Implement asm! codegen

2 files changed, 42 insertions, 1 deletions

diff --git a/src/librustc_codegen_ssa/traits/asm.rs b/src/librustc_codegen_ssa/traits/asm.rs
index 1cdfd3ae356..cb2b3545c4c 100644
--- a/src/librustc_codegen_ssa/traits/asm.rs
+++ b/src/librustc_codegen_ssa/traits/asm.rs
@@ -1,7 +1,39 @@
 use super::BackendTypes;
+use crate::mir::operand::OperandRef;
 use crate::mir::place::PlaceRef;
+use rustc_hir::def_id::DefId;
 use rustc_hir::{GlobalAsm, LlvmInlineAsmInner};
+use rustc_middle::ty::Instance;
 use rustc_span::Span;
+use rustc_target::asm::{InlineAsmOptions, InlineAsmRegOrRegClass, InlineAsmTemplatePiece};
+
+#[derive(Debug)]
+pub enum InlineAsmOperandRef<'tcx, B: BackendTypes + ?Sized> {
+    In {
+        reg: InlineAsmRegOrRegClass,
+        value: OperandRef<'tcx, B::Value>,
+    },
+    Out {
+        reg: InlineAsmRegOrRegClass,
+        late: bool,
+        place: Option<PlaceRef<'tcx, B::Value>>,
+    },
+    InOut {
+        reg: InlineAsmRegOrRegClass,
+        late: bool,
+        in_value: OperandRef<'tcx, B::Value>,
+        out_place: Option<PlaceRef<'tcx, B::Value>>,
+    },
+    Const {
+        string: String,
+    },
+    SymFn {
+        instance: Instance<'tcx>,
+    },
+    SymStatic {
+        def_id: DefId,
+    },
+}
 
 pub trait AsmBuilderMethods<'tcx>: BackendTypes {
     /// Take an inline assembly expression and splat it out via LLVM
@@ -12,6 +44,15 @@ pub trait AsmBuilderMethods<'tcx>: BackendTypes {
         inputs: Vec<Self::Value>,
         span: Span,
     ) -> bool;
+
+    /// Take an inline assembly expression and splat it out via LLVM
+    fn codegen_inline_asm(
+        &mut self,
+        template: &[InlineAsmTemplatePiece],
+        operands: &[InlineAsmOperandRef<'tcx, Self>],
+        options: InlineAsmOptions,
+        span: Span,
+    );
 }
 
 pub trait AsmMethods {
diff --git a/src/librustc_codegen_ssa/traits/mod.rs b/src/librustc_codegen_ssa/traits/mod.rs
index f4c09a33285..6b782731d53 100644
--- a/src/librustc_codegen_ssa/traits/mod.rs
+++ b/src/librustc_codegen_ssa/traits/mod.rs
@@ -28,7 +28,7 @@ mod type_;
 mod write;
 
 pub use self::abi::AbiBuilderMethods;
-pub use self::asm::{AsmBuilderMethods, AsmMethods};
+pub use self::asm::{AsmBuilderMethods, AsmMethods, InlineAsmOperandRef};
 pub use self::backend::{Backend, BackendTypes, CodegenBackend, ExtraBackendMethods};
 pub use self::builder::{BuilderMethods, OverflowOp};
 pub use self::consts::ConstMethods;