compiler/rustc_codegen_gcc/src/intrinsic/llvm.rs

   1 use gccjit::Function;
   2
   3 use crate::context::CodegenCx;
   4
   5 pub fn intrinsic<'gcc, 'tcx>(name: &str, cx: &CodegenCx<'gcc, 'tcx>) -> Function<'gcc> {
   6     let _gcc_name =
   7         match name {
   8             "llvm.x86.xgetbv" => {
   9                 let gcc_name = "__builtin_trap";
  10                 let func = cx.context.get_builtin_function(gcc_name);
  11                 cx.functions.borrow_mut().insert(gcc_name.to_string(), func);
  12                 return func;
  13             },
  14             // TODO: this doc specifies the equivalent GCC builtins: http://huonw.github.io/llvmint/llvmint/x86/index.html
  15             "llvm.x86.sse2.cmp.pd" => "__builtin_ia32_cmppd",
  16             "llvm.x86.sse2.movmsk.pd" => "__builtin_ia32_movmskpd",
  17             "llvm.x86.sse2.pmovmskb.128" => "__builtin_ia32_pmovmskb128",
  18             _ => unimplemented!("unsupported LLVM intrinsic {}", name)
  19         };
  20
  21     println!("Get target builtin");
  22     unimplemented!();
  23     /*let func = cx.context.get_target_builtin_function(gcc_name);
  24     cx.functions.borrow_mut().insert(gcc_name.to_string(), func);
  25     func*/
  26 }