Remove va_arg from cg_ssa

Author: bjorn3

src/librustc_codegen_llvm/builder.rs

@@ -1136,14 +1136,6 @@ impl BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> {
         }
     }
 
-    #[allow(dead_code)]
-    fn va_arg(&mut self, list: &'ll Value, ty: &'ll Type) -> &'ll Value {
-        self.count_insn("vaarg");
-        unsafe {
-            llvm::LLVMBuildVAArg(self.llbuilder, list, ty, noname())
-        }
-    }
-
     fn extract_element(&mut self, vec: &'ll Value, idx: &'ll Value) -> &'ll Value {
         self.count_insn("extractelement");
         unsafe {
@@ -1514,4 +1506,11 @@ impl Builder<'a, 'll, 'tcx> {
             llvm::LLVMAddIncoming(phi, &val, &bb, 1 as c_uint);
         }
     }
+
+    crate fn va_arg(&mut self, list: &'ll Value, ty: &'ll Type) -> &'ll Value {
+        self.count_insn("vaarg");
+        unsafe {
+            llvm::LLVMBuildVAArg(self.llbuilder, list, ty, noname())
+        }
+    }
 }

src/librustc_codegen_ssa/traits/builder.rs

@@ -262,7 +262,6 @@ pub trait BuilderMethods<'a, 'tcx: 'a>:
         else_val: Self::Value,
     ) -> Self::Value;
 
-    fn va_arg(&mut self, list: Self::Value, ty: Self::Type) -> Self::Value;
     fn extract_element(&mut self, vec: Self::Value, idx: Self::Value) -> Self::Value;
     fn vector_splat(&mut self, num_elts: usize, elt: Self::Value) -> Self::Value;
     fn extract_value(&mut self, agg_val: Self::Value, idx: u64) -> Self::Value;