generate _mm_packus_epi16

crates/generate/src/main.rs

@@ -0,0 +1,87 @@
+mod generate;
+mod parse;
+
+use eyre::{Context, Result};
+use strong_xml::XmlRead;
+
+#[derive(Debug, XmlRead)]
+#[xml(tag = "intrinsics_list")]
+struct IntrinsicsList {
+    #[xml(child = "intrinsic")]
+    intrinsics: Vec<Intrinsic>,
+}
+
+#[derive(Debug, XmlRead)]
+#[xml(tag = "intrinsic")]
+struct Intrinsic {
+    #[xml(attr = "name")]
+    name: String,
+    #[xml(child = "return")]
+    ret: Return,
+    #[xml(child = "parameter")]
+    parameter: Vec<Parameter>,
+    #[xml(child = "operation")]
+    operation: Option<Operation>,
+    #[xml(child = "CPUID")]
+    cpuid: Vec<CpuId>,
+}
+
+#[derive(Debug, XmlRead)]
+#[xml(tag = "return")]
+struct Return {
+    /// Element type
+    #[xml(attr = "etype")]
+    etype: Option<String>,
+    #[xml(attr = "type")]
+    r#type: Option<String>,
+    #[xml(attr = "varname")]
+    varname: Option<String>,
+}
+
+#[derive(Debug, XmlRead)]
+#[xml(tag = "parameter")]
+struct Parameter {
+    /// Element type
+    #[xml(attr = "etype")]
+    etype: Option<String>,
+    #[xml(attr = "type")]
+    r#type: Option<String>,
+    #[xml(attr = "varname")]
+    varname: Option<String>,
+}
+
+#[derive(Debug, XmlRead)]
+#[xml(tag = "operation")]
+struct Operation {
+    #[xml(text)]
+    value: String,
+}
+
+#[derive(Debug, XmlRead)]
+#[xml(tag = "CPUID")]
+struct CpuId {
+    #[xml(text)]
+    value: String,
+}
+
+fn main() -> Result<()> {
+    let data = std::fs::read_to_string("intrinsics.xml")
+        .wrap_err("unable to find intrinsics.xml, get the file from the intel intrinsics guide")?;
+
+    let IntrinsicsList { intrinsics: list } =
+        IntrinsicsList::from_str(&data).wrap_err("failed to parse intrinsics.xml")?;
+
+    eprintln!("loaded {} intrinsics", list.len());
+
+    let list = list
+        .into_iter()
+        .filter(|intr| intr.cpuid.iter().any(|cpu| !cpu.value.contains("AVX512")))
+        .filter(|intr| intr.name == "_mm_packus_epi16")
+        .collect::<Vec<_>>();
+
+    eprintln!("filtered: {}", list.len());
+
+    generate::generate(&list).wrap_err("generating rust code")?;
+
+    Ok(())
+}