20180207
[hcoop/debian/mlton.git] / doc / guide / src / RunningOnAMD64.adoc
1 RunningOnAMD64
2 ==============
3
4 MLton runs fine on the AMD64 (aka "x86-64" or "x64") architecture.
5
6 == Notes ==
7
8 * When compiling for AMD64, MLton targets the 64-bit ABI.
9
10 * On AMD64, MLton supports native code generation (`-codegen native` or `-codegen amd64`).
11
12 * When compiling for AMD64, MLton uses `-align 8` by default. Using
13 `-align 4` may be incompatible with optimized builds of the <:GnuMP:>
14 library, which assume 8-byte alignment. (See the thread at
15 http://www.mlton.org/pipermail/mlton/2009-October/030674.html for more
16 details.)