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Merge pull request #226 from rust-lang/feature/llvm-prefetch

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Implement llvm.prefetch
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antoyo 2022-10-01 18:22:06 -04:00 committed by GitHub
commit 6f1adbd9e3
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1 changed files with 15 additions and 0 deletions
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15
src/intrinsic/llvm.rs
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@ -236,6 +236,11 @@ pub fn adjust_intrinsic_arguments<'a, 'b, 'gcc, 'tcx>(builder: &Builder<'a, 'gcc
let arg2 = builder.context.new_cast(None, arg2, arg2_type); let arg2 = builder.context.new_cast(None, arg2, arg2_type);
args = vec![new_args[0], arg2].into(); args = vec![new_args[0], arg2].into();
}, },
"__builtin_prefetch" => {
let mut new_args = args.to_vec();
new_args.pop();
args = new_args.into();
},
_ => (), _ => (),
} }
} }
@ -393,6 +398,16 @@ pub fn intrinsic<'gcc, 'tcx>(name: &str, cx: &CodegenCx<'gcc, 'tcx>) -> Function
#[cfg(feature="master")] #[cfg(feature="master")]
pub fn intrinsic<'gcc, 'tcx>(name: &str, cx: &CodegenCx<'gcc, 'tcx>) -> Function<'gcc> { pub fn intrinsic<'gcc, 'tcx>(name: &str, cx: &CodegenCx<'gcc, 'tcx>) -> Function<'gcc> {
match name {
"llvm.prefetch" => {
let gcc_name = "__builtin_prefetch";
let func = cx.context.get_builtin_function(gcc_name);
cx.functions.borrow_mut().insert(gcc_name.to_string(), func);
return func
},
_ => (),
}
let gcc_name = match name { let gcc_name = match name {
"llvm.x86.xgetbv" => "__builtin_ia32_xgetbv", "llvm.x86.xgetbv" => "__builtin_ia32_xgetbv",
// NOTE: this doc specifies the equivalent GCC builtins: http://huonw.github.io/llvmint/llvmint/x86/index.html // NOTE: this doc specifies the equivalent GCC builtins: http://huonw.github.io/llvmint/llvmint/x86/index.html