Add RISC-V encodings for copy instructions.

2017-06-14 15:36:25 -07:00
parent 96f1228211
commit 3e1e2b6e5e
4 changed files with 25 additions and 1 deletions
--- a/lib/cretonne/src/isa/riscv/binemit.rs
+++ b/lib/cretonne/src/isa/riscv/binemit.rs
@@ -182,6 +182,18 @@ fn recipe_iret<CS: CodeSink + ?Sized>(func: &Function, inst: Inst, sink: &mut CS
          sink);
 }

+fn recipe_icopy<CS: CodeSink + ?Sized>(func: &Function, inst: Inst, sink: &mut CS) {
+    if let InstructionData::Unary { arg, .. } = func.dfg[inst] {
+        put_i(func.encodings[inst].bits(),
+              func.locations[arg].unwrap_reg(),
+              0,
+              func.locations[func.dfg.first_result(inst)].unwrap_reg(),
+              sink);
+    } else {
+        panic!("Expected Unary format: {:?}", func.dfg[inst]);
+    }
+}
+
 /// U-type instructions.
 ///
 ///   31  11 6