From 69e60e351b8b44ca59f814334d6c5d07f1103d96 Mon Sep 17 00:00:00 2001
From: Andrew Kelley <superjoe30@gmail.com>
Date: Thu, 12 Jul 2018 15:22:10 -0400
Subject: [PATCH] self-hosted: better IR for empty fn

avoids a void
---
 src-self-hosted/ir.zig | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/src-self-hosted/ir.zig b/src-self-hosted/ir.zig
index f517dfe57..19bb01847 100644
--- a/src-self-hosted/ir.zig
+++ b/src-self-hosted/ir.zig
@@ -574,9 +574,7 @@ pub const Builder = struct {
         }
 
         _ = try irb.genDefersForBlock(child_scope, outer_block_scope, Scope.Defer.Kind.ScopeExit);
-        const result = try Instruction.Const.buildVoid(irb, child_scope, false);
-        result.setGenerated();
-        return result;
+        return try Instruction.Const.buildVoid(irb, child_scope, true);
     }
 
     fn genDefersForBlock(
@@ -648,8 +646,7 @@ pub async fn gen(module: *Module, body_node: *ast.Node, scope: *Scope, parsed_fi
 
     const result = try irb.genNode(body_node, scope, LVal.None);
     if (!result.isNoReturn()) {
-        const void_inst = try Instruction.Const.buildVoid(&irb, scope, false);
-        (try Instruction.Return.build(&irb, scope, void_inst)).setGenerated();
+        (try Instruction.Return.build(&irb, scope, result)).setGenerated();
     }
 
     return irb.finish();